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
OfficialJan K Zeman
#298 · 1:10:26 · M49 · Group V · INV
Wave start 8:20 AM (V-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; Jan (V-INV) started at 8:20 AM. That gave Michael a 1 minute head start on Jan. On foot, Michael ran 1:11:15 and Jan ran 1:10:26 — Jan was 0:49 faster than Michael. Michael took official place 293rd (time-based 356th) and Jan took official place 298th (time-based 339th). Michael's head start was enough to flip the official order even though Jan was faster on foot. Biggest swing: Jan gained 2:12 from Muir Woods to Cardiac.
Deltas
ComputedWave start
Michael J Prindiville (U-INV) started 1 min earlier than Jan (V-INV).
- Overall place Δ
- -5
- Actual time Δ
- +0:49
- Section gap Δ
- ±0 (same section)
- Wave start Δ
- 1 min (Michael earlier)
- Finish clock Δ
- -0:11
- Section place Δ
- +2
Δ = Michael − Jan. Negative means Michael is ahead/faster.
Race timeline
Computed- Michael (U-INV) started at 8:19 AM.
- Jan (V-INV) started at 8:20 AM, 1:00 later.
- Actual running time: Jan was 0:49 faster on foot than Michael.
- Finish clock: Michael crossed the line 0:11 ahead of Jan — Michael wins this head-to-head.
Δ (A − B): actual +0:49 · finish clock -0:11.
Position through the course
OfficialSegment-by-segment splits
Official| Segment | Michael | Jan | Δ |
|---|---|---|---|
| Start to Top of Stairs | 7:53 | 7:44 | +0:09 |
| Stairs to Windy Gap | 5:46 | 6:27 | -0:41 |
| Windy Gap to Muir Woods | 5:47 | 6:09 | -0:22 |
| Muir Woods to Cardiac | 27:48 | 25:36 | +2:12 |
| Cardiac to White Gate | 14:42 | 15:26 | -0:44 |
| White Gate to The Stile | 7:21 | 7:09 | +0:12 |
| The Stile to Finish | 1:58 | 1:55 | +0:03 |
Δ negative = Michael ran the segment faster.