Head-to-head
Pick two athletes to see how the race played out between them — by actual time, head start, and checkpoint.
Athlete A
OfficialJohn P Cassidy
#517 · 1:23:17 · M46 · Group W · INV
Wave start 8:21 AM (W-INV)
Athlete B
OfficialEmma F Broderick
#518 · 1:01:21 · F33 · Group Q · DR
Wave start 8:43 AM (Q-DR)
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
John (W-INV) started at 8:21 AM; Emma (Q-DR) started at 8:43 AM. That gave John a 22 minutes head start on Emma because the Runner wave starts 27 minutes after the Invitational wave. On foot, John ran 1:23:17 and Emma ran 1:01:21 — Emma was 21:56 faster than John. John took official place 517th (time-based 749th) and Emma took official place 518th (time-based 91st). John's head start was enough to flip the official order even though Emma was faster on foot. Biggest swing: Emma gained 12:03 from Muir Woods to Cardiac.
Deltas
ComputedWave start
John P Cassidy (W-INV) started 22 min earlier than Emma (Q-DR).
The Runner wave starts 27 min after the Invitational wave.
- Overall place Δ
- -1
- Actual time Δ
- +21:56
- Section gap Δ
- 27 min (John earlier)
- Wave start Δ
- 22 min (John earlier)
- Finish clock Δ
- -0:04
- Section place Δ
- —
Δ = John − Emma. Negative means John is ahead/faster.
Race timeline
Computed- John (W-INV) started at 8:21 AM.
- Emma (Q-DR) started at 8:43 AM, 22:00 later — the Invitational wave starts 27 min before the Runner wave.
- Actual running time: Emma was 21:56 faster on foot than John.
- Finish clock: John crossed the line 0:04 ahead of Emma — John wins this head-to-head.
Δ (A − B): actual +21:56 · finish clock -0:04.
Position through the course
OfficialSegment-by-segment splits
Official| Segment | John | Emma | Δ |
|---|---|---|---|
| Start to Top of Stairs | 9:07 | 7:52 | +1:15 |
| Stairs to Windy Gap | 7:02 | 5:15 | +1:47 |
| Windy Gap to Muir Woods | 6:12 | 5:42 | +0:30 |
| Muir Woods to Cardiac | 33:58 | 21:55 | +12:03 |
| Cardiac to White Gate | 16:51 | 12:43 | +4:08 |
| White Gate to The Stile | 8:01 | 6:09 | +1:52 |
| The Stile to Finish | 2:06 | 1:45 | +0:21 |
Δ negative = John ran the segment faster.