RunningCalifornia
Running in California
Browse upcoming amateur running events and compare dates, locations, and popularity. in California.
Upcoming dates California Community-rated events
Events listed
500
Sport
Running
Area
California
Radius
600 km
This calendar in numbers
This calendar currently lists 500 upcoming events, from Jul 1, 2026 to Oct 31, 2026. July is the busiest month, with 132 events scheduled. Events are spread across 186 different locations; Long Beach hosts the most (46). Course distances range from 4 km to 115.9 km.
Browse all 500 events by date
July 2026
- Race Across California - 2026 Jul 1
- Bike Hut Classic Jul 3
- Independence Day Dash 5k and Kids Run Jul 3
- Oakley's Star-Spangled Color Run Jul 3
- Stars and Stripes 5k, 10k, 15k, Half Marathon Jul 3
- 2026 Chili Chase Jul 4
- 2026 Santa Cruz Sunrise Rotary Firecracker Run Jul 4
- 2026 YMCA Run in the Parks 5K & Kid's Race Jul 4
- 21st Annual Footloose Freedom Mile Jul 4
- 33rd Annual Village Runner 4th of July Runs Jul 4
- 4th of July 5K Blast Jul 4
- 4th of July 5k/10k Jul 4
- 4th of July Celebration Jul 4
- 4th of July Scripps Ranch 10K Jul 4
- Alameda July 4th Parade 5k Run/ Walk Jul 4
- All American 5K Jul 4
- Anaheim Firecracker 5K/10K Jul 4
- Auburn Mile Jul 4
- Blue Heron 5K Jul 4
- Bridgeport 4th of July Run/Walk at Twin Lakes 2026 Jul 4
- Chester 4th of July Fun Run Jul 4
- Crown City Classic Jul 4
- Crown City Classic 12K & 5K Jul 4
- Fire Cracker 4th 5K Run/Walk www.kavaaz.com Jul 4
- Freedom Run Jul 4
- Independence Day 5K Run & Firecracker Dash Jul 4
- Independence Day 5k, 10k, 15k, Half Marathon Jul 4
- IRVINE 4th of July-Red, White, & Blue 5k & 1 Mile Jul 4
- July 4th Run 5K/10K/13.1 - Las Vegas Jul 4
- July 4th Run 5K/10K/13.1 - Los Angeles Jul 4
- July 4th Run 5K/10K/13.1 - Sacramento Jul 4
- July 4th Run 5K/10K/13.1 - San Diego Jul 4
- July 4th Run 5K/10K/13.1 - San Francisco Jul 4
- July 4th Run 5K/10K/13.1 LAS VEGAS Jul 4
- July 4th Run LAS VEGAS Jul 4
- July 4th Run SACRAMENTO July 4, 2026 Jul 4
- July 4th Run SAN DIEGO Jul 4
- Kenwood Footrace Jul 4
- Kenwood Footrace Jul 4
- Las Vegas 4th of July 5k 10k Jul 4
- Morgan Hill Freedom Run Jul 4
- Orange Park Acres 5k Jul 4
- Palisades Will Rogers 5K/10K Run Jul 4
- Palmdale's Stars, Stripes & Sneakers 5k Jul 4
- Pleasant Hill Firecracker 5K Jul 4
- Red, White & Blue Race Jul 4
- Red, White, & Blue 5K and Fun Run Jul 4
- Rocket Run 2026 Jul 4
- Run 4 Hunger Jul 4
- Run for Chocolate 5K/10K/13.1 LAS VEGAS Jul 4
- Run Like a Hero: 4th of July 5k Jul 4
- San Diego 4th of July 5K & 10K Jul 4
- Stars & Stripes 2026 Jul 4
- Stars & Stripes 5k Jul 4
- Stars and Stripes Jul 4
- Surf City Run Jul 4
- The Great American Race Jul 4
