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
OfficialEdward R Owens
#2 · 48:29 · M32 · Group Z · INV
Wave start 8:24 AM (Z-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; Edward (Z-INV) started at 8:24 AM. That gave Phelps a 8 minutes head start on Edward. On foot, Phelps ran 1:16:20 and Edward ran 48:29 — Edward was 27:51 faster than Phelps. Phelps took official place 364th (time-based 531st) and Edward took official place 2nd (time-based 1st). Edward was faster on foot and finished ahead on the official clock too. Biggest swing: Edward gained 11:39 from Muir Woods to Cardiac.
Deltas
ComputedWave start
Phelps Wood (Q-INV) started 8 min earlier than Edward (Z-INV).
- Overall place Δ
- +362
- Actual time Δ
- +27:51
- Section gap Δ
- ±0 (same section)
- Wave start Δ
- 8 min (Phelps earlier)
- Finish clock Δ
- +19:51
- Section place Δ
- +42
Δ = Phelps − Edward. Negative means Phelps is ahead/faster.
Race timeline
Computed- Phelps (Q-INV) started at 8:16 AM.
- Edward (Z-INV) started at 8:24 AM, 8:00 later.
- Actual running time: Edward was 27:51 faster on foot than Phelps.
- Finish clock: Edward crossed the line 19:51 ahead of Phelps — Edward wins this head-to-head.
Δ (A − B): actual +27:51 · finish clock +19:51.
Position through the course
OfficialSegment-by-segment splits
Official| Segment | Phelps | Edward | Δ |
|---|---|---|---|
| Start to Top of Stairs | 8:55 | 5:48 | +3:07 |
| Stairs to Windy Gap | 6:43 | 4:17 | +2:26 |
| Windy Gap to Muir Woods | 6:11 | 4:16 | +1:55 |
| Muir Woods to Cardiac | 29:31 | 17:52 | +11:39 |
| Cardiac to White Gate | 15:19 | 9:40 | +5:39 |
| White Gate to The Stile | 7:31 | 5:03 | +2:28 |
| The Stile to Finish | 2:10 | 1:33 | +0:37 |
Δ negative = Phelps ran the segment faster.