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
OfficialEdward R Owens
#2 · 48:29 · M32 · Group Z · INV
Wave start 8:24 AM (Z-INV)
Interpretation
Sonia (M-DR) started at 8:40 AM; Edward (Z-INV) started at 8:24 AM. That gave Edward a 16 minutes head start on Sonia because the Runner wave starts 27 minutes after the Invitational wave. On foot, Sonia ran 1:53:21 and Edward ran 48:29 — Edward was 1:04:52 faster than Sonia. Sonia took official place 1251st (time-based 1251st) and Edward took official place 2nd (time-based 1st). Edward was faster on foot and finished ahead on the official clock too. Biggest swing: Edward gained 23:53 from Muir Woods to Cardiac.
Deltas
ComputedWave start
Edward R Owens (Z-INV) started 16 min earlier than Sonia (M-DR).
The Runner wave starts 27 min after the Invitational wave.
- Overall place Δ
- +1249
- Actual time Δ
- +1:04:52
- Section gap Δ
- 27 min (Edward earlier)
- Wave start Δ
- 16 min (Edward earlier)
- Finish clock Δ
- +1:20:52
- Section place Δ
- —
Δ = Sonia − Edward. Negative means Sonia is ahead/faster.
Race timeline
Computed- Edward (Z-INV) started at 8:24 AM.
- Sonia (M-DR) started at 8:40 AM, 16:00 later — the Invitational wave starts 27 min before the Runner wave.
- Actual running time: Edward was 1:04:52 faster on foot than Sonia.
- Finish clock: Edward crossed the line 1:20:52 ahead of Sonia — Edward wins this head-to-head.
Δ (A − B): actual +1:04:52 · finish clock +1:20:52.
Position through the course
OfficialSegment-by-segment splits
Official| Segment | Sonia | Edward | Δ |
|---|---|---|---|
| Start to Top of Stairs | 11:36 | 5:48 | +5:48 |
| Stairs to Windy Gap | 10:07 | 4:17 | +5:50 |
| Windy Gap to Muir Woods | 9:43 | 4:16 | +5:27 |
| Muir Woods to Cardiac | 41:45 | 17:52 | +23:53 |
| Cardiac to White Gate | 25:15 | 9:40 | +15:35 |
| White Gate to The Stile | 12:08 | 5:03 | +7:05 |
| The Stile to Finish | 2:47 | 1:33 | +1:14 |
Δ negative = Sonia ran the segment faster.