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BOSTON MARATHON 2023

Caroline Mihalski

Bib: 20125•F

WI

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Top 44%
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
25:46
Rank: #16112
Start → 5K
25:46 | 8:18/mi
10K· 6.21 mi
51:04
Rank: #15953 (+159)
5K → 10K
25:18 | 8:09/mi
15K· 9.32 mi
1:16:34
Rank: #15945 (+8)
10K → 15K
25:30 | 8:12/mi
20K· 12.43 mi
1:42:36
Rank: #15959 (-14)
15K → 20K
26:02 | 8:23/mi
Half· 13.11 mi
1:48:12
Rank: #15942 (+17)
20K → Half
5:36 | 8:12/mi
25K· 15.53 mi
2:08:36
Rank: #15890 (+52)
Half → 25K
20:24 | 8:25/mi
30K· 18.64 mi
2:36:29
Rank: #16121 (-231)
25K → 30K
27:53 | 8:58/mi
20M
2:49:07
Rank: #16256 (-135)
30K → 20M
12:38 | 9:18/mi
21M
2:59:31
Rank: #16482 (-226)
20M → 21M
10:24 | 10:24/mi
35K· 21.75 mi
3:06:13
Rank: #16535 (-53)
21M → 35K
6:42 | 8:57/mi
23M
3:18:08
Rank: #16667 (-132)
35K → 23M
11:55 | 9:31/mi
24M
3:27:15
Rank: #16721 (-54)
23M → 24M
9:07 | 9:07/mi
40K· 24.85 mi
3:35:19
Rank: #16784 (-63)
24M → 40K
8:04 | 9:26/mi
25.2M
3:38:59
Rank: #16852 (-68)
40K → 25.2M
3:40 | 10:38/mi
Finish· 26.22 mi
3:48:24
Rank: #16962 (-110)
25.2M → Finish
9:25 | 9:14/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:48:12
Pace8:15 /mi
2nd Half
Distance13.11 mi
Time2:00:12
Pace9:10 /mi
📊Positive Split: 11.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:17:5525:468:1825:46
8:18
-
10K
6.21 mi11:43:1351:048:1325:18
8:09
-0:09
15K
9.32 mi12:08:431:16:348:1325:30
8:12
+0:03
20K
12.43 mi12:34:451:42:368:1526:02
8:23
+0:11
Half
13.11 mi12:40:211:48:128:155:36
8:12
-0:11
25K
15.53 mi13:00:452:08:368:1720:24
8:25
+0:13
30K
18.64 mi13:28:382:36:298:2427:53
8:58
+0:33
20M
20.00 mi13:41:162:49:078:2712:38
9:18
+0:20
21M
21.00 mi13:51:402:59:318:3310:24
10:24
+1:06
35K
21.75 mi13:58:223:06:138:346:42
8:57
-1:27
23M
23.00 mi14:10:173:18:088:3711:55
9:31
+0:34
24M
24.00 mi14:19:243:27:158:389:07
9:07
-0:24
40K
24.85 mi14:27:283:35:198:408:04
9:26
+0:19
25.2M
25.20 mi14:31:083:38:598:413:40
10:38
+1:12
Finish
26.22 mi14:40:333:48:248:439:25
9:14
-1:24

