Head-to-head
Pick two athletes to see how the race played out between them — by actual time, head start, and checkpoint.
Athlete A
OfficialBrian A Foster
#306 · 1:10:44 · M49 · Group V · INV
Wave start 8:20 AM (V-INV)
Athlete B
OfficialCaroline L Brockman
#309 · 1:14:50 · F27 · Group Q · INV
Wave start 8:16 AM (Q-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
Brian (V-INV) started at 8:20 AM; Caroline (Q-INV) started at 8:16 AM. That gave Caroline a 4 minutes head start on Brian. On foot, Brian ran 1:10:44 and Caroline ran 1:14:50 — Brian was 4:06 faster than Caroline. Brian took official place 306th (time-based 348th) and Caroline took official place 309th (time-based 475th). Brian was faster on foot and finished ahead on the official clock too. Biggest swing: Brian gained 3:50 from Muir Woods to Cardiac.
Deltas
ComputedWave start
Caroline L Brockman (Q-INV) started 4 min earlier than Brian (V-INV).
- Overall place Δ
- -3
- Actual time Δ
- -4:06
- Section gap Δ
- ±0 (same section)
- Wave start Δ
- 4 min (Caroline earlier)
- Finish clock Δ
- -0:06
- Section place Δ
- -18
Δ = Brian − Caroline. Negative means Brian is ahead/faster.
Race timeline
Computed- Caroline (Q-INV) started at 8:16 AM.
- Brian (V-INV) started at 8:20 AM, 4:00 later.
- Actual running time: Brian was 4:06 faster on foot than Caroline.
- Finish clock: Brian crossed the line 0:06 ahead of Caroline — Brian wins this head-to-head.
Δ (A − B): actual -4:06 · finish clock -0:06.
Position through the course
OfficialSegment-by-segment splits
Official| Segment | Brian | Caroline | Δ |
|---|---|---|---|
| Start to Top of Stairs | 8:00 | 8:38 | -0:38 |
| Stairs to Windy Gap | 6:06 | 6:48 | -0:42 |
| Windy Gap to Muir Woods | 5:40 | 5:41 | -0:01 |
| Muir Woods to Cardiac | 26:18 | 30:08 | -3:50 |
| Cardiac to White Gate | 14:43 | 14:09 | +0:34 |
| White Gate to The Stile | 7:42 | 7:20 | +0:22 |
| The Stile to Finish | 2:15 | 2:06 | +0:09 |
Δ negative = Brian ran the segment faster.