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SF MARATHON 1ST HALF 2026

Anni Chai

Bib: 17525•F•Age: 26

Sunnyvale, CA

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

Start
0:00:00
Race begins
2M
22:29
Rank: #5112
Start → 2M
22:29 | 11:14/mi
4M
48:49
Rank: #5841 (-729)
2M → 4M
26:20 | 13:10/mi
6M
1:16:44
Rank: #6084 (-243)
4M → 6M
27:55 | 13:57/mi
8M
1:44:07
Rank: #6057 (+27)
6M → 8M
27:23 | 13:41/mi
9.6M
2:06:01
Rank: #6201 (-144)
8M → 9.6M
21:54 | 13:41/mi
10M
2:19:24
Rank: #6293 (-92)
9.6M → 10M
13:23 | 33:30/mi
10.5M
2:22:32
Rank: #6282 (+11)
10M → 10.5M
3:08 | 6:16/mi
12M
2:51:29
Rank: #6258 (+24)
10.5M → 12M
28:57 | 19:18/mi
Finish· 13.11 mi
3:06:49
Rank: #6238 (+20)
12M → Finish
15:20 | 13:49/mi

The Course

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Half Splits

1st Half· via 6MFaster
Distance6.00 mi
Time1:16:44
Pace12:47 /mi
2nd Half
Distance7.11 mi
Time1:50:05
Pace15:29 /mi
📊Positive Split: 43.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi07:09:3222:2911:1422:29
11:14
-
4M
4.00 mi07:35:5248:4912:1226:20
13:10
+1:56
6M
6.00 mi08:03:471:16:4412:4727:55
13:57
+0:47
8M
8.00 mi08:31:101:44:0713:0127:23
13:41
-0:16
9.6M
9.60 mi08:53:042:06:0113:0821:54
13:41
0:00
10M
10.00 mi09:06:272:19:2413:5613:23
33:30
+19:49
10.5M
10.50 mi09:09:352:22:3213:343:08
6:16
-27:14
12M
12.00 mi09:38:322:51:2914:1728:57
19:18
+13:02
Finish
13.11 mi09:53:523:06:4914:1515:20
13:49
-5:29

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

6:16 /mi

Average Pace

14:15 /mi

Slowest Pace

33:30 /mi

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Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:08

2% of race

Time at Steady Pace

2:21:21

76% of race

Time at Slower Pace

42:20

23% of race

Average Pace: 14:15 /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 mi07:09:3222:2911:1422:29
11:14
#5112
4M
4.00 mi07:35:5248:4912:1226:20
13:10
#5841
6M
6.00 mi08:03:471:16:4412:4727:55
13:57
#6084
8M
8.00 mi08:31:101:44:0713:0127:23
13:41
#6057
9.6M
9.60 mi08:53:042:06:0113:0821:54
13:41
#6201
10M
10.00 mi09:06:272:19:2413:5613:23
33:30
#6293
10.5M
10.50 mi09:09:352:22:3213:343:08
6:16
#6282
12M
12.00 mi09:38:322:51:2914:1728:57
19:18
#6258
Finish
13.11 mi09:53:523:06:4914:1515:20
13:49
#6238
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior
Featured Segment

Garmin Challenge

Top 98%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

16:31

Segment Time

18:21/mi

Pace

0.90 mi

Distance

Overall

6433

Women

2865

Division

661

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF25-29Seg. OverallSeg. FemalesSeg. F25-29
2M2.00 mi2.00 mi511220145005975(Top 91%)2599(Top 89%)622(Top 92%)
4M4.00 mi2.00 mi5841-7292438-424592-926190(Top 94%)2673(Top 91%)627(Top 93%)
6M6.00 mi2.00 mi6084-2432584-146613-216243(Top 95%)2696(Top 92%)633(Top 94%)
8M8.00 mi2.00 mi6057+272564+20612+15824(Top 89%)2425(Top 83%)566(Top 84%)
9.6M9.60 mi1.60 mi6201-1442667-103623-116428(Top 98%)2841(Top 97%)648(Top 96%)
10M10.00 mi0.40 mi6293-922736-69642-196534(Top 99%)2918(Top 100%)670(Top 99%)
10.5M10.50 mi0.50 mi6282+112730+6639+35681(Top 86%)2406(Top 82%)574(Top 85%)
12M12.00 mi1.50 mi6258+242721+9635+45975(Top 91%)2599(Top 89%)622(Top 92%)
Finish13.11 mi1.11 mi6238+202707+14637-25927(Top 90%)2584(Top 88%)622(Top 92%)

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 91%
~flat
+5ft-3ft

Overall

5975

Females

2599

F25-29

622

2M→4M

2.0 - 4.0 mi

Top 94%
×4stories
+67ft-69ft

Overall

6190

Females

2673

F25-29

629

4M→6M

4.0 - 6.0 mi

Top 95%
×9stories
+123ft-9ft

Overall

6243

Females

2696

F25-29

634

6M→8M

6.0 - 8.0 mi

Top 89%
×12stories
+166ft-53ft

Overall

5824

Females

2425

F25-29

567

8M→9.6M

8.0 - 9.6 mi

Top 98%
×13stories
+68ft-193ft

Overall

6428

Females

2841

F25-29

649

9.6M→10M

9.6 - 10.0 mi

Top 99%
×2stories
+0ft-24ft

Overall

6534

Females

2918

F25-29

671

10M→10.5M

10.0 - 10.5 mi

Top 86%
×6stories
+1ft-73ft

Overall

5681

Females

2406

F25-29

575

10.5M→12M

10.5 - 12.0 mi

Top 91%
×21stories
+280ft-26ft

Overall

5975

Females

2599

F25-29

622

12M→Finish

12.0 - 13.1 mi

Top 90%
×7stories
+14ft-89ft

Overall

5927

Females

2584

F25-29

622

Passing Analysis

Category:
Athletes Passed
223*
Passed By
1349
Net Change
-1126
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#5112
2M → 4M9738-729#5112#5841
4M → 6M28*271-243#5841#6084
6M → 8M87*60+27#6084#6057
8M → 9.6M13157-144#6057#6201
9.6M → 10M193-92#6201#6293
10M → 10.5M132+11#6293#6282
10.5M → 12M42*18+24#6282#6258
12M → Finish30*10+20#6258#6238
TOTALS223*1349-1126

* 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

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