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BOSTON MARATHON 2023

Michelle Cronin

Bib: 25115•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
27:45
Rank: #20143
Start → 5K
27:45 | 8:56/mi
10K· 6.21 mi
55:52
Rank: #20624 (-481)
5K → 10K
28:07 | 9:03/mi
15K· 9.32 mi
1:27:18
Rank: #21890 (-1266)
10K → 15K
31:26 | 10:07/mi
20K· 12.43 mi
2:01:16
Rank: #22826 (-936)
15K → 20K
33:58 | 10:56/mi
Half· 13.11 mi
2:08:28
Rank: #22931 (-105)
20K → Half
7:12 | 10:33/mi
25K· 15.53 mi
2:35:49
Rank: #23274 (-343)
Half → 25K
27:21 | 11:17/mi
30K· 18.64 mi
3:12:02
Rank: #23452 (-178)
25K → 30K
36:13 | 11:39/mi
20M
3:27:36
Rank: #23439 (+13)
30K → 20M
15:34 | 11:27/mi
21M
3:40:14
Rank: #23468 (-29)
20M → 21M
12:38 | 12:38/mi
35K· 21.75 mi
3:48:12
Rank: #23439 (+29)
21M → 35K
7:58 | 10:39/mi
23M
4:02:21
Rank: #23422 (+17)
35K → 23M
14:09 | 11:18/mi
24M
4:13:02
Rank: #23382 (+40)
23M → 24M
10:41 | 10:41/mi
40K· 24.85 mi
4:23:51
Rank: #23461 (-79)
24M → 40K
10:49 | 12:39/mi
25.2M
4:27:58
Rank: #23438 (+23)
40K → 25.2M
4:07 | 11:56/mi
Finish· 26.22 mi
4:38:35
Rank: #23423 (+15)
25.2M → Finish
10:37 | 10:25/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:08:28
Pace9:48 /mi
2nd Half
Distance13.11 mi
Time2:30:07
Pace11:27 /mi
📊Positive Split: 16.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:46:3927:458:5627:45
8:56
-
10K
6.21 mi12:14:4655:528:5928:07
9:03
+0:07
15K
9.32 mi12:46:121:27:189:2231:26
10:07
+1:04
20K
12.43 mi13:20:102:01:169:4533:58
10:56
+0:49
Half
13.11 mi13:27:222:08:289:487:12
10:33
-0:23
25K
15.53 mi13:54:432:35:4910:0227:21
11:17
+0:44
30K
18.64 mi14:30:563:12:0210:1836:13
11:39
+0:22
20M
20.00 mi14:46:303:27:3610:2315:34
11:27
-0:12
21M
21.00 mi14:59:083:40:1410:2912:38
12:38
+1:11
35K
21.75 mi15:07:063:48:1210:307:58
10:39
-1:59
23M
23.00 mi15:21:154:02:2110:3214:09
11:18
+0:39
24M
24.00 mi15:31:564:13:0210:3310:41
10:41
-0:37
40K
24.85 mi15:42:454:23:5110:3710:49
12:39
+1:58
25.2M
25.20 mi15:46:524:27:5810:384:07
11:56
-0:43
Finish
26.22 mi15:57:294:38:3510:3810:37
10:25
-1:31

