← All races50-mile coastal ultra
Ring O'Fire: Firelighter 50 Pacing Calculator
A shorter lap of Anglesey's coast, same organizers as the full Ring O'Fire.
Distance
50 mi
80km
Total climb
2500m
official D+
Total descent
2500m
official D−
High / low
87m
low 1m
25m50m75m
0km20km40km60km80km
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–41.4km | 41.4km | 10:23/km | — | −20m | 10:07/km | 7:10:03 |
| 41.4km–43.3km | 1.9km | 10:26/km | 30m/hr | +10m | 10:07/km | 7:30:02 |
| 43.3km–59.0km | 15.7km | 10:42/km | — | −27m | 10:07/km | 10:18:07 |
| 59.0km–60.4km | 1.4km | 11:07/km | 86m/hr | +22m | 10:07/km | 10:33:24 |
| 60.4km–63.3km | 2.9km | 10:10/km | — | −9m | 10:07/km | 11:02:56 |
| 63.3km–64.6km | 1.4km | 13:03/km | 171m/hr | +51m | 10:07/km | 11:20:47 |
| 64.6km–69.6km | 5.0km | 10:18/km | — | −53m | 10:07/km | 12:11:54 |
| 69.6km–72.7km | 3.1km | 11:24/km | 99m/hr | +58m | 10:07/km | 12:47:04 |
| 72.7km–74.4km | 1.7km | 8:15/km | — | −69m | 10:07/km | 13:01:00 |
| 74.4km–80.0km | 5.6km | 10:27/km | 19m/hr | +19m | 10:07/km | 14:00:00 |
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.