Head-to-head
Pick two athletes to see how the race played out between them — by actual time, head start, and checkpoint.
Athlete A
OfficialChristopher Londraville-Collins
#1210 · 1:40:52 · M46 · Group W · DR
Wave start 8:48 AM (W-DR)
Athlete B
OfficialSierra Peterson
#1206 · 1:48:43 · F45 · Group M · DR
Wave start 8:40 AM (M-DR)
Interpretation
Christopher (W-DR) started at 8:48 AM; Sierra (M-DR) started at 8:40 AM. That gave Sierra a 8 minutes head start on Christopher. On foot, Christopher ran 1:40:52 and Sierra ran 1:48:43 — Christopher was 7:51 faster than Sierra. Christopher took official place 1210th (time-based 1109th) and Sierra took official place 1206th (time-based 1220th). Sierra's head start was enough to flip the official order even though Christopher was faster on foot. Biggest swing: Christopher gained 7:57 from Cardiac to White Gate.
Deltas
ComputedWave start
Sierra Peterson (M-DR) started 8 min earlier than Christopher (W-DR).
- Overall place Δ
- +4
- Actual time Δ
- -7:51
- Section gap Δ
- ±0 (same section)
- Wave start Δ
- 8 min (Sierra earlier)
- Finish clock Δ
- +0:09
- Section place Δ
- -1
Δ = Christopher − Sierra. Negative means Christopher is ahead/faster.
Race timeline
Computed- Sierra (M-DR) started at 8:40 AM.
- Christopher (W-DR) started at 8:48 AM, 8:00 later.
- Actual running time: Christopher was 7:51 faster on foot than Sierra.
- Finish clock: Sierra crossed the line 0:09 ahead of Christopher — Sierra wins this head-to-head.
Δ (A − B): actual -7:51 · finish clock +0:09.
Position through the course
OfficialSegment-by-segment splits
Official| Segment | Christopher | Sierra | Δ |
|---|---|---|---|
| Start to Top of Stairs | 11:05 | 10:46 | +0:19 |
| Stairs to Windy Gap | 8:43 | 7:28 | +1:15 |
| Windy Gap to Muir Woods | 7:54 | 10:36 | -2:42 |
| Muir Woods to Cardiac | 38:49 | 35:24 | +3:25 |
| Cardiac to White Gate | 20:57 | 28:54 | -7:57 |
| White Gate to The Stile | 10:39 | 12:41 | -2:02 |
| The Stile to Finish | 2:45 | 2:54 | -0:09 |
Δ negative = Christopher ran the segment faster.