Head-to-head
Pick two athletes to see how the race played out between them — by actual time, head start, and checkpoint.
Athlete A
OfficialPhelps Wood
#364 · 1:16:20 · M57 · Group Q · INV
Wave start 8:16 AM (Q-INV)
Athlete B
OfficialDavid M Strand
#362 · 1:29:14 · M71 · Group B · INV
Wave start 8:03 AM (B-INV)
Comparison report
Download the full report as a PDF, share the file, or send a link to this view.
The PDF includes the interpretation, deltas, race timeline, position-through-the-course chart, and segment-by-segment splits shown below.
Interpretation
Phelps (Q-INV) started at 8:16 AM; David (B-INV) started at 8:03 AM. That gave David a 13 minutes head start on Phelps. On foot, Phelps ran 1:16:20 and David ran 1:29:14 — Phelps was 12:54 faster than David. Phelps took official place 364th (time-based 531st) and David took official place 362nd (time-based 890th). David's head start was enough to flip the official order even though Phelps was faster on foot. Biggest swing: Phelps gained 6:18 from Muir Woods to Cardiac.
Deltas
ComputedWave start
David M Strand (B-INV) started 13 min earlier than Phelps (Q-INV).
- Overall place Δ
- +2
- Actual time Δ
- -12:54
- Section gap Δ
- ±0 (same section)
- Wave start Δ
- 13 min (David earlier)
- Finish clock Δ
- +0:06
- Section place Δ
- +39
Δ = Phelps − David. Negative means Phelps is ahead/faster.
Race timeline
Computed- David (B-INV) started at 8:03 AM.
- Phelps (Q-INV) started at 8:16 AM, 13:00 later.
- Actual running time: Phelps was 12:54 faster on foot than David.
- Finish clock: David crossed the line 0:06 ahead of Phelps — David wins this head-to-head.
Δ (A − B): actual -12:54 · finish clock +0:06.
Position through the course
OfficialSegment-by-segment splits
Official| Segment | Phelps | David | Δ |
|---|---|---|---|
| Start to Top of Stairs | 8:55 | 9:54 | -0:59 |
| Stairs to Windy Gap | 6:43 | 7:48 | -1:05 |
| Windy Gap to Muir Woods | 6:11 | 6:47 | -0:36 |
| Muir Woods to Cardiac | 29:31 | 35:49 | -6:18 |
| Cardiac to White Gate | 15:19 | 17:12 | -1:53 |
| White Gate to The Stile | 7:31 | 9:09 | -1:38 |
| The Stile to Finish | 2:10 | 2:35 | -0:25 |
Δ negative = Phelps ran the segment faster.