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BOSTON MARATHON 2023

Maurine Chepkemoi

Bib: 112•F

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 1%
Gender (Female)
#0 / 11423
Top 0.3%
Division (F18-39)
#0 / 4884
Top 0.6%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
17:49
Rank: #308
Start → 5K
17:49 | 5:44/mi
10K· 6.21 mi
34:46
Rank: #187 (+121)
5K → 10K
16:57 | 5:27/mi
15K· 9.32 mi
51:16
Rank: #125 (+62)
10K → 15K
16:30 | 5:19/mi
20K· 12.43 mi
1:08:37
Rank: #125
15K → 20K
17:21 | 5:35/mi
Half· 13.11 mi
1:12:34
Rank: #136 (-11)
20K → Half
3:57 | 5:47/mi
25K· 15.53 mi
1:27:06
Rank: #159 (-23)
Half → 25K
14:32 | 6:00/mi
30K· 18.64 mi
1:46:45
Rank: #221 (-62)
25K → 30K
19:39 | 6:19/mi
20M
1:55:26
Rank: #261 (-40)
30K → 20M
8:41 | 6:23/mi
21M
2:02:19
Rank: #294 (-33)
20M → 21M
6:53 | 6:53/mi
35K· 21.75 mi
2:06:47
Rank: #294
21M → 35K
4:28 | 5:58/mi
23M
2:14:47
Rank: #301 (-7)
35K → 23M
8:00 | 6:23/mi
24M
2:20:59
Rank: #312 (-11)
23M → 24M
6:12 | 6:12/mi
40K· 24.85 mi
2:26:30
Rank: #329 (-17)
24M → 40K
5:31 | 6:27/mi
25.2M
2:28:54
Rank: #333 (-4)
40K → 25.2M
2:24 | 6:58/mi
Finish· 26.22 mi
2:35:25
Rank: #348 (-15)
25.2M → Finish
6:31 | 6:24/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:12:34
Pace5:32 /mi
2nd Half
Distance13.11 mi
Time1:22:51
Pace6:19 /mi
📊Positive Split: 14.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:04:4917:495:4417:49
5:44
-
10K
6.21 mi10:21:4634:465:3616:57
5:27
-0:17
15K
9.32 mi10:38:1651:165:3016:30
5:19
-0:08
20K
12.43 mi10:55:371:08:375:3117:21
5:35
+0:16
Half
13.11 mi10:59:341:12:345:323:57
5:47
+0:12
25K
15.53 mi11:14:061:27:065:3614:32
6:00
+0:13
30K
18.64 mi11:33:451:46:455:4419:39
6:19
+0:19
20M
20.00 mi11:42:261:55:265:468:41
6:23
+0:04
21M
21.00 mi11:49:192:02:195:496:53
6:53
+0:30
35K
21.75 mi11:53:472:06:475:504:28
5:58
-0:55
23M
23.00 mi12:01:472:14:475:528:00
6:23
+0:25
24M
24.00 mi12:07:592:20:595:526:12
6:12
-0:11
40K
24.85 mi12:13:302:26:305:545:31
6:27
+0:15
25.2M
25.20 mi12:15:542:28:545:552:24
6:58
+0:31
Finish
26.22 mi12:22:252:35:255:566:31
6:24
-0:34

