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BOSTON MARATHON 2024

Justin Laroche

Bib: 28039•M

MA

0:00
0:00
/ mi
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Overall
#0 / 25550
Gender (Male)
#0 / 14578
Division (M18-39)
#0 / 4849
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
29:58
Rank: #22131
Start → 5K
29:58 | 9:39/mi
10K· 6.21 mi
1:00:40
Rank: #22226 (-95)
5K → 10K
30:42 | 9:53/mi
15K· 9.32 mi
1:33:05
Rank: #22451 (-225)
10K → 15K
32:25 | 10:26/mi
20K· 12.43 mi
2:06:34
Rank: #22397 (+54)
15K → 20K
33:29 | 10:47/mi
Half· 13.11 mi
2:13:54
Rank: #22422 (-25)
20K → Half
7:20 | 10:45/mi
25K· 15.53 mi
2:43:22
Rank: #22641 (-219)
Half → 25K
29:28 | 12:09/mi
30K· 18.64 mi
3:24:50
Rank: #22948 (-307)
25K → 30K
41:28 | 13:21/mi
20M
3:43:54
Rank: #23081 (-133)
30K → 20M
19:04 | 14:02/mi
21M
3:58:24
Rank: #23098 (-17)
20M → 21M
14:30 | 14:30/mi
35K· 21.75 mi
4:07:42
Rank: #23074 (+24)
21M → 35K
9:18 | 12:26/mi
23M
4:23:15
Rank: #23013 (+61)
35K → 23M
15:33 | 12:25/mi
24M
4:34:30
Rank: #22926 (+87)
23M → 24M
11:15 | 11:15/mi
40K· 24.85 mi
4:44:29
Rank: #22834 (+92)
24M → 40K
9:59 | 11:41/mi
25.2M
4:48:38
Rank: #22785 (+49)
40K → 25.2M
4:09 | 12:02/mi
Finish· 26.22 mi
4:58:01
Rank: #22612 (+173)
25.2M → Finish
9:23 | 9:12/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:13:54
Pace10:13 /mi
2nd Half
Distance13.11 mi
Time2:44:07
Pace12:31 /mi
📊Positive Split: 22.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:52:0329:589:3929:58
9:39
-
10K
6.21 mi12:22:451:00:409:4630:42
9:53
+0:14
15K
9.32 mi12:55:101:33:059:5932:25
10:26
+0:33
20K
12.43 mi13:28:392:06:3410:1133:29
10:47
+0:21
Half
13.11 mi13:35:592:13:5410:137:20
10:45
-0:02
25K
15.53 mi14:05:272:43:2210:3129:28
12:09
+1:24
30K
18.64 mi14:46:553:24:5010:5941:28
13:21
+1:12
20M
20.00 mi15:05:593:43:5411:1219:04
14:02
+0:41
21M
21.00 mi15:20:293:58:2411:2114:30
14:30
+0:28
35K
21.75 mi15:29:474:07:4211:239:18
12:26
-2:04
23M
23.00 mi15:45:204:23:1511:2715:33
12:25
-0:01
24M
24.00 mi15:56:354:34:3011:2611:15
11:15
-1:10
40K
24.85 mi16:06:344:44:2911:279:59
11:41
+0:26
25.2M
25.20 mi16:10:434:48:3811:274:09
12:02
+0:21
Finish
26.22 mi16:20:064:58:0111:229:23
9:12
-2:50

