Cheng Fang Tsai
Bib: 22939•F•Age: 39
Milpitas, 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 | 09:01:57 | 15:37 | 13:01 | 15:37 | 13:01 | - |
4.9M | 4.90 mi | 09:44:36 | 58:16 | 11:53 | 42:39 | 11:32 | -1:29 |
11.9M | 11.90 mi | 11:14:48 | 2:28:28 | 12:29 | 1:30:12 | 12:53 | +1:21 |
Finish | 13.11 mi | 11:40:37 | 2:54:17 | 13:18 | 25:49 | 21:21 | +8:28 |
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
11:32 /mi
Average Pace
13:18 /mi
Slowest Pace
21:21 /mi
📊Segments
Segment Time Comparison
Time at Faster Pace
0:00
0% of race
Time at Steady Pace
2:28:28
85% of race
Time at Slower Pace
25:49
15% of race
Average Pace: 13:18 /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 | 09:01:57 | 15:37 | 13:01 | 15:37 | 13:01 | #3267 | |
4.9M | 4.90 mi | 09:44:36 | 58:16 | 11:53 | 42:39 | 11:32 | #3113 | |
11.9M | 11.90 mi | 11:14:48 | 2:28:28 | 12:29 | 1:30:12 | 12:53 | #3083 | |
Finish | 13.11 mi | 11:40:37 | 2:54:17 | 13:18 | 25:49 | 21:21 | #3256 |
Checkpoint and Segment Rankings
| Checkpoint | Distance | Seg. Dist | Overall | Females | F35-39 | Seg. Overall | Seg. Females | Seg. F35-39 |
|---|---|---|---|---|---|---|---|---|
| 1.2M | 1.20 mi | 1.20 mi | 3267 | 1441 | 156 | 3267(Top 91%) | 1441(Top 88%) | 156(Top 79%) |
| 4.9M | 4.90 mi | 3.70 mi | 3113+154 | 1343+98 | 147+9 | 3054(Top 85%) | 1316(Top 80%) | 143(Top 72%) |
| 11.9M | 11.90 mi | 7.00 mi | 3083+30 | 1338+5 | 149-2 | 3070(Top 85%) | 1334(Top 81%) | 150(Top 76%) |
| Finish | 13.11 mi | 1.21 mi | 3256-173 | 1437-99 | 160-11 | 3582(Top 99%) | 1636(Top 99%) | 197(Top 99%) |
Segment Performance Analysis
Start → 1.2M
0.0 - 1.2 mi
Overall
3267
Females
1441
F35-39
156
1.2M→4.9M
1.2 - 4.9 mi
Overall
3054
Females
1316
F35-39
143
4.9M→11.9M
4.9 - 11.9 mi
Overall
3070
Females
1334
F35-39
150
11.9M→Finish
11.9 - 13.1 mi
Overall
3582
Females
1636
F35-39
197
Passing Analysis
| Segment | Athletes Passed | Passed By | Net Change | Start Rank | End Rank |
|---|---|---|---|---|---|
| Start → 1.2M | - | - | - | - | #3267 |
| 1.2M → 4.9M | 172* | 18 | +154 | #3267 | #3113 |
| 4.9M → 11.9M | 93* | 63 | +30 | #3113 | #3083 |
| 11.9M → Finish | 2* | 175 | -173 | #3083 | #3256 |
| TOTALS | 267* | 256 | +11 |
* Includes athletes who did not complete a segment (DNF/DNQ).
Passing Visuals
🔄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
