The longer it gets, the smaller the math.
Type your ultra target time. We hand you the per-km and per-mile pace — though on a real trail ultra, expect to vary it wildly with terrain.
You ran 10K in 50:00 — that's 5:00 per km.
Ultra paces are slower than road races and vary hugely with terrain. Use these as a baseline, then adjust by 5-15% for elevation and surface.
| Target time | Required pace | Notes |
|---|---|---|
| 4:00:00 (50K) | 4:48/km · 7:43/mi | Elite road 50K territory. |
| 5:00:00 (50K) | 6:00/km · 9:39/mi | Strong amateur road 50K target. |
| 6:00:00 (50K) | 7:12/km · 11:35/mi | A solid first 50K goal. |
| 10:00:00 (100K) | 6:00/km · 9:39/mi | Strong trail 100K target on rolling terrain. |
| 24:00:00 (100 mi) | 8:57/km · 14:24/mi | 100-mile sub-24 — a benchmark goal in trail ultras. |