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BOSTON MARATHON 2025

Caroline Mihalski

Bib: 20223•F

WI

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F40-44)
#0 / 1718
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
27:10
Rank: #21229
Start → 5K
27:10 | 8:45/mi
10K· 6.21 mi
54:20
Rank: #21135 (+94)
5K → 10K
27:10 | 8:45/mi
15K· 9.32 mi
1:21:44
Rank: #21088 (+47)
10K → 15K
27:24 | 8:49/mi
20K· 12.43 mi
1:50:05
Rank: #21218 (-130)
15K → 20K
28:21 | 9:07/mi
Half· 13.11 mi
1:56:13
Rank: #21252 (-34)
20K → Half
6:08 | 8:59/mi
25K· 15.53 mi
2:20:21
Rank: #21722 (-470)
Half → 25K
24:08 | 9:57/mi
30K· 18.64 mi
2:52:06
Rank: #21913 (-191)
25K → 30K
31:45 | 10:13/mi
20M
3:06:23
Rank: #21957 (-44)
30K → 20M
14:17 | 10:31/mi
21M
3:18:08
Rank: #22032 (-75)
20M → 21M
11:45 | 11:45/mi
35K· 21.75 mi
3:25:10
Rank: #21946 (+86)
21M → 35K
7:02 | 9:24/mi
23M
3:37:55
Rank: #21874 (+72)
35K → 23M
12:45 | 10:11/mi
24M
3:47:47
Rank: #21817 (+57)
23M → 24M
9:52 | 9:52/mi
40K· 24.85 mi
3:56:20
Rank: #21769 (+48)
24M → 40K
8:33 | 10:00/mi
25.2M
4:00:20
Rank: #21770 (-1)
40K → 25.2M
4:00 | 11:36/mi
Finish· 26.22 mi
4:10:22
Rank: #21788 (-18)
25.2M → Finish
10:02 | 9:51/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:56:13
Pace8:52 /mi
2nd Half
Distance13.11 mi
Time2:14:09
Pace10:14 /mi
📊Positive Split: 15.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:20:2127:108:4527:10
8:45
-
10K
6.21 mi11:47:3154:208:4527:10
8:45
0:00
15K
9.32 mi12:14:551:21:448:4627:24
8:49
+0:04
20K
12.43 mi12:43:161:50:058:5128:21
9:07
+0:18
Half
13.11 mi12:49:241:56:138:526:08
8:59
-0:08
25K
15.53 mi13:13:322:20:219:0224:08
9:57
+0:58
30K
18.64 mi13:45:172:52:069:1431:45
10:13
+0:16
20M
20.00 mi13:59:343:06:239:1914:17
10:31
+0:18
21M
21.00 mi14:11:193:18:089:2611:45
11:45
+1:14
35K
21.75 mi14:18:213:25:109:267:02
9:24
-2:21
23M
23.00 mi14:31:063:37:559:2812:45
10:11
+0:47
24M
24.00 mi14:40:583:47:479:299:52
9:52
-0:19
40K
24.85 mi14:49:313:56:209:318:33
10:00
+0:08
25.2M
25.20 mi14:53:314:00:209:324:00
11:36
+1:36
Finish
26.22 mi15:03:334:10:229:3310:02
9:51
-1:45

