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
OfficialChris Lundy
#1 · 1:00:42 · F55 · Group J · INV
Wave start 8:10 AM (J-INV)
Interpretation
Sonia (M-DR) started at 8:40 AM; Chris (J-INV) started at 8:10 AM. That gave Chris a 30 minutes head start on Sonia because the Runner wave starts 27 minutes after the Invitational wave. On foot, Sonia ran 1:53:21 and Chris ran 1:00:42 — Chris was 52:39 faster than Sonia. Sonia took official place 1251st (time-based 1251st) and Chris took official place 1st (time-based 71st). Chris was faster on foot and finished ahead on the official clock too. Biggest swing: Chris gained 19:35 from Muir Woods to Cardiac.
Deltas
ComputedWave start
Chris Lundy (J-INV) started 30 min earlier than Sonia (M-DR).
The Runner wave starts 27 min after the Invitational wave.
- Overall place Δ
- +1250
- Actual time Δ
- +52:39
- Section gap Δ
- 27 min (Chris earlier)
- Wave start Δ
- 30 min (Chris earlier)
- Finish clock Δ
- +1:22:39
- Section place Δ
- —
Δ = Sonia − Chris. Negative means Sonia is ahead/faster.
Race timeline
Computed- Chris (J-INV) started at 8:10 AM.
- Sonia (M-DR) started at 8:40 AM, 30:00 later — the Invitational wave starts 27 min before the Runner wave.
- Actual running time: Chris was 52:39 faster on foot than Sonia.
- Finish clock: Chris crossed the line 1:22:39 ahead of Sonia — Chris wins this head-to-head.
Δ (A − B): actual +52:39 · finish clock +1:22:39.
Position through the course
OfficialSegment-by-segment splits
Official| Segment | Sonia | Chris | Δ |
|---|---|---|---|
| Start to Top of Stairs | 11:36 | 7:31 | +4:05 |
| Stairs to Windy Gap | 10:07 | 5:35 | +4:32 |
| Windy Gap to Muir Woods | 9:43 | 5:25 | +4:18 |
| Muir Woods to Cardiac | 41:45 | 22:10 | +19:35 |
| Cardiac to White Gate | 25:15 | 12:14 | +13:01 |
| White Gate to The Stile | 12:08 | 5:57 | +6:11 |
| The Stile to Finish | 2:47 | 1:50 | +0:57 |
Δ negative = Sonia ran the segment faster.