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
OfficialTyler Kolligian
#366 · 1:09:22 · M34 · Group Y · INV
Wave start 8:23 AM (Y-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; Tyler (Y-INV) started at 8:23 AM. That gave Phelps a 7 minutes head start on Tyler. On foot, Phelps ran 1:16:20 and Tyler ran 1:09:22 — Tyler was 6:58 faster than Phelps. Phelps took official place 364th (time-based 531st) and Tyler took official place 366th (time-based 306th). Phelps's head start was enough to flip the official order even though Tyler was faster on foot. Biggest swing: Tyler gained 2:58 from Muir Woods to Cardiac.
Deltas
ComputedWave start
Phelps Wood (Q-INV) started 7 min earlier than Tyler (Y-INV).
- Overall place Δ
- -2
- Actual time Δ
- +6:58
- Section gap Δ
- ±0 (same section)
- Wave start Δ
- 7 min (Phelps earlier)
- Finish clock Δ
- -0:02
- Section place Δ
- -21
Δ = Phelps − Tyler. Negative means Phelps is ahead/faster.
Race timeline
Computed- Phelps (Q-INV) started at 8:16 AM.
- Tyler (Y-INV) started at 8:23 AM, 7:00 later.
- Actual running time: Tyler was 6:58 faster on foot than Phelps.
- Finish clock: Phelps crossed the line 0:02 ahead of Tyler — Phelps wins this head-to-head.
Δ (A − B): actual +6:58 · finish clock -0:02.
Position through the course
OfficialSegment-by-segment splits
Official| Segment | Phelps | Tyler | Δ |
|---|---|---|---|
| Start to Top of Stairs | 8:55 | 7:57 | +0:58 |
| Stairs to Windy Gap | 6:43 | 5:49 | +0:54 |
| Windy Gap to Muir Woods | 6:11 | 5:21 | +0:50 |
| Muir Woods to Cardiac | 29:31 | 26:33 | +2:58 |
| Cardiac to White Gate | 15:19 | 14:30 | +0:49 |
| White Gate to The Stile | 7:31 | 7:14 | +0:17 |
| The Stile to Finish | 2:10 | 1:58 | +0:12 |
Δ negative = Phelps ran the segment faster.