Head-to-head
Pick two athletes to see how the race played out between them — by actual time, head start, and checkpoint.
Athlete A
OfficialEric M Spector
#515 · 1:44:05 · M79 · Group AAA · INV
Wave start 8:00 AM (AAA-INV)
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
Eric (AAA-INV) started at 8:00 AM; Julia (Q-INV) started at 8:16 AM. That gave Eric a 16 minutes head start on Julia. On foot, Eric ran 1:44:05 and Julia ran 57:02 — Julia was 47:03 faster than Eric. Eric took official place 515th (time-based 1156th) 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 17:30 from Muir Woods to Cardiac.
Deltas
ComputedWave start
Eric M Spector (AAA-INV) started 16 min earlier than Julia (Q-INV).
- Overall place Δ
- +512
- Actual time Δ
- +47:03
- Section gap Δ
- ±0 (same section)
- Wave start Δ
- 16 min (Eric earlier)
- Finish clock Δ
- +31:03
- Section place Δ
- +6
Δ = Eric − Julia. Negative means Eric is ahead/faster.
Race timeline
Computed- Eric (AAA-INV) started at 8:00 AM.
- Julia (Q-INV) started at 8:16 AM, 16:00 later.
- Actual running time: Julia was 47:03 faster on foot than Eric.
- Finish clock: Julia crossed the line 31:03 ahead of Eric — Julia wins this head-to-head.
Δ (A − B): actual +47:03 · finish clock +31:03.
Position through the course
OfficialSegment-by-segment splits
Official| Segment | Eric | Julia | Δ |
|---|---|---|---|
| Start to Top of Stairs | 12:02 | 6:46 | +5:16 |
| Stairs to Windy Gap | 9:30 | 5:03 | +4:27 |
| Windy Gap to Muir Woods | 8:59 | 5:20 | +3:39 |
| Muir Woods to Cardiac | 37:56 | 20:26 | +17:30 |
| Cardiac to White Gate | 22:01 | 11:52 | +10:09 |
| White Gate to The Stile | 10:48 | 5:54 | +4:54 |
| The Stile to Finish | 2:49 | 1:41 | +1:08 |
Δ negative = Eric ran the segment faster.