Head-to-head
Pick two athletes to see how the race played out between them — by actual time, head start, and checkpoint.
Athlete A
OfficialMarshall Roslyn
#832 · 1:21:58 · M46 · Group W · DR
Wave start 8:48 AM (W-DR)
Athlete B
OfficialDavid Temple
#833 · 1:20:58 · M43 · Group X · DR
Wave start 8:49 AM (X-DR)
Interpretation
Marshall (W-DR) started at 8:48 AM; David (X-DR) started at 8:49 AM. That gave Marshall a 1 minute head start on David. On foot, Marshall ran 1:21:58 and David ran 1:20:58 — David was 1:00 faster than Marshall. Marshall took official place 832nd (time-based 706th) and David took official place 833rd (time-based 675th). Marshall's head start was enough to flip the official order even though David was faster on foot. Biggest swing: David gained 1:29 from Muir Woods to Cardiac.
Deltas
ComputedWave start
Marshall Roslyn (W-DR) started 1 min earlier than David (X-DR).
- Overall place Δ
- -1
- Actual time Δ
- +1:00
- Section gap Δ
- ±0 (same section)
- Wave start Δ
- 1 min (Marshall earlier)
- Finish clock Δ
- ±0:00
- Section place Δ
- +1
Δ = Marshall − David. Negative means Marshall is ahead/faster.
Race timeline
Computed- Marshall (W-DR) started at 8:48 AM.
- David (X-DR) started at 8:49 AM, 1:00 later.
- Actual running time: David was 1:00 faster on foot than Marshall.
- They crossed the finish line at the same clock time.
Δ (A − B): actual +1:00 · finish clock ±0:00.
Position through the course
OfficialSegment-by-segment splits
Official| Segment | Marshall | David | Δ |
|---|---|---|---|
| Start to Top of Stairs | 8:52 | 9:09 | -0:17 |
| Stairs to Windy Gap | 7:23 | 6:56 | +0:27 |
| Windy Gap to Muir Woods | 6:56 | 6:49 | +0:07 |
| Muir Woods to Cardiac | 32:33 | 31:04 | +1:29 |
| Cardiac to White Gate | 16:27 | 16:37 | -0:10 |
| White Gate to The Stile | 7:40 | 8:17 | -0:37 |
| The Stile to Finish | 2:07 | 2:06 | +0:01 |
Δ negative = Marshall ran the segment faster.