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BOSTON MARATHON 2023

Caitlyn Halloran

Bib: 27318•F

MA

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

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
31:08
Rank: #23492
Start → 5K
10:01/mi
31:08 split
10K· 6.21 mi
1:01:26
Rank: #23366 (+126)
5K → 10K
9:45/mi
30:18 split
15K· 9.32 mi
1:30:29
Rank: #22906 (+460)
10K → 15K
9:21/mi
29:03 split
20K· 12.43 mi
2:00:28
Rank: #22664 (+242)
15K → 20K
9:39/mi
29:59 split
Half· 13.11 mi
2:07:15
Rank: #22700 (-36)
20K → Half
9:57/mi
6:47 split
25K· 15.53 mi
2:30:21
Rank: #22422 (+278)
Half → 25K
9:32/mi
23:06 split
30K· 18.64 mi
3:01:33
Rank: #22187 (+235)
25K → 30K
10:03/mi
31:12 split
20M
3:15:49
Rank: #22131 (+56)
30K → 20M
10:30/mi
14:16 split
21M
3:27:11
Rank: #22106 (+25)
20M → 21M
11:22/mi
11:22 split
35K· 21.75 mi
3:34:34
Rank: #22060 (+46)
21M → 35K
9:52/mi
7:23 split
23M
3:47:10
Rank: #21961 (+99)
35K → 23M
10:04/mi
12:36 split
24M
3:56:47
Rank: #21865 (+96)
23M → 24M
9:37/mi
9:37 split
40K· 24.85 mi
4:05:27
Rank: #21807 (+58)
24M → 40K
10:08/mi
8:40 split
25.2M
4:09:46
Rank: #21835 (-28)
40K → 25.2M
12:31/mi
4:19 split
Finish· 26.22 mi
4:19:56
Rank: #21837 (-2)
25.2M → Finish
9:59/mi
10:10 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:07:15
Pace9:42 /mi
2nd Half
Distance13.11 mi
Time2:12:41
Pace10:07 /mi
📊Positive Split: 4.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:53:3331:0810:0131:08
10:01
-
10K
6.21 mi12:23:511:01:269:5330:18
9:45
-0:16
15K
9.32 mi12:52:541:30:299:4229:03
9:21
-0:24
20K
12.43 mi13:22:532:00:289:4229:59
9:39
+0:18
Half
13.11 mi13:29:402:07:159:426:47
9:57
+0:18
25K
15.53 mi13:52:462:30:219:4123:06
9:32
-0:25
30K
18.64 mi14:23:583:01:339:4431:12
10:03
+0:31
20M
20.00 mi14:38:143:15:499:4714:16
10:30
+0:27
21M
21.00 mi14:49:363:27:119:5211:22
11:22
+0:52
35K
21.75 mi14:56:593:34:349:527:23
9:52
-1:30
23M
23.00 mi15:09:353:47:109:5312:36
10:04
+0:12
24M
24.00 mi15:19:123:56:479:529:37
9:37
-0:27
40K
24.85 mi15:27:524:05:279:538:40
10:08
+0:31
25.2M
25.20 mi15:32:114:09:469:554:19
12:31
+2:23
Finish
26.22 mi15:42:214:19:569:5510:10
9:59
-2:32