- Woodbridge Village Association 50th Anniversary - Ralph J. Redington 5K/10K Run and Kids Run Jul 4
- Polo Fields 5K Jul 5
- Red, White & Blue 5k, 10k, 15k, Half Marathon Jul 5
- Red, White, and Run – 5K, 10K, and Half Marathon Jul 5
- Glowing in the Streets 5K Jul 10
- Beer City Half Alameda Jul 11
- Bloom Energy & Tarana Wireless Stars and Strides 5K-10K Run/Walk & Kids Fun Run Jul 11
- Bloom Energy and Tarana Wireless Stars & Strides 5K / 10K Jul 11
- DB Beer Bus to Glory Jul 11
- Endless Summer in the LBC 5K, 10K, & Half Marathon by Califlow Runs Jul 11
- San Lorenzo River Trail Run Jul 11
- The Mt. Baldy 5000 Jul 11
- CaliFlow Poker Run: High Stakes & Happy Tails 5K. 10K. 1 Miler Jul 12
- Echo Park Lotus Run Jul 12
- LBC Summer Breeze Jul 12
- Manhattan Mile Jul 12
- Shoreline Marathon Jul 12
- Summer Break 5k, 10k, 15k, Half Marathon Jul 12
- Sunset Through the Trees Fun Runs Jul 14
- Track Night SF Presented by Tracksmith Jul 15
- Popsicle Dash - Free Community Event - 5K by Califlow Runs Jul 16
- Tahoe Trail Jul 17
- Bad Bass 2026 Jul 18
- Christmas in July 5K - Fresno Jul 18
- Davis Moonlight Race Jul 18
- Davis Moonlight Run Jul 18
- Davis Moonlight Run Vendor Registration Jul 18
- Hot to Trot 5k, 10k, 15k, Half Marathon Jul 18
- I Run They Learn Jul 18
- J5K Jul 18
- Napa to Sonoma Half Marathon & Rose 5K Jul 18
- Peach Festival 5k/10k Jul 18
- San Diego Pride 5K Run + Walk Jul 18
- Tahoe Rim Trail Endurance Runs Jul 18
- Venice Beach Run Jul 18
- 10th Annual We Run Richmond 5K Jul 19
- CaliFlow Verano Run - Griffith Park Summer 5K • 10K • 1 Miler Jul 19
- California MTB Endurance Series Jul 19
- Rockaway Beach 5k Jul 19
- Rockin’ Summer 5k, 10k, 15k, Half Marathon Jul 19
- I'm Your Huckleberry 5K (Sponsored by AREC) Jul 23
- South Bay 24 Jul 24
- South Bay 24 & South Bay Mini Jul 24
- Break the Chains: A Walk for Cult Recovery - 2026 International Cult Awareness Month Jul 25
- China Airlines Bridge Half Marathon 2026 Jul 25
- Dirty Dozen Endurance Run 2026 Jul 25
- Eastbound's Christmas in July 5K Jul 25
- Glow Night Run/Walk 5K Jul 25
- Joggin' for Frogmen 5K - San Diego, CA Jul 25
- LBC - Good Vibes Run 5K, 10K, & Half Marathon by Califlow Runs Jul 25
- Miguel Reyes Elite/Fun 5K Jul 25
- Run for Coffee Lovers 5K/10K/13.1 - Las Vegas Jul 25
- Run for Coffee Lovers 5K/10K/13.1 - Los Angeles Jul 25
- Run for Coffee Lovers 5K/10K/13.1 - Sacramento Jul 25
- Run for Coffee Lovers 5K/10K/13.1 - San Diego Jul 25
- Run for Coffee Lovers 5K/10K/13.1 - San Francisco Jul 25
- Run for Coffee Lovers 5K/10K/13.1 LAS VEGAS Jul 25
- Run for Coffee Lovers LAS VEGAS Jul 25
- Run for Coffee Lovers SACRAMENTO Jul 25
- Run for Coffee Lovers SAN DIEGO Jul 25
