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BOSTON MARATHON 2024

Kelly Brozowski

Bib: 13771•F

NC

0:00
0:00
/ mi
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Overall
#0 / 25550
Gender (Female)
#0 / 10924
Division (F18-39)
#0 / 4660
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:35
Rank: #13987
Start → 5K
7:55/mi
24:35 split
10K· 6.21 mi
49:42
Rank: #14405 (-418)
5K → 10K
8:05/mi
25:07 split
15K· 9.32 mi
1:15:16
Rank: #14559 (-154)
10K → 15K
8:14/mi
25:34 split
20K· 12.43 mi
1:41:54
Rank: #14725 (-166)
15K → 20K
8:34/mi
26:38 split
Half· 13.11 mi
1:47:46
Rank: #14812 (-87)
20K → Half
8:36/mi
5:52 split
25K· 15.53 mi
2:10:35
Rank: #15255 (-443)
Half → 25K
9:25/mi
22:49 split
30K· 18.64 mi
2:42:42
Rank: #16048 (-793)
25K → 30K
10:20/mi
32:07 split
20M
2:57:12
Rank: #16304 (-256)
30K → 20M
10:40/mi
14:30 split
21M
3:09:18
Rank: #16600 (-296)
20M → 21M
12:06/mi
12:06 split
35K· 21.75 mi
3:16:18
Rank: #16552 (+48)
21M → 35K
9:21/mi
7:00 split
23M
3:30:23
Rank: #16780 (-228)
35K → 23M
11:15/mi
14:05 split
24M
3:40:24
Rank: #16767 (+13)
23M → 24M
10:01/mi
10:01 split
40K· 24.85 mi
3:49:14
Rank: #16710 (+57)
24M → 40K
10:20/mi
8:50 split
25.2M
3:53:34
Rank: #16769 (-59)
40K → 25.2M
12:34/mi
4:20 split
Finish· 26.22 mi
4:04:26
Rank: #16919 (-150)
25.2M → Finish
10:40/mi
10:52 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:47:46
Pace8:13 /mi
2nd Half
Distance13.11 mi
Time2:16:40
Pace10:26 /mi
📊Positive Split: 26.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:54:1524:357:5524:35
7:55
-
10K
6.21 mi11:19:2249:428:0025:07
8:05
+0:10
15K
9.32 mi11:44:561:15:168:0525:34
8:14
+0:09
20K
12.43 mi12:11:341:41:548:1226:38
8:34
+0:20
Half
13.11 mi12:17:261:47:468:135:52
8:36
+0:02
25K
15.53 mi12:40:152:10:358:2422:49
9:25
+0:49
30K
18.64 mi13:12:222:42:428:4432:07
10:20
+0:55
20M
20.00 mi13:26:522:57:128:5214:30
10:40
+0:20
21M
21.00 mi13:38:583:09:189:0112:06
12:06
+1:26
35K
21.75 mi13:45:583:16:189:027:00
9:21
-2:45
23M
23.00 mi14:00:033:30:239:0914:05
11:15
+1:54
24M
24.00 mi14:10:043:40:249:1110:01
10:01
-1:14
40K
24.85 mi14:18:543:49:149:138:50
10:20
+0:19
25.2M
25.20 mi14:23:143:53:349:164:20
12:34
+2:14
Finish
26.22 mi14:34:064:04:269:2010:52
10:40
-1:54

