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BOSTON MARATHON 2023

Kerry Chen

Bib: 31003•F

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Division (F18-39)
#0 / 4884
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
32:16
Rank: #24444
Start → 5K
32:16 | 10:23/mi
10K· 6.21 mi
1:03:51
Rank: #24221 (+223)
5K → 10K
31:35 | 10:10/mi
15K· 9.32 mi
1:35:39
Rank: #24138 (+83)
10K → 15K
31:48 | 10:14/mi
20K· 12.43 mi
2:09:29
Rank: #24267 (-129)
15K → 20K
33:50 | 10:53/mi
Half· 13.11 mi
2:17:09
Rank: #24343 (-76)
20K → Half
7:40 | 11:14/mi
25K· 15.53 mi
2:42:30
Rank: #24098 (+245)
Half → 25K
25:21 | 10:27/mi
30K· 18.64 mi
3:15:50
Rank: #23829 (+269)
25K → 30K
33:20 | 10:44/mi
20M
3:30:21
Rank: #23683 (+146)
30K → 20M
14:31 | 10:41/mi
21M
3:41:39
Rank: #23586 (+97)
20M → 21M
11:18 | 11:18/mi
35K· 21.75 mi
3:49:48
Rank: #23571 (+15)
21M → 35K
8:09 | 10:54/mi
23M
4:03:03
Rank: #23483 (+88)
35K → 23M
13:15 | 10:35/mi
24M
4:13:38
Rank: #23439 (+44)
23M → 24M
10:35 | 10:35/mi
40K· 24.85 mi
4:22:37
Rank: #23352 (+87)
24M → 40K
8:59 | 10:30/mi
25.2M
4:26:23
Rank: #23306 (+46)
40K → 25.2M
3:46 | 10:55/mi
Finish· 26.22 mi
4:36:29
Rank: #23251 (+55)
25.2M → Finish
10:06 | 9:55/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:17:09
Pace10:28 /mi
2nd Half
Distance13.11 mi
Time2:19:20
Pace10:38 /mi
📊Positive Split: 1.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:52:3932:1610:2332:16
10:23
-
10K
6.21 mi12:24:141:03:5110:1731:35
10:10
-0:13
15K
9.32 mi12:56:021:35:3910:1631:48
10:14
+0:04
20K
12.43 mi13:29:522:09:2910:2533:50
10:53
+0:39
Half
13.11 mi13:37:322:17:0910:287:40
11:14
+0:21
25K
15.53 mi14:02:532:42:3010:2825:21
10:27
-0:47
30K
18.64 mi14:36:133:15:5010:3033:20
10:44
+0:17
20M
20.00 mi14:50:443:30:2110:3114:31
10:41
-0:03
21M
21.00 mi15:02:023:41:3910:3311:18
11:18
+0:37
35K
21.75 mi15:10:113:49:4810:348:09
10:54
-0:24
23M
23.00 mi15:23:264:03:0310:3413:15
10:35
-0:19
24M
24.00 mi15:34:014:13:3810:3410:35
10:35
0:00
40K
24.85 mi15:43:004:22:3710:348:59
10:30
-0:05
25.2M
25.20 mi15:46:464:26:2310:343:46
10:55
+0:25
Finish
26.22 mi15:56:524:36:2910:3310:06
9:55
-1:00

