Head-to-head
Pick two athletes to see how the race played out between them — by actual time, head start, and checkpoint.
Athlete A
OfficialKelby B Buckley
#122 · 58:53 · M23 · Group SCR · INV
Wave start 8:25 AM (SCR-INV)
Athlete B
OfficialDavid Hafferty
#127 · 1:00:58 · M36 · 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
Kelby (SCR-INV) started at 8:25 AM; David (Y-INV) started at 8:23 AM. That gave David a 2 minutes head start on Kelby. On foot, Kelby ran 58:53 and David ran 1:00:58 — Kelby was 2:05 faster than David. Kelby took official place 122nd (time-based 53rd) and David took official place 127th (time-based 77th). Kelby was faster on foot and finished ahead on the official clock too. Biggest swing: Kelby gained 0:34 from Cardiac to White Gate.
Deltas
ComputedWave start
David Hafferty (Y-INV) started 2 min earlier than Kelby (SCR-INV).
- Overall place Δ
- -5
- Actual time Δ
- -2:05
- Section gap Δ
- ±0 (same section)
- Wave start Δ
- 2 min (David earlier)
- Finish clock Δ
- -0:05
- Section place Δ
- -15
Δ = Kelby − David. Negative means Kelby is ahead/faster.
Race timeline
Computed- David (Y-INV) started at 8:23 AM.
- Kelby (SCR-INV) started at 8:25 AM, 2:00 later.
- Actual running time: Kelby was 2:05 faster on foot than David.
- Finish clock: Kelby crossed the line 0:05 ahead of David — Kelby wins this head-to-head.
Δ (A − B): actual -2:05 · finish clock -0:05.
Position through the course
OfficialSegment-by-segment splits
Official| Segment | Kelby | David | Δ |
|---|---|---|---|
| Start to Top of Stairs | 6:38 | 7:05 | -0:27 |
| Stairs to Windy Gap | 5:30 | 5:21 | +0:09 |
| Windy Gap to Muir Woods | 4:43 | 5:08 | -0:25 |
| Muir Woods to Cardiac | 22:53 | 23:08 | -0:15 |
| Cardiac to White Gate | 11:39 | 12:13 | -0:34 |
| White Gate to The Stile | 5:57 | 6:21 | -0:24 |
| The Stile to Finish | 1:33 | 1:42 | -0:09 |
Δ negative = Kelby ran the segment faster.