Head-to-head
Pick two athletes to see how the race played out between them — by actual time, head start, and checkpoint.
Athlete A
OfficialDavid Weinfeld
#716 · 1:22:46 · M59 · Group P · DR
Wave start 8:42 AM (P-DR)
Athlete B
OfficialRobert O Spinosa
#721 · 1:18:56 · M13 · Group U · DR
Wave start 8:46 AM (U-DR)
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
David (P-DR) started at 8:42 AM; Robert (U-DR) started at 8:46 AM. That gave David a 4 minutes head start on Robert. On foot, David ran 1:22:46 and Robert ran 1:18:56 — Robert was 3:50 faster than David. David took official place 716th (time-based 733rd) and Robert took official place 721st (time-based 612th). David's head start was enough to flip the official order even though Robert was faster on foot. Biggest swing: Robert gained 3:25 from Muir Woods to Cardiac.
Deltas
ComputedWave start
David Weinfeld (P-DR) started 4 min earlier than Robert (U-DR).
- Overall place Δ
- -5
- Actual time Δ
- +3:50
- Section gap Δ
- ±0 (same section)
- Wave start Δ
- 4 min (David earlier)
- Finish clock Δ
- -0:10
- Section place Δ
- +4
Δ = David − Robert. Negative means David is ahead/faster.
Race timeline
Computed- David (P-DR) started at 8:42 AM.
- Robert (U-DR) started at 8:46 AM, 4:00 later.
- Actual running time: Robert was 3:50 faster on foot than David.
- Finish clock: David crossed the line 0:10 ahead of Robert — David wins this head-to-head.
Δ (A − B): actual +3:50 · finish clock -0:10.
Position through the course
OfficialSegment-by-segment splits
Official| Segment | David | Robert | Δ |
|---|---|---|---|
| Start to Top of Stairs | 9:11 | 8:42 | +0:29 |
| Stairs to Windy Gap | 7:19 | 6:45 | +0:34 |
| Windy Gap to Muir Woods | 6:34 | 6:44 | -0:10 |
| Muir Woods to Cardiac | 32:26 | 29:01 | +3:25 |
| Cardiac to White Gate | 16:20 | 17:02 | -0:42 |
| White Gate to The Stile | 8:19 | 8:36 | -0:17 |
| The Stile to Finish | 2:37 | 2:06 | +0:31 |
Δ negative = David ran the segment faster.