Head-to-head
Pick two athletes to see how the race played out between them — by actual time, head start, and checkpoint.
Athlete A
OfficialAmanda Allen Boyd
#631 · 1:19:40 · F48 · Group M · DR
Wave start 8:40 AM (M-DR)
Athlete B
OfficialJeff Marks
#628 · 1:13:15 · M53 · Group U · DR
Wave start 8:46 AM (U-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
Amanda (M-DR) started at 8:40 AM; Jeff (U-DR) started at 8:46 AM. That gave Amanda a 6 minutes head start on Jeff. On foot, Amanda ran 1:19:40 and Jeff ran 1:13:15 — Jeff was 6:25 faster than Amanda. Amanda took official place 631st (time-based 641st) and Jeff took official place 628th (time-based 430th). Jeff was faster on foot and finished ahead on the official clock too. Biggest swing: Jeff gained 2:53 from Cardiac to White Gate.
Deltas
ComputedWave start
Amanda Allen Boyd (M-DR) started 6 min earlier than Jeff (U-DR).
- Overall place Δ
- +3
- Actual time Δ
- +6:25
- Section gap Δ
- ±0 (same section)
- Wave start Δ
- 6 min (Amanda earlier)
- Finish clock Δ
- +0:25
- Section place Δ
- -1
Δ = Amanda − Jeff. Negative means Amanda is ahead/faster.
Race timeline
Computed- Amanda (M-DR) started at 8:40 AM.
- Jeff (U-DR) started at 8:46 AM, 6:00 later.
- Actual running time: Jeff was 6:25 faster on foot than Amanda.
- Finish clock: Jeff crossed the line 0:25 ahead of Amanda — Jeff wins this head-to-head.
Δ (A − B): actual +6:25 · finish clock +0:25.
Position through the course
OfficialSegment-by-segment splits
Official| Segment | Amanda | Jeff | Δ |
|---|---|---|---|
| Start to Top of Stairs | 9:12 | 8:34 | +0:38 |
| Stairs to Windy Gap | 6:45 | 6:24 | +0:21 |
| Windy Gap to Muir Woods | 7:40 | 6:13 | +1:27 |
| Muir Woods to Cardiac | 28:06 | 28:16 | -0:10 |
| Cardiac to White Gate | 17:22 | 14:29 | +2:53 |
| White Gate to The Stile | 8:22 | 7:15 | +1:07 |
| The Stile to Finish | 2:13 | 2:04 | +0:09 |
Δ negative = Amanda ran the segment faster.