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

9:21 /mi

Average Pace

9:55 /mi

Slowest Pace

12:31 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

52:09

20% of race

Time at Steady Pace

2:57:50

68% of race

Time at Slower Pace

29:57

12% of race

Average Pace: 9:55 /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 mi11:53:3331:0810:0131:08
10:01
#23492
10K
6.21 mi12:23:511:01:269:5330:18
9:45
#23366
15K
9.32 mi12:52:541:30:299:4229:03
9:21
#22906
20K
12.43 mi13:22:532:00:289:4229:59
9:39
#22664
Half
13.11 mi13:29:402:07:159:426:47
9:57
#22700
25K
15.53 mi13:52:462:30:219:4123:06
9:32
#22422
30K
18.64 mi14:23:583:01:339:4431:12
10:03
#22187
20M
20.00 mi14:38:143:15:499:4714:16
10:30
#22131
21M
21.00 mi14:49:363:27:119:5211:22
11:22
#22106
35K
21.75 mi14:56:593:34:349:527:23
9:52
#22060
23M
23.00 mi15:09:353:47:109:5312:36
10:04
#21961
24M
24.00 mi15:19:123:56:479:529:37
9:37
#21865
40K
24.85 mi15:27:524:05:279:538:40
10:08
#21807
25.2M
25.20 mi15:32:114:09:469:554:19
12:31
#21835
Finish
26.22 mi15:42:214:19:569:5510:10
9:59
#21837
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi234929643964321817(Top 82%)8684(Top 76%)8684(Top 178%)
10K6.21 mi3.10 mi23366+1269555+889555+8823166(Top 87%)9421(Top 82%)9421(Top 193%)
15K9.32 mi3.11 mi22906+4609299+2569299+25621817(Top 82%)8684(Top 76%)8684(Top 178%)
20K12.43 mi3.11 mi22664+2429171+1289171+12822018(Top 83%)8811(Top 77%)8811(Top 180%)
Half13.11 mi0.68 mi22700-369193-229193-2223160(Top 87%)9439(Top 83%)9439(Top 193%)
25K15.53 mi2.42 mi22422+2789064+1299064+12920935(Top 79%)8236(Top 72%)8236(Top 169%)
30K18.64 mi3.11 mi22187+2358939+1258939+12521154(Top 79%)8436(Top 74%)8436(Top 173%)
20M20.00 mi1.36 mi22131+568924+158924+1521732(Top 82%)8832(Top 77%)8832(Top 181%)
21M21.00 mi1.00 mi22106+258919+58919+521637(Top 81%)8799(Top 77%)8799(Top 180%)
35K21.75 mi0.75 mi22060+468893+268893+2620939(Top 79%)8463(Top 74%)8463(Top 173%)
23M23.00 mi1.25 mi21961+998843+508843+5020190(Top 76%)8074(Top 71%)8074(Top 165%)
24M24.00 mi1.00 mi21865+968807+368807+3619660(Top 74%)7795(Top 68%)7795(Top 160%)
40K24.85 mi0.85 mi21807+588792+158792+1520352(Top 76%)8257(Top 72%)8257(Top 169%)
25.2M25.20 mi0.35 mi21835-288811-198811-1923317(Top 88%)9830(Top 86%)9830(Top 201%)
Finish26.22 mi1.02 mi21837-28819-88819-821705(Top 82%)8960(Top 78%)8960(Top 183%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 82%
×21stories
+97ft-345ft

Overall

21817

Females

8684

F18-39

8684

5K→10K

3.1 - 6.2 mi

Top 87%
×5stories
+79ft-138ft

Overall

23166

Females

9421

F18-39

9421

10K→15K

6.2 - 9.3 mi

Top 82%
×3stories
+67ft-78ft

Overall

21817

Females

8684

F18-39

8684

15K→20K

9.3 - 12.4 mi

Top 83%
×5stories
+106ft-86ft

Overall

22018

Females

8811

F18-39

8811

20K→Half

12.4 - 13.1 mi

Top 87%
×2stories
+19ft-37ft

Overall

23160

Females

9439

F18-39

9439

Half→25K

13.1 - 15.5 mi

Top 79%
×4stories
+66ft-88ft

Overall

20935

Females

8236

F18-39

8236

25K→30K

15.5 - 18.6 mi

Top 79%
×9stories
+181ft-148ft

Overall

21154

Females

8436

F18-39

8436

30K→20M

18.6 - 20.0 mi

Top 82%
×5stories
+64ft-50ft

Overall

21732

Females

8832

F18-39

8832

20M→21M

20.0 - 21.0 mi

Top 81%
×8stories
+106ft-24ft

Overall

21637

Females

8799

F18-39

8799

21M→35K

21.0 - 21.8 mi

Top 79%
×7stories
+17ft-86ft

Overall

20939

Females

8463

F18-39

8463

35K→23M

21.8 - 23.0 mi

Top 76%
×5stories
+23ft-63ft

Overall

20190

Females

8074

F18-39

8074

23M→24M

23.0 - 24.0 mi

Top 74%
×6stories
+12ft-82ft

Overall

19660

Females

7795

F18-39

7795

24M→40K

24.0 - 24.9 mi

Top 76%
×1story
+6ft-20ft

Overall

20352

Females

8257

F18-39

8257

40K→25.2M

24.9 - 25.2 mi

Top 88%
×1story
+13ft-16ft

Overall

23317

Females

9830

F18-39

9830

25.2M→Finish

25.2 - 26.2 mi

Top 82%
×2stories
+22ft-21ft

Overall

21705

Females

8960

F18-39

8960

Passing Analysis

Category:
Athletes Passed
2119
Passed By
464
Net Change
+1655
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23492
5K → 10K278152+126#23492#23366
10K → 15K47515+460#23366#22906
15K → 20K28139+242#22906#22664
20K → Half642-36#22664#22700
Half → 25K2846+278#22700#22422
25K → 30K26126+235#22422#22187
30K → 20M9236+56#22187#22131
20M → 21M6641+25#22131#22106
21M → 35K537+46#22106#22060
35K → 23M11112+99#22060#21961
23M → 24M982+96#21961#21865
24M → 40K7315+58#21865#21807
40K → 25.2M1038-28#21807#21835
25.2M → Finish3133-2#21835#21837
TOTALS2119464+1655
📊

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