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

8:45 /mi

Average Pace

9:33 /mi

Slowest Pace

11:45 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:03:15

49% of race

Time at Steady Pace

1:37:05

39% of race

Time at Slower Pace

30:02

12% of race

Average Pace: 9:33 /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 mi11:20:2127:108:4527:10
8:45
#21229
10K
6.21 mi11:47:3154:208:4527:10
8:45
#21135
15K
9.32 mi12:14:551:21:448:4627:24
8:49
#21088
20K
12.43 mi12:43:161:50:058:5128:21
9:07
#21218
Half
13.11 mi12:49:241:56:138:526:08
8:59
#21252
25K
15.53 mi13:13:322:20:219:0224:08
9:57
#21722
30K
18.64 mi13:45:172:52:069:1431:45
10:13
#21913
20M
20.00 mi13:59:343:06:239:1914:17
10:31
#21957
21M
21.00 mi14:11:193:18:089:2611:45
11:45
#22032
35K
21.75 mi14:18:213:25:109:267:02
9:24
#21946
23M
23.00 mi14:31:063:37:559:2812:45
10:11
#21874
24M
24.00 mi14:40:583:47:479:299:52
9:52
#21817
40K
24.85 mi14:49:313:56:209:318:33
10:00
#21769
25.2M
25.20 mi14:53:314:00:209:324:00
11:36
#21770
Finish
26.22 mi15:03:334:10:229:3310:02
9:51
#21788
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi212298210821021131(Top 74%)8076(Top 66%)8076(Top 470%)
10K6.21 mi3.10 mi21135+948122+888122+8821135(Top 74%)8104(Top 66%)8104(Top 472%)
15K9.32 mi3.11 mi21088+478085+378085+3721131(Top 74%)8076(Top 66%)8076(Top 470%)
20K12.43 mi3.11 mi21218-1308155-708155-7021582(Top 76%)8362(Top 68%)8362(Top 487%)
Half13.11 mi0.68 mi21252-348173-188173-1821827(Top 77%)8499(Top 70%)8499(Top 495%)
25K15.53 mi2.42 mi21722-4708456-2838456-28323140(Top 81%)9272(Top 76%)9272(Top 540%)
30K18.64 mi3.11 mi21913-1918574-1188574-11822235(Top 78%)8895(Top 73%)8895(Top 518%)
20M20.00 mi1.36 mi21957-448611-378611-3722459(Top 79%)9134(Top 75%)9134(Top 532%)
21M21.00 mi1.00 mi22032-758682-718682-7123126(Top 81%)9553(Top 78%)9553(Top 556%)
35K21.75 mi0.75 mi21946+868651+318651+3119993(Top 70%)7984(Top 65%)7984(Top 465%)
23M23.00 mi1.25 mi21874+728645+68645+621069(Top 74%)8595(Top 70%)8595(Top 500%)
24M24.00 mi1.00 mi21817+578640+58640+520966(Top 74%)8584(Top 70%)8584(Top 500%)
40K24.85 mi0.85 mi21769+488634+68634+620475(Top 72%)8395(Top 69%)8395(Top 489%)
25.2M25.20 mi0.35 mi21770-18640-68640-622329(Top 79%)9312(Top 76%)9312(Top 542%)
Finish26.22 mi1.02 mi21788-188663-238663-2322455(Top 79%)9398(Top 77%)9398(Top 547%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 74%
×21stories
+97ft-345ft

Overall

21131

Females

8076

F40-44

8076

5K→10K

3.1 - 6.2 mi

Top 74%
×5stories
+79ft-138ft

Overall

21135

Females

8104

F40-44

8104

10K→15K

6.2 - 9.3 mi

Top 74%
×3stories
+67ft-78ft

Overall

21131

Females

8076

F40-44

8076

15K→20K

9.3 - 12.4 mi

Top 76%
×5stories
+106ft-86ft

Overall

21582

Females

8362

F40-44

8362

20K→Half

12.4 - 13.1 mi

Top 77%
×2stories
+19ft-37ft

Overall

21827

Females

8499

F40-44

8499

Half→25K

13.1 - 15.5 mi

Top 81%
×4stories
+66ft-88ft

Overall

23140

Females

9272

F40-44

9272

25K→30K

15.5 - 18.6 mi

Top 78%
×9stories
+181ft-148ft

Overall

22235

Females

8895

F40-44

8895

30K→20M

18.6 - 20.0 mi

Top 79%
×5stories
+64ft-50ft

Overall

22459

Females

9134

F40-44

9134

20M→21M

20.0 - 21.0 mi

Top 81%
×8stories
+106ft-24ft

Overall

23126

Females

9553

F40-44

9553

21M→35K

21.0 - 21.8 mi

Top 70%
×7stories
+17ft-86ft

Overall

19993

Females

7984

F40-44

7984

35K→23M

21.8 - 23.0 mi

Top 74%
×5stories
+23ft-63ft

Overall

21069

Females

8595

F40-44

8595

23M→24M

23.0 - 24.0 mi

Top 74%
×6stories
+12ft-82ft

Overall

20966

Females

8584

F40-44

8584

24M→40K

24.0 - 24.9 mi

Top 72%
×1story
+6ft-20ft

Overall

20475

Females

8395

F40-44

8395

40K→25.2M

24.9 - 25.2 mi

Top 79%
×1story
+13ft-16ft

Overall

22329

Females

9312

F40-44

9312

25.2M→Finish

25.2 - 26.2 mi

Top 79%
×2stories
+22ft-21ft

Overall

22455

Females

9398

F40-44

9398

Passing Analysis

Category:
Athletes Passed
1449
Passed By
2008
Net Change
-559
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21229
5K → 10K323229+94#21229#21135
10K → 15K211164+47#21135#21088
15K → 20K158288-130#21088#21218
20K → Half1953-34#21218#21252
Half → 25K49519-470#21252#21722
25K → 30K131322-191#21722#21913
30K → 20M73117-44#21913#21957
20M → 21M60135-75#21957#22032
21M → 35K937+86#22032#21946
35K → 23M11947+72#21946#21874
23M → 24M7619+57#21874#21817
24M → 40K7325+48#21817#21769
40K → 25.2M2425-1#21769#21770
25.2M → Finish4058-18#21770#21788
TOTALS14492008-559
📊

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