Brian Simpson
Bib: 21741•M•Age: 44
San Francisco, CA
⏱️ Race Timeline
The Course
Claim it — unlock a deeper AI report on this race, free
A personalized Race Performance Report that goes beyond this page — emailed to you, built from your real splits.
Checkpoint Splits
| Checkpoint | Distance | Time of Day | Time | Avg Pace | Segment Time | Segment Pace | Diff |
|---|---|---|---|---|---|---|---|
1.2M | 1.20 mi | 08:52:12 | 11:24 | 9:30 | 11:24 | 9:30 | - |
4.9M | 4.90 mi | 09:22:03 | 41:15 | 8:25 | 29:51 | 8:04 | -1:26 |
11.9M | 11.90 mi | 10:22:17 | 1:41:29 | 8:32 | 1:00:14 | 8:36 | +0:32 |
Finish | 13.11 mi | 10:32:41 | 1:51:53 | 8:32 | 10:24 | 8:36 | 0:00 |
Checkpoints & Pacing
📈Pace Line
Pace Progression
Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.
Fastest Pace
8:04 /mi
Average Pace
8:32 /mi
Slowest Pace
9:30 /mi
📊Segments
Segment Time Comparison
Time at Faster Pace
1:40:29
90% of race
Time at Steady Pace
11:24
10% of race
Time at Slower Pace
0:00
0% of race
Average Pace: 8:32 /mi
🎨Heatmap
Pace Heatmap
Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.
Click or hover over segments to see details
✨Sparklines
Checkpoint Splits with Pace Trends
Overall Pace Trend
| Checkpoint | Distance | Time of Day | Time | Avg Pace | Segment | Pace | Trend | Rank |
|---|---|---|---|---|---|---|---|---|
1.2M | 1.20 mi | 08:52:12 | 11:24 | 9:30 | 11:24 | 9:30 | #1105 | |
4.9M | 4.90 mi | 09:22:03 | 41:15 | 8:25 | 29:51 | 8:04 | #831 | |
11.9M | 11.90 mi | 10:22:17 | 1:41:29 | 8:32 | 1:00:14 | 8:36 | #775 | |
Finish | 13.11 mi | 10:32:41 | 1:51:53 | 8:32 | 10:24 | 8:36 | #753 |
Checkpoint and Segment Rankings
| Checkpoint | Distance | Seg. Dist | Overall | Males | M40-44 | Seg. Overall | Seg. Males | Seg. M40-44 |
|---|---|---|---|---|---|---|---|---|
| 1.2M | 1.20 mi | 1.20 mi | 1105 | 792 | 68 | 1105(Top 31%) | 792(Top 41%) | 68(Top 41%) |
| 4.9M | 4.90 mi | 3.70 mi | 831+274 | 624+168 | 51+17 | 756(Top 21%) | 572(Top 29%) | 44(Top 26%) |
| 11.9M | 11.90 mi | 7.00 mi | 775+56 | 589+35 | 45+6 | 793(Top 22%) | 599(Top 31%) | 43(Top 26%) |
| Finish | 13.11 mi | 1.21 mi | 753+22 | 569+20 | 41+4 | 673(Top 19%) | 512(Top 26%) | 38(Top 23%) |
Segment Performance Analysis
Start → 1.2M
0.0 - 1.2 mi
Overall
1105
Males
792
M40-44
68
1.2M→4.9M
1.2 - 4.9 mi
Overall
756
Males
572
M40-44
44
4.9M→11.9M
4.9 - 11.9 mi
Overall
793
Males
599
M40-44
43
11.9M→Finish
11.9 - 13.1 mi
Overall
673
Males
512
M40-44
38
Passing Analysis
| Segment | Athletes Passed | Passed By | Net Change | Start Rank | End Rank |
|---|---|---|---|---|---|
| Start → 1.2M | - | - | - | - | #1105 |
| 1.2M → 4.9M | 289* | 15 | +274 | #1105 | #831 |
| 4.9M → 11.9M | 98 | 42 | +56 | #831 | #775 |
| 11.9M → Finish | 28* | 6 | +22 | #775 | #753 |
| TOTALS | 415* | 63 | +352 |
* Includes athletes who did not complete a segment (DNF/DNQ).
Passing Visuals
🔥Passing Intensity
🔄Passing Circle
🌊Position Flow
🏃Race Lanes
Upload your GPX file
Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps
.gpx files up to 10MB
Export Track Data
Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.
Questions or issues regarding timing data?
If you notice any discrepancies in your timing data or have questions about your results, our support team can help.
Contact Race SupportQuick Links
Explore more race data and athlete comparisons
Official Timing Data
Enhanced athlete results built from official timing data.
Race managed by
The San Francisco Marathon
