Head-to-head
Pick two athletes to see how the race played out between them — by actual time, head start, and checkpoint.
Athlete A
OfficialYoyo Zhou
#660 · 1:11:22 · M40 · Group Y · DR
Wave start 8:50 AM (Y-DR)
Athlete B
OfficialEric Bryan
#657 · 1:10:01 · M29 · Group Z · DR
Wave start 8:51 AM (Z-DR)
Interpretation
Yoyo (Y-DR) started at 8:50 AM; Eric (Z-DR) started at 8:51 AM. That gave Yoyo a 1 minute head start on Eric. On foot, Yoyo ran 1:11:22 and Eric ran 1:10:01 — Eric was 1:21 faster than Yoyo. Yoyo took official place 660th (time-based 366th) and Eric took official place 657th (time-based 323rd). Eric was faster on foot and finished ahead on the official clock too. Biggest swing: Yoyo gained 2:02 from Muir Woods to Cardiac.
Deltas
ComputedWave start
Yoyo Zhou (Y-DR) started 1 min earlier than Eric (Z-DR).
- Overall place Δ
- +3
- Actual time Δ
- +1:21
- Section gap Δ
- ±0 (same section)
- Wave start Δ
- 1 min (Yoyo earlier)
- Finish clock Δ
- +0:21
- Section place Δ
- +10
Δ = Yoyo − Eric. Negative means Yoyo is ahead/faster.
Race timeline
Computed- Yoyo (Y-DR) started at 8:50 AM.
- Eric (Z-DR) started at 8:51 AM, 1:00 later.
- Actual running time: Eric was 1:21 faster on foot than Yoyo.
- Finish clock: Eric crossed the line 0:21 ahead of Yoyo — Eric wins this head-to-head.
Δ (A − B): actual +1:21 · finish clock +0:21.
Position through the course
OfficialSegment-by-segment splits
Official| Segment | Yoyo | Eric | Δ |
|---|---|---|---|
| Start to Top of Stairs | 8:53 | 7:56 | +0:57 |
| Stairs to Windy Gap | 6:08 | 5:37 | +0:31 |
| Windy Gap to Muir Woods | 5:55 | 5:38 | +0:17 |
| Muir Woods to Cardiac | 26:48 | 28:50 | -2:02 |
| Cardiac to White Gate | 13:59 | 13:21 | +0:38 |
| White Gate to The Stile | 7:17 | 6:42 | +0:35 |
| The Stile to Finish | 2:22 | 1:57 | +0:25 |
Δ negative = Yoyo ran the segment faster.