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BOSTON MARATHON 2024

Chelsea Glubish

Bib: 12403•F

BC

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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
26:21
Rank: #17685
Start → 5K
26:21 | 8:29/mi
10K· 6.21 mi
53:51
Rank: #18425 (-740)
5K → 10K
27:30 | 8:51/mi
15K· 9.32 mi
1:23:07
Rank: #19215 (-790)
10K → 15K
29:16 | 9:25/mi
20K· 12.43 mi
1:54:51
Rank: #19906 (-691)
15K → 20K
31:44 | 10:13/mi
Half· 13.11 mi
2:01:04
Rank: #19865 (+41)
20K → Half
6:13 | 9:07/mi
25K· 15.53 mi
2:26:51
Rank: #20029 (-164)
Half → 25K
25:47 | 10:38/mi
30K· 18.64 mi
3:02:39
Rank: #20223 (-194)
25K → 30K
35:48 | 11:31/mi
20M
3:17:31
Rank: #20141 (+82)
30K → 20M
14:52 | 10:56/mi
21M
3:30:52
Rank: #20225 (-84)
20M → 21M
13:21 | 13:21/mi
35K· 21.75 mi
3:39:14
Rank: #20213 (+12)
21M → 35K
8:22 | 11:11/mi
23M
3:53:23
Rank: #20160 (+53)
35K → 23M
14:09 | 11:18/mi
24M
4:03:51
Rank: #20031 (+129)
23M → 24M
10:28 | 10:28/mi
40K· 24.85 mi
4:14:55
Rank: #20132 (-101)
24M → 40K
11:04 | 12:57/mi
25.2M
4:19:55
Rank: #20170 (-38)
40K → 25.2M
5:00 | 14:30/mi
Finish· 26.22 mi
4:31:20
Rank: #20245 (-75)
25.2M → Finish
11:25 | 11:12/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:01:04
Pace9:14 /mi
2nd Half
Distance13.11 mi
Time2:30:16
Pace11:28 /mi
📊Positive Split: 24.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:22:1926:218:2926:21
8:29
-
10K
6.21 mi11:49:4953:518:4027:30
8:51
+0:22
15K
9.32 mi12:19:051:23:078:5529:16
9:25
+0:34
20K
12.43 mi12:50:491:54:519:1431:44
10:13
+0:48
Half
13.11 mi12:57:022:01:049:146:13
9:07
-1:06
25K
15.53 mi13:22:492:26:519:2725:47
10:38
+1:31
30K
18.64 mi13:58:373:02:399:4835:48
11:31
+0:53
20M
20.00 mi14:13:293:17:319:5314:52
10:56
-0:35
21M
21.00 mi14:26:503:30:5210:0213:21
13:21
+2:25
35K
21.75 mi14:35:123:39:1410:058:22
11:11
-2:10
23M
23.00 mi14:49:213:53:2310:0914:09
11:18
+0:07
24M
24.00 mi14:59:494:03:5110:1010:28
10:28
-0:50
40K
24.85 mi15:10:534:14:5510:1511:04
12:57
+2:29
25.2M
25.20 mi15:15:534:19:5510:195:00
14:30
+1:33
Finish
26.22 mi15:27:184:31:2010:2111:25
11:12
-3:18

