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BOSTON MARATHON 2024

Molly Colwell

Bib: 3811•F

MA

0:00
0:00
/ mi
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Overall
#0 / 25550
Top 4%
Gender (Female)
#0 / 10924
Top 0.4%
Division (F18-39)
#0 / 4660
Top 0.8%
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:34
Rank: #2107
Start → 5K
6:18/mi
19:34 split
10K· 6.21 mi
39:09
Rank: #1995 (+112)
5K → 10K
6:18/mi
19:35 split
15K· 9.32 mi
58:51
Rank: #1935 (+60)
10K → 15K
6:20/mi
19:42 split
20K· 12.43 mi
1:18:36
Rank: #1807 (+128)
15K → 20K
6:21/mi
19:45 split
Half· 13.11 mi
1:22:53
Rank: #1788 (+19)
20K → Half
6:17/mi
4:17 split
25K· 15.53 mi
1:38:15
Rank: #1634 (+154)
Half → 25K
6:20/mi
15:22 split
30K· 18.64 mi
1:58:05
Rank: #1393 (+241)
25K → 30K
6:23/mi
19:50 split
20M
2:06:46
Rank: #1289 (+104)
30K → 20M
6:23/mi
8:41 split
21M
2:14:07
Rank: #1279 (+10)
20M → 21M
7:21/mi
7:21 split
35K· 21.75 mi
2:18:50
Rank: #1243 (+36)
21M → 35K
6:18/mi
4:43 split
23M
2:27:02
Rank: #1172 (+71)
35K → 23M
6:33/mi
8:12 split
24M
2:33:24
Rank: #1126 (+46)
23M → 24M
6:22/mi
6:22 split
40K· 24.85 mi
2:38:55
Rank: #1076 (+50)
24M → 40K
6:27/mi
5:31 split
25.2M
2:41:33
Rank: #1069 (+7)
40K → 25.2M
7:38/mi
2:38 split
Finish· 26.22 mi
2:48:10
Rank: #1054 (+15)
25.2M → Finish
6:30/mi
6:37 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:22:53
Pace6:19 /mi
2nd Half
Distance13.11 mi
Time1:25:17
Pace6:30 /mi
📊Positive Split: 2.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:4019:346:1819:34
6:18
-
10K
6.21 mi10:41:1539:096:1819:35
6:18
0:00
15K
9.32 mi11:00:5758:516:1919:42
6:20
+0:02
20K
12.43 mi11:20:421:18:366:1919:45
6:21
+0:01
Half
13.11 mi11:24:591:22:536:194:17
6:17
-0:04
25K
15.53 mi11:40:211:38:156:1915:22
6:20
+0:03
30K
18.64 mi12:00:111:58:056:2019:50
6:23
+0:03
20M
20.00 mi12:08:522:06:466:208:41
6:23
0:00
21M
21.00 mi12:16:132:14:076:237:21
7:21
+0:58
35K
21.75 mi12:20:562:18:506:234:43
6:18
-1:03
23M
23.00 mi12:29:082:27:026:248:12
6:33
+0:15
24M
24.00 mi12:35:302:33:246:246:22
6:22
-0:11
40K
24.85 mi12:41:012:38:556:245:31
6:27
+0:05
25.2M
25.20 mi12:43:392:41:336:252:38
7:38
+1:11
Finish
26.22 mi12:50:162:48:106:256:37
6:30
-1:08

