Head-to-head
Pick two athletes to see how the race played out between them — by actual time, head start, and checkpoint.
Athlete A
OfficialJonnie A Alper
#1158 · 1:46:00 · M62 · Group L · DR
Wave start 8:39 AM (L-DR)
Athlete B
OfficialKawa Chiu
#1154 · 1:47:23 · F53 · Group J · DR
Wave start 8:37 AM (J-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
Jonnie (L-DR) started at 8:39 AM; Kawa (J-DR) started at 8:37 AM. That gave Kawa a 2 minutes head start on Jonnie. On foot, Jonnie ran 1:46:00 and Kawa ran 1:47:23 — Jonnie was 1:23 faster than Kawa. Jonnie took official place 1158th (time-based 1179th) and Kawa took official place 1154th (time-based 1204th). Kawa's head start was enough to flip the official order even though Jonnie was faster on foot. Biggest swing: Jonnie gained 1:03 from Top of Stairs to Windy Gap.
Deltas
ComputedWave start
Kawa Chiu (J-DR) started 2 min earlier than Jonnie (L-DR).
- Overall place Δ
- +4
- Actual time Δ
- -1:23
- Section gap Δ
- ±0 (same section)
- Wave start Δ
- 2 min (Kawa earlier)
- Finish clock Δ
- +0:37
- Section place Δ
- +18
Δ = Jonnie − Kawa. Negative means Jonnie is ahead/faster.
Race timeline
Computed- Kawa (J-DR) started at 8:37 AM.
- Jonnie (L-DR) started at 8:39 AM, 2:00 later.
- Actual running time: Jonnie was 1:23 faster on foot than Kawa.
- Finish clock: Kawa crossed the line 0:37 ahead of Jonnie — Kawa wins this head-to-head.
Δ (A − B): actual -1:23 · finish clock +0:37.
Position through the course
OfficialSegment-by-segment splits
Official| Segment | Jonnie | Kawa | Δ |
|---|---|---|---|
| Start to Top of Stairs | 12:20 | 11:34 | +0:46 |
| Stairs to Windy Gap | 9:03 | 10:06 | -1:03 |
| Windy Gap to Muir Woods | 8:09 | 8:35 | -0:26 |
| Muir Woods to Cardiac | 40:51 | 41:08 | -0:17 |
| Cardiac to White Gate | 22:03 | 22:37 | -0:34 |
| White Gate to The Stile | 10:32 | 10:26 | +0:06 |
| The Stile to Finish | 3:02 | 2:57 | +0:05 |
Δ negative = Jonnie ran the segment faster.