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BOSTON MARATHON 2024

Brooke Sizer

Bib: 7966•F

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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
22:44
Rank: #9332
Start → 5K
22:44 | 7:19/mi
10K· 6.21 mi
47:11
Rank: #11249 (-1917)
5K → 10K
24:27 | 7:52/mi
15K· 9.32 mi
1:13:23
Rank: #13096 (-1847)
10K → 15K
26:12 | 8:26/mi
20K· 12.43 mi
1:42:57
Rank: #15220 (-2124)
15K → 20K
29:34 | 9:31/mi
Half· 13.11 mi
1:48:54
Rank: #15276 (-56)
20K → Half
5:57 | 8:43/mi
25K· 15.53 mi
2:13:44
Rank: #16343 (-1067)
Half → 25K
24:50 | 10:15/mi
30K· 18.64 mi
2:46:55
Rank: #17138 (-795)
25K → 30K
33:11 | 10:41/mi
20M
3:01:34
Rank: #17349 (-211)
30K → 20M
14:39 | 10:47/mi
21M
3:13:27
Rank: #17496 (-147)
20M → 21M
11:53 | 11:53/mi
35K· 21.75 mi
3:20:39
Rank: #17430 (+66)
21M → 35K
7:12 | 9:37/mi
23M
3:33:48
Rank: #17422 (+8)
35K → 23M
13:09 | 10:30/mi
24M
3:43:56
Rank: #17399 (+23)
23M → 24M
10:08 | 10:08/mi
40K· 24.85 mi
3:52:59
Rank: #17358 (+41)
24M → 40K
9:03 | 10:35/mi
25.2M
3:59:41
Rank: #17694 (-336)
40K → 25.2M
6:42 | 19:26/mi
Finish· 26.22 mi
4:15:50
Rank: #18463 (-769)
25.2M → Finish
16:09 | 15:51/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:48:54
Pace8:18 /mi
2nd Half
Distance13.11 mi
Time2:26:56
Pace11:13 /mi
📊Positive Split: 34.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:30:3922:447:1922:44
7:19
-
10K
6.21 mi10:55:0647:117:3624:27
7:52
+0:33
15K
9.32 mi11:21:181:13:237:5226:12
8:26
+0:34
20K
12.43 mi11:50:521:42:578:1729:34
9:31
+1:05
Half
13.11 mi11:56:491:48:548:185:57
8:43
-0:48
25K
15.53 mi12:21:392:13:448:3724:50
10:15
+1:32
30K
18.64 mi12:54:502:46:558:5733:11
10:41
+0:26
20M
20.00 mi13:09:293:01:349:0514:39
10:47
+0:06
21M
21.00 mi13:21:223:13:279:1311:53
11:53
+1:06
35K
21.75 mi13:28:343:20:399:147:12
9:37
-2:16
23M
23.00 mi13:41:433:33:489:1813:09
10:30
+0:53
24M
24.00 mi13:51:513:43:569:2010:08
10:08
-0:22
40K
24.85 mi14:00:543:52:599:229:03
10:35
+0:27
25.2M
25.20 mi14:07:363:59:419:316:42
19:26
+8:51
Finish
26.22 mi14:23:454:15:509:4616:09
15:51
-3:35