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

6:17 /mi

Average Pace

6:25 /mi

Slowest Pace

7:38 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

2:38:11

94% of race

Time at Slower Pace

9:59

6% of race

Average Pace: 6:25 /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 mi10:21:4019:346:1819:34
6:18
#2107
10K
6.21 mi10:41:1539:096:1819:35
6:18
#1995
15K
9.32 mi11:00:5758:516:1919:42
6:20
#1935
20K
12.43 mi11:20:421:18:366:1919:45
6:21
#1807
Half
13.11 mi11:24:591:22:536:194:17
6:17
#1788
25K
15.53 mi11:40:211:38:156:1915:22
6:20
#1634
30K
18.64 mi12:00:111:58:056:2019:50
6:23
#1393
20M
20.00 mi12:08:522:06:466:208:41
6:23
#1289
21M
21.00 mi12:16:132:14:076:237:21
7:21
#1279
35K
21.75 mi12:20:562:18:506:234:43
6:18
#1243
23M
23.00 mi12:29:082:27:026:248:12
6:33
#1172
24M
24.00 mi12:35:302:33:246:246:22
6:22
#1126
40K
24.85 mi12:41:012:38:556:245:31
6:27
#1076
25.2M
25.20 mi12:43:392:41:336:252:38
7:38
#1069
Finish
26.22 mi12:50:162:48:106:256:37
6:30
#1054
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi210761611934(Top 8%)57(Top 0.5%)57(Top 1%)
10K6.21 mi3.10 mi1995+11263-263-21942(Top 8%)59(Top 0.5%)59(Top 1%)
15K9.32 mi3.11 mi1935+6060+360+31934(Top 8%)57(Top 0.5%)57(Top 1%)
20K12.43 mi3.11 mi1807+12851+951+91582(Top 6%)49(Top 0.4%)49(Top 1%)
Half13.11 mi0.68 mi1788+1951511636(Top 6%)48(Top 0.4%)48(Top 1%)
25K15.53 mi2.42 mi1634+15449+249+21248(Top 5%)42(Top 0.4%)42(Top 0.9%)
30K18.64 mi3.11 mi1393+24145+445+4795(Top 3%)32(Top 0.3%)32(Top 0.7%)
20M20.00 mi1.36 mi1289+10443+243+2655(Top 3%)32(Top 0.3%)32(Top 0.7%)
21M21.00 mi1.00 mi1279+1043432040(Top 8%)140(Top 1%)140(Top 3%)
35K21.75 mi0.75 mi1243+364343856(Top 3%)43(Top 0.4%)43(Top 0.9%)
23M23.00 mi1.25 mi1172+7144-144-1785(Top 3%)41(Top 0.4%)41(Top 0.9%)
24M24.00 mi1.00 mi1126+464444724(Top 3%)40(Top 0.4%)40(Top 0.9%)
40K24.85 mi0.85 mi1076+504444673(Top 3%)44(Top 0.4%)44(Top 0.9%)
25.2M25.20 mi0.35 mi1069+744441787(Top 7%)180(Top 2%)180(Top 4%)
Finish26.22 mi1.02 mi1054+1544441395(Top 5%)120(Top 1%)120(Top 3%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 8%
×21stories
+97ft-345ft

Overall

1934

Females

57

F18-39

57

5K→10K

3.1 - 6.2 mi

Top 8%
×5stories
+79ft-138ft

Overall

1942

Females

59

F18-39

59

10K→15K

6.2 - 9.3 mi

Top 8%
×3stories
+67ft-78ft

Overall

1934

Females

57

F18-39

57

15K→20K

9.3 - 12.4 mi

Top 6%
×5stories
+106ft-86ft

Overall

1582

Females

49

F18-39

49

20K→Half

12.4 - 13.1 mi

Top 6%
×2stories
+19ft-37ft

Overall

1636

Females

48

F18-39

48

Half→25K

13.1 - 15.5 mi

Top 5%
×4stories
+66ft-88ft

Overall

1248

Females

42

F18-39

42

25K→30K

15.5 - 18.6 mi

Top 3%
×9stories
+181ft-148ft

Overall

795

Females

32

F18-39

32

30K→20M

18.6 - 20.0 mi

Top 3%
×5stories
+64ft-50ft

Overall

655

Females

32

F18-39

32

20M→21M

20.0 - 21.0 mi

Top 8%
×8stories
+106ft-24ft

Overall

2040

Females

140

F18-39

140

21M→35K

21.0 - 21.8 mi

Top 3%
×7stories
+17ft-86ft

Overall

856

Females

43

F18-39

43

35K→23M

21.8 - 23.0 mi

Top 3%
×5stories
+23ft-63ft

Overall

785

Females

41

F18-39

41

23M→24M

23.0 - 24.0 mi

Top 3%
×6stories
+12ft-82ft

Overall

724

Females

40

F18-39

40

24M→40K

24.0 - 24.9 mi

Top 3%
×1story
+6ft-20ft

Overall

673

Females

44

F18-39

44

40K→25.2M

24.9 - 25.2 mi

Top 7%
×1story
+13ft-16ft

Overall

1787

Females

180

F18-39

180

25.2M→Finish

25.2 - 26.2 mi

Top 5%
×2stories
+22ft-21ft

Overall

1395

Females

120

F18-39

120

Passing Analysis

Category:
Athletes Passed
1247
Passed By
194
Net Change
+1053
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2107
5K → 10K16856+112#2107#1995
10K → 15K11151+60#1995#1935
15K → 20K13911+128#1935#1807
20K → Half223+19#1807#1788
Half → 25K1639+154#1788#1634
25K → 30K2432+241#1634#1393
30K → 20M1040+104#1393#1289
20M → 21M3525+10#1289#1279
21M → 35K404+36#1279#1243
35K → 23M776+71#1243#1172
23M → 24M482+46#1172#1126
24M → 40K511+50#1126#1076
40K → 25.2M114+7#1076#1069
25.2M → Finish3520+15#1069#1054
TOTALS1247194+1053
📊

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