San Francisco Marathon logo
SF MARATHON 2ND HALF 2026

Teresa (Ya-Chiao) Chuang

Bib: 23347•F•Age: 30

SF, CA

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 3840
Top 27%
Gender (Female)
#0 / 1760
Top 17%
Division (F30-34)
#0 / 408
Top 18%
Race Day Weather
59°/49°F
scattered clouds

⏱️ Race Timeline

Course Elevation
9–292 ft
≈
×24story building
•▲ 548 ft climb · ▼ 587 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
2M
9:13/mi
18:26
↑ 138↓ 680.7%
4M
8:41/mi
35:48
↑ 1631.4%
6M
10:52/mi
57:33
↑ 55↓ 830.3%
8M
6:45/mi
1:11:03
↑ 65↓ 1510.8%
10M
9:18/mi
1:29:38
↑ 61↓ 1741.1%
12M
9:12/mi
1:48:02
↑ 41↓ 530.1%
Finish· 13.11 mi
8:37/mi
1:57:35
→ flat

The Course

Is this your race?

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.

Half Splits

1st Half· via 6MFaster
Distance6.00 mi
Time57:33
Pace9:36 /mi
2nd Half
Distance7.11 mi
Time1:00:02
Pace8:27 /mi
📊Positive Split: 4.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi09:04:3118:269:1318:26
9:13
-
4M
4.00 mi09:21:5335:488:5717:22
8:41
-0:32
6M
6.00 mi09:43:3857:339:3621:45
10:52
+2:11
8M
8.00 mi09:57:081:11:038:5313:30
6:45
-4:07
10M
10.00 mi10:15:431:29:388:5818:35
9:18
+2:33
12M
12.00 mi10:34:071:48:029:0018:24
9:12
-0:06
Finish
13.11 mi10:43:401:57:358:589:33
8:37
-0:35

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

6:45 /mi

Average Pace

8:58 /mi

Slowest Pace

10:52 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

23:03

20% of race

Time at Steady Pace

1:12:47

62% of race

Time at Slower Pace

21:45

18% of race

Average Pace: 8:58 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

🎨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.

Loading...
0mi3.3mi6.6mi9.8mi13.1mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
2M
2.00 mi09:04:3118:269:1318:26
9:13
#1386
4M
4.00 mi09:21:5335:488:5717:22
8:41
#1373
6M
6.00 mi09:43:3857:339:3621:45
10:52
#1270
8M
8.00 mi09:57:081:11:038:5313:30
6:45
#1214
10M
10.00 mi10:15:431:29:388:5818:35
9:18
#1178
12M
12.00 mi10:34:071:48:029:0018:24
9:12
#1107
Finish
13.11 mi10:43:401:57:358:589:33
8:37
#1054
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF30-34Seg. OverallSeg. FemalesSeg. F30-34
2M2.00 mi2.00 mi1386416102860(Top 22%)233(Top 13%)56(Top 14%)
4M4.00 mi2.00 mi1373+13412+496+61368(Top 36%)419(Top 24%)97(Top 24%)
6M6.00 mi2.00 mi1270+103379+3389+71126(Top 29%)319(Top 18%)74(Top 18%)
8M8.00 mi2.00 mi1214+56358+2185+41082(Top 28%)304(Top 17%)68(Top 17%)
10M10.00 mi2.00 mi1178+36343+1583+21126(Top 29%)326(Top 19%)79(Top 19%)
12M12.00 mi2.00 mi1107+71315+2876+7860(Top 22%)233(Top 13%)56(Top 14%)
Finish13.11 mi1.11 mi1054+53294+2172+4727(Top 19%)178(Top 10%)40(Top 10%)

Segment Performance Analysis

10M→12M

0.0 - 2.0 mi

Top 22%
×9story building
+138ft-68ft

Overall

860

Females

233

F30-34

56

2M→4M

2.0 - 4.0 mi

Top 36%
×13story building
+163ft-19ft

Overall

1368

Females

419

F30-34

97

4M→6M

4.0 - 6.0 mi

Top 29%
×4story building
+55ft-83ft

Overall

1126

Females

319

F30-34

74

6M→8M

6.0 - 8.0 mi

Top 28%
×10story building
+65ft-151ft

Overall

1082

Females

304

F30-34

68

8M→10M

8.0 - 10.0 mi

Top 29%
×10story building
+61ft-174ft

Overall

1126

Females

326

F30-34

79

10M→12M

10.0 - 12.0 mi

Top 22%
×3story building
+41ft-53ft

Overall

860

Females

233

F30-34

56

12M→Finish

12.0 - 13.1 mi

Top 19%
×1human
+6ft-6ft

Overall

727

Females

178

F30-34

40

Passing Analysis

Category:
Athletes Passed
457*
Passed By
125
Net Change
+332
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#1386
2M → 4M9380+13#1386#1373
4M → 6M11512+103#1373#1270
6M → 8M648+56#1270#1214
8M → 10M53*17+36#1214#1178
10M → 12M765+71#1178#1107
12M → Finish563+53#1107#1054
TOTALS457*125+332

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

Passing Visuals

Category:
Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

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 Support
Share Feedback

Official Timing Data

The San Francisco Marathon

The San Francisco Marathon