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BOSTON MARATHON 2024

Niamh Kerslake

Bib: 29152•F

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
33:52
Rank: #24721
Start → 5K
33:52 | 10:54/mi
10K· 6.21 mi
1:08:35
Rank: #24597 (+124)
5K → 10K
34:43 | 11:10/mi
15K· 9.32 mi
1:45:22
Rank: #24623 (-26)
10K → 15K
36:47 | 11:50/mi
20K· 12.43 mi
2:23:58
Rank: #24623
15K → 20K
38:36 | 12:25/mi
Half· 13.11 mi
2:32:59
Rank: #24676 (-53)
20K → Half
9:01 | 13:13/mi
25K· 15.53 mi
3:07:06
Rank: #24763 (-87)
Half → 25K
34:07 | 14:04/mi
30K· 18.64 mi
3:52:14
Rank: #24787 (-24)
25K → 30K
45:08 | 14:32/mi
20M
4:14:14
Rank: #24851 (-64)
30K → 20M
22:00 | 16:11/mi
21M
4:29:22
Rank: #24825 (+26)
20M → 21M
15:08 | 15:08/mi
35K· 21.75 mi
4:39:54
Rank: #24830 (-5)
21M → 35K
10:32 | 14:05/mi
23M
4:57:36
Rank: #24820 (+10)
35K → 23M
17:42 | 14:08/mi
24M
5:13:15
Rank: #24877 (-57)
23M → 24M
15:39 | 15:39/mi
40K· 24.85 mi
5:25:53
Rank: #24880 (-3)
24M → 40K
12:38 | 14:47/mi
25.2M
5:30:28
Rank: #24851 (+29)
40K → 25.2M
4:35 | 13:17/mi
Finish· 26.22 mi
5:41:23
Rank: #24780 (+71)
25.2M → Finish
10:55 | 10:43/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:32:59
Pace11:40 /mi
2nd Half
Distance13.11 mi
Time3:08:24
Pace14:22 /mi
📊Positive Split: 23.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi12:00:1333:5210:5433:52
10:54
-
10K
6.21 mi12:34:561:08:3511:0234:43
11:10
+0:16
15K
9.32 mi13:11:431:45:2211:1836:47
11:50
+0:40
20K
12.43 mi13:50:192:23:5811:3538:36
12:25
+0:35
Half
13.11 mi13:59:202:32:5911:409:01
13:13
+0:48
25K
15.53 mi14:33:273:07:0612:0334:07
14:04
+0:51
30K
18.64 mi15:18:353:52:1412:2745:08
14:32
+0:28
20M
20.00 mi15:40:354:14:1412:4322:00
16:11
+1:39
21M
21.00 mi15:55:434:29:2212:5015:08
15:08
-1:03
35K
21.75 mi16:06:154:39:5412:5210:32
14:05
-1:03
23M
23.00 mi16:23:574:57:3612:5617:42
14:08
+0:03
24M
24.00 mi16:39:365:13:1513:0315:39
15:39
+1:31
40K
24.85 mi16:52:145:25:5313:0712:38
14:47
-0:52
25.2M
25.20 mi16:56:495:30:2813:074:35
13:17
-1:30
Finish
26.22 mi17:07:445:41:2313:0210:55
10:43
-2:34

