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
OfficialJames Hopkins
#1164 · 1:35:31 · M39 · Group Y · DR
Wave start 8:50 AM (Y-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; James (Y-DR) started at 8:50 AM. That gave KATHERINE a 7 minutes head start on James. On foot, KATHERINE ran 1:42:01 and James ran 1:35:31 — James was 6:30 faster than KATHERINE. KATHERINE took official place 1159th (time-based 1122nd) and James took official place 1164th (time-based 1024th). KATHERINE's head start was enough to flip the official order even though James was faster on foot. Biggest swing: James gained 1:51 from Windy Gap to Muir Woods.
Deltas
ComputedWave start
KATHERINE OBRIEN (Q-DR) started 7 min earlier than James (Y-DR).
- Overall place Δ
- -5
- Actual time Δ
- +6:30
- Section gap Δ
- ±0 (same section)
- Wave start Δ
- 7 min (KATHERINE earlier)
- Finish clock Δ
- -0:30
- Section place Δ
- -17
Δ = KATHERINE − James. Negative means KATHERINE is ahead/faster.
Race timeline
Computed- KATHERINE (Q-DR) started at 8:43 AM.
- James (Y-DR) started at 8:50 AM, 7:00 later.
- Actual running time: James was 6:30 faster on foot than KATHERINE.
- Finish clock: KATHERINE crossed the line 0:30 ahead of James — KATHERINE wins this head-to-head.
Δ (A − B): actual +6:30 · finish clock -0:30.
Position through the course
OfficialSegment-by-segment splits
Official| Segment | KATHERINE | James | Δ |
|---|---|---|---|
| Start to Top of Stairs | 12:08 | 11:10 | +0:58 |
| Stairs to Windy Gap | 8:51 | 7:37 | +1:14 |
| Windy Gap to Muir Woods | 9:38 | 7:47 | +1:51 |
| Muir Woods to Cardiac | 37:35 | 37:02 | +0:33 |
| Cardiac to White Gate | 21:16 | 19:56 | +1:20 |
| White Gate to The Stile | 9:56 | 9:36 | +0:20 |
| The Stile to Finish | 2:37 | 2:23 | +0:14 |
Δ negative = KATHERINE ran the segment faster.