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
OfficialRichard L Park
#629 · 1:31:25 · M73 · Group AA · DR
Wave start 8:28 AM (AA-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; Richard (AA-DR) started at 8:28 AM. That gave Richard a 12 minutes head start on Amanda. On foot, Amanda ran 1:19:40 and Richard ran 1:31:25 — Amanda was 11:45 faster than Richard. Amanda took official place 631st (time-based 641st) and Richard took official place 629th (time-based 933rd). Richard's head start was enough to flip the official order even though Amanda was faster on foot. Biggest swing: Amanda gained 5:33 from Muir Woods to Cardiac.
Deltas
ComputedWave start
Richard L Park (AA-DR) started 12 min earlier than Amanda (M-DR).
- Overall place Δ
- +2
- Actual time Δ
- -11:45
- Section gap Δ
- ±0 (same section)
- Wave start Δ
- 12 min (Richard earlier)
- Finish clock Δ
- +0:15
- Section place Δ
- +4
Δ = Amanda − Richard. Negative means Amanda is ahead/faster.
Race timeline
Computed- Richard (AA-DR) started at 8:28 AM.
- Amanda (M-DR) started at 8:40 AM, 12:00 later.
- Actual running time: Amanda was 11:45 faster on foot than Richard.
- Finish clock: Richard crossed the line 0:15 ahead of Amanda — Richard 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 | Amanda | Richard | Δ |
|---|---|---|---|
| Start to Top of Stairs | 9:12 | 11:44 | -2:32 |
| Stairs to Windy Gap | 6:45 | 8:40 | -1:55 |
| Windy Gap to Muir Woods | 7:40 | 7:37 | +0:03 |
| Muir Woods to Cardiac | 28:06 | 33:39 | -5:33 |
| Cardiac to White Gate | 17:22 | 18:43 | -1:21 |
| White Gate to The Stile | 8:22 | 8:40 | -0:18 |
| The Stile to Finish | 2:13 | 2:22 | -0:09 |
Δ negative = Amanda ran the segment faster.