Head-to-head
Pick two athletes to see how the race played out between them — by actual time, head start, and checkpoint.
Athlete A
OfficialAaron Kaplan
#398 · 1:09:16 · M29 · Group Z · INV
Wave start 8:24 AM (Z-INV)
Athlete B
OfficialDavid T Lam
#397 · 1:10:15 · M41 · 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
Aaron (Z-INV) started at 8:24 AM; David (Y-INV) started at 8:23 AM. That gave David a 1 minute head start on Aaron. On foot, Aaron ran 1:09:16 and David ran 1:10:15 — Aaron was 0:59 faster than David. Aaron took official place 398th (time-based 300th) and David took official place 397th (time-based 334th). David's head start was enough to flip the official order even though Aaron was faster on foot. Biggest swing: Aaron gained 0:44 from Muir Woods to Cardiac.
Deltas
ComputedWave start
David T Lam (Y-INV) started 1 min earlier than Aaron (Z-INV).
- Overall place Δ
- +1
- Actual time Δ
- -0:59
- Section gap Δ
- ±0 (same section)
- Wave start Δ
- 1 min (David earlier)
- Finish clock Δ
- +0:01
- Section place Δ
- -28
Δ = Aaron − David. Negative means Aaron is ahead/faster.
Race timeline
Computed- David (Y-INV) started at 8:23 AM.
- Aaron (Z-INV) started at 8:24 AM, 1:00 later.
- Actual running time: Aaron was 0:59 faster on foot than David.
- Finish clock: David crossed the line 0:01 ahead of Aaron — David wins this head-to-head.
Δ (A − B): actual -0:59 · finish clock +0:01.
Position through the course
OfficialSegment-by-segment splits
Official| Segment | Aaron | David | Δ |
|---|---|---|---|
| Start to Top of Stairs | 8:04 | 8:16 | -0:12 |
| Stairs to Windy Gap | 6:05 | 6:05 | ±0:00 |
| Windy Gap to Muir Woods | 5:57 | 5:36 | +0:21 |
| Muir Woods to Cardiac | 25:42 | 26:26 | -0:44 |
| Cardiac to White Gate | 14:25 | 14:53 | -0:28 |
| White Gate to The Stile | 7:05 | 7:07 | -0:02 |
| The Stile to Finish | 1:58 | 1:52 | +0:06 |
Δ negative = Aaron ran the segment faster.