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
OfficialJohn C Young
#290 · 1:09:12 · M47 · Group W · INV
Wave start 8:21 AM (W-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; John (W-INV) started at 8:21 AM. That gave Michael a 2 minutes head start on John. On foot, Michael ran 1:11:15 and John ran 1:09:12 — John was 2:03 faster than Michael. Michael took official place 293rd (time-based 356th) and John took official place 290th (time-based 299th). John was faster on foot and finished ahead on the official clock too. Biggest swing: John gained 1:19 from Muir Woods to Cardiac.
Deltas
ComputedWave start
Michael J Prindiville (U-INV) started 2 min earlier than John (W-INV).
- Overall place Δ
- +3
- Actual time Δ
- +2:03
- Section gap Δ
- ±0 (same section)
- Wave start Δ
- 2 min (Michael earlier)
- Finish clock Δ
- +0:03
- Section place Δ
- +2
Δ = Michael − John. Negative means Michael is ahead/faster.
Race timeline
Computed- Michael (U-INV) started at 8:19 AM.
- John (W-INV) started at 8:21 AM, 2:00 later.
- Actual running time: John was 2:03 faster on foot than Michael.
- Finish clock: John crossed the line 0:03 ahead of Michael — John wins this head-to-head.
Δ (A − B): actual +2:03 · finish clock +0:03.
Position through the course
OfficialSegment-by-segment splits
Official| Segment | Michael | John | Δ |
|---|---|---|---|
| Start to Top of Stairs | 7:53 | 8:13 | -0:20 |
| Stairs to Windy Gap | 5:46 | 5:56 | -0:10 |
| Windy Gap to Muir Woods | 5:47 | 5:34 | +0:13 |
| Muir Woods to Cardiac | 27:48 | 26:29 | +1:19 |
| Cardiac to White Gate | 14:42 | 14:02 | +0:40 |
| White Gate to The Stile | 7:21 | 7:01 | +0:20 |
| The Stile to Finish | 1:58 | 1:57 | +0:01 |
Δ negative = Michael ran the segment faster.