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SF MARATHON 1ST HALF 2026

Shangwen Sun

Bib: 18137•F•Age: 28

Belmont, CA

0:00
0:00
/ mi
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Overall
#0 / 6575
Gender (Female)
#0 / 2930
Division (F25-29)
#0 / 674
Race Day Weather
59°/49°F
scattered clouds

⏱️ Race Timeline

Course Elevation
10–277 ft
≈
×22story building
•▲ 774 ft climb · ▼ 557 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
2M
10:26/mi
20:52
→ flat
4M
10:49/mi
42:29
↑ 67↓ 69
6M
11:37/mi
1:05:43
↑ 1231.1%
8M
12:52/mi
1:31:28
↑ 166↓ 531.1%
9.6M
9:54/mi
1:47:18
↑ 68↓ 1931.5%
10M
22:39/mi
1:56:21
↓ 241.1%
10.5M
5:26/mi
1:59:04
↓ 732.7%
12M
18:05/mi
2:26:12
↑ 2803.2%
Finish· 13.11 mi
12:21/mi
2:39:54
↑ 14↓ 891.3%

The Course

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Half Splits

1st Half· via 6MFaster
Distance6.00 mi
Time1:05:43
Pace10:57 /mi
2nd Half
Distance7.11 mi
Time1:34:11
Pace13:15 /mi
📊Positive Split: 43.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi07:07:3420:5210:2620:52
10:26
-
4M
4.00 mi07:29:1142:2910:3721:37
10:49
+0:23
6M
6.00 mi07:52:251:05:4310:5723:14
11:37
+0:48
8M
8.00 mi08:18:101:31:2811:2625:45
12:52
+1:15
9.6M
9.60 mi08:34:001:47:1811:1115:50
9:54
-2:58
10M
10.00 mi08:43:031:56:2111:389:03
22:39
+12:45
10.5M
10.50 mi08:45:461:59:0411:202:43
5:26
-17:13
12M
12.00 mi09:12:542:26:1212:1127:08
18:05
+12:39
Finish
13.11 mi09:26:362:39:5412:1213:42
12:21
-5:44

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

5:26 /mi

Average Pace

12:12 /mi

Slowest Pace

22:39 /mi

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Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:43

2% of race

Time at Steady Pace

2:01:00

76% of race

Time at Slower Pace

36:11

23% of race

Average Pace: 12:12 /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 mi07:07:3420:5210:2620:52
10:26
#3802
4M
4.00 mi07:29:1142:2910:3721:37
10:49
#3874
6M
6.00 mi07:52:251:05:4310:5723:14
11:37
#4127
8M
8.00 mi08:18:101:31:2811:2625:45
12:52
#4524
9.6M
9.60 mi08:34:001:47:1811:1115:50
9:54
#4408
10M
10.00 mi08:43:031:56:2111:389:03
22:39
#4448
10.5M
10.50 mi08:45:461:59:0411:202:43
5:26
#4435
12M
12.00 mi09:12:542:26:1212:1127:08
18:05
#4708
Finish
13.11 mi09:26:362:39:5412:1213:42
12:21
#4728
Faster pace
Steady pace
Slower pace
Featured Segment

Garmin Challenge

Top 70%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

11:46

Segment Time

13:05/mi

Pace

0.90 mi

Distance

Overall

4628

Women

1829

Division

448

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF25-29Seg. OverallSeg. FemalesSeg. F25-29
2M2.00 mi2.00 mi380213083165475(Top 83%)2319(Top 79%)555(Top 82%)
4M4.00 mi2.00 mi3874-721339-31332-163980(Top 61%)1395(Top 48%)345(Top 51%)
6M6.00 mi2.00 mi4127-2531468-129366-344653(Top 71%)1739(Top 59%)429(Top 64%)
8M8.00 mi2.00 mi4524-3971657-189404-385334(Top 81%)2124(Top 72%)497(Top 74%)
9.6M9.60 mi1.60 mi4408+1161623+34401+33880(Top 59%)1527(Top 52%)379(Top 56%)
10M10.00 mi0.40 mi4448-401655-32405-44829(Top 73%)1943(Top 66%)466(Top 69%)
10.5M10.50 mi0.50 mi4435+131646+94054246(Top 65%)1586(Top 54%)389(Top 58%)
12M12.00 mi1.50 mi4708-2731801-155438-335475(Top 83%)2319(Top 79%)555(Top 82%)
Finish13.11 mi1.11 mi4728-201819-18445-75164(Top 79%)2169(Top 74%)531(Top 79%)

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 83%
~flat
+5ft-3ft

Overall

5475

Females

2319

F25-29

555

2M→4M

2.0 - 4.0 mi

Top 61%
×4story building
+67ft-69ft

Overall

3980

Females

1395

F25-29

345

4M→6M

4.0 - 6.0 mi

Top 71%
×9story building
+123ft-9ft

Overall

4653

Females

1739

F25-29

429

6M→8M

6.0 - 8.0 mi

Top 81%
×12story building
+166ft-53ft

Overall

5334

Females

2124

F25-29

498

8M→9.6M

8.0 - 9.6 mi

Top 59%
×13story building
+68ft-193ft

Overall

3880

Females

1527

F25-29

379

9.6M→10M

9.6 - 10.0 mi

Top 73%
×2story building
+0ft-24ft

Overall

4829

Females

1943

F25-29

467

10M→10.5M

10.0 - 10.5 mi

Top 65%
×6story building
+1ft-73ft

Overall

4246

Females

1586

F25-29

389

10.5M→12M

10.5 - 12.0 mi

Top 83%
×21story building
+280ft-26ft

Overall

5475

Females

2319

F25-29

555

12M→Finish

12.0 - 13.1 mi

Top 79%
×7story building
+14ft-89ft

Overall

5164

Females

2169

F25-29

531

Passing Analysis

Category:
Athletes Passed
584*
Passed By
1510
Net Change
-926
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#3802
2M → 4M134206-72#3802#3874
4M → 6M57*310-253#3874#4127
6M → 8M46*443-397#4127#4524
8M → 9.6M218102+116#4524#4408
9.6M → 10M3777-40#4408#4448
10M → 10.5M218+13#4448#4435
10.5M → 12M22*295-273#4435#4708
12M → Finish49*69-20#4708#4728
TOTALS584*1510-926

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

📊

Passing Visuals

Category:
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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Official Timing Data

The San Francisco Marathon

The San Francisco Marathon

Race Place Events

Race Place Events