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BOSTON MARATHON 2024

Madelynn Harlow

Bib: 24760•F

VT

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
27:12
Rank: #19089
Start → 5K
27:12 | 8:45/mi
10K· 6.21 mi
55:12
Rank: #19418 (-329)
5K → 10K
28:00 | 9:01/mi
15K· 9.32 mi
1:23:22
Rank: #19343 (+75)
10K → 15K
28:10 | 9:04/mi
20K· 12.43 mi
1:52:22
Rank: #19155 (+188)
15K → 20K
29:00 | 9:20/mi
Half· 13.11 mi
1:58:46
Rank: #19176 (-21)
20K → Half
6:24 | 9:23/mi
25K· 15.53 mi
2:22:11
Rank: #18964 (+212)
Half → 25K
23:25 | 9:39/mi
30K· 18.64 mi
2:55:24
Rank: #19050 (-86)
25K → 30K
33:13 | 10:41/mi
20M
3:10:57
Rank: #19171 (-121)
30K → 20M
15:33 | 11:27/mi
21M
3:26:51
Rank: #19672 (-501)
20M → 21M
15:54 | 15:54/mi
35K· 21.75 mi
3:38:23
Rank: #20124 (-452)
21M → 35K
11:32 | 15:25/mi
23M
3:57:03
Rank: #20568 (-444)
35K → 23M
18:40 | 14:55/mi
24M
4:11:36
Rank: #20858 (-290)
23M → 24M
14:33 | 14:33/mi
40K· 24.85 mi
4:23:53
Rank: #21016 (-158)
24M → 40K
12:17 | 14:22/mi
25.2M
4:29:22
Rank: #21092 (-76)
40K → 25.2M
5:29 | 15:54/mi
Finish· 26.22 mi
4:41:10
Rank: #21154 (-62)
25.2M → Finish
11:48 | 11:35/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:58:46
Pace9:04 /mi
2nd Half
Distance13.11 mi
Time2:42:24
Pace12:23 /mi
📊Positive Split: 36.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:42:1727:128:4527:12
8:45
-
10K
6.21 mi12:10:1755:128:5328:00
9:01
+0:16
15K
9.32 mi12:38:271:23:228:5728:10
9:04
+0:03
20K
12.43 mi13:07:271:52:229:0329:00
9:20
+0:16
Half
13.11 mi13:13:511:58:469:046:24
9:23
+0:03
25K
15.53 mi13:37:162:22:119:0923:25
9:39
+0:16
30K
18.64 mi14:10:292:55:249:2533:13
10:41
+1:02
20M
20.00 mi14:26:023:10:579:3315:33
11:27
+0:46
21M
21.00 mi14:41:563:26:519:5115:54
15:54
+4:27
35K
21.75 mi14:53:283:38:2310:0211:32
15:25
-0:29
23M
23.00 mi15:12:083:57:0310:1818:40
14:55
-0:30
24M
24.00 mi15:26:414:11:3610:2914:33
14:33
-0:22
40K
24.85 mi15:38:584:23:5310:3712:17
14:22
-0:11
25.2M
25.20 mi15:44:274:29:2210:415:29
15:54
+1:32
Finish
26.22 mi15:56:154:41:1010:4411:48
11:35
-4:19

