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SF MARATHON 1ST HALF 2026

Allison Sun

Bib: 12947•F•Age: 29

Los Altos, 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
10:20/mi
20:41
→ flat
4M
10:35/mi
41:51
↑ 67↓ 69
6M
10:38/mi
1:03:07
↑ 1231.1%
8M
12:38/mi
1:28:23
↑ 166↓ 531.1%
9.6M
9:01/mi
1:42:48
↑ 68↓ 1931.5%
10M
22:22/mi
1:51:44
↓ 241.1%
10.5M
5:24/mi
1:54:26
↓ 732.7%
12M
16:55/mi
2:19:48
↑ 2803.2%
Finish· 13.11 mi
11:40/mi
2:32:44
↑ 14↓ 891.3%

The Course

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Half Splits

1st Half· via 6MFaster
Distance6.00 mi
Time1:03:07
Pace10:31 /mi
2nd Half
Distance7.11 mi
Time1:29:37
Pace12:36 /mi
📊Positive Split: 42.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi06:58:3020:4110:2020:41
10:20
-
4M
4.00 mi07:19:4041:5110:2821:10
10:35
+0:15
6M
6.00 mi07:40:561:03:0710:3121:16
10:38
+0:03
8M
8.00 mi08:06:121:28:2311:0325:16
12:38
+2:00
9.6M
9.60 mi08:20:371:42:4810:4214:25
9:01
-3:37
10M
10.00 mi08:29:331:51:4411:108:56
22:22
+13:21
10.5M
10.50 mi08:32:151:54:2610:542:42
5:24
-16:58
12M
12.00 mi08:57:372:19:4811:3925:22
16:55
+11:31
Finish
13.11 mi09:10:332:32:4411:3912:56
11:40
-5:15

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

5:24 /mi

Average Pace

11:39 /mi

Slowest Pace

22:22 /mi

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Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:42

2% of race

Time at Steady Pace

1:55:44

76% of race

Time at Slower Pace

34:18

22% of race

Average Pace: 11:39 /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 mi06:58:3020:4110:2020:41
10:20
#3641
4M
4.00 mi07:19:4041:5110:2821:10
10:35
#3645
6M
6.00 mi07:40:561:03:0710:3121:16
10:38
#3528
8M
8.00 mi08:06:121:28:2311:0325:16
12:38
#4016
9.6M
9.60 mi08:20:371:42:4810:4214:25
9:01
#3761
10M
10.00 mi08:29:331:51:4411:108:56
22:22
#3830
10.5M
10.50 mi08:32:151:54:2610:542:42
5:24
#3838
12M
12.00 mi08:57:372:19:4811:3925:22
16:55
#4052
Finish
13.11 mi09:10:332:32:4411:3912:56
11:40
#4097
Faster pace
Steady pace
Slower pace
Featured Segment

Garmin Challenge

Top 69%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

11:38

Segment Time

12:56/mi

Pace

0.90 mi

Distance

Overall

4506

Women

1768

Division

432

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF25-29Seg. OverallSeg. FemalesSeg. F25-29
2M2.00 mi2.00 mi364112453044804(Top 73%)1938(Top 66%)465(Top 69%)
4M4.00 mi2.00 mi3645-41237+8302+23672(Top 56%)1251(Top 43%)311(Top 46%)
6M6.00 mi2.00 mi3528+1171183+54296+63474(Top 53%)1158(Top 40%)291(Top 43%)
8M8.00 mi2.00 mi4016-4881391-208340-445132(Top 78%)1992(Top 68%)470(Top 70%)
9.6M9.60 mi1.60 mi3761+2551295+96330+102759(Top 42%)1005(Top 34%)250(Top 37%)
10M10.00 mi0.40 mi3830-691339-44340-104684(Top 71%)1862(Top 64%)449(Top 67%)
10.5M10.50 mi0.50 mi3838-81340-1341-14148(Top 63%)1535(Top 52%)373(Top 55%)
12M12.00 mi1.50 mi4052-2141465-125365-244804(Top 73%)1938(Top 66%)465(Top 69%)
Finish13.11 mi1.11 mi4097-451498-33370-54644(Top 71%)1866(Top 64%)463(Top 69%)

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 73%
~flat
+5ft-3ft

Overall

4804

Females

1938

F25-29

465

2M→4M

2.0 - 4.0 mi

Top 56%
×4story building
+67ft-69ft

Overall

3672

Females

1251

F25-29

311

4M→6M

4.0 - 6.0 mi

Top 53%
×9story building
+123ft-9ft

Overall

3474

Females

1158

F25-29

291

6M→8M

6.0 - 8.0 mi

Top 78%
×12story building
+166ft-53ft

Overall

5132

Females

1992

F25-29

471

8M→9.6M

8.0 - 9.6 mi

Top 42%
×13story building
+68ft-193ft

Overall

2759

Females

1005

F25-29

250

9.6M→10M

9.6 - 10.0 mi

Top 71%
×2story building
+0ft-24ft

Overall

4684

Females

1862

F25-29

449

10M→10.5M

10.0 - 10.5 mi

Top 63%
×6story building
+1ft-73ft

Overall

4148

Females

1535

F25-29

373

10.5M→12M

10.5 - 12.0 mi

Top 73%
×21story building
+280ft-26ft

Overall

4804

Females

1938

F25-29

465

12M→Finish

12.0 - 13.1 mi

Top 71%
×7story building
+14ft-89ft

Overall

4644

Females

1866

F25-29

463

Passing Analysis

Category:
Athletes Passed
768*
Passed By
1224
Net Change
-456
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#3641
2M → 4M164168-4#3641#3645
4M → 6M180*63+117#3645#3528
6M → 8M13*501-488#3528#4016
8M → 9.6M29338+255#4016#3761
9.6M → 10M34103-69#3761#3830
10M → 10.5M614-8#3830#3838
10.5M → 12M32*246-214#3838#4052
12M → Finish46*91-45#4052#4097
TOTALS768*1224-456

* 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