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SF MARATHON 1ST HALF 2026

Kei Chua

Somerville, MA

Bib: 20800 F 25

0:00
0:00
/ mi
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Overall
#0 / 6575
Top 43%
Gender (Female)
#0 / 2930
Top 30%
Division (F25-29)
#0 / 674
Top 33%
Race Day Weather
59°/49°F
scattered clouds

Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
2M
10:15/mi
20:31
→ flat
4M
10:36/mi
41:43
↑ 67↓ 69
6M
10:32/mi
1:02:48
↑ 123
8M
11:26/mi
1:25:41
↑ 166↓ 53
9.6M
8:02/mi
1:38:32
↑ 68↓ 193
10M
18:41/mi
1:46:00
↓ 24
10.5M
4:46/mi
1:48:23
↓ 73
12M
13:08/mi
2:08:05
↑ 280
Finish· 13.11 mi
9:44/mi
2:18:53
↑ 14↓ 89
Course Elevation
10–277 ft
≈
×22story building
•▲ 774 ft climb · ▼ 557 ft descent

The Course

Half Splits

1st Half· via 6M
1:02:4810:28 /mi⚡ faster
2nd Half
1:16:0510:42 /mi+21.2%
Positive split — 21.2% slower in the second half
Is this your race?

Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointTimeAvg PaceSegment LengthSegment TimeSegment PaceTrendDiff
2M
20:3110:152.00 mi20:31
10:15
-
4M
41:4310:262.00 mi21:12
10:36
+0:21
6M
1:02:4810:282.00 mi21:05
10:32
-0:04
8M
1:25:4110:432.00 mi22:53
11:26
+0:54
9.6M
1:38:3210:161.60 mi12:51
8:02
-3:24
10M
1:46:0010:360.40 mi7:28
18:41
+10:39
10.5M
1:48:2310:190.50 mi2:23
4:46
-13:55
12M
2:08:0510:401.50 mi19:42
13:08
+8:22
Finish(13.11 mi)
2:18:5310:361.11 mi10:48
9:44
-3:24
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

4:46 /mi

Average Pace

10:36 /mi

Slowest Pace

18:41 /mi

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Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

15:14

11% of race

Time at Steady Pace

1:36:29

69% of race

Time at Slower Pace

27:10

20% of race

Average Pace: 10:36 /mi

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Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

Heatmap

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0mi3.3mi6.6mi9.8mi13.1mi
Pace:
Faster
Steady
Slower
Featured Segment

Garmin Challenge

Top 40%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

9:51

Segment Time

10:57/mi

Pace

0.90 mi

Distance

Overall

2661

Women

835

Division

211

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointSeg. DistOverallFemalesF25-29Seg. OverallSeg. FemalesSeg. F25-29
2M2.00 mi347811702822038592154
4M2.00 mi3583-1051207-37288-636911262315
6M2.00 mi3433+1501144+63284+433761116279
8M2.00 mi3581-1481200-56294-1040081397348
9.6M1.60 mi3206+3751026+174251+431578525134
10M0.40 mi3135+711006+20248+32806919228
10.5M0.50 mi3111+24999+7245+32540788194
12M1.50 mi2898+213914+85224+212038592154
Finish(13.11 mi)1.11 mi2838+60890+24221+32539802224

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 31%
~flat
+5ft-3ft

Overall

2038

Females

592

F25-29

154

2M→4M

2.0 - 4.0 mi

Top 56%
×4story building
+67ft-69ft

Overall

3691

Females

1262

F25-29

315

4M→6M

4.0 - 6.0 mi

Top 51%
×9story building
+123ft-9ft

Overall

3376

Females

1116

F25-29

279

6M→8M

6.0 - 8.0 mi

Top 61%
×12story building
+166ft-53ft

Overall

4008

Females

1397

F25-29

348

8M→9.6M

8.0 - 9.6 mi

Top 24%
×13story building
+68ft-193ft

Overall

1578

Females

525

F25-29

134

9.6M→10M

9.6 - 10.0 mi

Top 43%
×2story building
+0ft-24ft

Overall

2806

Females

919

F25-29

228

10M→10.5M

10.0 - 10.5 mi

Top 39%
×6story building
+1ft-73ft

Overall

2540

Females

788

F25-29

194

10.5M→12M

10.5 - 12.0 mi

Top 31%
×21story building
+280ft-26ft

Overall

2038

Females

592

F25-29

154

12M→Finish

12.0 - 13.1 mi

Top 39%
×7story building
+14ft-89ft

Overall

2539

Females

802

F25-29

224

Passing Analysis

Category:
▲Net Change
+0
0 passed by0* passed
SegmentMovementRank
Start → 2M-#3478
2M → 4M
240135-105
#3478 → #3583
4M → 6M
50200+150
#3583 → #3433
6M → 8M
23183*-148
#3433 → #3581
8M → 9.6M
9384+375
#3581 → #3206
9.6M → 10M
778+71
#3206 → #3135
10M → 10.5M
226+24
#3135 → #3111
10.5M → 12M
17230+213
#3111 → #2898
12M → Finish
2282*+60
#2898 → #2838
TOTALS
5781218*+640
#3478 → #2838

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

Passing Visualized

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

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