Head-to-head
Pick two athletes to see how the race played out between them — by actual time, head start, and checkpoint.
Athlete A
OfficialNathan R van Hoff
#809 · 1:28:05 · M10 · Group N · DR
Wave start 8:41 AM (N-DR)
Athlete B
OfficialThomas G Sprankling
#812 · 1:19:14 · M40 · Group Y · DR
Wave start 8:50 AM (Y-DR)
Interpretation
Nathan (N-DR) started at 8:41 AM; Thomas (Y-DR) started at 8:50 AM. That gave Nathan a 9 minutes head start on Thomas. On foot, Nathan ran 1:28:05 and Thomas ran 1:19:14 — Thomas was 8:51 faster than Nathan. Nathan took official place 809th (time-based 867th) and Thomas took official place 812th (time-based 624th). Nathan's head start was enough to flip the official order even though Thomas was faster on foot. Biggest swing: Thomas gained 3:55 from Muir Woods to Cardiac.
Deltas
ComputedWave start
Nathan R van Hoff (N-DR) started 9 min earlier than Thomas (Y-DR).
- Overall place Δ
- -3
- Actual time Δ
- +8:51
- Section gap Δ
- ±0 (same section)
- Wave start Δ
- 9 min (Nathan earlier)
- Finish clock Δ
- -0:09
- Section place Δ
- -30
Δ = Nathan − Thomas. Negative means Nathan is ahead/faster.
Race timeline
Computed- Nathan (N-DR) started at 8:41 AM.
- Thomas (Y-DR) started at 8:50 AM, 9:00 later.
- Actual running time: Thomas was 8:51 faster on foot than Nathan.
- Finish clock: Nathan crossed the line 0:09 ahead of Thomas — Nathan 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 | Nathan | Thomas | Δ |
|---|---|---|---|
| Start to Top of Stairs | 9:18 | 8:59 | +0:19 |
| Stairs to Windy Gap | 7:01 | 6:33 | +0:28 |
| Windy Gap to Muir Woods | 7:43 | 7:15 | +0:28 |
| Muir Woods to Cardiac | 32:43 | 28:48 | +3:55 |
| Cardiac to White Gate | 19:23 | 17:29 | +1:54 |
| White Gate to The Stile | 9:28 | 8:05 | +1:23 |
| The Stile to Finish | 2:29 | 2:05 | +0:24 |
Δ negative = Nathan ran the segment faster.