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

8:45 /mi

Average Pace

10:44 /mi

Slowest Pace

15:54 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:22:11

51% of race

Time at Steady Pace

1:00:34

22% of race

Time at Slower Pace

1:18:25

28% of race

Average Pace: 10:43 /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 mi11:42:1727:128:4527:12
8:45
#19089
10K
6.21 mi12:10:1755:128:5328:00
9:01
#19418
15K
9.32 mi12:38:271:23:228:5728:10
9:04
#19343
20K
12.43 mi13:07:271:52:229:0329:00
9:20
#19155
Half
13.11 mi13:13:511:58:469:046:24
9:23
#19176
25K
15.53 mi13:37:162:22:119:0923:25
9:39
#18964
30K
18.64 mi14:10:292:55:249:2533:13
10:41
#19050
20M
20.00 mi14:26:023:10:579:3315:33
11:27
#19171
21M
21.00 mi14:41:563:26:519:5115:54
15:54
#19672
35K
21.75 mi14:53:283:38:2310:0211:32
15:25
#20124
23M
23.00 mi15:12:083:57:0310:1818:40
14:55
#20568
24M
24.00 mi15:26:414:11:3610:2914:33
14:33
#20858
40K
24.85 mi15:38:584:23:5310:3712:17
14:22
#21016
25.2M
25.20 mi15:44:274:29:2210:415:29
15:54
#21092
Finish
26.22 mi15:56:154:41:1010:4411:48
11:35
#21154
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi190897411741119196(Top 75%)7357(Top 67%)7357(Top 158%)
10K6.21 mi3.10 mi19418-3297544-1337544-13319800(Top 77%)7731(Top 71%)7731(Top 166%)
15K9.32 mi3.11 mi19343+757478+667478+6619196(Top 75%)7357(Top 67%)7357(Top 158%)
20K12.43 mi3.11 mi19155+1887386+927386+9218662(Top 73%)7087(Top 65%)7087(Top 152%)
Half13.11 mi0.68 mi19176-217395-97395-919714(Top 77%)7735(Top 71%)7735(Top 166%)
25K15.53 mi2.42 mi18964+2127293+1027293+10218081(Top 71%)6877(Top 63%)6877(Top 148%)
30K18.64 mi3.11 mi19050-867396-1037396-10319252(Top 75%)7713(Top 71%)7713(Top 166%)
20M20.00 mi1.36 mi19171-1217496-1007496-10020287(Top 79%)8374(Top 77%)8374(Top 180%)
21M21.00 mi1.00 mi19672-5017776-2807776-28024407(Top 96%)10459(Top 96%)10459(Top 224%)
35K21.75 mi0.75 mi20124-4528031-2558031-25525022(Top 98%)10752(Top 98%)10752(Top 231%)
23M23.00 mi1.25 mi20568-4448302-2718302-27124592(Top 96%)10565(Top 97%)10565(Top 227%)
24M24.00 mi1.00 mi20858-2908479-1778479-17724602(Top 96%)10612(Top 97%)10612(Top 228%)
40K24.85 mi0.85 mi21016-1588573-948573-9424016(Top 94%)10385(Top 95%)10385(Top 223%)
25.2M25.20 mi0.35 mi21092-768621-488621-4823976(Top 94%)10357(Top 95%)10357(Top 222%)
Finish26.22 mi1.02 mi21154-628666-458666-4522574(Top 88%)9734(Top 89%)9734(Top 209%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 75%
×21stories
+97ft-345ft

Overall

19196

Females

7357

F18-39

7357

5K→10K

3.1 - 6.2 mi

Top 77%
×5stories
+79ft-138ft

Overall

19800

Females

7731

F18-39

7731

10K→15K

6.2 - 9.3 mi

Top 75%
×3stories
+67ft-78ft

Overall

19196

Females

7357

F18-39

7357

15K→20K

9.3 - 12.4 mi

Top 73%
×5stories
+106ft-86ft

Overall

18662

Females

7087

F18-39

7087

20K→Half

12.4 - 13.1 mi

Top 77%
×2stories
+19ft-37ft

Overall

19714

Females

7735

F18-39

7735

Half→25K

13.1 - 15.5 mi

Top 71%
×4stories
+66ft-88ft

Overall

18081

Females

6877

F18-39

6877

25K→30K

15.5 - 18.6 mi

Top 75%
×9stories
+181ft-148ft

Overall

19252

Females

7713

F18-39

7713

30K→20M

18.6 - 20.0 mi

Top 79%
×5stories
+64ft-50ft

Overall

20287

Females

8374

F18-39

8374

20M→21M

20.0 - 21.0 mi

Top 96%
×8stories
+106ft-24ft

Overall

24407

Females

10459

F18-39

10459

21M→35K

21.0 - 21.8 mi

Top 98%
×7stories
+17ft-86ft

Overall

25022

Females

10752

F18-39

10752

35K→23M

21.8 - 23.0 mi

Top 96%
×5stories
+23ft-63ft

Overall

24592

Females

10565

F18-39

10565

23M→24M

23.0 - 24.0 mi

Top 96%
×6stories
+12ft-82ft

Overall

24602

Females

10612

F18-39

10612

24M→40K

24.0 - 24.9 mi

Top 94%
×1story
+6ft-20ft

Overall

24016

Females

10385

F18-39

10385

40K→25.2M

24.9 - 25.2 mi

Top 94%
×1story
+13ft-16ft

Overall

23976

Females

10357

F18-39

10357

25.2M→Finish

25.2 - 26.2 mi

Top 88%
×2stories
+22ft-21ft

Overall

22574

Females

9734

F18-39

9734

Passing Analysis

Category:
Athletes Passed
1445
Passed By
3510
Net Change
-2065
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19089
5K → 10K147476-329#19089#19418
10K → 15K259184+75#19418#19343
15K → 20K344156+188#19343#19155
20K → Half3051-21#19155#19176
Half → 25K30391+212#19176#18964
25K → 30K197283-86#18964#19050
30K → 20M58179-121#19050#19171
20M → 21M10511-501#19171#19672
21M → 35K11463-452#19672#20124
35K → 23M16460-444#20124#20568
23M → 24M14304-290#20568#20858
24M → 40K17175-158#20858#21016
40K → 25.2M581-76#21016#21092
25.2M → Finish3496-62#21092#21154
TOTALS14453510-2065
📊

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