Head-to-head
Pick two athletes to see how the race played out between them — by actual time, head start, and checkpoint.
Athlete A
OfficialSandra M Holbrook James
#311 · 1:23:53 · F58 · Group F · INV
Wave start 8:07 AM (F-INV)
Athlete B
OfficialBrian A Foster
#306 · 1:10:44 · M49 · Group V · INV
Wave start 8:20 AM (V-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
Sandra (F-INV) started at 8:07 AM; Brian (V-INV) started at 8:20 AM. That gave Sandra a 13 minutes head start on Brian. On foot, Sandra ran 1:23:53 and Brian ran 1:10:44 — Brian was 13:09 faster than Sandra. Sandra took official place 311th (time-based 763rd) and Brian took official place 306th (time-based 348th). Brian was faster on foot and finished ahead on the official clock too. Biggest swing: Brian gained 3:40 from Muir Woods to Cardiac.
Deltas
ComputedWave start
Sandra M Holbrook James (F-INV) started 13 min earlier than Brian (V-INV).
- Overall place Δ
- +5
- Actual time Δ
- +13:09
- Section gap Δ
- ±0 (same section)
- Wave start Δ
- 13 min (Sandra earlier)
- Finish clock Δ
- +0:09
- Section place Δ
- -16
Δ = Sandra − Brian. Negative means Sandra is ahead/faster.
Race timeline
Computed- Sandra (F-INV) started at 8:07 AM.
- Brian (V-INV) started at 8:20 AM, 13:00 later.
- Actual running time: Brian was 13:09 faster on foot than Sandra.
- Finish clock: Brian crossed the line 0:09 ahead of Sandra — Brian wins this head-to-head.
Δ (A − B): actual +13:09 · finish clock +0:09.
Position through the course
OfficialSegment-by-segment splits
Official| Segment | Sandra | Brian | Δ |
|---|---|---|---|
| Start to Top of Stairs | 10:04 | 8:00 | +2:04 |
| Stairs to Windy Gap | 7:16 | 6:06 | +1:10 |
| Windy Gap to Muir Woods | 7:35 | 5:40 | +1:55 |
| Muir Woods to Cardiac | 29:58 | 26:18 | +3:40 |
| Cardiac to White Gate | 17:54 | 14:43 | +3:11 |
| White Gate to The Stile | 8:40 | 7:42 | +0:58 |
| The Stile to Finish | 2:26 | 2:15 | +0:11 |
Δ negative = Sandra ran the segment faster.