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

7:55 /mi

Average Pace

9:20 /mi

Slowest Pace

12:34 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:47:46

44% of race

Time at Steady Pace

1:46:09

43% of race

Time at Slower Pace

30:31

12% of race

Average Pace: 9:19 /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 mi10:54:1524:357:5524:35
7:55
#13987
10K
6.21 mi11:19:2249:428:0025:07
8:05
#14405
15K
9.32 mi11:44:561:15:168:0525:34
8:14
#14559
20K
12.43 mi12:11:341:41:548:1226:38
8:34
#14725
Half
13.11 mi12:17:261:47:468:135:52
8:36
#14812
25K
15.53 mi12:40:152:10:358:2422:49
9:25
#15255
30K
18.64 mi13:12:222:42:428:4432:07
10:20
#16048
20M
20.00 mi13:26:522:57:128:5214:30
10:40
#16304
21M
21.00 mi13:38:583:09:189:0112:06
12:06
#16600
35K
21.75 mi13:45:583:16:189:027:00
9:21
#16552
23M
23.00 mi14:00:033:30:239:0914:05
11:15
#16780
24M
24.00 mi14:10:043:40:249:1110:01
10:01
#16767
40K
24.85 mi14:18:543:49:149:138:50
10:20
#16710
25.2M
25.20 mi14:23:143:53:349:164:20
12:34
#16769
Finish
26.22 mi14:34:064:04:269:2010:52
10:40
#16919
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi139874305430514895(Top 58%)4906(Top 45%)4906(Top 105%)
10K6.21 mi3.10 mi14405-4184578-2734578-27314786(Top 58%)4801(Top 44%)4801(Top 103%)
15K9.32 mi3.11 mi14559-1544674-964674-9614895(Top 58%)4906(Top 45%)4906(Top 105%)
20K12.43 mi3.11 mi14725-1664793-1194793-11915201(Top 59%)5130(Top 47%)5130(Top 110%)
Half13.11 mi0.68 mi14812-874847-544847-5416326(Top 64%)5834(Top 53%)5834(Top 125%)
25K15.53 mi2.42 mi15255-4435154-3075154-30717235(Top 67%)6405(Top 59%)6405(Top 137%)
30K18.64 mi3.11 mi16048-7935700-5465700-54618351(Top 72%)7226(Top 66%)7226(Top 155%)
20M20.00 mi1.36 mi16304-2565888-1885888-18818493(Top 72%)7451(Top 68%)7451(Top 160%)
21M21.00 mi1.00 mi16600-2966083-1956083-19519051(Top 75%)7832(Top 72%)7832(Top 168%)
35K21.75 mi0.75 mi16552+486074+96074+914980(Top 59%)5838(Top 53%)5838(Top 125%)
23M23.00 mi1.25 mi16780-2286250-1766250-17619066(Top 75%)7919(Top 72%)7919(Top 170%)
24M24.00 mi1.00 mi16767+136268-186268-1816403(Top 64%)6644(Top 61%)6644(Top 143%)
40K24.85 mi0.85 mi16710+576267+16267+116165(Top 63%)6582(Top 60%)6582(Top 141%)
25.2M25.20 mi0.35 mi16769-596315-486315-4818682(Top 73%)7850(Top 72%)7850(Top 168%)
Finish26.22 mi1.02 mi16919-1506434-1196434-11920470(Top 80%)8709(Top 80%)8709(Top 187%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 58%
×21stories
+97ft-345ft

Overall

14895

Females

4906

F18-39

4906

5K→10K

3.1 - 6.2 mi

Top 58%
×5stories
+79ft-138ft

Overall

14786

Females

4801

F18-39

4801

10K→15K

6.2 - 9.3 mi

Top 58%
×3stories
+67ft-78ft

Overall

14895

Females

4906

F18-39

4906

15K→20K

9.3 - 12.4 mi

Top 59%
×5stories
+106ft-86ft

Overall

15201

Females

5130

F18-39

5130

20K→Half

12.4 - 13.1 mi

Top 64%
×2stories
+19ft-37ft

Overall

16326

Females

5834

F18-39

5834

Half→25K

13.1 - 15.5 mi

Top 67%
×4stories
+66ft-88ft

Overall

17235

Females

6405

F18-39

6405

25K→30K

15.5 - 18.6 mi

Top 72%
×9stories
+181ft-148ft

Overall

18351

Females

7226

F18-39

7226

30K→20M

18.6 - 20.0 mi

Top 72%
×5stories
+64ft-50ft

Overall

18493

Females

7451

F18-39

7451

20M→21M

20.0 - 21.0 mi

Top 75%
×8stories
+106ft-24ft

Overall

19051

Females

7832

F18-39

7832

21M→35K

21.0 - 21.8 mi

Top 59%
×7stories
+17ft-86ft

Overall

14980

Females

5838

F18-39

5838

35K→23M

21.8 - 23.0 mi

Top 75%
×5stories
+23ft-63ft

Overall

19066

Females

7919

F18-39

7919

23M→24M

23.0 - 24.0 mi

Top 64%
×6stories
+12ft-82ft

Overall

16403

Females

6644

F18-39

6644

24M→40K

24.0 - 24.9 mi

Top 63%
×1story
+6ft-20ft

Overall

16165

Females

6582

F18-39

6582

40K→25.2M

24.9 - 25.2 mi

Top 73%
×1story
+13ft-16ft

Overall

18682

Females

7850

F18-39

7850

25.2M→Finish

25.2 - 26.2 mi

Top 80%
×2stories
+22ft-21ft

Overall

20470

Females

8709

F18-39

8709

Passing Analysis

Category:
Athletes Passed
1209
Passed By
4141
Net Change
-2932
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13987
5K → 10K144562-418#13987#14405
10K → 15K189343-154#14405#14559
15K → 20K185351-166#14559#14725
20K → Half21108-87#14725#14812
Half → 25K102545-443#14812#15255
25K → 30K82875-793#15255#16048
30K → 20M60316-256#16048#16304
20M → 21M29325-296#16304#16600
21M → 35K9244+48#16600#16552
35K → 23M49277-228#16552#16780
23M → 24M8774+13#16780#16767
24M → 40K10245+57#16767#16710
40K → 25.2M2483-59#16710#16769
25.2M → Finish43193-150#16769#16919
TOTALS12094141-2932
📊

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