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
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
Michael (U-INV) started at 8:19 AM; Julia (Q-INV) started at 8:16 AM. That gave Julia a 3 minutes head start on Michael. On foot, Michael ran 1:11:15 and Julia ran 57:02 — Julia was 14:13 faster than Michael. Michael took official place 293rd (time-based 356th) 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 7:22 from Muir Woods to Cardiac.
Deltas
ComputedWave start
Julia R Maxwell Bailey (Q-INV) started 3 min earlier than Michael (U-INV).
- Overall place Δ
- +290
- Actual time Δ
- +14:13
- Section gap Δ
- ±0 (same section)
- Wave start Δ
- 3 min (Julia earlier)
- Finish clock Δ
- +17:13
- Section place Δ
- +18
Δ = Michael − Julia. Negative means Michael is ahead/faster.
Race timeline
Computed- Julia (Q-INV) started at 8:16 AM.
- Michael (U-INV) started at 8:19 AM, 3:00 later.
- Actual running time: Julia was 14:13 faster on foot than Michael.
- Finish clock: Julia crossed the line 17:13 ahead of Michael — Julia wins this head-to-head.
Δ (A − B): actual +14:13 · finish clock +17:13.
Position through the course
OfficialSegment-by-segment splits
Official| Segment | Michael | Julia | Δ |
|---|---|---|---|
| Start to Top of Stairs | 7:53 | 6:46 | +1:07 |
| Stairs to Windy Gap | 5:46 | 5:03 | +0:43 |
| Windy Gap to Muir Woods | 5:47 | 5:20 | +0:27 |
| Muir Woods to Cardiac | 27:48 | 20:26 | +7:22 |
| Cardiac to White Gate | 14:42 | 11:52 | +2:50 |
| White Gate to The Stile | 7:21 | 5:54 | +1:27 |
| The Stile to Finish | 1:58 | 1:41 | +0:17 |
Δ negative = Michael ran the segment faster.