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

8:09 /mi

Average Pace

8:43 /mi

Slowest Pace

10:38 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:08:36

56% of race

Time at Steady Pace

1:05:45

29% of race

Time at Slower Pace

34:03

15% of race

Average Pace: 8:43 /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 mi11:17:5525:468:1825:46
8:18
#16112
10K
6.21 mi11:43:1351:048:1325:18
8:09
#15953
15K
9.32 mi12:08:431:16:348:1325:30
8:12
#15945
20K
12.43 mi12:34:451:42:368:1526:02
8:23
#15959
Half
13.11 mi12:40:211:48:128:155:36
8:12
#15942
25K
15.53 mi13:00:452:08:368:1720:24
8:25
#15890
30K
18.64 mi13:28:382:36:298:2427:53
8:58
#16121
20M
20.00 mi13:41:162:49:078:2712:38
9:18
#16256
21M
21.00 mi13:51:402:59:318:3310:24
10:24
#16482
35K
21.75 mi13:58:223:06:138:346:42
8:57
#16535
23M
23.00 mi14:10:173:18:088:3711:55
9:31
#16667
24M
24.00 mi14:19:243:27:158:389:07
9:07
#16721
40K
24.85 mi14:27:283:35:198:408:04
9:26
#16784
25.2M
25.20 mi14:31:083:38:598:413:40
10:38
#16852
Finish
26.22 mi14:40:333:48:248:439:25
9:14
#16962
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi161125356535615927(Top 60%)5253(Top 46%)5253(Top 280%)
10K6.21 mi3.10 mi15953+1595257+995257+9915866(Top 60%)5189(Top 45%)5189(Top 276%)
15K9.32 mi3.11 mi15945+85247+105247+1015927(Top 60%)5253(Top 46%)5253(Top 280%)
20K12.43 mi3.11 mi15959-145280-335280-3316137(Top 61%)5439(Top 48%)5439(Top 290%)
Half13.11 mi0.68 mi15942+175273+75273+715938(Top 60%)5270(Top 46%)5270(Top 281%)
25K15.53 mi2.42 mi15890+525269+45269+415691(Top 59%)5265(Top 46%)5265(Top 280%)
30K18.64 mi3.11 mi16121-2315450-1815450-18117037(Top 64%)6082(Top 53%)6082(Top 324%)
20M20.00 mi1.36 mi16256-1355553-1035553-10318015(Top 68%)6748(Top 59%)6748(Top 359%)
21M21.00 mi1.00 mi16482-2265700-1475700-14719273(Top 72%)7497(Top 66%)7497(Top 399%)
35K21.75 mi0.75 mi16535-535737-375737-3717735(Top 67%)6683(Top 59%)6683(Top 356%)
23M23.00 mi1.25 mi16667-1325832-955832-9518400(Top 69%)7072(Top 62%)7072(Top 377%)
24M24.00 mi1.00 mi16721-545876-445876-4417741(Top 67%)6766(Top 59%)6766(Top 360%)
40K24.85 mi0.85 mi16784-635931-555931-5518106(Top 68%)6992(Top 61%)6992(Top 372%)
25.2M25.20 mi0.35 mi16852-685980-495980-4919519(Top 73%)7784(Top 68%)7784(Top 414%)
Finish26.22 mi1.02 mi16962-1106059-796059-7919120(Top 72%)7497(Top 66%)7497(Top 399%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 60%
×21stories
+97ft-345ft

Overall

15927

Females

5253

F40-44

5253

5K→10K

3.1 - 6.2 mi

Top 60%
×5stories
+79ft-138ft

Overall

15866

Females

5189

F40-44

5189

10K→15K

6.2 - 9.3 mi

Top 60%
×3stories
+67ft-78ft

Overall

15927

Females

5253

F40-44

5253

15K→20K

9.3 - 12.4 mi

Top 61%
×5stories
+106ft-86ft

Overall

16137

Females

5439

F40-44

5439

20K→Half

12.4 - 13.1 mi

Top 60%
×2stories
+19ft-37ft

Overall

15938

Females

5270

F40-44

5270

Half→25K

13.1 - 15.5 mi

Top 59%
×4stories
+66ft-88ft

Overall

15691

Females

5265

F40-44

5265

25K→30K

15.5 - 18.6 mi

Top 64%
×9stories
+181ft-148ft

Overall

17037

Females

6082

F40-44

6082

30K→20M

18.6 - 20.0 mi

Top 68%
×5stories
+64ft-50ft

Overall

18015

Females

6748

F40-44

6748

20M→21M

20.0 - 21.0 mi

Top 72%
×8stories
+106ft-24ft

Overall

19273

Females

7497

F40-44

7497

21M→35K

21.0 - 21.8 mi

Top 67%
×7stories
+17ft-86ft

Overall

17735

Females

6683

F40-44

6683

35K→23M

21.8 - 23.0 mi

Top 69%
×5stories
+23ft-63ft

Overall

18400

Females

7072

F40-44

7072

23M→24M

23.0 - 24.0 mi

Top 67%
×6stories
+12ft-82ft

Overall

17741

Females

6766

F40-44

6766

24M→40K

24.0 - 24.9 mi

Top 68%
×1story
+6ft-20ft

Overall

18106

Females

6992

F40-44

6992

40K→25.2M

24.9 - 25.2 mi

Top 73%
×1story
+13ft-16ft

Overall

19519

Females

7784

F40-44

7784

25.2M→Finish

25.2 - 26.2 mi

Top 72%
×2stories
+22ft-21ft

Overall

19120

Females

7497

F40-44

7497

Passing Analysis

Category:
Athletes Passed
1362
Passed By
2212
Net Change
-850
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16112
5K → 10K386227+159#16112#15953
10K → 15K202194+8#15953#15945
15K → 20K160174-14#15945#15959
20K → Half3922+17#15959#15942
Half → 25K164112+52#15942#15890
25K → 30K118349-231#15890#16121
30K → 20M45180-135#16121#16256
20M → 21M36262-226#16256#16482
21M → 35K3487-53#16482#16535
35K → 23M49181-132#16535#16667
23M → 24M46100-54#16667#16721
24M → 40K38101-63#16721#16784
40K → 25.2M1280-68#16784#16852
25.2M → Finish33143-110#16852#16962
TOTALS13622212-850
📊

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