- Run for Donuts 5K/10K/13.1 LAS VEGAS Jul 25
- San Francisco Alexi Pappas 10K 2026 Jul 25
- San Francisco City Half Marathon 2026 Jul 25
- SFM Ultramarathon 2026 Jul 25
- Superhero 5K/10K Walk-Run-Roll & Summer Festival in Support of the Special Needs Community hosted by San Andreas Regional Center Jul 25
- 2026 Wharf to Wharf - Loyalty Status Verification Jul 26
- 2026 Wharf to Wharf Race Jul 26
- 3rd Annual TRANS PRIDE 5K – 10K, Picnic, Resource Fair Jul 26
- Courtland Pear Fair 5 and 10 Mile Run Jul 26
- Glow Run Night Glow Run 5K 10K Half Marathon - SummerWeen Series by Califlow Runs Jul 26
- San Francisco Marathon 2026 Jul 26
- Solana Beach Triathlon & 5k Jul 26
- Summer Fun 5k, 10k, 15k, Half Marathon Jul 26
- The San Francisco Marathon 2026 Jul 26
- Wharf to Wharf Jul 26
August 2026
- Balboa Park 8 Miler Aug 1
- Dick Fitzgerald Two-Mile Beach Run Aug 1
- Dog Days of Summer – 5K, 10K, 10M, and Half Marathon Aug 1
- ET Full Moon Midnight Marathon Aug 1
- Pride of the Valley 5K & 10K Aug 1
- Rodeo Valley Trail Run Aug 1
- Stronger Families Safer Kids 5K Aug 1
- Summer Breeze 2026 Aug 1
- Summer Breeze Half Marathon, 10k/5k Aug 1
- Susan B Anthony Women's 5k Aug 1
- Susan B Anthony Women’s 5K Aug 1
- Tiki Time Run: Paradise Run 5K, 10K, & Half Marathon by Califlow Runs Aug 1
- Camarillo Marathon Aug 2
- Golden Gate 10K, 5K and Double 8K Aug 2
- Golden Gate 10K, 5K, and Double 8K Aug 2
- Golden Gate Double 8K, Golden Gate 10K, Golden Gate 5K Aug 2
- Skyline 50K Endurance Run Aug 2
- Track Night Los Angeles Aug 4
- Lanark Park Summer Night Lights 5K Aug 6
- Falcon 5K Aug 8
- Hell of a Half Marathon Aug 8
- Lucky 8 5k, 10k, 15k, Half Marathon Aug 8
- Margaritaville Run - San Diego Gaslamp Aug 8
- Margaritaville Run San Diego Gaslamp 10K & 5K Aug 8
- Noyo Headlands Race Aug 8
- The Napa Lapa Trail Adventure Aug 8
- Howl at the Moon- 5K, 10K, 10 Miler and Half Marathon Aug 9
- Marlette 50K and 10-Miler Aug 9
- Pinecrest Run Aug 9
- Strut & Sweat Runway to Rhythm 5K Aug 9
- Sun and Summit 5k, 10k, 15k, Half Marathon Aug 9
- Sundae Funday - Ice Cream Run 5K, 10K & Half Marathon Aug 9
- The OC Fair Fun Run Aug 9
- Tri Santa Cruz Aug 9
- 5K Entry Hot Dog Lemonade with or without Pet Aug 15
- 9th Annual Monsoon Madness Aug 15
- Bagel Run 5K/10K/13.1 LAS VEGAS Aug 15
- Bagel Run 5K/10K/13.1 LOS ANGELES Aug 15
- Bagel Run 5K/10K/13.1 SACRAMENTO Aug 15
- Bagel Run 5K/10K/13.1 SACRAMENTO Aug 15
- Bagel Run 5K/10K/13.1 SAN DIEGO Aug 15
- Bagel Run 5K/10K/13.1 SAN FRANCISCO Aug 15
- Beer City Half Slam Aug 15
- Bulldog 50K and 25K Trail Runs Aug 15
- Date Night- Fiesta For Two Aug 15
- Harvest Picnic 5K Aug 15
- Idyllwild Race 5K / 10K Aug 15
- Liberty Ruck & 5k Aug 15
- Run for PB& J LAS VEGAS Aug 15
