Head-to-head
Pick two athletes to see how the race played out between them — by actual time, head start, and checkpoint.
Athlete A
OfficialCheri Nielsen
#511 · 1:31:27 · F52 · Group K · INV
Wave start 8:11 AM (K-INV)
Athlete B
OfficialDavid Leipsic
#516 · 1:31:14 · M61 · Group M · INV
Wave start 8:13 AM (M-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
Cheri (K-INV) started at 8:11 AM; David (M-INV) started at 8:13 AM. That gave Cheri a 2 minutes head start on David. On foot, Cheri ran 1:31:27 and David ran 1:31:14 — David was 0:13 faster than Cheri. Cheri took official place 511th (time-based 935th) and David took official place 516th (time-based 931st). Cheri's head start was enough to flip the official order even though David was faster on foot. Biggest swing: Cheri gained 1:14 from Windy Gap to Muir Woods.
Deltas
ComputedWave start
Cheri Nielsen (K-INV) started 2 min earlier than David (M-INV).
- Overall place Δ
- -5
- Actual time Δ
- +0:13
- Section gap Δ
- ±0 (same section)
- Wave start Δ
- 2 min (Cheri earlier)
- Finish clock Δ
- -1:47
- Section place Δ
- -9
Δ = Cheri − David. Negative means Cheri is ahead/faster.
Race timeline
Computed- Cheri (K-INV) started at 8:11 AM.
- David (M-INV) started at 8:13 AM, 2:00 later.
- Actual running time: David was 0:13 faster on foot than Cheri.
- Finish clock: Cheri crossed the line 1:47 ahead of David — Cheri wins this head-to-head.
Δ (A − B): actual +0:13 · finish clock -1:47.
Position through the course
OfficialSegment-by-segment splits
Official| Segment | Cheri | David | Δ |
|---|---|---|---|
| Start to Top of Stairs | 11:33 | 11:07 | +0:26 |
| Stairs to Windy Gap | 7:57 | 7:33 | +0:24 |
| Windy Gap to Muir Woods | 7:32 | 8:46 | -1:14 |
| Muir Woods to Cardiac | 33:57 | 33:24 | +0:33 |
| Cardiac to White Gate | 18:41 | 18:20 | +0:21 |
| White Gate to The Stile | 8:54 | 9:23 | -0:29 |
| The Stile to Finish | 2:53 | 2:41 | +0:12 |
Δ negative = Cheri ran the segment faster.