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

5:19 /mi

Average Pace

5:56 /mi

Slowest Pace

6:58 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:12:34

47% of race

Time at Steady Pace

1:08:03

44% of race

Time at Slower Pace

14:48

10% of race

Average Pace: 5:56 /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 mi10:04:4917:495:4417:49
5:44
#308
10K
6.21 mi10:21:4634:465:3616:57
5:27
#187
15K
9.32 mi10:38:1651:165:3016:30
5:19
#125
20K
12.43 mi10:55:371:08:375:3117:21
5:35
#125
Half
13.11 mi10:59:341:12:345:323:57
5:47
#136
25K
15.53 mi11:14:061:27:065:3614:32
6:00
#159
30K
18.64 mi11:33:451:46:455:4419:39
6:19
#221
20M
20.00 mi11:42:261:55:265:468:41
6:23
#261
21M
21.00 mi11:49:192:02:195:496:53
6:53
#294
35K
21.75 mi11:53:472:06:475:504:28
5:58
#294
23M
23.00 mi12:01:472:14:475:528:00
6:23
#301
24M
24.00 mi12:07:592:20:595:526:12
6:12
#312
40K
24.85 mi12:13:302:26:305:545:31
6:27
#329
25.2M
25.20 mi12:15:542:28:545:552:24
6:58
#333
Finish
26.22 mi12:22:252:35:255:566:31
6:24
#348
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi308161662(Top 0.2%)17(Top 0.1%)17(Top 0.3%)
10K6.21 mi3.10 mi187+12110+610+6117(Top 0.4%)11(Top 0.10%)11(Top 0.2%)
15K9.32 mi3.11 mi125+6217-717-762(Top 0.2%)17(Top 0.1%)17(Top 0.3%)
20K12.43 mi3.11 mi12518-118-1133(Top 0.5%)20(Top 0.2%)20(Top 0.4%)
Half13.11 mi0.68 mi136-1119-119-1397(Top 1%)30(Top 0.3%)30(Top 0.6%)
25K15.53 mi2.42 mi159-2322-322-3538(Top 2%)37(Top 0.3%)37(Top 0.8%)
30K18.64 mi3.11 mi221-6225-325-3989(Top 4%)48(Top 0.4%)48(Top 1.0%)
20M20.00 mi1.36 mi261-4027-227-21126(Top 4%)47(Top 0.4%)47(Top 1.0%)
21M21.00 mi1.00 mi294-3331-431-41731(Top 7%)82(Top 0.7%)82(Top 2%)
35K21.75 mi0.75 mi2943131640(Top 2%)40(Top 0.4%)40(Top 0.8%)
23M23.00 mi1.25 mi301-731311087(Top 4%)56(Top 0.5%)56(Top 1%)
24M24.00 mi1.00 mi312-1131311048(Top 4%)54(Top 0.5%)54(Top 1%)
40K24.85 mi0.85 mi329-1731311413(Top 5%)78(Top 0.7%)78(Top 2%)
25.2M25.20 mi0.35 mi333-432-132-11686(Top 6%)96(Top 0.8%)96(Top 2%)
Finish26.22 mi1.02 mi348-1532322022(Top 8%)134(Top 1%)134(Top 3%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 0.2%
×21stories
+97ft-345ft

Overall

62

Females

17

F18-39

17

5K→10K

3.1 - 6.2 mi

Top 0.4%
×5stories
+79ft-138ft

Overall

117

Females

11

F18-39

11

10K→15K

6.2 - 9.3 mi

Top 0.2%
×3stories
+67ft-78ft

Overall

62

Females

17

F18-39

17

15K→20K

9.3 - 12.4 mi

Top 0.5%
×5stories
+106ft-86ft

Overall

133

Females

20

F18-39

20

20K→Half

12.4 - 13.1 mi

Top 1%
×2stories
+19ft-37ft

Overall

397

Females

30

F18-39

30

Half→25K

13.1 - 15.5 mi

Top 2%
×4stories
+66ft-88ft

Overall

538

Females

37

F18-39

37

25K→30K

15.5 - 18.6 mi

Top 4%
×9stories
+181ft-148ft

Overall

989

Females

48

F18-39

48

30K→20M

18.6 - 20.0 mi

Top 4%
×5stories
+64ft-50ft

Overall

1126

Females

47

F18-39

47

20M→21M

20.0 - 21.0 mi

Top 7%
×8stories
+106ft-24ft

Overall

1731

Females

82

F18-39

82

21M→35K

21.0 - 21.8 mi

Top 2%
×7stories
+17ft-86ft

Overall

640

Females

40

F18-39

40

35K→23M

21.8 - 23.0 mi

Top 4%
×5stories
+23ft-63ft

Overall

1087

Females

56

F18-39

56

23M→24M

23.0 - 24.0 mi

Top 4%
×6stories
+12ft-82ft

Overall

1048

Females

54

F18-39

54

24M→40K

24.0 - 24.9 mi

Top 5%
×1story
+6ft-20ft

Overall

1413

Females

78

F18-39

78

40K→25.2M

24.9 - 25.2 mi

Top 6%
×1story
+13ft-16ft

Overall

1686

Females

96

F18-39

96

25.2M→Finish

25.2 - 26.2 mi

Top 8%
×2stories
+22ft-21ft

Overall

2022

Females

134

F18-39

134

Passing Analysis

Category:
Athletes Passed
217
Passed By
257
Net Change
-40
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#308
5K → 10K1210+121#308#187
10K → 15K697+62#187#125
15K → 20K440#125#125
20K → Half011-11#125#136
Half → 25K124-23#136#159
25K → 30K062-62#159#221
30K → 20M040-40#221#261
20M → 21M134-33#261#294
21M → 35K330#294#294
35K → 23M29-7#294#301
23M → 24M314-11#301#312
24M → 40K320-17#312#329
40K → 25.2M26-4#329#333
25.2M → Finish823-15#333#348
TOTALS217257-40
📊

Passing Visuals

Category:

📈Position Graph

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🎨Heatmap Timeline

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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