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BOSTON MARATHON 2023

Amy Cronin

Bib: 25829•F

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F40-44)
#0 / 1878
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
33:01
Rank: #25016
Start → 5K
33:01 | 10:38/mi
10K· 6.21 mi
1:04:40
Rank: #24507 (+509)
5K → 10K
31:39 | 10:11/mi
15K· 9.32 mi
1:38:40
Rank: #24779 (-272)
10K → 15K
34:00 | 10:57/mi
20K· 12.43 mi
2:23:01
Rank: #25804 (-1025)
15K → 20K
44:21 | 14:16/mi
Half· 13.11 mi
2:30:21
Rank: #25747 (+57)
20K → Half
7:20 | 10:45/mi
25K· 15.53 mi
3:00:43
Rank: #25735 (+12)
Half → 25K
30:22 | 12:31/mi
30K· 18.64 mi
3:39:56
Rank: #25638 (+97)
25K → 30K
39:13 | 12:37/mi
20M
3:57:55
Rank: #25624 (+14)
30K → 20M
17:59 | 13:14/mi
21M
4:11:08
Rank: #25563 (+61)
20M → 21M
13:13 | 13:14/mi
35K· 21.75 mi
4:19:23
Rank: #25505 (+58)
21M → 35K
8:15 | 11:02/mi
23M
4:34:45
Rank: #25467 (+38)
35K → 23M
15:22 | 12:16/mi
24M
4:49:19
Rank: #25531 (-64)
23M → 24M
14:34 | 14:34/mi
40K· 24.85 mi
5:00:54
Rank: #25531
24M → 40K
11:35 | 13:33/mi
25.2M
5:05:41
Rank: #25522 (+9)
40K → 25.2M
4:47 | 13:52/mi
Finish· 26.22 mi
5:17:26
Rank: #25505 (+17)
25.2M → Finish
11:45 | 11:32/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:30:21
Pace11:28 /mi
2nd Half
Distance13.11 mi
Time2:47:05
Pace12:45 /mi
📊Positive Split: 11.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:49:3233:0110:3833:01
10:38
-
10K
6.21 mi12:21:111:04:4010:2431:39
10:11
-0:27
15K
9.32 mi12:55:111:38:4010:3534:00
10:57
+0:46
20K
12.43 mi13:39:322:23:0111:3044:21
14:16
+3:19
Half
13.11 mi13:46:522:30:2111:287:20
10:45
-3:31
25K
15.53 mi14:17:143:00:4311:3830:22
12:31
+1:46
30K
18.64 mi14:56:273:39:5611:4839:13
12:37
+0:06
20M
20.00 mi15:14:263:57:5511:5417:59
13:14
+0:37
21M
21.00 mi15:27:394:11:0811:5813:13
13:14
0:00
35K
21.75 mi15:35:544:19:2311:568:15
11:02
-2:12
23M
23.00 mi15:51:164:34:4511:5715:22
12:16
+1:14
24M
24.00 mi16:05:504:49:1912:0314:34
14:34
+2:18
40K
24.85 mi16:17:255:00:5412:0611:35
13:33
-1:01
25.2M
25.20 mi16:22:125:05:4112:084:47
13:52
+0:19
Finish
26.22 mi16:33:575:17:2612:0711:45
11:32
-2:20