- Run for PB& J SACRAMENTO Aug 15
- Run for PB& J SAN DIEGO Aug 15
- Run for PB&J 5K/10K/13.1 - Las Vegas Aug 15
- Run for PB&J 5K/10K/13.1 - Los Angeles Aug 15
- Run for PB&J 5K/10K/13.1 - Sacramento Aug 15
- Run for PB&J 5K/10K/13.1 - San Diego Aug 15
- Run for PB&J 5K/10K/13.1 - San Francisco Aug 15
- Run for PB&J 5K/10K/13.1 LAS VEGAS Aug 15
- Summer Sensation 5k, 10k, 15k, Half Marathon Aug 15
- TACO FUN RUN- BAKERSFIELD Aug 15
- Wounded Warrior Project Carry Forward 5K - San Diego Aug 15
- 2026 AMERICA’S FINEST CITY HALF MARATHON & 5K Aug 16
- America's Finest City Half Marathon & 5K Aug 16
- CVC San Diego Triathlon & 5K Aug 16
- Heroes 4 Hearing 5K Aug 16
- Heroes For Hearing 5K Aug 16
- LA's Race Against Gun Violence Aug 16
- Lands' End 5K Aug 16
- Never Say Die Run 5K. 10K. Half Marathon An 80s Nostalgia Adventure Run Aug 16
- Oakland Cubs Back2School 5K and Fun Run Aug 16
- Pacific Breeze 5k, 10k, 15k, Half Marathon Aug 16
- Race Thru the Redwoods Aug 16
- Run For The Health Of It Aug 16
- TACO FUN RUN- FRESNO Aug 16
- The SF Mile Aug 16
- Route 1: San Jose Elementary School, San Jose Middle School to Stratford Preparatory Aug 19
- Albert Rivera Menudo Run Aug 22
- Dream Big 5k Aug 22
- Fillmore-Japantown Find-Your-Way 5K, 10K San Francisco Aug 22
- Race For the Arts Aug 22
- Race for the Arts 5K Aug 22
- Race2Unravel Aug 22
- Sly Park Trail Run - Summer Edition Aug 22
- Steps4SMILEs 5k/10k Charity Race Aug 22
- Summer Breeze 5k, 10k, 15k, Half Marathon Aug 22
- The Santa Rosa Marathon Aug 22
- Walt Stack DSE Double Dipsea 2026 Aug 22
- We Run Oakland: For Our Children 2026 Aug 22
- Californian Dreamin 5K, 10K, & Half Marathon by Califlow Runs Aug 23
- Journal Jog 8K Aug 23
- One Love Run – 5K, 10K, 10M, and Half Marathon Aug 23
- Santa Rosa Marathon Aug 23
- Shoreline Park Half Marathon Aug 23
- Blacklight Run Pomona 2026 Aug 29
- MAYHEM Fitness Race San Diego Aug 29
- Moonlight Madness Aug 29
- Move4Life's Half-Marathon Aug 29
- Night of the Running Dead 5K, 10K, 1 Miler, Half Marathon SummerWeen Series by Califlow Runs Aug 29
- Run for Beer - Culture Brewing Aug 29
- Run for Breast Cancer 5K/10K/13.1 LAS VEGAS Aug 29
- Run for Breast Cancer 5K/10K/13.1 SACRAMENTO Aug 29
- Run for Breast Cancer 5K/10K/13.1 SAN DIEGO Aug 29
- Sloth Run 5K/10K/13.1 - Las Vegas Aug 29
- Sloth Run 5K/10K/13.1 - Los Angeles Aug 29
- Sloth Run 5K/10K/13.1 - Sacramento Aug 29
- Sloth Run 5K/10K/13.1 - San Diego Aug 29
- Sloth Run 5K/10K/13.1 - San Francisco Aug 29
- Sloth Run 5K/10K/13.1 LAS VEGAS Aug 29
- Sloth Run LAS VEGAS Aug 29
- Sloth Run SACRAMENTO Aug 29
- Sloth Run SAN DIEGO 2026 Aug 29
- Apple City 5k Aug 30
- Crissy Field 5K--REVERSE!!! Aug 30
- Crystal Springs Summer Trail Run Aug 30
