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SF MARATHON 1ST HALF 2026

Chia-Lin Cheng

Sunnyvale, CA

Bib: 16812 F 25

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

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
2M
10:30/mi
21:01
→ flat
4M
11:39/mi
44:19
↑ 67↓ 69
6M
12:00/mi
1:08:20
↑ 123
8M
12:48/mi
1:33:56
↑ 166↓ 53
9.6M
9:06/mi
1:48:29
↑ 68↓ 193
10M
23:14/mi
1:57:46
↓ 24
10.5M
5:52/mi
2:00:42
↓ 73
12M
15:19/mi
2:23:41
↑ 280
Finish· 13.11 mi
9:59/mi
2:34:45
↑ 14↓ 89
Course Elevation
10–277 ft
≈
×22story building
•▲ 774 ft climb · ▼ 557 ft descent

The Course

Half Splits

1st Half· via 6M
1:08:2011:23 /mi⚡ faster
2nd Half
1:26:2512:09 /mi+26.5%
Positive split — 26.5% slower in the second half
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Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointTimeAvg PaceSegment LengthSegment TimeSegment PaceTrendDiff
2M
21:0110:302.00 mi21:01
10:30
-
4M
44:1911:052.00 mi23:18
11:39
+1:09
6M
1:08:2011:232.00 mi24:01
12:00
+0:21
8M
1:33:5611:442.00 mi25:36
12:48
+0:48
9.6M
1:48:2911:181.60 mi14:33
9:06
-3:42
10M
1:57:4611:470.40 mi9:17
23:14
+14:08
10.5M
2:00:4211:300.50 mi2:56
5:52
-17:22
12M
2:23:4111:581.50 mi22:59
15:19
+9:27
Finish(13.11 mi)
2:34:4511:481.11 mi11:04
9:59
-5:20
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

5:52 /mi

Average Pace

11:48 /mi

Slowest Pace

23:14 /mi

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Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

17:29

11% of race

Time at Steady Pace

1:45:00

68% of race

Time at Slower Pace

32:16

21% of race

Average Pace: 11:48 /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 76%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

12:13

Segment Time

13:35/mi

Pace

0.90 mi

Distance

Overall

5010

Women

2028

Division

492

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointSeg. DistOverallFemalesF25-29Seg. OverallSeg. FemalesSeg. F25-29
2M2.00 mi3945137633637701389341
4M2.00 mi4521-5761670-294422-8650531981488
6M2.00 mi4751-2301798-128441-1950851983486
8M2.00 mi4934-1831892-94469-2852702080487
9.6M1.60 mi4586+3481716+176422+4728681049261
10M0.40 mi4630-441749-33430-850542053489
10.5M0.50 mi4658-281758-9432-251152080513
12M1.50 mi4450+2081671+87412+2037701389341
Finish(13.11 mi)1.11 mi4273+1771585+86397+152840945258

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 57%
~flat
+5ft-3ft

Overall

3770

Females

1389

F25-29

341

2M→4M

2.0 - 4.0 mi

Top 77%
×4story building
+67ft-69ft

Overall

5053

Females

1981

F25-29

489

4M→6M

4.0 - 6.0 mi

Top 77%
×9story building
+123ft-9ft

Overall

5085

Females

1983

F25-29

486

6M→8M

6.0 - 8.0 mi

Top 80%
×12story building
+166ft-53ft

Overall

5270

Females

2080

F25-29

488

8M→9.6M

8.0 - 9.6 mi

Top 44%
×13story building
+68ft-193ft

Overall

2868

Females

1049

F25-29

261

9.6M→10M

9.6 - 10.0 mi

Top 77%
×2story building
+0ft-24ft

Overall

5054

Females

2053

F25-29

490

10M→10.5M

10.0 - 10.5 mi

Top 78%
×6story building
+1ft-73ft

Overall

5115

Females

2080

F25-29

514

10.5M→12M

10.5 - 12.0 mi

Top 57%
×21story building
+280ft-26ft

Overall

3770

Females

1389

F25-29

341

12M→Finish

12.0 - 13.1 mi

Top 43%
×7story building
+14ft-89ft

Overall

2840

Females

945

F25-29

258

Passing Analysis

Category:
▼Net Change
0
0 passed by0* passed
SegmentMovementRank
Start → 2M-#3945
2M → 4M
62751-576
#3945 → #4521
4M → 6M
30171*-230
#4521 → #4751
6M → 8M
25168*-183
#4751 → #4934
8M → 9.6M
21369+348
#4934 → #4586
9.6M → 10M
8339-44
#4586 → #4630
10M → 10.5M
368-28
#4630 → #4658
10.5M → 12M
38246*+208
#4658 → #4450
12M → Finish
1178*+177
#4450 → #4273
TOTALS
13581030*-328
#3945 → #4273

* 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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Questions or issues regarding timing data?

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Official Timing Data

The San Francisco Marathon

The San Francisco Marathon

Race Place Events

Race Place Events