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SF MARATHON 1ST HALF 2026

Peiyi Cao

Burlingame, CA

Bib: 16768 F 31

0:00
0:00
/ mi
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Overall
#0 / 6575
Top 41%
Gender (Female)
#0 / 2930
Top 28%
Division (F30-34)
#0 / 651
Top 28%
Race Day Weather
59°/49°F
scattered clouds

⏱️ Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
10 ft elev
2M
9:52/mi
19:45
→ flat
12 ft elev
4M
10:02/mi
39:48
↑ 67↓ 69
10 ft elev
6M
10:18/mi
1:00:25
↑ 1231.1%
126 ft elev
8M
9:36/mi
1:19:38
↑ 166↓ 531.1%
246 ft elev
9.6M
9:36/mi
1:35:00
↑ 68↓ 1931.5%
126 ft elev
10M
19:16/mi
1:42:42
↓ 241.1%
90 ft elev
10.5M
4:32/mi
1:44:58
↓ 732.7%
18 ft elev
12M
14:13/mi
2:06:17
↑ 2803.2%
272 ft elev
Finish· 13.11 mi
9:51/mi
2:17:13
↑ 14↓ 891.3%
205 ft elev
Course Elevation
10–277 ft
≈
×22story building
•▲ 774 ft climb · ▼ 557 ft descent

The Course

Half Splits

1st Half· via 6M
1:00:2510:04 /mi⚡ faster
2nd Half
1:16:4810:48 /mi+27.1%
Positive split — 27.1% slower in the second half
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Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi07:00:4119:459:5219:45
9:52
-
4M
4.00 mi07:20:4439:489:5720:03
10:02
+0:10
6M
6.00 mi07:41:211:00:2510:0420:37
10:18
+0:16
8M
8.00 mi08:00:341:19:389:5719:13
9:36
-0:42
9.6M
9.60 mi08:15:561:35:009:5415:22
9:36
0:00
10M
10.00 mi08:23:381:42:4210:167:42
19:16
+9:40
10.5M
10.50 mi08:25:541:44:5810:002:16
4:32
-14:44
12M
12.00 mi08:47:132:06:1710:3121:19
14:13
+9:41
Finish
13.11 mi08:58:092:17:1310:2810:56
9:51
-4:22

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

4:32 /mi

Average Pace

10:28 /mi

Slowest Pace

19:16 /mi

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Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:16

2% of race

Time at Steady Pace

1:45:56

77% of race

Time at Slower Pace

29:01

21% of race

Average Pace: 10:28 /mi

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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 mi07:00:4119:459:5219:45
9:52
#2821
4M
4.00 mi07:20:4439:489:5720:03
10:02
#2782
6M
6.00 mi07:41:211:00:2510:0420:37
10:18
#2869
8M
8.00 mi08:00:341:19:389:5719:13
9:36
#2580
9.6M
9.60 mi08:15:561:35:009:5415:22
9:36
#2692
10M
10.00 mi08:23:381:42:4210:167:42
19:16
#2712
10.5M
10.50 mi08:25:541:44:5810:002:16
4:32
#2680
12M
12.00 mi08:47:132:06:1710:3121:19
14:13
#2690
Finish
13.11 mi08:58:092:17:1310:2810:56
9:51
#2663
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior
Featured Segment

Garmin Challenge

Top 42%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

9:58

Segment Time

11:05/mi

Pace

0.90 mi

Distance

Overall

2785

Women

897

Division

204

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF30-34Seg. OverallSeg. FemalesSeg. F30-34
2M2.00 mi2.00 mi28218652002917976214
4M4.00 mi2.00 mi2782+39860+5194+62835872197
6M6.00 mi2.00 mi2869-87887-27197-33041949207
8M8.00 mi2.00 mi2580+289744+143164+331898461110
9.6M9.60 mi1.60 mi2692-112813-69178-1434991339306
10M10.00 mi0.40 mi2712-20827-14186-831081043228
10.5M10.50 mi0.50 mi2680+32811+16183+31940518122
12M12.00 mi1.50 mi2690-10823-121832917976214
Finish13.11 mi1.11 mi2663+27813+10181+22693867188

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 44%
~flat
+5ft-3ft

Overall

2917

Females

976

F30-34

215

2M→4M

2.0 - 4.0 mi

Top 43%
×4story building
+67ft-69ft

Overall

2835

Females

872

F30-34

200

4M→6M

4.0 - 6.0 mi

Top 46%
×9story building
+123ft-9ft

Overall

3041

Females

949

F30-34

209

6M→8M

6.0 - 8.0 mi

Top 29%
×12story building
+166ft-53ft

Overall

1898

Females

461

F30-34

112

8M→9.6M

8.0 - 9.6 mi

Top 53%
×13story building
+68ft-193ft

Overall

3499

Females

1339

F30-34

308

9.6M→10M

9.6 - 10.0 mi

Top 47%
×2story building
+0ft-24ft

Overall

3108

Females

1043

F30-34

230

10M→10.5M

10.0 - 10.5 mi

Top 30%
×6story building
+1ft-73ft

Overall

1940

Females

518

F30-34

122

10.5M→12M

10.5 - 12.0 mi

Top 44%
×21story building
+280ft-26ft

Overall

2917

Females

976

F30-34

215

12M→Finish

12.0 - 13.1 mi

Top 41%
×7story building
+14ft-89ft

Overall

2693

Females

867

F30-34

188

Passing Analysis

Category:
Athletes Passed
794*
Passed By
636
Net Change
+158
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#2821
2M → 4M170131+39#2821#2782
4M → 6M74161-87#2782#2869
6M → 8M313*24+289#2869#2580
8M → 9.6M46158-112#2580#2692
9.6M → 10M3454-20#2692#2712
10M → 10.5M320+32#2712#2680
10.5M → 12M7585-10#2680#2690
12M → Finish50*23+27#2690#2663
TOTALS794*636+158

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

Passing Charts

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