- Let Your Imagination Run 5k & Children’s 1k Aug 30
- Run Tiburon 5K & 10K Aug 30
- Run Tiburon 5K & 10K Aug 30
- SPASM Lake Chabot Trail Run Aug 30
- Walk for Paws Aug 30
September 2026
- HART PARK AFTER HOURS SERIES Sep 3
- 9/11 Run to Remember Sep 5
- A Snail's Pace x ASICS Sunset Mile Sep 5
- Beach Day 5k, 10k, 15k, Half Marathon Sep 5
- Fiesta 10K Run Sep 5
- Grape Day 5k Sep 5
- Grape Day 5k - 2026 Sep 5
- Ignite The Light 5K & Resource Fair Sep 5
- NIGHT NATION RUN - SAN JOSE Sep 5
- Walk 4 Life Sep 5
- Diablo Trail Run Sep 6
- Ryan's Ranch Run Sep 6
- Summer Day 5k, 10k, 15k, Half Marathon Sep 6
- Surfers Point Marathon Sep 6
- Long Beach Labor Day 5K, 10K, 1 Miler, Kids Dash Sep 7
- of Fort to Fort 10K Sep 9
- J.P. Morgan Corporate Challenge - San Francisco Sep 10
- 16th Annual Donor Network West Foundation Run/Walk Sep 12
- Beer City Half Bishop Ranch Sep 12
- Beer City Half Long Beach Sep 12
- Berkeley Trail Adventure Sep 12
- Donor Network West Foundation 5K Run/Walk - San Ramon Sep 12
- Los Angeles Sunset Relays | 5K & Kid Run Sep 12
- MVRRC Shoe4Africa 5K Championship & Kids 1-mile Championship (Cash Prize) Sep 12
- Nash Ranch Mud Run Sep 12
- National Chocolate Day Run for Chocolates 5K/10K/13.1 - Las Vegas Sep 12
- National Chocolate Day Run for Chocolates 5K/10K/13.1 - Los Angeles Sep 12
- National Chocolate Day Run for Chocolates 5K/10K/13.1 - Sacramento Sep 12
- National Chocolate Day Run for Chocolates 5K/10K/13.1 - San Diego Sep 12
- National Chocolate Day Run for Chocolates 5K/10K/13.1 - San Francisco Sep 12
- National Chocolate Day Run for Chocolates LAS VEGAS Sep 12
- National Chocolate Day Run for Chocolates SACRAMENTO Sep 12
- National Chocolate Day Run for Chocolates SAN DIEGO Sep 12
- National Chocolate Day: Run for Chocolates 5K/10K/13.1 LAS VEGAS Sep 12
- National Chocolate Day: Run for Chocolates 5K/10K/13.1 SACRAMENTO Sep 12
- Raz'N Health Fitness Festival Sep 12
- Rise to the Top 5k, 10k, 15k, Half Marathon Sep 12
- Run for Mental Health 5K/10K/13.1 LAS VEGAS Sep 12
- Run for Mental Health 5K/10K/13.1 SAN DIEGO Sep 12
- San Diego 5K SCADaddle for Research Sep 12
- San Diego Neighborhood Cruise 5K & 10K Run/Walk Sep 12
- SD Triathlon Classic & 5k Sep 12
- She.is.beautiful - Santa Barbara 5k & 10k Sep 12
- She.is.beautiful 5k & 10k Santa Barbara 2026 Sep 12
- Stevens Creek Striders Reservoir Run Sep 12
- The Syty Marathon Sep 12
- 2026 Dune Run 5k Early Bird (registration only) Sep 13
- Aloha Run San Diego Sep 13
- Beach Fun 5k, 10k, 15k, Half Marathon Sep 13
- Buffalo Stampede Run Sep 13
- Delta Harvest Run Sep 13
- Gold Country Run 5K, 10K, and Kids K Sep 13
- Park to Playa 10K Sep 13
- Race To Slow The Pace Sep 13
