Head-to-head
Pick two athletes to see how the race played out between them — by actual time, head start, and checkpoint.
Athlete A
OfficialGretchen Andrus
#430 · 1:18:35 · F38 · Group Q · INV
Wave start 8:16 AM (Q-INV)
Athlete B
OfficialJames L Shirley
#432 · 1:11:41 · M35 · 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
Gretchen (Q-INV) started at 8:16 AM; James (Y-INV) started at 8:23 AM. That gave Gretchen a 7 minutes head start on James. On foot, Gretchen ran 1:18:35 and James ran 1:11:41 — James was 6:54 faster than Gretchen. Gretchen took official place 430th (time-based 595th) and James took official place 432nd (time-based 379th). Gretchen's head start was enough to flip the official order even though James was faster on foot. Biggest swing: James gained 2:31 from Cardiac to White Gate.
Deltas
ComputedWave start
Gretchen Andrus (Q-INV) started 7 min earlier than James (Y-INV).
- Overall place Δ
- -2
- Actual time Δ
- +6:54
- Section gap Δ
- ±0 (same section)
- Wave start Δ
- 7 min (Gretchen earlier)
- Finish clock Δ
- -0:06
- Section place Δ
- -31
Δ = Gretchen − James. Negative means Gretchen is ahead/faster.
Race timeline
Computed- Gretchen (Q-INV) started at 8:16 AM.
- James (Y-INV) started at 8:23 AM, 7:00 later.
- Actual running time: James was 6:54 faster on foot than Gretchen.
- Finish clock: Gretchen crossed the line 0:06 ahead of James — Gretchen wins this head-to-head.
Δ (A − B): actual +6:54 · finish clock -0:06.
Position through the course
OfficialSegment-by-segment splits
Official| Segment | Gretchen | James | Δ |
|---|---|---|---|
| Start to Top of Stairs | 8:43 | 8:06 | +0:37 |
| Stairs to Windy Gap | 7:04 | 6:04 | +1:00 |
| Windy Gap to Muir Woods | 6:27 | 5:36 | +0:51 |
| Muir Woods to Cardiac | 30:03 | 28:43 | +1:20 |
| Cardiac to White Gate | 16:38 | 14:07 | +2:31 |
| White Gate to The Stile | 7:33 | 7:12 | +0:21 |
| The Stile to Finish | 2:07 | 1:53 | +0:14 |
Δ negative = Gretchen ran the segment faster.