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SF MARATHON 1ST HALF 2026

Aditi Chatterjee

Santa Clara, CA

Bib: 15350 F 23

0:00
0:00
/ mi
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Overall
#0 / 6575
Gender (Female)
#0 / 2930
F20-29
#0 / 353
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
11:12/mi
22:25
→ flat
4M
11:56/mi
46:17
↑ 67↓ 69
6M
12:22/mi
1:11:02
↑ 123
8M
14:41/mi
1:40:24
↑ 166↓ 53
9.6M
10:16/mi
1:56:49
↑ 68↓ 193
10.26M
16:33/mi
2:07:44
↓ 114
10.5M
16:11/mi
2:11:37
→ flat
12M
20:48/mi
2:42:49
↑ 280
Finish· 13.11 mi
15:42/mi
3:00:14
↑ 14↓ 89
Course Elevation
10–277 ft
≈
×22story building
•▲ 774 ft climb · ▼ 557 ft descent

The Course

Half Splits

1st Half· via 6M
1:11:0211:50 /mi⚡ faster
2nd Half
1:49:1215:22 /mi+53.7%
Positive split — 53.7% 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
22:2511:122.00 mi22:25
11:12
-
4M
46:1711:342.00 mi23:52
11:56
+0:44
6M
1:11:0211:502.00 mi24:45
12:22
+0:26
8M
1:40:2412:332.00 mi29:22
14:41
+2:19
9.6M
1:56:4912:101.60 mi16:25
10:16
-4:25
10.26M
2:07:4412:270.66 mi10:55
16:33
+6:17
10.5M
2:11:3712:320.24 mi3:53
16:11
-0:22
12M
2:42:4913:341.50 mi31:12
20:48
+4:37
Finish(13.11 mi)
3:00:1413:451.11 mi17:25
15:42
-5:06
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

10:16 /mi

Average Pace

13:45 /mi

Slowest Pace

20:48 /mi

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Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

1:27:27

49% of race

Time at Steady Pace

50:40

28% of race

Time at Slower Pace

42:07

23% of race

Average Pace: 13:45 /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 94%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

14:48

Segment Time

16:27/mi

Pace

0.90 mi

Distance

Overall

6178

Women

2719

Division

342

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointSeg. DistOverallFemalesF20-29Seg. OverallSeg. FemalesSeg. F20-29
2M2.00 mi5050198326162852785345
4M2.00 mi5261-2112085-102274-1353762170286
6M2.00 mi5301-402106-21278-454302191289
8M2.00 mi5739-4382367-261311-3361812655335
9.6M1.60 mi5557+1822266+101297+1443161717223
10.26M0.66 mi5665-1082333-67302-560702651333
10.5M0.24 mi5726-612376-43308-664232855352
12M1.50 mi5958-2322528-152323-1562852785345
Finish(13.11 mi)1.11 mi6054-962592-64333-1062992782342

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 96%
~flat
+5ft-3ft

Overall

6285

Females

2785

F20-24

345

2M→4M

2.0 - 4.0 mi

Top 82%
×4story building
+67ft-69ft

Overall

5376

Females

2170

F20-24

287

4M→6M

4.0 - 6.0 mi

Top 83%
×9story building
+123ft-9ft

Overall

5430

Females

2191

F20-24

290

6M→8M

6.0 - 8.0 mi

Top 94%
×12story building
+166ft-53ft

Overall

6181

Females

2655

F20-24

335

8M→9.6M

8.0 - 9.6 mi

Top 66%
×13story building
+68ft-193ft

Overall

4316

Females

1717

F20-24

223

9.6M→10.26M

9.6 - 10.3 mi

Top 92%
×9story building
+0ft-114ft

Overall

6070

Females

2651

F20-24

333

10.26M→10.5M

10.3 - 10.5 mi

Top 98%
~flat
+1ft-0ft

Overall

6423

Females

2855

F20-24

352

10.5M→12M

10.5 - 12.0 mi

Top 96%
×21story building
+280ft-26ft

Overall

6285

Females

2785

F20-24

345

12M→Finish

12.0 - 13.1 mi

Top 96%
×7story building
+14ft-89ft

Overall

6299

Females

2782

F20-24

342

Passing Analysis

Category:
▼Net Change
0
0 passed by0* passed
SegmentMovementRank
Start → 2M-#5050
2M → 4M
313102-211
#5050 → #5261
4M → 6M
149109*-40
#5261 → #5301
6M → 8M
45214*-438
#5301 → #5739
8M → 9.6M
34216+182
#5739 → #5557
9.6M → 10.26M
1157-108
#5557 → #5665
10.26M → 10.5M
610-61
#5665 → #5726
10.5M → 12M
24513*-232
#5726 → #5958
12M → Finish
11216*-96
#5958 → #6054
TOTALS
1481477*-1004
#5050 → #6054

* 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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