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

7:19 /mi

Average Pace

9:46 /mi

Slowest Pace

19:26 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:19:20

31% of race

Time at Steady Pace

2:21:46

55% of race

Time at Slower Pace

34:44

14% of race

Average Pace: 9:45 /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 mi10:30:3922:447:1922:44
7:19
#9332
10K
6.21 mi10:55:0647:117:3624:27
7:52
#11249
15K
9.32 mi11:21:181:13:237:5226:12
8:26
#13096
20K
12.43 mi11:50:521:42:578:1729:34
9:31
#15220
Half
13.11 mi11:56:491:48:548:185:57
8:43
#15276
25K
15.53 mi12:21:392:13:448:3724:50
10:15
#16343
30K
18.64 mi12:54:502:46:558:5733:11
10:41
#17138
20M
20.00 mi13:09:293:01:349:0514:39
10:47
#17349
21M
21.00 mi13:21:223:13:279:1311:53
11:53
#17496
35K
21.75 mi13:28:343:20:399:147:12
9:37
#17430
23M
23.00 mi13:41:433:33:489:1813:09
10:30
#17422
24M
24.00 mi13:51:513:43:569:2010:08
10:08
#17399
40K
24.85 mi14:00:543:52:599:229:03
10:35
#17358
25.2M
25.20 mi14:07:363:59:419:316:42
19:26
#17694
Finish
26.22 mi14:23:454:15:509:4616:09
15:51
#18463
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi93321722172216041(Top 63%)5581(Top 51%)5581(Top 120%)
10K6.21 mi3.10 mi11249-19172741-10192741-101913222(Top 52%)3891(Top 36%)3891(Top 83%)
15K9.32 mi3.11 mi13096-18473814-10733814-107316041(Top 63%)5581(Top 51%)5581(Top 120%)
20K12.43 mi3.11 mi15220-21245092-12785092-127819262(Top 75%)7412(Top 68%)7412(Top 159%)
Half13.11 mi0.68 mi15276-565123-315123-3117001(Top 67%)6232(Top 57%)6232(Top 134%)
25K15.53 mi2.42 mi16343-10675807-6845807-68419766(Top 77%)7796(Top 71%)7796(Top 167%)
30K18.64 mi3.11 mi17138-7956336-5296336-52919219(Top 75%)7699(Top 70%)7699(Top 165%)
20M20.00 mi1.36 mi17349-2116488-1526488-15218744(Top 73%)7587(Top 69%)7587(Top 163%)
21M21.00 mi1.00 mi17496-1476604-1166604-11618555(Top 73%)7599(Top 70%)7599(Top 163%)
35K21.75 mi0.75 mi17430+666584+206584+2015972(Top 63%)6347(Top 58%)6347(Top 136%)
23M23.00 mi1.25 mi17422+86604-206604-2017074(Top 67%)6948(Top 64%)6948(Top 149%)
24M24.00 mi1.00 mi17399+236617-136617-1316776(Top 66%)6836(Top 63%)6836(Top 147%)
40K24.85 mi0.85 mi17358+416631-146631-1416947(Top 66%)7001(Top 64%)7001(Top 150%)
25.2M25.20 mi0.35 mi17694-3366825-1946825-19425308(Top 99%)10856(Top 99%)10856(Top 233%)
Finish26.22 mi1.02 mi18463-7697253-4287253-42825321(Top 99%)10874(Top 100%)10874(Top 233%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 63%
×21stories
+97ft-345ft

Overall

16041

Females

5581

F18-39

5581

5K→10K

3.1 - 6.2 mi

Top 52%
×5stories
+79ft-138ft

Overall

13222

Females

3891

F18-39

3891

10K→15K

6.2 - 9.3 mi

Top 63%
×3stories
+67ft-78ft

Overall

16041

Females

5581

F18-39

5581

15K→20K

9.3 - 12.4 mi

Top 75%
×5stories
+106ft-86ft

Overall

19262

Females

7412

F18-39

7412

20K→Half

12.4 - 13.1 mi

Top 67%
×2stories
+19ft-37ft

Overall

17001

Females

6232

F18-39

6232

Half→25K

13.1 - 15.5 mi

Top 77%
×4stories
+66ft-88ft

Overall

19766

Females

7796

F18-39

7796

25K→30K

15.5 - 18.6 mi

Top 75%
×9stories
+181ft-148ft

Overall

19219

Females

7699

F18-39

7699

30K→20M

18.6 - 20.0 mi

Top 73%
×5stories
+64ft-50ft

Overall

18744

Females

7587

F18-39

7587

20M→21M

20.0 - 21.0 mi

Top 73%
×8stories
+106ft-24ft

Overall

18555

Females

7599

F18-39

7599

21M→35K

21.0 - 21.8 mi

Top 63%
×7stories
+17ft-86ft

Overall

15972

Females

6347

F18-39

6347

35K→23M

21.8 - 23.0 mi

Top 67%
×5stories
+23ft-63ft

Overall

17074

Females

6948

F18-39

6948

23M→24M

23.0 - 24.0 mi

Top 66%
×6stories
+12ft-82ft

Overall

16776

Females

6836

F18-39

6836

24M→40K

24.0 - 24.9 mi

Top 66%
×1story
+6ft-20ft

Overall

16947

Females

7001

F18-39

7001

40K→25.2M

24.9 - 25.2 mi

Top 99%
×1story
+13ft-16ft

Overall

25308

Females

10856

F18-39

10856

25.2M→Finish

25.2 - 26.2 mi

Top 99%
×2stories
+22ft-21ft

Overall

25321

Females

10874

F18-39

10874

Passing Analysis

Category:
Athletes Passed
729
Passed By
9858
Net Change
-9131
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9332
5K → 10K161931-1917#9332#11249
10K → 15K151862-1847#11249#13096
15K → 20K202144-2124#13096#15220
20K → Half2783-56#15220#15276
Half → 25K551122-1067#15276#16343
25K → 30K70865-795#16343#17138
30K → 20M60271-211#17138#17349
20M → 21M61208-147#17349#17496
21M → 35K9529+66#17496#17430
35K → 23M120112+8#17430#17422
23M → 24M7653+23#17422#17399
24M → 40K9857+41#17399#17358
40K → 25.2M3339-336#17358#17694
25.2M → Finish13782-769#17694#18463
TOTALS7299858-9131
📊

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