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
OfficialBrooks A Rahmer
#288 · 1:07:08 · M40 · Group Y · INV
Wave start 8:23 AM (Y-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; Brooks (Y-INV) started at 8:23 AM. That gave Michael a 4 minutes head start on Brooks. On foot, Michael ran 1:11:15 and Brooks ran 1:07:08 — Brooks was 4:07 faster than Michael. Michael took official place 293rd (time-based 356th) and Brooks took official place 288th (time-based 237th). Brooks was faster on foot and finished ahead on the official clock too. Biggest swing: Brooks gained 2:40 from Muir Woods to Cardiac.
Deltas
ComputedWave start
Michael J Prindiville (U-INV) started 4 min earlier than Brooks (Y-INV).
- Overall place Δ
- +5
- Actual time Δ
- +4:07
- Section gap Δ
- ±0 (same section)
- Wave start Δ
- 4 min (Michael earlier)
- Finish clock Δ
- +0:07
- Section place Δ
- -36
Δ = Michael − Brooks. Negative means Michael is ahead/faster.
Race timeline
Computed- Michael (U-INV) started at 8:19 AM.
- Brooks (Y-INV) started at 8:23 AM, 4:00 later.
- Actual running time: Brooks was 4:07 faster on foot than Michael.
- Finish clock: Brooks crossed the line 0:07 ahead of Michael — Brooks wins this head-to-head.
Δ (A − B): actual +4:07 · finish clock +0:07.
Position through the course
OfficialSegment-by-segment splits
Official| Segment | Michael | Brooks | Δ |
|---|---|---|---|
| Start to Top of Stairs | 7:53 | 8:19 | -0:26 |
| Stairs to Windy Gap | 5:46 | 5:36 | +0:10 |
| Windy Gap to Muir Woods | 5:47 | 5:32 | +0:15 |
| Muir Woods to Cardiac | 27:48 | 25:08 | +2:40 |
| Cardiac to White Gate | 14:42 | 13:34 | +1:08 |
| White Gate to The Stile | 7:21 | 7:02 | +0:19 |
| The Stile to Finish | 1:58 | 1:57 | +0:01 |
Δ negative = Michael ran the segment faster.