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

8:29 /mi

Average Pace

10:21 /mi

Slowest Pace

14:30 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:29:20

33% of race

Time at Steady Pace

2:32:35

56% of race

Time at Slower Pace

29:25

11% of race

Average Pace: 10:21 /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 mi11:22:1926:218:2926:21
8:29
#17685
10K
6.21 mi11:49:4953:518:4027:30
8:51
#18425
15K
9.32 mi12:19:051:23:078:5529:16
9:25
#19215
20K
12.43 mi12:50:491:54:519:1431:44
10:13
#19906
Half
13.11 mi12:57:022:01:049:146:13
9:07
#19865
25K
15.53 mi13:22:492:26:519:2725:47
10:38
#20029
30K
18.64 mi13:58:373:02:399:4835:48
11:31
#20223
20M
20.00 mi14:13:293:17:319:5314:52
10:56
#20141
21M
21.00 mi14:26:503:30:5210:0213:21
13:21
#20225
35K
21.75 mi14:35:123:39:1410:058:22
11:11
#20213
23M
23.00 mi14:49:213:53:2310:0914:09
11:18
#20160
24M
24.00 mi14:59:494:03:5110:1010:28
10:28
#20031
40K
24.85 mi15:10:534:14:5510:1511:04
12:57
#20132
25.2M
25.20 mi15:15:534:19:5510:195:00
14:30
#20170
Finish
26.22 mi15:27:184:31:2010:2111:25
11:12
#20245
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi176856578657820440(Top 80%)8028(Top 73%)8028(Top 172%)
10K6.21 mi3.10 mi18425-7407007-4297007-42919123(Top 75%)7361(Top 67%)7361(Top 158%)
15K9.32 mi3.11 mi19215-7907414-4077414-40720440(Top 80%)8028(Top 73%)8028(Top 172%)
20K12.43 mi3.11 mi19906-6917779-3657779-36521041(Top 82%)8380(Top 77%)8380(Top 180%)
Half13.11 mi0.68 mi19865+417758+217758+2118789(Top 74%)7223(Top 66%)7223(Top 155%)
25K15.53 mi2.42 mi20029-1647849-917849-9120730(Top 81%)8321(Top 76%)8321(Top 179%)
30K18.64 mi3.11 mi20223-1948006-1578006-15721065(Top 82%)8671(Top 79%)8671(Top 186%)
20M20.00 mi1.36 mi20141+827995+117995+1119149(Top 75%)7779(Top 71%)7779(Top 167%)
21M21.00 mi1.00 mi20225-848071-768071-7621321(Top 83%)8948(Top 82%)8948(Top 192%)
35K21.75 mi0.75 mi20213+128081-108081-1020203(Top 79%)8455(Top 77%)8455(Top 181%)
23M23.00 mi1.25 mi20160+538075+68075+619189(Top 75%)7984(Top 73%)7984(Top 171%)
24M24.00 mi1.00 mi20031+1298028+478028+4717771(Top 70%)7356(Top 67%)7356(Top 158%)
40K24.85 mi0.85 mi20132-1018102-748102-7422175(Top 87%)9539(Top 87%)9539(Top 205%)
25.2M25.20 mi0.35 mi20170-388131-298131-2922368(Top 88%)9631(Top 88%)9631(Top 207%)
Finish26.22 mi1.02 mi20245-758184-538184-5321853(Top 86%)9378(Top 86%)9378(Top 201%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 80%
×21stories
+97ft-345ft

Overall

20440

Females

8028

F18-39

8028

5K→10K

3.1 - 6.2 mi

Top 75%
×5stories
+79ft-138ft

Overall

19123

Females

7361

F18-39

7361

10K→15K

6.2 - 9.3 mi

Top 80%
×3stories
+67ft-78ft

Overall

20440

Females

8028

F18-39

8028

15K→20K

9.3 - 12.4 mi

Top 82%
×5stories
+106ft-86ft

Overall

21041

Females

8380

F18-39

8380

20K→Half

12.4 - 13.1 mi

Top 74%
×2stories
+19ft-37ft

Overall

18789

Females

7223

F18-39

7223

Half→25K

13.1 - 15.5 mi

Top 81%
×4stories
+66ft-88ft

Overall

20730

Females

8321

F18-39

8321

25K→30K

15.5 - 18.6 mi

Top 82%
×9stories
+181ft-148ft

Overall

21065

Females

8671

F18-39

8671

30K→20M

18.6 - 20.0 mi

Top 75%
×5stories
+64ft-50ft

Overall

19149

Females

7779

F18-39

7779

20M→21M

20.0 - 21.0 mi

Top 83%
×8stories
+106ft-24ft

Overall

21321

Females

8948

F18-39

8948

21M→35K

21.0 - 21.8 mi

Top 79%
×7stories
+17ft-86ft

Overall

20203

Females

8455

F18-39

8455

35K→23M

21.8 - 23.0 mi

Top 75%
×5stories
+23ft-63ft

Overall

19189

Females

7984

F18-39

7984

23M→24M

23.0 - 24.0 mi

Top 70%
×6stories
+12ft-82ft

Overall

17771

Females

7356

F18-39

7356

24M→40K

24.0 - 24.9 mi

Top 87%
×1story
+6ft-20ft

Overall

22175

Females

9539

F18-39

9539

40K→25.2M

24.9 - 25.2 mi

Top 88%
×1story
+13ft-16ft

Overall

22368

Females

9631

F18-39

9631

25.2M→Finish

25.2 - 26.2 mi

Top 86%
×2stories
+22ft-21ft

Overall

21853

Females

9378

F18-39

9378

Passing Analysis

Category:
Athletes Passed
1060
Passed By
3620
Net Change
-2560
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17685
5K → 10K82822-740#17685#18425
10K → 15K56846-790#18425#19215
15K → 20K85776-691#19215#19906
20K → Half5514+41#19906#19865
Half → 25K114278-164#19865#20029
25K → 30K96290-194#20029#20223
30K → 20M12947+82#20223#20141
20M → 21M49133-84#20141#20225
21M → 35K5139+12#20225#20213
35K → 23M10956+53#20213#20160
23M → 24M14011+129#20160#20031
24M → 40K36137-101#20031#20132
40K → 25.2M2159-38#20132#20170
25.2M → Finish37112-75#20170#20245
TOTALS10603620-2560
📊

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