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BOSTON MARATHON 2024

Justin Leduc

Bib: 29266•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

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
9:46/mi
30:22
↑ 97↓ 3451.5%
10K· 6.21 mi
10:09/mi
1:01:53
↑ 79↓ 1380.4%
15K· 9.32 mi
10:17/mi
1:33:50
↑ 67↓ 78
20K· 12.43 mi
10:17/mi
2:05:46
↑ 106↓ 860.1%
Half· 13.11 mi
9:35/mi
2:12:18
↑ 19↓ 370.5%
25K· 15.53 mi
10:01/mi
2:36:36
↑ 66↓ 880.2%
30K· 18.64 mi
10:32/mi
3:09:20
↑ 181↓ 1480.2%
20M
10:29/mi
3:23:35
↑ 64↓ 500.2%
21M
13:15/mi
3:36:50
↑ 106↓ 241.6%
35K· 21.75 mi
11:26/mi
3:45:23
↑ 17↓ 861.7%
23M
10:34/mi
3:58:37
↑ 23↓ 630.6%
24M
10:39/mi
4:09:16
↓ 821.3%
40K· 24.85 mi
11:09/mi
4:18:48
↓ 200.3%
25.2M
13:03/mi
4:23:18
↑ 13↓ 160.2%
Finish· 26.22 mi
9:28/mi
4:32:57
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:12:18
Pace10:06 /mi
2nd Half
Distance13.11 mi
Time2:20:39
Pace10:44 /mi
📊Positive Split: 6.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:53:4630:229:4630:22
9:46
-
10K
6.21 mi12:25:171:01:539:5831:31
10:09
+0:23
15K
9.32 mi12:57:141:33:5010:0431:57
10:17
+0:08
20K
12.43 mi13:29:102:05:4610:0731:56
10:17
0:00
Half
13.11 mi13:35:422:12:1810:066:32
9:35
-0:42
25K
15.53 mi14:00:002:36:3610:0524:18
10:01
+0:26
30K
18.64 mi14:32:443:09:2010:0932:44
10:32
+0:31
20M
20.00 mi14:46:593:23:3510:1114:15
10:29
-0:03
21M
21.00 mi15:00:143:36:5010:2013:15
13:15
+2:46
35K
21.75 mi15:08:473:45:2310:228:33
11:26
-1:49
23M
23.00 mi15:22:013:58:3710:2213:14
10:34
-0:52
24M
24.00 mi15:32:404:09:1610:2310:39
10:39
+0:05
40K
24.85 mi15:42:124:18:4810:259:32
11:09
+0:30
25.2M
25.20 mi15:46:424:23:1810:274:30
13:03
+1:54
Finish
26.22 mi15:56:214:32:5710:259:39
9:28
-3:35

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

9:28 /mi

Average Pace

10:25 /mi

Slowest Pace

13:15 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

46:33

17% of race

Time at Steady Pace

3:10:34

70% of race

Time at Slower Pace

35:50

13% of race

Average Pace: 10:25 /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 mi11:53:4630:229:4630:22
9:46
#22476
10K
6.21 mi12:25:171:01:539:5831:31
10:09
#22687
15K
9.32 mi12:57:141:33:5010:0431:57
10:17
#22640
20K
12.43 mi13:29:102:05:4610:0731:56
10:17
#22259
Half
13.11 mi13:35:422:12:1810:066:32
9:35
#22163
25K
15.53 mi14:00:002:36:3610:0524:18
10:01
#21676
30K
18.64 mi14:32:443:09:2010:0932:44
10:32
#21151
20M
20.00 mi14:46:593:23:3510:1114:15
10:29
#20938
21M
21.00 mi15:00:143:36:5010:2013:15
13:15
#20966
35K
21.75 mi15:08:473:45:2310:228:33
11:26
#20949
23M
23.00 mi15:22:013:58:3710:2213:14
10:34
#20735
24M
24.00 mi15:32:404:09:1610:2310:39
10:39
#20630
40K
24.85 mi15:42:124:18:4810:259:32
11:09
#20546
25.2M
25.20 mi15:46:424:23:1810:274:30
13:03
#20517
Finish
26.22 mi15:56:214:32:5710:259:39
9:28
#20397
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi22476132861328622512(Top 88%)13312(Top 91%)13312(Top 275%)
10K6.21 mi3.10 mi22687-21113384-9813384-9822864(Top 89%)13452(Top 92%)13452(Top 277%)
15K9.32 mi3.11 mi22640+4713380+413380+422512(Top 88%)13312(Top 91%)13312(Top 275%)
20K12.43 mi3.11 mi22259+38113172+20813172+20821199(Top 83%)12686(Top 87%)12686(Top 262%)
Half13.11 mi0.68 mi22163+9613129+4313129+4320328(Top 80%)12219(Top 84%)12219(Top 252%)
25K15.53 mi2.42 mi21676+48712886+24312886+24319183(Top 75%)11669(Top 80%)11669(Top 241%)
30K18.64 mi3.11 mi21151+52512591+29512591+29518887(Top 74%)11332(Top 78%)11332(Top 234%)
20M20.00 mi1.36 mi20938+21312463+12812463+12817972(Top 70%)10735(Top 74%)10735(Top 221%)
21M21.00 mi1.00 mi20966-2812454+912454+921183(Top 83%)12245(Top 84%)12245(Top 253%)
35K21.75 mi0.75 mi20949+1712430+2412430+2420732(Top 81%)11991(Top 82%)11991(Top 247%)
23M23.00 mi1.25 mi20735+21412300+13012300+13017246(Top 67%)10180(Top 70%)10180(Top 210%)
24M24.00 mi1.00 mi20630+10512230+7012230+7018312(Top 72%)10648(Top 73%)10648(Top 220%)
40K24.85 mi0.85 mi20546+8412173+5712173+5718508(Top 72%)10706(Top 73%)10706(Top 221%)
25.2M25.20 mi0.35 mi20517+2912150+2312150+2319858(Top 78%)11358(Top 78%)11358(Top 234%)
Finish26.22 mi1.02 mi20397+12012087+6312087+6316431(Top 64%)9661(Top 66%)9661(Top 199%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 88%
×21story building
+97ft-345ft

