Head-to-head
Pick two athletes to see how the race played out between them — by actual time, head start, and checkpoint.
Athlete A
OfficialMary Ludlam
#871 · 1:32:11 · F51 · Group L · DR
Wave start 8:39 AM (L-DR)
Athlete B
OfficialEdward R Owens
#2 · 48:29 · M32 · Group Z · INV
Wave start 8:24 AM (Z-INV)
Interpretation
Mary (L-DR) started at 8:39 AM; Edward (Z-INV) started at 8:24 AM. That gave Edward a 15 minutes head start on Mary because the Runner wave starts 27 minutes after the Invitational wave. On foot, Mary ran 1:32:11 and Edward ran 48:29 — Edward was 43:42 faster than Mary. Mary took official place 871st (time-based 948th) and Edward took official place 2nd (time-based 1st). Edward was faster on foot and finished ahead on the official clock too. Biggest swing: Edward gained 16:27 from Muir Woods to Cardiac.
Deltas
ComputedWave start
Edward R Owens (Z-INV) started 15 min earlier than Mary (L-DR).
The Runner wave starts 27 min after the Invitational wave.
- Overall place Δ
- +869
- Actual time Δ
- +43:42
- Section gap Δ
- 27 min (Edward earlier)
- Wave start Δ
- 15 min (Edward earlier)
- Finish clock Δ
- +58:42
- Section place Δ
- —
Δ = Mary − Edward. Negative means Mary is ahead/faster.
Race timeline
Computed- Edward (Z-INV) started at 8:24 AM.
- Mary (L-DR) started at 8:39 AM, 15:00 later — the Invitational wave starts 27 min before the Runner wave.
- Actual running time: Edward was 43:42 faster on foot than Mary.
- Finish clock: Edward crossed the line 58:42 ahead of Mary — Edward wins this head-to-head.
Δ (A − B): actual +43:42 · finish clock +58:42.
Position through the course
OfficialSegment-by-segment splits
Official| Segment | Mary | Edward | Δ |
|---|---|---|---|
| Start to Top of Stairs | 10:18 | 5:48 | +4:30 |
| Stairs to Windy Gap | 7:43 | 4:17 | +3:26 |
| Windy Gap to Muir Woods | 6:53 | 4:16 | +2:37 |
| Muir Woods to Cardiac | 34:19 | 17:52 | +16:27 |
| Cardiac to White Gate | 20:45 | 9:40 | +11:05 |
| White Gate to The Stile | 9:18 | 5:03 | +4:15 |
| The Stile to Finish | 2:55 | 1:33 | +1:22 |
Δ negative = Mary ran the segment faster.