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

10:11 /mi

Average Pace

12:07 /mi

Slowest Pace

14:34 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:06:00

40% of race

Time at Steady Pace

1:24:57

27% of race

Time at Slower Pace

1:46:29

34% of race

Average Pace: 12:06 /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 mi11:49:3233:0110:3833:01
10:38
#25016
10K
6.21 mi12:21:111:04:4010:2431:39
10:11
#24507
15K
9.32 mi12:55:111:38:4010:3534:00
10:57
#24779
20K
12.43 mi13:39:322:23:0111:3044:21
14:16
#25804
Half
13.11 mi13:46:522:30:2111:287:20
10:45
#25747
25K
15.53 mi14:17:143:00:4311:3830:22
12:31
#25735
30K
18.64 mi14:56:273:39:5611:4839:13
12:37
#25638
20M
20.00 mi15:14:263:57:5511:5417:59
13:14
#25624
21M
21.00 mi15:27:394:11:0811:5813:13
13:14
#25563
35K
21.75 mi15:35:544:19:2311:568:15
11:02
#25505
23M
23.00 mi15:51:164:34:4511:5715:22
12:16
#25467
24M
24.00 mi16:05:504:49:1912:0314:34
14:34
#25531
40K
24.85 mi16:17:255:00:5412:0611:35
13:33
#25531
25.2M
25.20 mi16:22:125:05:4112:084:47
13:52
#25522
Finish
26.22 mi16:33:575:17:2612:0711:45
11:32
#25505
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi25016104421044225123(Top 94%)10530(Top 92%)10530(Top 561%)
10K6.21 mi3.10 mi24507+50910164+27810164+27824108(Top 91%)9950(Top 87%)9950(Top 530%)
15K9.32 mi3.11 mi24779-27210326-16210326-16225123(Top 94%)10530(Top 92%)10530(Top 561%)
20K12.43 mi3.11 mi25804-102510929-60310929-60326548(Top 100%)11385(Top 100%)11385(Top 606%)
Half13.11 mi0.68 mi25747+5710901+2810901+2824611(Top 92%)10275(Top 90%)10275(Top 547%)
25K15.53 mi2.42 mi25735+1210894+710894+725565(Top 96%)10829(Top 95%)10829(Top 577%)
30K18.64 mi3.11 mi25638+9710849+4510849+4525116(Top 94%)10633(Top 93%)10633(Top 566%)
20M20.00 mi1.36 mi25624+1410847+210847+225342(Top 95%)10775(Top 94%)10775(Top 574%)
21M21.00 mi1.00 mi25563+6110820+2710820+2724324(Top 91%)10261(Top 90%)10261(Top 546%)
35K21.75 mi0.75 mi25505+5810790+3010790+3023371(Top 88%)9805(Top 86%)9805(Top 522%)
23M23.00 mi1.25 mi25467+3810774+1610774+1624338(Top 91%)10310(Top 90%)10310(Top 549%)
24M24.00 mi1.00 mi25531-6410812-3810812-3826290(Top 99%)11293(Top 99%)11293(Top 601%)
40K24.85 mi0.85 mi2553110821-910821-925390(Top 95%)10863(Top 95%)10863(Top 578%)
25.2M25.20 mi0.35 mi25522+910819+210819+224920(Top 94%)10657(Top 93%)10657(Top 567%)
Finish26.22 mi1.02 mi25505+1710811+810811+824714(Top 93%)10515(Top 92%)10515(Top 560%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 94%
×21stories
+97ft-345ft

Overall

25123

Females

10530

F40-44

10530

5K→10K

3.1 - 6.2 mi

Top 91%
×5stories
+79ft-138ft

Overall

24108

Females

9950

F40-44

9950

10K→15K

6.2 - 9.3 mi

Top 94%
×3stories
+67ft-78ft

Overall

25123

Females

10530

F40-44

10530

15K→20K

9.3 - 12.4 mi

Top 100%
×5stories
+106ft-86ft

Overall

26548

Females

11385

F40-44

11385

20K→Half

12.4 - 13.1 mi

Top 92%
×2stories
+19ft-37ft

Overall

24611

Females

10275

F40-44

10275

Half→25K

13.1 - 15.5 mi

Top 96%
×4stories
+66ft-88ft

Overall

25565

Females

10829

F40-44

10829

25K→30K

15.5 - 18.6 mi

Top 94%
×9stories
+181ft-148ft

Overall

25116

Females

10633

F40-44

10633

30K→20M

18.6 - 20.0 mi

Top 95%
×5stories
+64ft-50ft

Overall

25342

Females

10775

F40-44

10775

20M→21M

20.0 - 21.0 mi

Top 91%
×8stories
+106ft-24ft

Overall

24324

Females

10261

F40-44

10261

21M→35K

21.0 - 21.8 mi

Top 88%
×7stories
+17ft-86ft

Overall

23371

Females

9805

F40-44

9805

35K→23M

21.8 - 23.0 mi

Top 91%
×5stories
+23ft-63ft

Overall

24338

Females

10310

F40-44

10310

23M→24M

23.0 - 24.0 mi

Top 99%
×6stories
+12ft-82ft

Overall

26290

Females

11293

F40-44

11293

24M→40K

24.0 - 24.9 mi

Top 95%
×1story
+6ft-20ft

Overall

25390

Females

10863

F40-44

10863

40K→25.2M

24.9 - 25.2 mi

Top 94%
×1story
+13ft-16ft

Overall

24920

Females

10657

F40-44

10657

25.2M→Finish

25.2 - 26.2 mi

Top 93%
×2stories
+22ft-21ft

Overall

24714

Females

10515

F40-44

10515

Passing Analysis

Category:
Athletes Passed
1099
Passed By
1588
Net Change
-489
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25016
5K → 10K55243+509#25016#24507
10K → 15K44316-272#24507#24779
15K → 20K01025-1025#24779#25804
20K → Half581+57#25804#25747
Half → 25K5846+12#25747#25735
25K → 30K12023+97#25735#25638
30K → 20M3420+14#25638#25624
20M → 21M665+61#25624#25563
21M → 35K602+58#25563#25505
35K → 23M479+38#25505#25467
23M → 24M468-64#25467#25531
24M → 40K22220#25531#25531
40K → 25.2M156+9#25531#25522
25.2M → Finish192+17#25522#25505
TOTALS10991588-489
📊

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