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
OfficialKai K Emerson
#711 · 1:13:30 · M19 · 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; Kai (Z-DR) started at 8:51 AM. That gave David a 9 minutes head start on Kai. On foot, David ran 1:22:46 and Kai ran 1:13:30 — Kai was 9:16 faster than David. David took official place 716th (time-based 733rd) and Kai took official place 711th (time-based 436th). Kai was faster on foot and finished ahead on the official clock too. Biggest swing: Kai gained 5:46 from Muir Woods to Cardiac.
Deltas
ComputedWave start
David Weinfeld (P-DR) started 9 min earlier than Kai (Z-DR).
- Overall place Δ
- +5
- Actual time Δ
- +9:16
- Section gap Δ
- ±0 (same section)
- Wave start Δ
- 9 min (David earlier)
- Finish clock Δ
- +0:16
- Section place Δ
- -2
Δ = David − Kai. Negative means David is ahead/faster.
Race timeline
Computed- David (P-DR) started at 8:42 AM.
- Kai (Z-DR) started at 8:51 AM, 9:00 later.
- Actual running time: Kai was 9:16 faster on foot than David.
- Finish clock: Kai crossed the line 0:16 ahead of David — Kai wins this head-to-head.
Δ (A − B): actual +9:16 · finish clock +0:16.
Position through the course
OfficialSegment-by-segment splits
Official| Segment | David | Kai | Δ |
|---|---|---|---|
| Start to Top of Stairs | 9:11 | 8:03 | +1:08 |
| Stairs to Windy Gap | 7:19 | 5:21 | +1:58 |
| Windy Gap to Muir Woods | 6:34 | 6:40 | -0:06 |
| Muir Woods to Cardiac | 32:26 | 26:40 | +5:46 |
| Cardiac to White Gate | 16:20 | 17:39 | -1:19 |
| White Gate to The Stile | 8:19 | 7:29 | +0:50 |
| The Stile to Finish | 2:37 | 1:38 | +0:59 |
Δ negative = David ran the segment faster.