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SF MARATHON 2ND HALF 2026

Alice Zheng

Bib: 24141•F•Age: 26

Foster City, CA

0:00
0:00
/ mi
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Overall
#0 / 3840
Top 36%
Gender (Female)
#0 / 1760
Top 24%
Division (F25-29)
#0 / 495
Top 24%
Race Day Weather
59°/49°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
2M
18:07
Rank: #1245
Start → 2M
9:03/mi
18:07 split
4M
35:09
Rank: #1236 (+9)
2M → 4M
8:31/mi
17:02 split
6M
57:53
Rank: #1313 (-77)
4M → 6M
11:22/mi
22:44 split
8M
1:12:27
Rank: #1354 (-41)
6M → 8M
7:17/mi
14:34 split
10M
1:32:28
Rank: #1409 (-55)
8M → 10M
10:01/mi
20:01 split
12M
1:52:46
Rank: #1392 (+17)
10M → 12M
10:09/mi
20:18 split
Finish· 13.11 mi
2:03:20
Rank: #1370 (+22)
12M → Finish
9:32/mi
10:34 split

The Course

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Half Splits

1st Half· via 6MFaster
Distance6.00 mi
Time57:53
Pace9:39 /mi
2nd Half
Distance7.11 mi
Time1:05:27
Pace9:12 /mi
📊Positive Split: 13.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi08:56:4018:079:0318:07
9:03
-
4M
4.00 mi09:13:4235:098:4717:02
8:31
-0:32
6M
6.00 mi09:36:2657:539:3922:44
11:22
+2:51
8M
8.00 mi09:51:001:12:279:0314:34
7:17
-4:05
10M
10.00 mi10:11:011:32:289:1520:01
10:01
+2:44
12M
12.00 mi10:31:191:52:469:2420:18
10:09
+0:08
Finish
13.11 mi10:41:532:03:209:2410:34
9:32
-0:37

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

7:17 /mi

Average Pace

9:24 /mi

Slowest Pace

11:22 /mi

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Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

31:36

26% of race

Time at Steady Pace

48:42

39% of race

Time at Slower Pace

43:02

35% of race

Average Pace: 9:24 /mi

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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 mi08:56:4018:079:0318:07
9:03
#1245
4M
4.00 mi09:13:4235:098:4717:02
8:31
#1236
6M
6.00 mi09:36:2657:539:3922:44
11:22
#1313
8M
8.00 mi09:51:001:12:279:0314:34
7:17
#1354
10M
10.00 mi10:11:011:32:289:1520:01
10:01
#1409
12M
12.00 mi10:31:191:52:469:2420:18
10:09
#1392
Finish
13.11 mi10:41:532:03:209:2410:34
9:32
#1370
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF25-29Seg. OverallSeg. FemalesSeg. F25-29
2M2.00 mi2.00 mi12453571031437(Top 37%)463(Top 26%)129(Top 26%)
4M4.00 mi2.00 mi1236+9359-299+41243(Top 32%)373(Top 21%)101(Top 20%)
6M6.00 mi2.00 mi1313-77393-34109-101454(Top 38%)445(Top 25%)121(Top 24%)
8M8.00 mi2.00 mi1354-41409-16115-61609(Top 42%)516(Top 29%)143(Top 29%)
10M10.00 mi2.00 mi1409-55430-21120-51603(Top 42%)525(Top 30%)149(Top 30%)
12M12.00 mi2.00 mi1392+17434-4121-11437(Top 37%)463(Top 26%)129(Top 26%)
Finish13.11 mi1.11 mi1370+22430+4119+21300(Top 34%)413(Top 23%)120(Top 24%)

Segment Performance Analysis

10M→12M

0.0 - 2.0 mi

Top 37%
×9stories
+138ft-68ft

Overall

1437

Females

463

F25-29

130

2M→4M

2.0 - 4.0 mi

Top 32%
×13stories
+163ft-19ft

Overall

1243

Females

373

F25-29

101

4M→6M

4.0 - 6.0 mi

Top 38%
×4stories
+55ft-83ft

Overall

1454

Females

445

F25-29

122

6M→8M

6.0 - 8.0 mi

Top 42%
×10stories
+65ft-151ft

Overall

1609

Females

516

F25-29

143

8M→10M

8.0 - 10.0 mi

Top 42%
×10stories
+61ft-174ft

Overall

1603

Females

525

F25-29

150

10M→12M

10.0 - 12.0 mi

Top 37%
×3stories
+41ft-53ft

Overall

1437

Females

463

F25-29

130

12M→Finish

12.0 - 13.1 mi

Top 34%
×1human
+6ft-6ft

Overall

1300

Females

413

F25-29

120

Passing Analysis

Category:
Athletes Passed
217*
Passed By
342
Net Change
-125
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#1245
2M → 4M8172+9#1245#1236
4M → 6M1895-77#1236#1313
6M → 8M1455-41#1313#1354
8M → 10M21*76-55#1354#1409
10M → 12M5538+17#1409#1392
12M → Finish28*6+22#1392#1370
TOTALS217*342-125

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

📊

Passing Visuals

Category:
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🔥Passing Intensity

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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