Head-to-head
Pick two athletes to see how the race played out between them — by actual time, head start, and checkpoint.
Athlete A
OfficialMichael J Prindiville
#293 · 1:11:15 · M51 · Group U · INV
Wave start 8:19 AM (U-INV)
Athlete B
OfficialOtis Lyons
#297 · 1:05:26 · M25 · Group SCR · INV
Wave start 8:25 AM (SCR-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
Michael (U-INV) started at 8:19 AM; Otis (SCR-INV) started at 8:25 AM. That gave Michael a 6 minutes head start on Otis. On foot, Michael ran 1:11:15 and Otis ran 1:05:26 — Otis was 5:49 faster than Michael. Michael took official place 293rd (time-based 356th) and Otis took official place 297th (time-based 193rd). Michael's head start was enough to flip the official order even though Otis was faster on foot. Biggest swing: Otis gained 2:41 from Cardiac to White Gate.
Deltas
ComputedWave start
Michael J Prindiville (U-INV) started 6 min earlier than Otis (SCR-INV).
- Overall place Δ
- -4
- Actual time Δ
- +5:49
- Section gap Δ
- ±0 (same section)
- Wave start Δ
- 6 min (Michael earlier)
- Finish clock Δ
- -0:11
- Section place Δ
- +9
Δ = Michael − Otis. Negative means Michael is ahead/faster.
Race timeline
Computed- Michael (U-INV) started at 8:19 AM.
- Otis (SCR-INV) started at 8:25 AM, 6:00 later.
- Actual running time: Otis was 5:49 faster on foot than Michael.
- Finish clock: Michael crossed the line 0:11 ahead of Otis — Michael wins this head-to-head.
Δ (A − B): actual +5:49 · finish clock -0:11.
Position through the course
OfficialSegment-by-segment splits
Official| Segment | Michael | Otis | Δ |
|---|---|---|---|
| Start to Top of Stairs | 7:53 | 7:18 | +0:35 |
| Stairs to Windy Gap | 5:46 | 6:19 | -0:33 |
| Windy Gap to Muir Woods | 5:47 | 5:31 | +0:16 |
| Muir Woods to Cardiac | 27:48 | 25:33 | +2:15 |
| Cardiac to White Gate | 14:42 | 12:01 | +2:41 |
| White Gate to The Stile | 7:21 | 6:48 | +0:33 |
| The Stile to Finish | 1:58 | 1:56 | +0:02 |
Δ negative = Michael ran the segment faster.