Head-to-head
Pick two athletes to see how the race played out between them — by actual time, head start, and checkpoint.
Athlete A
OfficialPolly Baldwin
#1288 · 2:07:01 · F59 · Group E · DR
Wave start 8:33 AM (E-DR)
Athlete B
OfficialDavid Rosenfeld
#1293 · 2:13:32 · M74 · Group AAA · DR
Wave start 8:27 AM (AAA-DR)
Interpretation
Polly (E-DR) started at 8:33 AM; David (AAA-DR) started at 8:27 AM. That gave David a 6 minutes head start on Polly. On foot, Polly ran 2:07:01 and David ran 2:13:32 — Polly was 6:31 faster than David. Polly took official place 1288th (time-based 1320th) and David took official place 1293rd (time-based 1340th). Polly was faster on foot and finished ahead on the official clock too. Biggest swing: Polly gained 8:33 from Muir Woods to Cardiac.
Deltas
ComputedWave start
David Rosenfeld (AAA-DR) started 6 min earlier than Polly (E-DR).
- Overall place Δ
- -5
- Actual time Δ
- -6:31
- Section gap Δ
- ±0 (same section)
- Wave start Δ
- 6 min (David earlier)
- Finish clock Δ
- -0:31
- Section place Δ
- -19
Δ = Polly − David. Negative means Polly is ahead/faster.
Race timeline
Computed- David (AAA-DR) started at 8:27 AM.
- Polly (E-DR) started at 8:33 AM, 6:00 later.
- Actual running time: Polly was 6:31 faster on foot than David.
- Finish clock: Polly crossed the line 0:31 ahead of David — Polly wins this head-to-head.
Δ (A − B): actual -6:31 · finish clock -0:31.
Position through the course
OfficialSegment-by-segment splits
Official| Segment | Polly | David | Δ |
|---|---|---|---|
| Start to Top of Stairs | 13:19 | 14:31 | -1:12 |
| Stairs to Windy Gap | 13:50 | 12:24 | +1:26 |
| Windy Gap to Muir Woods | 10:22 | 9:11 | +1:11 |
| Muir Woods to Cardiac | 45:11 | 53:44 | -8:33 |
| Cardiac to White Gate | 27:41 | 26:02 | +1:39 |
| White Gate to The Stile | 13:13 | 14:07 | -0:54 |
| The Stile to Finish | 3:25 | 3:33 | -0:08 |
Δ negative = Polly ran the segment faster.