Head-to-head
Pick two athletes to see how the race played out between them — by actual time, head start, and checkpoint.
Athlete A
OfficialAlex Katz
#316 · 1:06:59 · M29 · Group Z · INV
Wave start 8:24 AM (Z-INV)
Athlete B
OfficialSandra M Holbrook James
#311 · 1:23:53 · F58 · Group F · INV
Wave start 8:07 AM (F-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
Alex (Z-INV) started at 8:24 AM; Sandra (F-INV) started at 8:07 AM. That gave Sandra a 17 minutes head start on Alex. On foot, Alex ran 1:06:59 and Sandra ran 1:23:53 — Alex was 16:54 faster than Sandra. Alex took official place 316th (time-based 231st) and Sandra took official place 311th (time-based 763rd). Sandra's head start was enough to flip the official order even though Alex was faster on foot. Biggest swing: Alex gained 4:46 from Cardiac to White Gate.
Deltas
ComputedWave start
Sandra M Holbrook James (F-INV) started 17 min earlier than Alex (Z-INV).
- Overall place Δ
- +5
- Actual time Δ
- -16:54
- Section gap Δ
- ±0 (same section)
- Wave start Δ
- 17 min (Sandra earlier)
- Finish clock Δ
- +0:06
- Section place Δ
- +32
Δ = Alex − Sandra. Negative means Alex is ahead/faster.
Race timeline
Computed- Sandra (F-INV) started at 8:07 AM.
- Alex (Z-INV) started at 8:24 AM, 17:00 later.
- Actual running time: Alex was 16:54 faster on foot than Sandra.
- Finish clock: Sandra crossed the line 0:06 ahead of Alex — Sandra wins this head-to-head.
Δ (A − B): actual -16:54 · finish clock +0:06.
Position through the course
OfficialSegment-by-segment splits
Official| Segment | Alex | Sandra | Δ |
|---|---|---|---|
| Start to Top of Stairs | 7:53 | 10:04 | -2:11 |
| Stairs to Windy Gap | 6:08 | 7:16 | -1:08 |
| Windy Gap to Muir Woods | 5:28 | 7:35 | -2:07 |
| Muir Woods to Cardiac | 25:56 | 29:58 | -4:02 |
| Cardiac to White Gate | 13:08 | 17:54 | -4:46 |
| White Gate to The Stile | 6:41 | 8:40 | -1:59 |
| The Stile to Finish | 1:45 | 2:26 | -0:41 |
Δ negative = Alex ran the segment faster.