Head-to-head
Pick two athletes to see how the race played out between them — by actual time, head start, and checkpoint.
Athlete A
OfficialSonia Collins
#1251 · 1:53:21 · F45 · Group M · DR
Wave start 8:40 AM (M-DR)
Athlete B
OfficialJean Talbott
#1247 · 1:52:04 · F16 · Group N · DR
Wave start 8:41 AM (N-DR)
Interpretation
Sonia (M-DR) started at 8:40 AM; Jean (N-DR) started at 8:41 AM. That gave Sonia a 1 minute head start on Jean. On foot, Sonia ran 1:53:21 and Jean ran 1:52:04 — Jean was 1:17 faster than Sonia. Sonia took official place 1251st (time-based 1251st) and Jean took official place 1247th (time-based 1247th). Jean was faster on foot and finished ahead on the official clock too. Biggest swing: Sonia gained 1:43 from Muir Woods to Cardiac.
Deltas
ComputedWave start
Sonia Collins (M-DR) started 1 min earlier than Jean (N-DR).
- Overall place Δ
- +4
- Actual time Δ
- +1:17
- Section gap Δ
- ±0 (same section)
- Wave start Δ
- 1 min (Sonia earlier)
- Finish clock Δ
- +0:17
- Section place Δ
- +7
Δ = Sonia − Jean. Negative means Sonia is ahead/faster.
Race timeline
Computed- Sonia (M-DR) started at 8:40 AM.
- Jean (N-DR) started at 8:41 AM, 1:00 later.
- Actual running time: Jean was 1:17 faster on foot than Sonia.
- Finish clock: Jean crossed the line 0:17 ahead of Sonia — Jean wins this head-to-head.
Δ (A − B): actual +1:17 · finish clock +0:17.
Position through the course
OfficialSegment-by-segment splits
Official| Segment | Sonia | Jean | Δ |
|---|---|---|---|
| Start to Top of Stairs | 11:36 | 11:43 | -0:07 |
| Stairs to Windy Gap | 10:07 | 8:48 | +1:19 |
| Windy Gap to Muir Woods | 9:43 | 9:18 | +0:25 |
| Muir Woods to Cardiac | 41:45 | 43:28 | -1:43 |
| Cardiac to White Gate | 25:15 | 24:42 | +0:33 |
| White Gate to The Stile | 12:08 | 11:42 | +0:26 |
| The Stile to Finish | 2:47 | 2:23 | +0:24 |
Δ negative = Sonia ran the segment faster.