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

10:43 /mi

Average Pace

13:02 /mi

Slowest Pace

16:11 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:43:54

48% of race

Time at Steady Pace

2:04:42

37% of race

Time at Slower Pace

52:47

15% of race

Average Pace: 13:01 /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 mi12:00:1333:5210:5433:52
10:54
#24721
10K
6.21 mi12:34:561:08:3511:0234:43
11:10
#24597
15K
9.32 mi13:11:431:45:2211:1836:47
11:50
#24623
20K
12.43 mi13:50:192:23:5811:3538:36
12:25
#24623
Half
13.11 mi13:59:202:32:5911:409:01
13:13
#24676
25K
15.53 mi14:33:273:07:0612:0334:07
14:04
#24763
30K
18.64 mi15:18:353:52:1412:2745:08
14:32
#24787
20M
20.00 mi15:40:354:14:1412:4322:00
16:11
#24851
21M
21.00 mi15:55:434:29:2212:5015:08
15:08
#24825
35K
21.75 mi16:06:154:39:5412:5210:32
14:05
#24830
23M
23.00 mi16:23:574:57:3612:5617:42
14:08
#24820
24M
24.00 mi16:39:365:13:1513:0315:39
15:39
#24877
40K
24.85 mi16:52:145:25:5313:0712:38
14:47
#24880
25.2M
25.20 mi16:56:495:30:2813:074:35
13:17
#24851
Finish
26.22 mi17:07:445:41:2313:0210:55
10:43
#24780
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi24721103811038124571(Top 96%)10322(Top 94%)10322(Top 222%)
10K6.21 mi3.10 mi24597+12410321+6010321+6024463(Top 96%)10240(Top 94%)10240(Top 220%)
15K9.32 mi3.11 mi24623-2610330-910330-924571(Top 96%)10322(Top 94%)10322(Top 222%)
20K12.43 mi3.11 mi2462310331-110331-124413(Top 96%)10249(Top 94%)10249(Top 220%)
Half13.11 mi0.68 mi24676-5310365-3410365-3425245(Top 99%)10765(Top 99%)10765(Top 231%)
25K15.53 mi2.42 mi24763-8710436-7110436-7124966(Top 98%)10612(Top 97%)10612(Top 228%)
30K18.64 mi3.11 mi24787-2410477-4110477-4124603(Top 96%)10467(Top 96%)10467(Top 225%)
20M20.00 mi1.36 mi24851-6410513-3610513-3625235(Top 99%)10807(Top 99%)10807(Top 232%)
21M21.00 mi1.00 mi24825+2610504+910504+923713(Top 93%)10132(Top 93%)10132(Top 217%)
35K21.75 mi0.75 mi24830-510515-1110515-1124358(Top 95%)10470(Top 96%)10470(Top 225%)
23M23.00 mi1.25 mi24820+1010520-510520-523930(Top 94%)10257(Top 94%)10257(Top 220%)
24M24.00 mi1.00 mi24877-5710554-3410554-3425050(Top 98%)10781(Top 99%)10781(Top 231%)
40K24.85 mi0.85 mi24880-310564-1010564-1024379(Top 95%)10528(Top 96%)10528(Top 226%)
25.2M25.20 mi0.35 mi24851+2910555+910555+920349(Top 80%)8702(Top 80%)8702(Top 187%)
Finish26.22 mi1.02 mi24780+7110522+3310522+3320616(Top 81%)8787(Top 80%)8787(Top 189%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 96%
×21stories
+97ft-345ft

Overall

24571

Females

10322

F18-39

10322

5K→10K

3.1 - 6.2 mi

Top 96%
×5stories
+79ft-138ft

Overall

24463

Females

10240

F18-39

10240

10K→15K

6.2 - 9.3 mi

Top 96%
×3stories
+67ft-78ft

Overall

24571

Females

10322

F18-39

10322

15K→20K

9.3 - 12.4 mi

Top 96%
×5stories
+106ft-86ft

Overall

24413

Females

10249

F18-39

10249

20K→Half

12.4 - 13.1 mi

Top 99%
×2stories
+19ft-37ft

Overall

25245

Females

10765

F18-39

10765

Half→25K

13.1 - 15.5 mi

Top 98%
×4stories
+66ft-88ft

Overall

24966

Females

10612

F18-39

10612

25K→30K

15.5 - 18.6 mi

Top 96%
×9stories
+181ft-148ft

Overall

24603

Females

10467

F18-39

10467

30K→20M

18.6 - 20.0 mi

Top 99%
×5stories
+64ft-50ft

Overall

25235

Females

10807

F18-39

10807

20M→21M

20.0 - 21.0 mi

Top 93%
×8stories
+106ft-24ft

Overall

23713

Females

10132

F18-39

10132

21M→35K

21.0 - 21.8 mi

Top 95%
×7stories
+17ft-86ft

Overall

24358

Females

10470

F18-39

10470

35K→23M

21.8 - 23.0 mi

Top 94%
×5stories
+23ft-63ft

Overall

23930

Females

10257

F18-39

10257

23M→24M

23.0 - 24.0 mi

Top 98%
×6stories
+12ft-82ft

Overall

25050

Females

10781

F18-39

10781

24M→40K

24.0 - 24.9 mi

Top 95%
×1story
+6ft-20ft

Overall

24379

Females

10528

F18-39

10528

40K→25.2M

24.9 - 25.2 mi

Top 80%
×1story
+13ft-16ft

Overall

20349

Females

8702

F18-39

8702

25.2M→Finish

25.2 - 26.2 mi

Top 81%
×2stories
+22ft-21ft

Overall

20616

Females

8787

F18-39

8787

Passing Analysis

Category:
Athletes Passed
727
Passed By
786
Net Change
-59
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24721
5K → 10K20783+124#24721#24597
10K → 15K89115-26#24597#24623
15K → 20K90900#24623#24623
20K → Half356-53#24623#24676
Half → 25K28115-87#24676#24763
25K → 30K6993-24#24763#24787
30K → 20M1680-64#24787#24851
20M → 21M4418+26#24851#24825
21M → 35K2126-5#24825#24830
35K → 23M2919+10#24830#24820
23M → 24M1067-57#24820#24877
24M → 40K1821-3#24877#24880
40K → 25.2M312+29#24880#24851
25.2M → Finish721+71#24851#24780
TOTALS727786-59
📊

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