San Francisco Marathon logo
SF MARATHON 2ND HALF 2026

Vianna Peng

Bib: 23607•F•Age: 30

Burlingame, CA

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 3840
Gender (Female)
#0 / 1760
Top 42%
Division (F30-34)
#0 / 408
Top 46%
Race Day Weather
59°/49°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
2M
20:29
Rank: #2218
Start → 2M
10:14/mi
20:29 split
4M
39:26
Rank: #2063 (+155)
2M → 4M
9:29/mi
18:57 split
6M
1:04:21
Rank: #2086 (-23)
4M → 6M
12:27/mi
24:55 split
8M
1:20:07
Rank: #2082 (+4)
6M → 8M
7:53/mi
15:46 split
10M
1:41:52
Rank: #2074 (+8)
8M → 10M
10:53/mi
21:45 split
12M
2:04:28
Rank: #2060 (+14)
10M → 12M
11:18/mi
22:36 split
Finish· 13.11 mi
2:16:43
Rank: #2073 (-13)
12M → Finish
11:03/mi
12:15 split

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
Time1:04:21
Pace10:44 /mi
2nd Half
Distance7.11 mi
Time1:12:22
Pace10:11 /mi
📊Positive Split: 12.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi08:58:2920:2910:1420:29
10:14
-
4M
4.00 mi09:17:2639:269:5218:57
9:29
-0:45
6M
6.00 mi09:42:211:04:2110:4424:55
12:27
+2:58
8M
8.00 mi09:58:071:20:0710:0115:46
7:53
-4:34
10M
10.00 mi10:19:521:41:5210:1121:45
10:53
+3:00
12M
12.00 mi10:42:282:04:2810:2222:36
11:18
+0:25
Finish
13.11 mi10:54:432:16:4310:2612:15
11:03
-0:15

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

7:53 /mi

Average Pace

10:26 /mi

Slowest Pace

12:27 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

34:43

25% of race

Time at Steady Pace

1:17:05

56% of race

Time at Slower Pace

24:55

18% of race

Average Pace: 10:26 /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 mi08:58:2920:2910:1420:29
10:14
#2218
4M
4.00 mi09:17:2639:269:5218:57
9:29
#2063
6M
6.00 mi09:42:211:04:2110:4424:55
12:27
#2086
8M
8.00 mi09:58:071:20:0710:0115:46
7:53
#2082
10M
10.00 mi10:19:521:41:5210:1121:45
10:53
#2074
12M
12.00 mi10:42:282:04:2810:2222:36
11:18
#2060
Finish
13.11 mi10:54:432:16:4310:2612:15
11:03
#2073
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF30-34Seg. OverallSeg. FemalesSeg. F30-34
2M2.00 mi2.00 mi22187992092073(Top 54%)778(Top 44%)193(Top 47%)
4M4.00 mi2.00 mi2063+155723+76190+191979(Top 52%)687(Top 39%)183(Top 45%)
6M6.00 mi2.00 mi2086-23728-51902124(Top 55%)745(Top 42%)194(Top 48%)
8M8.00 mi2.00 mi2082+4723+51902142(Top 56%)761(Top 43%)194(Top 48%)
10M10.00 mi2.00 mi2074+8723187+32147(Top 56%)781(Top 44%)196(Top 48%)
12M12.00 mi2.00 mi2060+14722+1183+42073(Top 54%)778(Top 44%)193(Top 47%)
Finish13.11 mi1.11 mi2073-13734-12187-42186(Top 57%)849(Top 48%)217(Top 53%)

Segment Performance Analysis

10M→12M

0.0 - 2.0 mi

Top 54%
×9story building
+138ft-68ft

Overall

2073

Females

778

F30-34

193

2M→4M

2.0 - 4.0 mi

Top 52%
×13story building
+163ft-19ft

Overall

1979

Females

687

F30-34

183

4M→6M

4.0 - 6.0 mi

Top 55%
×4story building
+55ft-83ft

Overall

2124

Females

745

F30-34

194

6M→8M

6.0 - 8.0 mi

Top 56%
×10story building
+65ft-151ft

Overall

2142

Females

761

F30-34

194

8M→10M

8.0 - 10.0 mi

Top 56%
×10story building
+61ft-174ft

Overall

2147

Females

781

F30-34

196

10M→12M

10.0 - 12.0 mi

Top 54%
×3story building
+41ft-53ft

Overall

2073

Females

778

F30-34

193

12M→Finish

12.0 - 13.1 mi

Top 57%
×1human
+6ft-6ft

Overall

2186

Females

849

F30-34

217

Passing Analysis

Category:
Athletes Passed
371*
Passed By
226
Net Change
+145
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#2218
2M → 4M18429+155#2218#2063
4M → 6M5073-23#2063#2086
6M → 8M3026+4#2086#2082
8M → 10M39*31+8#2082#2074
10M → 12M5642+14#2074#2060
12M → Finish12*25-13#2060#2073
TOTALS371*226+145

* 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