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SF MARATHON 2ND HALF 2026

Katherine Chu

Hillsborough, CA

Bib: 22318 F 29

0:00
0:00
/ mi
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Overall
#0 / 3840
Top 3%
Gender (Female)
#0 / 1760
Top 1.0%
Division (F25-29)
#0 / 495
Top 1%
Race Day Weather
59°/49°F
scattered clouds

Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Mile 5
Start
0:00
Race begins
2M
6:47/mi
13:34
↑ 138↓ 68
4M
6:12/mi
25:58
↑ 163
6M
6:49/mi
39:36
↑ 55↓ 83
8M
6:49/mi
53:14
↑ 65↓ 151
10M
7:13/mi
1:07:39
↑ 61↓ 174
12M
7:08/mi
1:21:55
↑ 41↓ 53
Finish· 13.11 mi
6:57/mi
1:29:38
→ flat
Course Elevation
548ft
Total climb
283ft
Range
9 to 292 ft
587ft
Total descent
About the height of two Statues of Liberty

The Course

Half Splits

1st Half· via 6M
39:366:36 /mi⚡ faster
2nd Half
50:027:02 /mi+26.3%
Positive split — 26.3% slower in the second half
AI Race Performance Report

Katherine's race, broken down like a coach

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Checkpoint Splits

CheckpointTimeAvg PaceSegment LengthSegment TimeSegment PaceTrendDiff
2M
13:346:472.00 mi13:34
6:47
-
4M
25:586:302.00 mi12:24
6:12
-0:35
6M
39:366:362.00 mi13:38
6:49
+0:37
8M
53:146:392.00 mi13:38
6:49
0:00
10M
1:07:396:462.00 mi14:25
7:13
+0:24
12M
1:21:556:502.00 mi14:16
7:08
-0:05
Finish(13.11 mi)
1:29:386:501.11 mi7:43
6:57
-0:11
Trend:
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior
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Public Race Data

The San Francisco Marathon

The San Francisco Marathon