- Santa Monica Classic Sep 13
- Seasonal Confusion 5K. 10K. Half Marathon by Califlow Runs Sep 13
- Mammoth BUFF - Beer Mile Run Sep 18
- Mile Madness Endurance Run Sep 18
- San Diego Torch Relay Sep 18
- 2026 Surf City 10 Sep 19
- Anime Fan and Fitness Festival Sep 19
- Bayside Saved by the Bell 5K, 10K & Half Marathon Sep 19
- Bikes & Beers Ventura Sep 19
- Candlelighters Superhero 5K Sep 19
- Fast Track To A Cure 5K Bay Area Sep 19
- Race to Cure Sarcoma San Diego Sep 19
- Red Rock Sunset Rumble Sep 19
- Rocky Ridge 2026 Sep 19
- Run for Coffee 5k / 10k / 13.1 - Roseville Sep 19
- Run with the Cops 5K Sep 19
- Santa Barbara County 11th Annual Organ Donation Celebration Walk and BBQ Sep 19
- Season of the Witch 5K 10K by Califlow Runs Sep 19
- Smokey Bear Run Sep 19
- The Newark Mile 4K Sep 19
- 10th Annual SJVRC ONE MILE FOR ONE CHILD Charity Run 2026 Sep 20
- 18th Annual Sevathon 2026 Sep 20
- Alameda Island Running Festival Sep 20
- Aloha Run Long Beach Sep 20
- Hot Pink Fun Run - Bubbles & Brews Sep 20
- La Noche de las Brujas Run -SummerWeen Series 5K 10K Half by Califlow Runs Sep 20
- Richmond District Jog in the Fog 5K Sep 20
- Run Your Gourd Off! Sep 20
- Stronger Together 2026! 1K/5k Walk/Run and Family Event! Sunday, September 20th Sep 20
- Surf City 10 Sep 20
- 33rd YCMA Stair Climb & Urban Hike Sep 25
- 2026 Los Angeles Dodgers Foundation Sunset Run Sep 26
- 2026 San Jose Trail Challenge Sep 26
- A Walk/Run to Remember 2026 Sep 26
- Be The Light 5K Sep 26
- Belmont Water Dog Run Sep 26
- Blazin' Eagles 5K Fun Run/Walk Sep 26
- Building Dreams Southland Regional Association of Realtors 5K Sep 26
- CASA Superhero Run 2026 Sep 26
- Dick Collins Firetrails Sep 26
- Donor Network West Foundation 5K Run/Walk - Fresno Sep 26
- Hot Pursuit 5k, 10k, 15k, Half Marathon Sep 26
- Los Angeles Dodgers Foundation Sunset Run Sep 26
- Oktoberfest Run 5K/10K/13.1 - Las Vegas Sep 26
- Oktoberfest Run 5K/10K/13.1 - Los Angeles Sep 26
- Oktoberfest Run 5K/10K/13.1 - Sacramento Sep 26
- Oktoberfest Run 5K/10K/13.1 - San Diego Sep 26
- Oktoberfest Run 5K/10K/13.1 - San Francisco Sep 26
- Oktoberfest Run 5K/10K/13.1 LAS VEGAS Sep 26
- Oktoberfest Run 5K/10K/13.1 SAN DIEGO Sep 26
- Oktoberfest Run SACRAMENTO Sep 26
- Oktoberfest Run SAN DIEGO Sep 26
- R5K Recovery Run/Walk Sep 26
- Ridge Rambler 5k Sep 26
- Run for Donuts 5K/10K/13.1 LAS VEGAS Sep 26
- Run for Donuts 5K/10K/13.1 SAN DIEGO Sep 26
- Sprinkle Dash Kids Color Run 2026 Sep 26
- The 9th Annual Belmont Water Dog Run Sep 26
- Urban Cow Half Marathon and 5K Sep 26
- 10K On The Bay Sep 27
- Alive Together: Uniting to Prevent Suicide Sep 27
- Barra of Mendocino Harvest Celebration Run 5k Sep 27
- KCF Calabasas 5K Run Sep 27
