Head-to-head
Pick two athletes to see how the race played out between them — by actual time, head start, and checkpoint.
Athlete A
OfficialGeorge W Clothier
#616 · 1:22:23 · M66 · Group H · DR
Wave start 8:36 AM (H-DR)
Athlete B
OfficialMarshall Allen boyd
#619 · 1:10:38 · M46 · Group W · DR
Wave start 8:48 AM (W-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
George (H-DR) started at 8:36 AM; Marshall (W-DR) started at 8:48 AM. That gave George a 12 minutes head start on Marshall. On foot, George ran 1:22:23 and Marshall ran 1:10:38 — Marshall was 11:45 faster than George. George took official place 616th (time-based 716th) and Marshall took official place 619th (time-based 343rd). George's head start was enough to flip the official order even though Marshall was faster on foot. Biggest swing: Marshall gained 4:42 from Muir Woods to Cardiac.
Deltas
ComputedWave start
George W Clothier (H-DR) started 12 min earlier than Marshall (W-DR).
- Overall place Δ
- -3
- Actual time Δ
- +11:45
- Section gap Δ
- ±0 (same section)
- Wave start Δ
- 12 min (George earlier)
- Finish clock Δ
- -0:15
- Section place Δ
- -7
Δ = George − Marshall. Negative means George is ahead/faster.
Race timeline
Computed- George (H-DR) started at 8:36 AM.
- Marshall (W-DR) started at 8:48 AM, 12:00 later.
- Actual running time: Marshall was 11:45 faster on foot than George.
- Finish clock: George crossed the line 0:15 ahead of Marshall — George wins this head-to-head.
Δ (A − B): actual +11:45 · finish clock -0:15.
Position through the course
OfficialSegment-by-segment splits
Official| Segment | George | Marshall | Δ |
|---|---|---|---|
| Start to Top of Stairs | 9:47 | 7:50 | +1:57 |
| Stairs to Windy Gap | 7:32 | 6:27 | +1:05 |
| Windy Gap to Muir Woods | 6:10 | 6:01 | +0:09 |
| Muir Woods to Cardiac | 32:17 | 27:35 | +4:42 |
| Cardiac to White Gate | 16:15 | 14:07 | +2:08 |
| White Gate to The Stile | 8:03 | 6:53 | +1:10 |
| The Stile to Finish | 2:19 | 1:45 | +0:34 |
Δ negative = George ran the segment faster.