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

9:12 /mi

Average Pace

11:22 /mi

Slowest Pace

14:30 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:23:17

48% of race

Time at Steady Pace

1:19:42

27% of race

Time at Slower Pace

1:15:02

25% of race

Average Pace: 11:22 /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 mi11:52:0329:589:3929:58
9:39
#22131
10K
6.21 mi12:22:451:00:409:4630:42
9:53
#22226
15K
9.32 mi12:55:101:33:059:5932:25
10:26
#22451
20K
12.43 mi13:28:392:06:3410:1133:29
10:47
#22397
Half
13.11 mi13:35:592:13:5410:137:20
10:45
#22422
25K
15.53 mi14:05:272:43:2210:3129:28
12:09
#22641
30K
18.64 mi14:46:553:24:5010:5941:28
13:21
#22948
20M
20.00 mi15:05:593:43:5411:1219:04
14:02
#23081
21M
21.00 mi15:20:293:58:2411:2114:30
14:30
#23098
35K
21.75 mi15:29:474:07:4211:239:18
12:26
#23074
23M
23.00 mi15:45:204:23:1511:2715:33
12:25
#23013
24M
24.00 mi15:56:354:34:3011:2611:15
11:15
#22926
40K
24.85 mi16:06:344:44:2911:279:59
11:41
#22834
25.2M
25.20 mi16:10:434:48:3811:274:09
12:02
#22785
Finish
26.22 mi16:20:064:58:0111:229:23
9:12
#22612
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi22131131141311422806(Top 89%)13439(Top 92%)13439(Top 277%)
10K6.21 mi3.10 mi22226-9513165-5113165-5122295(Top 87%)13189(Top 90%)13189(Top 272%)
15K9.32 mi3.11 mi22451-22513289-12413289-12422806(Top 89%)13439(Top 92%)13439(Top 277%)
20K12.43 mi3.11 mi22397+5413240+4913240+4922240(Top 87%)13152(Top 90%)13152(Top 271%)
Half13.11 mi0.68 mi22422-2513257-1713257-1723130(Top 91%)13517(Top 93%)13517(Top 279%)
25K15.53 mi2.42 mi22641-21913355-9813355-9823337(Top 91%)13571(Top 93%)13571(Top 280%)
30K18.64 mi3.11 mi22948-30713434-7913434-7923669(Top 93%)13632(Top 94%)13632(Top 281%)
20M20.00 mi1.36 mi23081-13313470-3613470-3623974(Top 94%)13713(Top 94%)13713(Top 283%)
21M21.00 mi1.00 mi23098-1713467+313467+322978(Top 90%)13150(Top 90%)13150(Top 271%)
35K21.75 mi0.75 mi23074+2413438+2913438+2922477(Top 88%)12858(Top 88%)12858(Top 265%)
23M23.00 mi1.25 mi23013+6113396+4213396+4221538(Top 84%)12353(Top 85%)12353(Top 255%)
24M24.00 mi1.00 mi22926+8713347+4913347+4919867(Top 78%)11457(Top 79%)11457(Top 236%)
40K24.85 mi0.85 mi22834+9213298+4913298+4919743(Top 77%)11333(Top 78%)11333(Top 234%)
25.2M25.20 mi0.35 mi22785+4913271+2713271+2717415(Top 68%)10136(Top 70%)10136(Top 209%)
Finish26.22 mi1.02 mi22612+17313168+10313168+10315195(Top 59%)9078(Top 62%)9078(Top 187%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 89%
×21stories
+97ft-345ft

Overall

22806

Males

13439

M18-39

13439

5K→10K

3.1 - 6.2 mi

Top 87%
×5stories
+79ft-138ft

Overall

22295

Males

13189

M18-39

13189

10K→15K

6.2 - 9.3 mi

Top 89%
×3stories
+67ft-78ft

Overall

22806

Males

13439

M18-39

13439

15K→20K

9.3 - 12.4 mi

Top 87%
×5stories
+106ft-86ft

Overall

22240

Males

13152

M18-39

13152

20K→Half

12.4 - 13.1 mi

Top 91%
×2stories
+19ft-37ft

Overall

23130

Males

13517

M18-39

13517

Half→25K

13.1 - 15.5 mi

Top 91%
×4stories
+66ft-88ft

Overall

23337

Males

13571

M18-39

13571

25K→30K

15.5 - 18.6 mi

Top 93%
×9stories
+181ft-148ft

Overall

23669

Males

13632

M18-39

13632

30K→20M

18.6 - 20.0 mi

Top 94%
×5stories
+64ft-50ft

Overall

23974

Males

13713

M18-39

13713

20M→21M

20.0 - 21.0 mi

Top 90%
×8stories
+106ft-24ft

Overall

22978

Males

13150

M18-39

13150

21M→35K

21.0 - 21.8 mi

Top 88%
×7stories
+17ft-86ft

Overall

22477

Males

12858

M18-39

12858

35K→23M

21.8 - 23.0 mi

Top 84%
×5stories
+23ft-63ft

Overall

21538

Males

12353

M18-39

12353

23M→24M

23.0 - 24.0 mi

Top 78%
×6stories
+12ft-82ft

Overall

19867

Males

11457

M18-39

11457

24M→40K

24.0 - 24.9 mi

Top 77%
×1story
+6ft-20ft

Overall

19743

Males

11333

M18-39

11333

40K→25.2M

24.9 - 25.2 mi

Top 68%
×1story
+13ft-16ft

Overall

17415

Males

10136

M18-39

10136

25.2M→Finish

25.2 - 26.2 mi

Top 59%
×2stories
+22ft-21ft

Overall

15195

Males

9078

M18-39

9078

Passing Analysis

Category:
Athletes Passed
1254
Passed By
1735
Net Change
-481
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22131
5K → 10K177272-95#22131#22226
10K → 15K103328-225#22226#22451
15K → 20K205151+54#22451#22397
20K → Half2348-25#22397#22422
Half → 25K58277-219#22422#22641
25K → 30K71378-307#22641#22948
30K → 20M31164-133#22948#23081
20M → 21M4562-17#23081#23098
21M → 35K4521+24#23098#23074
35K → 23M8120+61#23074#23013
23M → 24M969+87#23013#22926
24M → 40K975+92#22926#22834
40K → 25.2M490+49#22834#22785
25.2M → Finish1730+173#22785#22612
TOTALS12541735-481
📊

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