Head-to-head
Pick two athletes to see how the race played out between them — by actual time, head start, and checkpoint.
Athlete A
OfficialJoanna Chen
#497 · 1:23:11 · F28 · Group Q · INV
Wave start 8:16 AM (Q-INV)
Athlete B
OfficialJohn G Catts
#496 · 1:37:00 · M72 · Group A · INV
Wave start 8:02 AM (A-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
Joanna (Q-INV) started at 8:16 AM; John (A-INV) started at 8:02 AM. That gave John a 14 minutes head start on Joanna. On foot, Joanna ran 1:23:11 and John ran 1:37:00 — Joanna was 13:49 faster than John. Joanna took official place 497th (time-based 745th) and John took official place 496th (time-based 1056th). John's head start was enough to flip the official order even though Joanna was faster on foot. Biggest swing: Joanna gained 5:09 from Muir Woods to Cardiac.
Deltas
ComputedWave start
John G Catts (A-INV) started 14 min earlier than Joanna (Q-INV).
- Overall place Δ
- +1
- Actual time Δ
- -13:49
- Section gap Δ
- ±0 (same section)
- Wave start Δ
- 14 min (John earlier)
- Finish clock Δ
- +0:11
- Section place Δ
- +52
Δ = Joanna − John. Negative means Joanna is ahead/faster.
Race timeline
Computed- John (A-INV) started at 8:02 AM.
- Joanna (Q-INV) started at 8:16 AM, 14:00 later.
- Actual running time: Joanna was 13:49 faster on foot than John.
- Finish clock: John crossed the line 0:11 ahead of Joanna — John wins this head-to-head.
Δ (A − B): actual -13:49 · finish clock +0:11.
Position through the course
OfficialSegment-by-segment splits
Official| Segment | Joanna | John | Δ |
|---|---|---|---|
| Start to Top of Stairs | 9:10 | 11:09 | -1:59 |
| Stairs to Windy Gap | 7:25 | 9:04 | -1:39 |
| Windy Gap to Muir Woods | 6:45 | 8:00 | -1:15 |
| Muir Woods to Cardiac | 31:59 | 37:08 | -5:09 |
| Cardiac to White Gate | 17:31 | 19:28 | -1:57 |
| White Gate to The Stile | 8:09 | 9:19 | -1:10 |
| The Stile to Finish | 2:12 | 2:52 | -0:40 |
Δ negative = Joanna ran the segment faster.