- Lake Merced ½ Marathon and 4.5 Mile Run Sep 27
- Take Me to Your Pizza : Alien Dash 5K. 10K. Half Marathon Sponsored by Domino's Pizza Sep 27
- The Auburn Half Marathon 2026 Sep 27
- Tiki Beach 5K/10K Sep 27
- Urban Cow Weekend 2026 Sep 27
- Vegas Half 5k 10k Sep 27
October 2026
- 2026 Santa Cruz Sunrise Rotary Ride - 29th Annual! Oct 1
- 2026 Rock 'n' Roll San Jose Oct 3
- 2026 Rock 'n' Roll San Jose 5K Oct 3
- 2026 Rock n Roll San Jose 10K Oct 3
- 2026 Rock n Roll San Jose Half Marathon Oct 3
- 2026 SKECHERS Wicked Wine Run Sacramento FALL DATE Oct 3
- 49th Annual Manhattan Beach 10K Oct 3
- Awesome 80's Run Oct 3
- Cabrillo Beach 5K Oct 3
- Haunted Heroes 5k, 10k, 15k, Half Marathon Oct 3
- Manhattan Beach 10K Oct 3
- Mean Girls 5K, 10K & Half Marathon Oct 3
- Oktoberfest 5K Oct 3
- Pacific Beach Half Marathon & 5K Oct 3
- Palm Desert Torch Relay Oct 3
- Rock 'n' Roll San Jose Oct 3
- Signal Peak Trail Runs Oct 3
- St. George Marathon Oct 3
- Superheroes Triumph! 5K OC 2026 Oct 3
- T9 Mermaid Tri & Du Capitola Oct 3
- 2026 Rock 'n' Roll San Jose 10K Oct 4
- 2026 Rock 'n' Roll San Jose Half Marathon Oct 4
- BAY FRONT RUN Oct 4
- Cindy's Race Oct 4
- Every Woman Counts 5k & 10k Walk/Run Oct 4
- Napa Half Marathon Oct 4
- Pacific Beach Half Marathon & 5K Oct 4
- Peace Officer Memorial Run Oct 4
- Redding Breakfast Lions Turtle Bay Run 2026 Oct 4
- Reyes Adobe Days "RAD" 5K Oct 4
- Vegas Strong 5K Oct 4
- Sparks Biggest Little Ultra Oct 9
- 2026 2XU Long Beach Marathon & Half Marathon Oct 10
- 2XU Long Beach 5K 2026 Oct 10
- A Snail's Pace x Saucony Sunset Relays Oct 10
- Bagel Run 5K/10K/13.1 LAS VEGAS Oct 10
- Bagel Run 5K/10K/13.1 LOS ANGELES Oct 10
- Bagel Run 5K/10K/13.1 SACRAMENTO Oct 10
- Bagel Run 5K/10K/13.1 SAN DIEGO Oct 10
- Bagel Run 5K/10K/13.1 SAN FRANCISCO Oct 10
- Bikes & Beers San Diego Oct 10
- BOLD BREAKTHROUGHS 2026 CSNK2A1 Foundation Virtual Run, Walk & Roll Oct 10
- Bubble Run | Irvine 2026 Oct 10
- Coffee Lovers Run 5K/10K/13.1 LAS VEGAS Oct 10
- Coffee Lovers Run 5K/10K/13.1 LOS ANGELES Oct 10
- Coffee Lovers Run 5K/10K/13.1 SACRAMENTO Oct 10
- Coffee Lovers Run 5K/10K/13.1 SAN DIEGO Oct 10
- Coffee Lovers Run 5K/10K/13.1 SAN FRANCISCO Oct 10
- ERS SEASON PASS Oct 10
- Long Beach Race for Rare 5K Run & Walk Event Oct 10
- UCI Anti-Cancer Challenge Oct 10
- Zombie Run 5K and 1 Mile Walk 2026 Oct 10
- 2026 Humboldt Redwoods Marathon, Half Marathon, 5K Oct 11
- 2XU Long Beach Half Marathon 2026 Oct 11
- Bizz Johnson Trail Marathon Oct 11
- Clo Cow Half Marathon, 10K & 5K Oct 11
- Clo-Cow Half Marathon and 5K Oct 11
- Mission Bay Triathlon and San Diego Tri Series 5K Oct 11
- Montebello Heritage 5K/10K Oct 11
- OktoberFest Pumpkin Run Oct 11
