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
OfficialHaley H Bryan
#1156 · 1:42:36 · F40 · Group P · DR
Wave start 8:42 AM (P-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
KATHERINE (Q-DR) started at 8:43 AM; Haley (P-DR) started at 8:42 AM. That gave Haley a 1 minute head start on KATHERINE. On foot, KATHERINE ran 1:42:01 and Haley ran 1:42:36 — KATHERINE was 0:35 faster than Haley. KATHERINE took official place 1159th (time-based 1122nd) and Haley took official place 1156th (time-based 1132nd). Haley's head start was enough to flip the official order even though KATHERINE was faster on foot. Biggest swing: Haley gained 1:44 from Windy Gap to Muir Woods.
Deltas
ComputedWave start
Haley H Bryan (P-DR) started 1 min earlier than KATHERINE (Q-DR).
- Overall place Δ
- +3
- Actual time Δ
- -0:35
- Section gap Δ
- ±0 (same section)
- Wave start Δ
- 1 min (Haley earlier)
- Finish clock Δ
- +0:25
- Section place Δ
- +30
Δ = KATHERINE − Haley. Negative means KATHERINE is ahead/faster.
Race timeline
Computed- Haley (P-DR) started at 8:42 AM.
- KATHERINE (Q-DR) started at 8:43 AM, 1:00 later.
- Actual running time: KATHERINE was 0:35 faster on foot than Haley.
- Finish clock: Haley crossed the line 0:25 ahead of KATHERINE — Haley wins this head-to-head.
Δ (A − B): actual -0:35 · finish clock +0:25.
Position through the course
OfficialSegment-by-segment splits
Official| Segment | KATHERINE | Haley | Δ |
|---|---|---|---|
| Start to Top of Stairs | 12:08 | 12:37 | -0:29 |
| Stairs to Windy Gap | 8:51 | 8:55 | -0:04 |
| Windy Gap to Muir Woods | 9:38 | 7:54 | +1:44 |
| Muir Woods to Cardiac | 37:35 | 38:18 | -0:43 |
| Cardiac to White Gate | 21:16 | 21:44 | -0:28 |
| White Gate to The Stile | 9:56 | 10:06 | -0:10 |
| The Stile to Finish | 2:37 | 3:02 | -0:25 |
Δ negative = KATHERINE ran the segment faster.