Head-to-head
Pick two athletes to see how the race played out between them — by actual time, head start, and checkpoint.
Athlete A
OfficialKATHERINE OBRIEN
#1159 · 1:42:01 · F31 · Group Q · DR
Wave start 8:43 AM (Q-DR)
Athlete B
OfficialJulia R Maxwell Bailey
#3 · 57:02 · F30 · 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
KATHERINE (Q-DR) started at 8:43 AM; Julia (Q-INV) started at 8:16 AM. That gave Julia a 27 minutes head start on KATHERINE because the Runner wave starts 27 minutes after the Invitational wave. On foot, KATHERINE ran 1:42:01 and Julia ran 57:02 — Julia was 44:59 faster than KATHERINE. KATHERINE took official place 1159th (time-based 1122nd) and Julia took official place 3rd (time-based 32nd). Julia was faster on foot and finished ahead on the official clock too. Biggest swing: Julia gained 17:09 from Muir Woods to Cardiac.
Deltas
ComputedWave start
Julia R Maxwell Bailey (Q-INV) started 27 min earlier than KATHERINE (Q-DR).
The Runner wave starts 27 min after the Invitational wave.
- Overall place Δ
- +1156
- Actual time Δ
- +44:59
- Section gap Δ
- 27 min (Julia earlier)
- Wave start Δ
- 27 min (Julia earlier)
- Finish clock Δ
- +1:11:59
- Section place Δ
- —
Δ = KATHERINE − Julia. Negative means KATHERINE is ahead/faster.
Race timeline
Computed- Julia (Q-INV) started at 8:16 AM.
- KATHERINE (Q-DR) started at 8:43 AM, 27:00 later — the Invitational wave starts 27 min before the Runner wave.
- Actual running time: Julia was 44:59 faster on foot than KATHERINE.
- Finish clock: Julia crossed the line 1:11:59 ahead of KATHERINE — Julia wins this head-to-head.
Δ (A − B): actual +44:59 · finish clock +1:11:59.
Position through the course
OfficialSegment-by-segment splits
Official| Segment | KATHERINE | Julia | Δ |
|---|---|---|---|
| Start to Top of Stairs | 12:08 | 6:46 | +5:22 |
| Stairs to Windy Gap | 8:51 | 5:03 | +3:48 |
| Windy Gap to Muir Woods | 9:38 | 5:20 | +4:18 |
| Muir Woods to Cardiac | 37:35 | 20:26 | +17:09 |
| Cardiac to White Gate | 21:16 | 11:52 | +9:24 |
| White Gate to The Stile | 9:56 | 5:54 | +4:02 |
| The Stile to Finish | 2:37 | 1:41 | +0:56 |
Δ negative = KATHERINE ran the segment faster.