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

9:55 /mi

Average Pace

10:33 /mi

Slowest Pace

11:18 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

4:13:45

92% of race

Time at Steady Pace

22:44

8% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 10:33 /mi

Loading chart...
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...
0mi6.6mi13.1mi19.7mi26.2mi
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
5K
3.11 mi11:52:3932:1610:2332:16
10:23
#24444
10K
6.21 mi12:24:141:03:5110:1731:35
10:10
#24221
15K
9.32 mi12:56:021:35:3910:1631:48
10:14
#24138
20K
12.43 mi13:29:522:09:2910:2533:50
10:53
#24267
Half
13.11 mi13:37:322:17:0910:287:40
11:14
#24343
25K
15.53 mi14:02:532:42:3010:2825:21
10:27
#24098
30K
18.64 mi14:36:133:15:5010:3033:20
10:44
#23829
20M
20.00 mi14:50:443:30:2110:3114:31
10:41
#23683
21M
21.00 mi15:02:023:41:3910:3311:18
11:18
#23586
35K
21.75 mi15:10:113:49:4810:348:09
10:54
#23571
23M
23.00 mi15:23:264:03:0310:3413:15
10:35
#23483
24M
24.00 mi15:34:014:13:3810:3410:35
10:35
#23439
40K
24.85 mi15:43:004:22:3710:348:59
10:30
#23352
25.2M
25.20 mi15:46:464:26:2310:343:46
10:55
#23306
Finish
26.22 mi15:56:524:36:2910:3310:06
9:55
#23251
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi24444101241012423964(Top 90%)9875(Top 86%)9875(Top 202%)
10K6.21 mi3.10 mi24221+22310009+11510009+11524061(Top 90%)9921(Top 87%)9921(Top 203%)
15K9.32 mi3.11 mi24138+839966+439966+4323964(Top 90%)9875(Top 86%)9875(Top 202%)
20K12.43 mi3.11 mi24267-12910043-7710043-7724467(Top 92%)10185(Top 89%)10185(Top 209%)
Half13.11 mi0.68 mi24343-7610087-4410087-4425245(Top 95%)10640(Top 93%)10640(Top 218%)
25K15.53 mi2.42 mi24098+2459961+1269961+12623115(Top 87%)9454(Top 83%)9454(Top 194%)
30K18.64 mi3.11 mi23829+2699823+1389823+13822654(Top 85%)9275(Top 81%)9275(Top 190%)
20M20.00 mi1.36 mi23683+1469756+679756+6722116(Top 83%)9053(Top 79%)9053(Top 185%)
21M21.00 mi1.00 mi23586+979711+459711+4521495(Top 81%)8739(Top 77%)8739(Top 179%)
35K21.75 mi0.75 mi23571+159708+39708+323127(Top 87%)9662(Top 85%)9662(Top 198%)
23M23.00 mi1.25 mi23483+889671+379671+3721533(Top 81%)8811(Top 77%)8811(Top 180%)
24M24.00 mi1.00 mi23439+449660+119660+1122216(Top 83%)9221(Top 81%)9221(Top 189%)
40K24.85 mi0.85 mi23352+879624+369624+3621248(Top 80%)8751(Top 77%)8751(Top 179%)
25.2M25.20 mi0.35 mi23306+469605+199605+1920329(Top 76%)8242(Top 72%)8242(Top 169%)
Finish26.22 mi1.02 mi23251+559581+249581+2421534(Top 81%)8869(Top 78%)8869(Top 182%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 90%
×21stories
+97ft-345ft

Overall

23964

Females

9875

F18-39

9875

5K→10K

3.1 - 6.2 mi

Top 90%
×5stories
+79ft-138ft

Overall

24061

Females

9921

F18-39

9921

10K→15K

6.2 - 9.3 mi

Top 90%
×3stories
+67ft-78ft

Overall

23964

Females

9875

F18-39

9875

15K→20K

9.3 - 12.4 mi

Top 92%
×5stories
+106ft-86ft

Overall

24467

Females

10185

F18-39

10185

20K→Half

12.4 - 13.1 mi

Top 95%
×2stories
+19ft-37ft

Overall

25245

Females

10640

F18-39

10640

Half→25K

13.1 - 15.5 mi

Top 87%
×4stories
+66ft-88ft

Overall

23115

Females

9454

F18-39

9454

25K→30K

15.5 - 18.6 mi

Top 85%
×9stories
+181ft-148ft

Overall

22654

Females

9275

F18-39

9275

30K→20M

18.6 - 20.0 mi

Top 83%
×5stories
+64ft-50ft

Overall

22116

Females

9053

F18-39

9053

20M→21M

20.0 - 21.0 mi

Top 81%
×8stories
+106ft-24ft

Overall

21495

Females

8739

F18-39

8739

21M→35K

21.0 - 21.8 mi

Top 87%
×7stories
+17ft-86ft

Overall

23127

Females

9662

F18-39

9662

35K→23M

21.8 - 23.0 mi

Top 81%
×5stories
+23ft-63ft

Overall

21533

Females

8811

F18-39

8811

23M→24M

23.0 - 24.0 mi

Top 83%
×6stories
+12ft-82ft

Overall

22216

Females

9221

F18-39

9221

24M→40K

24.0 - 24.9 mi

Top 80%
×1story
+6ft-20ft

Overall

21248

Females

8751

F18-39

8751

40K→25.2M

24.9 - 25.2 mi

Top 76%
×1story
+13ft-16ft

Overall

20329

Females

8242

F18-39

8242

25.2M→Finish

25.2 - 26.2 mi

Top 81%
×2stories
+22ft-21ft

Overall

21534

Females

8869

F18-39

8869

Passing Analysis

Category:
Athletes Passed
1715
Passed By
522
Net Change
+1193
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24444
5K → 10K30986+223#24444#24221
10K → 15K16885+83#24221#24138
15K → 20K70199-129#24138#24267
20K → Half1086-76#24267#24343
Half → 25K2494+245#24343#24098
25K → 30K28011+269#24098#23829
30K → 20M1482+146#23829#23683
20M → 21M1025+97#23683#23586
21M → 35K2914+15#23586#23571
35K → 23M979+88#23571#23483
23M → 24M5511+44#23483#23439
24M → 40K892+87#23439#23352
40K → 25.2M471+46#23352#23306
25.2M → Finish627+55#23306#23251
TOTALS1715522+1193
📊

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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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing