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 Etta Boitano Blanchard
#175 · 1:22:41 · F63 · Group B · INV
Wave start 8:03 AM (B-INV)
Athlete B
OfficialRowan E Prindiville
#177 · 1:01:51 · M18 · Group Z · INV
Wave start 8:24 AM (Z-INV)
Comparison report
Download the full report as a PDF, share the file, or send a link to this view.
The PDF includes the interpretation, deltas, race timeline, position-through-the-course chart, and segment-by-segment splits shown below.
Interpretation
Mary Etta (B-INV) started at 8:03 AM; Rowan (Z-INV) started at 8:24 AM. That gave Mary Etta a 21 minutes head start on Rowan. On foot, Mary Etta ran 1:22:41 and Rowan ran 1:01:51 — Rowan was 20:50 faster than Mary Etta. Mary Etta took official place 175th (time-based 725th) and Rowan took official place 177th (time-based 105th). Mary Etta's head start was enough to flip the official order even though Rowan was faster on foot. Biggest swing: Rowan gained 6:06 from Muir Woods to Cardiac.
Deltas
ComputedWave start
Mary Etta Boitano Blanchard (B-INV) started 21 min earlier than Rowan (Z-INV).
- Overall place Δ
- -2
- Actual time Δ
- +20:50
- Section gap Δ
- ±0 (same section)
- Wave start Δ
- 21 min (Mary Etta earlier)
- Finish clock Δ
- -0:10
- Section place Δ
- -18
Δ = Mary Etta − Rowan. Negative means Mary Etta is ahead/faster.
Race timeline
Computed- Mary Etta (B-INV) started at 8:03 AM.
- Rowan (Z-INV) started at 8:24 AM, 21:00 later.
- Actual running time: Rowan was 20:50 faster on foot than Mary Etta.
- Finish clock: Mary Etta crossed the line 0:10 ahead of Rowan — Mary Etta wins this head-to-head.
Δ (A − B): actual +20:50 · finish clock -0:10.
Position through the course
OfficialSegment-by-segment splits
Official| Segment | Mary Etta | Rowan | Δ |
|---|---|---|---|
| Start to Top of Stairs | 10:19 | 6:27 | +3:52 |
| Stairs to Windy Gap | 7:22 | 5:08 | +2:14 |
| Windy Gap to Muir Woods | 6:58 | 5:05 | +1:53 |
| Muir Woods to Cardiac | 30:54 | 24:48 | +6:06 |
| Cardiac to White Gate | 16:30 | 12:33 | +3:57 |
| White Gate to The Stile | 8:03 | 6:17 | +1:46 |
| The Stile to Finish | 2:35 | 1:33 | +1:02 |
Δ negative = Mary Etta ran the segment faster.