Head-to-head
Pick two athletes to see how the race played out between them — by actual time, head start, and checkpoint.
Athlete A
OfficialDavid Weinfeld
#716 · 1:22:46 · M59 · Group P · DR
Wave start 8:42 AM (P-DR)
Athlete B
OfficialAlex Derbyshire
#720 · 1:13:55 · M29 · Group Z · DR
Wave start 8:51 AM (Z-DR)
Comparison report
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The PDF includes the interpretation, deltas, race timeline, position-through-the-course chart, and segment-by-segment splits shown below.
Interpretation
David (P-DR) started at 8:42 AM; Alex (Z-DR) started at 8:51 AM. That gave David a 9 minutes head start on Alex. On foot, David ran 1:22:46 and Alex ran 1:13:55 — Alex was 8:51 faster than David. David took official place 716th (time-based 733rd) and Alex took official place 720th (time-based 449th). David's head start was enough to flip the official order even though Alex was faster on foot. Biggest swing: Alex gained 2:33 from Muir Woods to Cardiac.
Deltas
ComputedWave start
David Weinfeld (P-DR) started 9 min earlier than Alex (Z-DR).
- Overall place Δ
- -4
- Actual time Δ
- +8:51
- Section gap Δ
- ±0 (same section)
- Wave start Δ
- 9 min (David earlier)
- Finish clock Δ
- -0:09
- Section place Δ
- -3
Δ = David − Alex. Negative means David is ahead/faster.
Race timeline
Computed- David (P-DR) started at 8:42 AM.
- Alex (Z-DR) started at 8:51 AM, 9:00 later.
- Actual running time: Alex was 8:51 faster on foot than David.
- Finish clock: David crossed the line 0:09 ahead of Alex — David wins this head-to-head.
Δ (A − B): actual +8:51 · finish clock -0:09.
Position through the course
OfficialSegment-by-segment splits
Official| Segment | David | Alex | Δ |
|---|---|---|---|
| Start to Top of Stairs | 9:11 | 8:39 | +0:32 |
| Stairs to Windy Gap | 7:19 | 6:10 | +1:09 |
| Windy Gap to Muir Woods | 6:34 | 5:40 | +0:54 |
| Muir Woods to Cardiac | 32:26 | 29:53 | +2:33 |
| Cardiac to White Gate | 16:20 | 14:26 | +1:54 |
| White Gate to The Stile | 8:19 | 7:13 | +1:06 |
| The Stile to Finish | 2:37 | 1:54 | +0:43 |
Δ negative = David ran the segment faster.