Head-to-head
Pick two athletes to see how the race played out between them — by actual time, head start, and checkpoint.
Athlete A
OfficialGary C Byrd
#623 · 1:19:46 · M62 · Group L · DR
Wave start 8:39 AM (L-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
Gary (L-DR) started at 8:39 AM; Marshall (W-DR) started at 8:48 AM. That gave Gary a 9 minutes head start on Marshall. On foot, Gary ran 1:19:46 and Marshall ran 1:10:38 — Marshall was 9:08 faster than Gary. Gary took official place 623rd (time-based 644th) and Marshall took official place 619th (time-based 343rd). Marshall was faster on foot and finished ahead on the official clock too. Biggest swing: Marshall gained 2:03 from Cardiac to White Gate.
Deltas
ComputedWave start
Gary C Byrd (L-DR) started 9 min earlier than Marshall (W-DR).
- Overall place Δ
- +4
- Actual time Δ
- +9:08
- Section gap Δ
- ±0 (same section)
- Wave start Δ
- 9 min (Gary earlier)
- Finish clock Δ
- +0:08
- Section place Δ
- -7
Δ = Gary − Marshall. Negative means Gary is ahead/faster.
Race timeline
Computed- Gary (L-DR) started at 8:39 AM.
- Marshall (W-DR) started at 8:48 AM, 9:00 later.
- Actual running time: Marshall was 9:08 faster on foot than Gary.
- Finish clock: Marshall crossed the line 0:08 ahead of Gary — Marshall wins this head-to-head.
Δ (A − B): actual +9:08 · finish clock +0:08.
Position through the course
OfficialSegment-by-segment splits
Official| Segment | Gary | Marshall | Δ |
|---|---|---|---|
| Start to Top of Stairs | 10:17 | 7:50 | +2:27 |
| Stairs to Windy Gap | 6:58 | 6:27 | +0:31 |
| Windy Gap to Muir Woods | 6:54 | 6:01 | +0:53 |
| Muir Woods to Cardiac | 29:16 | 27:35 | +1:41 |
| Cardiac to White Gate | 16:10 | 14:07 | +2:03 |
| White Gate to The Stile | 7:55 | 6:53 | +1:02 |
| The Stile to Finish | 2:16 | 1:45 | +0:31 |
Δ negative = Gary ran the segment faster.