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SF MARATHON 1ST HALF 2026

Pei Jiun Cheng

Bib: 18820•F•Age: 32

Alameda, CA

0:00
0:00
/ mi
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Overall
#0 / 6575
Gender (Female)
#0 / 2930
Top 47%
Division (F30-34)
#0 / 651
Top 48%
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
11:34/mi
23:09
→ flat
4M
11:35/mi
46:19
↑ 67↓ 69
6M
11:06/mi
1:08:32
↑ 1231.1%
8M
12:13/mi
1:32:58
↑ 166↓ 531.1%
9.6M
8:40/mi
1:46:50
↑ 68↓ 1931.5%
10M
20:44/mi
1:55:07
↓ 241.1%
10.5M
5:30/mi
1:57:52
↓ 732.7%
12M
14:13/mi
2:19:11
↑ 2803.2%
Finish· 13.11 mi
9:56/mi
2:30:12
↑ 14↓ 891.3%

The Course

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Half Splits

1st Half· via 6MFaster
Distance6.00 mi
Time1:08:32
Pace11:25 /mi
2nd Half
Distance7.11 mi
Time1:21:40
Pace11:29 /mi
📊Positive Split: 19.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi07:12:2523:0911:3423:09
11:34
-
4M
4.00 mi07:35:3546:1911:3523:10
11:35
+0:01
6M
6.00 mi07:57:481:08:3211:2522:13
11:06
-0:29
8M
8.00 mi08:22:141:32:5811:3724:26
12:13
+1:07
9.6M
9.60 mi08:36:061:46:5011:0813:52
8:40
-3:33
10M
10.00 mi08:44:231:55:0711:318:17
20:44
+12:04
10.5M
10.50 mi08:47:081:57:5211:142:45
5:30
-15:14
12M
12.00 mi09:08:272:19:1111:3621:19
14:13
+8:43
Finish
13.11 mi09:19:282:30:1211:2711:01
9:56
-4:17

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

5:30 /mi

Average Pace

11:27 /mi

Slowest Pace

20:44 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

16:37

11% of race

Time at Steady Pace

1:43:59

69% of race

Time at Slower Pace

29:36

20% of race

Average Pace: 11:27 /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 mi07:12:2523:0911:3423:09
11:34
#5488
4M
4.00 mi07:35:3546:1911:3523:10
11:35
#5271
6M
6.00 mi07:57:481:08:3211:2522:13
11:06
#4800
8M
8.00 mi08:22:141:32:5811:3724:26
12:13
#4792
9.6M
9.60 mi08:36:061:46:5011:0813:52
8:40
#4333
10M
10.00 mi08:44:231:55:0711:318:17
20:44
#4267
10.5M
10.50 mi08:47:081:57:5211:142:45
5:30
#4267
12M
12.00 mi09:08:272:19:1111:3621:19
14:13
#3972
Finish
13.11 mi09:19:282:30:1211:2711:01
9:56
#3864
Faster pace
Steady pace
Slower pace
Featured Segment

Garmin Challenge

Top 60%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

11:02

Segment Time

12:16/mi

Pace

0.90 mi

Distance

Overall

3919

Women

1433

Division

332

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF30-34Seg. OverallSeg. FemalesSeg. F30-34
2M2.00 mi2.00 mi548822355052922(Top 44%)978(Top 33%)216(Top 33%)
4M4.00 mi2.00 mi5271+2172091+144488+174960(Top 75%)1933(Top 66%)453(Top 70%)
6M6.00 mi2.00 mi4800+4711827+264426+624025(Top 61%)1429(Top 49%)336(Top 52%)
8M8.00 mi2.00 mi4792+81804+23418+84780(Top 73%)1790(Top 61%)417(Top 64%)
9.6M9.60 mi1.60 mi4333+4591584+220375+432325(Top 35%)804(Top 27%)170(Top 26%)
10M10.00 mi0.40 mi4267+661561+23371+43879(Top 59%)1421(Top 48%)321(Top 49%)
10.5M10.50 mi0.50 mi42671560+1369+24385(Top 67%)1662(Top 57%)379(Top 58%)
12M12.00 mi1.50 mi3972+2951419+141327+422922(Top 44%)978(Top 33%)216(Top 33%)
Finish13.11 mi1.11 mi3864+1081365+54311+162783(Top 42%)914(Top 31%)198(Top 30%)

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 44%
~flat
+5ft-3ft

Overall

2922

Females

978

F30-34

217

2M→4M

2.0 - 4.0 mi

Top 75%
×4story building
+67ft-69ft

Overall

4960

Females

1933

F30-34

456

4M→6M

4.0 - 6.0 mi

Top 61%
×9story building
+123ft-9ft

Overall

4025

Females

1429

F30-34

338

6M→8M

6.0 - 8.0 mi

Top 73%
×12story building
+166ft-53ft

Overall

4780

Females

1790

F30-34

419

8M→9.6M

8.0 - 9.6 mi

Top 35%
×13story building
+68ft-193ft

Overall

2325

Females

804

F30-34

171

9.6M→10M

9.6 - 10.0 mi

Top 59%
×2story building
+0ft-24ft

Overall

3879

Females

1421

F30-34

323

10M→10.5M

10.0 - 10.5 mi

Top 67%
×6story building
+1ft-73ft

Overall

4385

Females

1662

F30-34

381

10.5M→12M

10.5 - 12.0 mi

Top 44%
×21story building
+280ft-26ft

Overall

2922

Females

978

F30-34

217

12M→Finish

12.0 - 13.1 mi

Top 42%
×7story building
+14ft-89ft

Overall

2783

Females

914

F30-34

198

Passing Analysis

Category:
Athletes Passed
1892*
Passed By
268
Net Change
+1624
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#5488
2M → 4M26649+217#5488#5271
4M → 6M482*11+471#5271#4800
6M → 8M158*150+8#4800#4792
8M → 9.6M4667+459#4792#4333
9.6M → 10M8519+66#4333#4267
10M → 10.5M14140#4267#4267
10.5M → 12M310*15+295#4267#3972
12M → Finish111*3+108#3972#3864
TOTALS1892*268+1624

* 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