Head-to-head
Pick two athletes to see how the race played out between them — by actual time, head start, and checkpoint.
Athlete A
OfficialAlex Derbyshire
#720 · 1:13:55 · M29 · Group Z · DR
Wave start 8:51 AM (Z-DR)
Athlete B
OfficialDavid Weinfeld
#716 · 1:22:46 · M59 · Group P · DR
Wave start 8:42 AM (P-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
Alex (Z-DR) started at 8:51 AM; David (P-DR) started at 8:42 AM. That gave David a 9 minutes head start on Alex. On foot, Alex ran 1:13:55 and David ran 1:22:46 — Alex was 8:51 faster than David. Alex took official place 720th (time-based 449th) and David took official place 716th (time-based 733rd). 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 = Alex − David. Negative means Alex 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 | Alex | David | Δ |
|---|---|---|---|
| Start to Top of Stairs | 8:39 | 9:11 | -0:32 |
| Stairs to Windy Gap | 6:10 | 7:19 | -1:09 |
| Windy Gap to Muir Woods | 5:40 | 6:34 | -0:54 |
| Muir Woods to Cardiac | 29:53 | 32:26 | -2:33 |
| Cardiac to White Gate | 14:26 | 16:20 | -1:54 |
| White Gate to The Stile | 7:13 | 8:19 | -1:06 |
| The Stile to Finish | 1:54 | 2:37 | -0:43 |
Δ negative = Alex ran the segment faster.