Charina Chou

Bib: 24188FAge: 42

SF, CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 3840
Top 35%
Gender (Female)
#0 / 1760
Top 24%
Masters (Masters Women)
#0 / 365
Top 18%
Division (F40-44)
#0 / 116
Top 23%
Race Day Weather
59°/49°F
scattered clouds

⏱️ Race Timeline

Course Elevation
9292 ft
×24story building
548 ft climb · 587 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
2M
8:27/mi
16:55
138680.7%
4M
8:39/mi
34:13
1631.4%
6M
11:13/mi
56:39
55830.3%
8M
7:20/mi
1:11:19
651510.8%
10M
9:50/mi
1:30:58
611741.1%
12M
10:23/mi
1:51:45
41530.1%
Finish· 13.11 mi
10:00/mi
2:02:50
→ flat

The Course

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Half Splits

1st Half· via 6MFaster
Distance6.00 mi
Time56:39
Pace9:27 /mi
2nd Half
Distance7.11 mi
Time1:06:11
Pace9:19 /mi
📊Positive Split: 16.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi08:58:5416:558:2716:55
8:27
-
4M
4.00 mi09:16:1234:138:3317:18
8:39
+0:12
6M
6.00 mi09:38:3856:399:2722:26
11:13
+2:34
8M
8.00 mi09:53:181:11:198:5514:40
7:20
-3:53
10M
10.00 mi10:12:571:30:589:0619:39
9:50
+2:30
12M
12.00 mi10:33:441:51:459:1920:47
10:23
+0:33
Finish
13.11 mi10:44:492:02:509:2211:05
10:00
-0:23

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

7:20 /mi

Average Pace

9:22 /mi

Slowest Pace

11:13 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

48:53

40% of race

Time at Steady Pace

51:31

42% of race

Time at Slower Pace

22:26

18% of race

Average Pace: 9:22 /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 mi08:58:5416:558:2716:55
8:27
#760
4M
4.00 mi09:16:1234:138:3317:18
8:39
#999
6M
6.00 mi09:38:3856:399:2722:26
11:13
#1137
8M
8.00 mi09:53:181:11:198:5514:40
7:20
#1246
10M
10.00 mi10:12:571:30:589:0619:39
9:50
#1280
12M
12.00 mi10:33:441:51:459:1920:47
10:23
#1341
Finish
13.11 mi10:44:492:02:509:2211:05
10:00
#1351
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
2M2.00 mi2.00 mi760173141587(Top 41%)543(Top 31%)37(Top 32%)
4M4.00 mi2.00 mi999-239275-10218-41350(Top 35%)413(Top 23%)29(Top 25%)
6M6.00 mi2.00 mi1137-138331-5624-61336(Top 35%)400(Top 23%)27(Top 23%)
8M8.00 mi2.00 mi1246-109373-4226-21657(Top 43%)543(Top 31%)34(Top 29%)
10M10.00 mi2.00 mi1280-34388-15261497(Top 39%)476(Top 27%)31(Top 27%)
12M12.00 mi2.00 mi1341-61413-2527-11587(Top 41%)543(Top 31%)37(Top 32%)
Finish13.11 mi1.11 mi1351-10420-7271561(Top 41%)537(Top 31%)36(Top 31%)

Segment Performance Analysis

10M→12M

0.0 - 2.0 mi

Top 41%
×9story building
+138ft-68ft

Overall

1587

Females

543

F40-44

37

2M→4M

2.0 - 4.0 mi

Top 35%
×13story building
+163ft-19ft

Overall

1350

Females

413

F40-44

30

4M→6M

4.0 - 6.0 mi

Top 35%
×4story building
+55ft-83ft

Overall

1336

Females

400

F40-44

28

6M→8M

6.0 - 8.0 mi

Top 43%
×10story building
+65ft-151ft

Overall

1657

Females

543

F40-44

35

8M→10M

8.0 - 10.0 mi

Top 39%
×10story building
+61ft-174ft

Overall

1497

Females

476

F40-44

31

10M→12M

10.0 - 12.0 mi

Top 41%
×3story building
+41ft-53ft

Overall

1587

Females

543

F40-44

37

12M→Finish

12.0 - 13.1 mi

Top 41%
×1human
+6ft-6ft

Overall

1561

Females

537

F40-44

36

Passing Analysis

Category:
Athletes Passed
67*
Passed By
658
Net Change
-591
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#760
2M4M11250-239#760#999
4M6M10148-138#999#1137
6M8M9118-109#1137#1246
8M10M14*48-34#1246#1280
10M12M970-61#1280#1341
12MFinish1424-10#1341#1351
TOTALS67*658-591

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

📊

Passing Visuals

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