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
OfficialJulia R Maxwell Bailey
#3 · 57:02 · F30 · Group Q · INV
Wave start 8:16 AM (Q-INV)
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
Phelps (Q-INV) started at 8:16 AM; Julia (Q-INV) started at 8:16 AM. Both left the line at the same moment. On foot, Phelps ran 1:16:20 and Julia ran 57:02 — Julia was 19:18 faster than Phelps. Phelps took official place 364th (time-based 531st) and Julia took official place 3rd (time-based 32nd). Julia was faster on foot and finished ahead on the official clock too. Biggest swing: Julia gained 9:05 from Muir Woods to Cardiac.
Deltas
ComputedWave start
Both started in the same wave.
- Overall place Δ
- +361
- Actual time Δ
- +19:18
- Section gap Δ
- ±0 (same section)
- Wave start Δ
- ±0 min
- Finish clock Δ
- +19:18
- Section place Δ
- +42
Δ = Phelps − Julia. Negative means Phelps is ahead/faster.
Race timeline
Computed- Phelps (Q-INV) started at 8:16 AM.
- Julia (Q-INV) also started at 8:16 AM.
- Actual running time: Julia was 19:18 faster on foot than Phelps.
- Finish clock: Julia crossed the line 19:18 ahead of Phelps — Julia wins this head-to-head.
Δ (A − B): actual +19:18 · finish clock +19:18.
Position through the course
OfficialSegment-by-segment splits
Official| Segment | Phelps | Julia | Δ |
|---|---|---|---|
| Start to Top of Stairs | 8:55 | 6:46 | +2:09 |
| Stairs to Windy Gap | 6:43 | 5:03 | +1:40 |
| Windy Gap to Muir Woods | 6:11 | 5:20 | +0:51 |
| Muir Woods to Cardiac | 29:31 | 20:26 | +9:05 |
| Cardiac to White Gate | 15:19 | 11:52 | +3:27 |
| White Gate to The Stile | 7:31 | 5:54 | +1:37 |
| The Stile to Finish | 2:10 | 1:41 | +0:29 |
Δ negative = Phelps ran the segment faster.