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

8:56 /mi

Average Pace

10:38 /mi

Slowest Pace

12:39 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:27:18

31% of race

Time at Steady Pace

2:07:30

46% of race

Time at Slower Pace

1:03:47

23% of race

Average Pace: 10:37 /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 mi11:46:3927:458:5627:45
8:56
#20143
10K
6.21 mi12:14:4655:528:5928:07
9:03
#20624
15K
9.32 mi12:46:121:27:189:2231:26
10:07
#21890
20K
12.43 mi13:20:102:01:169:4533:58
10:56
#22826
Half
13.11 mi13:27:222:08:289:487:12
10:33
#22931
25K
15.53 mi13:54:432:35:4910:0227:21
11:17
#23274
30K
18.64 mi14:30:563:12:0210:1836:13
11:39
#23452
20M
20.00 mi14:46:303:27:3610:2315:34
11:27
#23439
21M
21.00 mi14:59:083:40:1410:2912:38
12:38
#23468
35K
21.75 mi15:07:063:48:1210:307:58
10:39
#23439
23M
23.00 mi15:21:154:02:2110:3214:09
11:18
#23422
24M
24.00 mi15:31:564:13:0210:3310:41
10:41
#23382
40K
24.85 mi15:42:454:23:5110:3710:49
12:39
#23461
25.2M
25.20 mi15:46:524:27:5810:384:07
11:56
#23438
Finish
26.22 mi15:57:294:38:3510:3810:37
10:25
#23423
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi201437908790823731(Top 89%)9742(Top 85%)9742(Top 519%)
10K6.21 mi3.10 mi20624-4818104-1968104-19621080(Top 79%)8313(Top 73%)8313(Top 443%)
15K9.32 mi3.11 mi21890-12668778-6748778-67423731(Top 89%)9742(Top 85%)9742(Top 519%)
20K12.43 mi3.11 mi22826-9369260-4829260-48224530(Top 92%)10217(Top 89%)10217(Top 544%)
Half13.11 mi0.68 mi22931-1059314-549314-5424301(Top 91%)10094(Top 88%)10094(Top 537%)
25K15.53 mi2.42 mi23274-3439498-1849498-18424378(Top 92%)10157(Top 89%)10157(Top 541%)
30K18.64 mi3.11 mi23452-1789616-1189616-11824064(Top 90%)10048(Top 88%)10048(Top 535%)
20M20.00 mi1.36 mi23439+139627-119627-1123463(Top 88%)9765(Top 85%)9765(Top 520%)
21M21.00 mi1.00 mi23468-299643-169643-1623639(Top 89%)9885(Top 87%)9885(Top 526%)
35K21.75 mi0.75 mi23439+299636+79636+722682(Top 85%)9412(Top 82%)9412(Top 501%)
23M23.00 mi1.25 mi23422+179641-59641-522899(Top 86%)9535(Top 83%)9535(Top 508%)
24M24.00 mi1.00 mi23382+409628+139628+1322436(Top 84%)9335(Top 82%)9335(Top 497%)
40K24.85 mi0.85 mi23461-799675-479675-4724615(Top 92%)10482(Top 92%)10482(Top 558%)
25.2M25.20 mi0.35 mi23438+239670+59670+522413(Top 84%)9361(Top 82%)9361(Top 498%)
Finish26.22 mi1.02 mi23423+159675-59675-522851(Top 86%)9576(Top 84%)9576(Top 510%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 89%
×21stories
+97ft-345ft

Overall

23731

Females

9742

F40-44

9742

5K→10K

3.1 - 6.2 mi

Top 79%
×5stories
+79ft-138ft

Overall

21080

Females

8313

F40-44

8313

10K→15K

6.2 - 9.3 mi

Top 89%
×3stories
+67ft-78ft

Overall

23731

Females

9742

F40-44

9742

15K→20K

9.3 - 12.4 mi

Top 92%
×5stories
+106ft-86ft

Overall

24530

Females

10217

F40-44

10217

20K→Half

12.4 - 13.1 mi

Top 91%
×2stories
+19ft-37ft

Overall

24301

Females

10094

F40-44

10094

Half→25K

13.1 - 15.5 mi

Top 92%
×4stories
+66ft-88ft

Overall

24378

Females

10157

F40-44

10157

25K→30K

15.5 - 18.6 mi

Top 90%
×9stories
+181ft-148ft

Overall

24064

Females

10048

F40-44

10048

30K→20M

18.6 - 20.0 mi

Top 88%
×5stories
+64ft-50ft

Overall

23463

Females

9765

F40-44

9765

20M→21M

20.0 - 21.0 mi

Top 89%
×8stories
+106ft-24ft

Overall

23639

Females

9885

F40-44

9885

21M→35K

21.0 - 21.8 mi

Top 85%
×7stories
+17ft-86ft

Overall

22682

Females

9412

F40-44

9412

35K→23M

21.8 - 23.0 mi

Top 86%
×5stories
+23ft-63ft

Overall

22899

Females

9535

F40-44

9535

23M→24M

23.0 - 24.0 mi

Top 84%
×6stories
+12ft-82ft

Overall

22436

Females

9335

F40-44

9335

24M→40K

24.0 - 24.9 mi

Top 92%
×1story
+6ft-20ft

Overall

24615

Females

10482

F40-44

10482

40K→25.2M

24.9 - 25.2 mi

Top 84%
×1story
+13ft-16ft

Overall

22413

Females

9361

F40-44

9361

25.2M→Finish

25.2 - 26.2 mi

Top 86%
×2stories
+22ft-21ft

Overall

22851

Females

9576

F40-44

9576

Passing Analysis

Category:
Athletes Passed
543
Passed By
3823
Net Change
-3280
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20143
5K → 10K115596-481#20143#20624
10K → 15K71273-1266#20624#21890
15K → 20K11947-936#21890#22826
20K → Half5110-105#22826#22931
Half → 25K27370-343#22931#23274
25K → 30K57235-178#23274#23452
30K → 20M5946+13#23452#23439
20M → 21M2756-29#23439#23468
21M → 35K4011+29#23468#23439
35K → 23M5336+17#23439#23422
23M → 24M5515+40#23422#23382
24M → 40K1897-79#23382#23461
40K → 25.2M285+23#23461#23438
25.2M → Finish4126+15#23438#23423
TOTALS5433823-3280
📊

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