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Arc of Attrition — arc50k Pacing Calculator
Real GPS-verified course data for Arc of Attrition — arc50k.
Distance
49.0 km
49km
Total climb
1092m
official D+
Total descent
1021m
official D−
High / low
100m
low 2m
25m50m75m100m
0km10km20km30km40km49.0km
Your goal
Goal type
:
hrsmin
Pacing strategy
Constant effort start to finish.
Pacing splits · Even effort
| Section | Length | Target pace | VAM | Vert | GAP | Elapsed |
|---|---|---|---|---|---|---|
| 0m–3.9km | 3.9km | 7:12/km | 101m/hr | +47m | 6:30/km | 27:51 |
| 3.9km–5.0km | 1.1km | 5:25/km | — | −50m | 6:30/km | 34:02 |
| 5.0km–16.3km | 11.3km | 7:10/km | 48m/hr | +64m | 6:30/km | 1:55:06 |
| 16.3km–17.2km | 938m | 6:00/km | — | −44m | 6:30/km | 2:00:44 |
| 17.2km–22.1km | 4.9km | 7:32/km | 67m/hr | +41m | 6:30/km | 2:37:36 |
| 22.1km–24.2km | 2.0km | 6:02/km | — | −49m | 6:30/km | 2:49:53 |
| 24.2km–27.1km | 2.9km | 6:39/km | — | — | 6:30/km | 3:09:13 |
| 27.1km–28.2km | 1.1km | 6:49/km | 63m/hr | +8m | 6:30/km | 3:16:59 |
| 28.2km–32.6km | 4.4km | 6:45/km | — | — | 6:30/km | 3:47:02 |
| 32.6km–33.5km | 843m | 7:50/km | 177m/hr | +20m | 6:30/km | 3:53:39 |
| 33.5km–36.0km | 2.5km | 6:58/km | 34m/hr | +10m | 6:30/km | 4:10:56 |
| 36.0km–37.0km | 1.0km | 5:44/km | — | −32m | 6:30/km | 4:16:56 |
| 37.0km–38.7km | 1.7km | 7:41/km | 182m/hr | +39m | 6:30/km | 4:29:48 |
| 38.7km–40.6km | 1.9km | 6:34/km | — | −32m | 6:30/km | 4:42:08 |
| 40.6km–41.7km | 1.2km | 6:47/km | 64m/hr | +8m | 6:30/km | 4:50:04 |
| 41.7km–44.0km | 2.3km | 6:46/km | — | −12m | 6:30/km | 5:05:26 |
| 44.0km–46.4km | 2.4km | 8:10/km | 262m/hr | +86m | 6:30/km | 5:25:03 |
| 46.4km–49.0km | 2.6km | 6:50/km | 32m/hr | +10m | 6:30/km | 5:43:00 |
GAP is grade-adjusted pace, the flat-equivalent pace for the effort. On an even-effort plan it stays roughly constant while your actual target pace rises on climbs and falls on descents. Switch to “By terrain” to pace the course by its climbs and descents.