Head-to-head
Pick two athletes to see how the race played out between them — by actual time, head start, and checkpoint.
Athlete A
OfficialMark Davis
#615 · 1:07:23 · M32 · Group Z · DR
Wave start 8:51 AM (Z-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
Mark (Z-DR) started at 8:51 AM; Marshall (W-DR) started at 8:48 AM. That gave Marshall a 3 minutes head start on Mark. On foot, Mark ran 1:07:23 and Marshall ran 1:10:38 — Mark was 3:15 faster than Marshall. Mark took official place 615th (time-based 245th) and Marshall took official place 619th (time-based 343rd). Mark was faster on foot and finished ahead on the official clock too. Biggest swing: Mark gained 2:06 from Muir Woods to Cardiac.
Deltas
ComputedWave start
Marshall Allen boyd (W-DR) started 3 min earlier than Mark (Z-DR).
- Overall place Δ
- -4
- Actual time Δ
- -3:15
- Section gap Δ
- ±0 (same section)
- Wave start Δ
- 3 min (Marshall earlier)
- Finish clock Δ
- -0:15
- Section place Δ
- +2
Δ = Mark − Marshall. Negative means Mark is ahead/faster.
Race timeline
Computed- Marshall (W-DR) started at 8:48 AM.
- Mark (Z-DR) started at 8:51 AM, 3:00 later.
- Actual running time: Mark was 3:15 faster on foot than Marshall.
- Finish clock: Mark crossed the line 0:15 ahead of Marshall — Mark wins this head-to-head.
Δ (A − B): actual -3:15 · finish clock -0:15.
Position through the course
OfficialSegment-by-segment splits
Official| Segment | Mark | Marshall | Δ |
|---|---|---|---|
| Start to Top of Stairs | 8:08 | 7:50 | +0:18 |
| Stairs to Windy Gap | 5:54 | 6:27 | -0:33 |
| Windy Gap to Muir Woods | 5:42 | 6:01 | -0:19 |
| Muir Woods to Cardiac | 25:29 | 27:35 | -2:06 |
| Cardiac to White Gate | 13:36 | 14:07 | -0:31 |
| White Gate to The Stile | 6:44 | 6:53 | -0:09 |
| The Stile to Finish | 1:50 | 1:45 | +0:05 |
Δ negative = Mark ran the segment faster.