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
OfficialJulia R Maxwell Bailey
#3 · 57:02 · F30 · Group Q · INV
Wave start 8:16 AM (Q-INV)
Interpretation
Sonia (M-DR) started at 8:40 AM; Julia (Q-INV) started at 8:16 AM. That gave Julia a 24 minutes head start on Sonia because the Runner wave starts 27 minutes after the Invitational wave. On foot, Sonia ran 1:53:21 and Julia ran 57:02 — Julia was 56:19 faster than Sonia. Sonia took official place 1251st (time-based 1251st) and Julia took official place 3rd (time-based 32nd). Julia was faster on foot and finished ahead on the official clock too. Biggest swing: Julia gained 21:19 from Muir Woods to Cardiac.
Deltas
ComputedWave start
Julia R Maxwell Bailey (Q-INV) started 24 min earlier than Sonia (M-DR).
The Runner wave starts 27 min after the Invitational wave.
- Overall place Δ
- +1248
- Actual time Δ
- +56:19
- Section gap Δ
- 27 min (Julia earlier)
- Wave start Δ
- 24 min (Julia earlier)
- Finish clock Δ
- +1:20:19
- Section place Δ
- —
Δ = Sonia − Julia. Negative means Sonia is ahead/faster.
Race timeline
Computed- Julia (Q-INV) started at 8:16 AM.
- Sonia (M-DR) started at 8:40 AM, 24:00 later — the Invitational wave starts 27 min before the Runner wave.
- Actual running time: Julia was 56:19 faster on foot than Sonia.
- Finish clock: Julia crossed the line 1:20:19 ahead of Sonia — Julia wins this head-to-head.
Δ (A − B): actual +56:19 · finish clock +1:20:19.
Position through the course
OfficialSegment-by-segment splits
Official| Segment | Sonia | Julia | Δ |
|---|---|---|---|
| Start to Top of Stairs | 11:36 | 6:46 | +4:50 |
| Stairs to Windy Gap | 10:07 | 5:03 | +5:04 |
| Windy Gap to Muir Woods | 9:43 | 5:20 | +4:23 |
| Muir Woods to Cardiac | 41:45 | 20:26 | +21:19 |
| Cardiac to White Gate | 25:15 | 11:52 | +13:23 |
| White Gate to The Stile | 12:08 | 5:54 | +6:14 |
| The Stile to Finish | 2:47 | 1:41 | +1:06 |
Δ negative = Sonia ran the segment faster.