- The 2026 Run for Education Oct 11
- The Original Las Vegas Marathon Oct 11
- The Run For Education Oct 11
- Windmill 10k Oct 11
- Bike to Hope 2026 Oct 16
- Cal Neva Marathon Oct 16
- Lakeside Marathon Oct 16
- Nevada Half Marathon Oct 16
- Tahoe Double Marathon Oct 16
- 2026 Boyle Heights 5K Run/Walk Oct 17
- Back to the Future: 88 MPH Dash 5K, 10K & Half Oct 17
- Dam Spooky 5k, 10k, 15k, Half Marathon Oct 17
- Diablo Summit Stomp 2026 Oct 17
- Lake Hodges Trail Fest Oct 17
- Palm Springs Aerial Tram Road Challenge Oct 17
- Springville Apple Run Oct 17
- The 72 Mile Tahoe Midnight Express Oct 17
- The Donut Fun Run Oct 17
- 2026 - City to the Sea Half Marathon & 5K Oct 18
- 48th Annual Pumpkin Run by Senior Coastsiders October 18, 2026 Oct 18
- Beverly Hills Run of the Stars: 2026 Oct 18
- Cloverdale Vineyard Races: 10K and 5K Oct 18
- Diplo's Run Club 5k - San Francisco Oct 18
- Emerald Bay Half Marathon Oct 18
- Jeepers Creepers Marathon Oct 18
- Lake Tahoe Marathon Oct 18
- LIVE LIKE JOJO SUPERHERO EXPERIENCE 2026 Oct 18
- Mission Inn Run Oct 18
- MISSION INN RUN Oct 18
- San Mateo Rotary Fun Run Oct 18
- The Fresno Donut Run Oct 18
- The Tahoe 10K Oct 18
- Witches Wave - Halloween Run 5K, 10K, and Half Marathon by Califlow Runs Oct 18
- Zero Prostate Cancer Run/Walk - Greater Los Angeles Oct 18
- 2026 World Championship Event Oct 19
- DeltaX Table Tennis League Oct 22
- Ragnar Trail So Cal Oct 23
- 2026 Napa Fall Wine Country Marathon, Half Marathon, 10K, & 5K Oct 24
- Big Sur River Run Oct 24
- Bike The Coast Oct 24
- CASA Superhero Run Oct 24
- Eden Rift Haunted Wine Run 5k Oct 24
- Malibu Moves Oct 24
- Malibu Moves: Half Marathon, 10K, 5K, 1-Mi & 1K Oct 24
- Miles for Migraine - San Francisco 2026 Oct 24
- Miles for Migraine San Francisco Oct 24
- Monster Dash 5k, 10k, 15k, Half Marathon Oct 24
- Monster Mash Dash Halloween Run Oct 24
- NIGHT NATION RUN - SACRAMENTO Oct 24
- RunThrough USA Long Beach 5k, 10k & Half Marathon (October edition) Oct 24
- Sly Park Trail Run - Fall Edition Oct 24
- 2026 BINATIONAL RACE Oct 25
- 2026 Dia De Los Miles Oct 25
- Bakersfield Monster Mash Dash Oct 25
- Crown Point Half-Marathon & Marathon Relay, 8K & 5K Oct 25
- Day of The Dead 5K & 10k Oct 25
- Dia de los Miles 5K Oct 25
- Marathon de Las Vegas Oct 25
- Santa Cruz Marathon Oct 25
- Sharsheret West Coast Dash Oct 25
- Trick or Trot 5K, 10K, and Half Marathon by Califlow Runs Oct 25
- Winters Spooktacular Fun Run and Costume Contest Oct 25
- USS Hornet Halloween Twilight 5k Oct 30
- Día De Los Muertos 5k Race Oct 31
- Halloween Trick or Trot Run 5K/10K/13.1 LAS VEGAS Oct 31
- Halloween Trick or Trot Run 5K/10K/13.1 SAN DIEGO Oct 31
- Happy Halloween 5k, 10k, 15k, Half Marathon Oct 31