Overall

22512

Males

13312

M18-39

13312

5K→10K

3.1 - 6.2 mi

Top 89%
×5story building
+79ft-138ft

Overall

22864

Males

13452

M18-39

13452

10K→15K

6.2 - 9.3 mi

Top 88%
×3story building
+67ft-78ft

Overall

22512

Males

13312

M18-39

13312

15K→20K

9.3 - 12.4 mi

Top 83%
×5story building
+106ft-86ft

Overall

21199

Males

12686

M18-39

12686

20K→Half

12.4 - 13.1 mi

Top 80%
×2story building
+19ft-37ft

Overall

20328

Males

12219

M18-39

12219

Half→25K

13.1 - 15.5 mi

Top 75%
×4story building
+66ft-88ft

Overall

19183

Males

11669

M18-39

11669

25K→30K

15.5 - 18.6 mi

Top 74%
×9story building
+181ft-148ft

Overall

18887

Males

11332

M18-39

11332

30K→20M

18.6 - 20.0 mi

Top 70%
×5story building
+64ft-50ft

Overall

17972

Males

10735

M18-39

10735

20M→21M

20.0 - 21.0 mi

Top 83%
×8story building
+106ft-24ft

Overall

21183

Males

12245

M18-39

12245

21M→35K

21.0 - 21.8 mi

Top 81%
×7story building
+17ft-86ft

Overall

20732

Males

11991

M18-39

11991

35K→23M

21.8 - 23.0 mi

Top 67%
×5story building
+23ft-63ft

Overall

17246

Males

10180

M18-39

10180

23M→24M

23.0 - 24.0 mi

Top 72%
×6story building
+12ft-82ft

Overall

18312

Males

10648

M18-39

10648

24M→40K

24.0 - 24.9 mi

Top 72%
×1story
+6ft-20ft

Overall

18508

Males

10706

M18-39

10706

40K→25.2M

24.9 - 25.2 mi

Top 78%
×1story
+13ft-16ft

Overall

19858

Males

11358

M18-39

11358

25.2M→Finish

25.2 - 26.2 mi

Top 64%
×2story building
+22ft-21ft

Overall

16431

Males

9661

M18-39

9661

Passing Analysis

Category:
Athletes Passed
2772
Passed By
693
Net Change
+2079
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22476
5K → 10K123334-211#22476#22687
10K → 15K180133+47#22687#22640
15K → 20K40625+381#22640#22259
20K → Half971+96#22259#22163
Half → 25K4903+487#22163#21676
25K → 30K53611+525#21676#21151
30K → 20M2141+213#21151#20938
20M → 21M6694-28#20938#20966
21M → 35K6043+17#20966#20949
35K → 23M2151+214#20949#20735
23M → 24M12015+105#20735#20630
24M → 40K9612+84#20630#20546
40K → 25.2M4112+29#20546#20517
25.2M → Finish1288+120#20517#20397
TOTALS2772693+2079
📊

Passing Visuals

Category:
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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