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BOSTON MARATHON 2025

Isaac Laplante

Bib: 31711•M

MA

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Division (M18-39)
#0 / 5642
Race Day Weather
50°/40°F
broken 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
8:30/mi
26:23
↑ 97↓ 3451.5%
10K· 6.21 mi
8:38/mi
53:11
↑ 79↓ 1380.4%
15K· 9.32 mi
8:45/mi
1:20:23
↑ 67↓ 78
20K· 12.43 mi
9:07/mi
1:48:42
↑ 106↓ 860.1%
Half· 13.11 mi
9:16/mi
1:55:01
↑ 19↓ 370.5%
25K· 15.53 mi
9:53/mi
2:18:58
↑ 66↓ 880.2%
30K· 18.64 mi
12:36/mi
2:58:06
↑ 181↓ 1480.2%
20M
12:55/mi
3:15:39
↑ 64↓ 500.2%
21M
14:52/mi
3:30:31
↑ 106↓ 241.6%
35K· 21.75 mi
12:27/mi
3:39:50
↑ 17↓ 861.7%
23M
12:24/mi
3:55:22
↑ 23↓ 630.6%
24M
12:12/mi
4:07:34
↓ 821.3%
40K· 24.85 mi
13:34/mi
4:19:10
↓ 200.3%
25.2M
14:07/mi
4:24:02
↑ 13↓ 160.2%
Finish· 26.22 mi
10:41/mi
4:34:55
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:55:01
Pace8:46 /mi
2nd Half
Distance13.11 mi
Time2:39:54
Pace12:12 /mi
📊Positive Split: 39.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:47:1626:238:3026:23
8:30
-
10K
6.21 mi12:14:0453:118:3426:48
8:38
+0:08
15K
9.32 mi12:41:161:20:238:3727:12
8:45
+0:07
20K
12.43 mi13:09:351:48:428:4528:19
9:07
+0:22
Half
13.11 mi13:15:541:55:018:466:19
9:16
+0:09
25K
15.53 mi13:39:512:18:588:5723:57
9:53
+0:37
30K
18.64 mi14:18:592:58:069:3339:08
12:36
+2:43
20M
20.00 mi14:36:323:15:399:4717:33
12:55
+0:19
21M
21.00 mi14:51:243:30:3110:0114:52
14:52
+1:57
35K
21.75 mi15:00:433:39:5010:069:19
12:27
-2:25
23M
23.00 mi15:16:153:55:2210:1415:32
12:24
-0:03
24M
24.00 mi15:28:274:07:3410:1912:12
12:12
-0:12
40K
24.85 mi15:40:034:19:1010:2611:36
13:34
+1:22
25.2M
25.20 mi15:44:554:24:0210:294:52
14:07
+0:33
Finish
26.22 mi15:55:484:34:5510:3010:53
10:41
-3:26

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

8:30 /mi

Average Pace

10:30 /mi

Slowest Pace

14:52 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:29:51

55% of race

Time at Steady Pace

1:33:44

34% of race

Time at Slower Pace

31:20

11% of race

Average Pace: 10:29 /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 mi11:47:1626:238:3026:23
8:30
#19832
10K
6.21 mi12:14:0453:118:3426:48
8:38
#20185
15K
9.32 mi12:41:161:20:238:3727:12
8:45
#20335
20K
12.43 mi13:09:351:48:428:4528:19
9:07
#20665
Half
13.11 mi13:15:541:55:018:466:19
9:16
#20795
25K
15.53 mi13:39:512:18:588:5723:57
9:53
#21324
30K
18.64 mi14:18:592:58:069:3339:08
12:36
#22968
20M
20.00 mi14:36:323:15:399:4717:33
12:55
#23376
21M
21.00 mi14:51:243:30:3110:0114:52
14:52
#23806
35K
21.75 mi15:00:433:39:5010:069:19
12:27
#23948
23M
23.00 mi15:16:153:55:2210:1415:32
12:24
#24078
24M
24.00 mi15:28:274:07:3410:1912:12
12:12
#24207
40K
24.85 mi15:40:034:19:1010:2611:36
13:34
#24384
25.2M
25.20 mi15:44:554:24:0210:294:52
14:07
#24441
Finish
26.22 mi15:55:484:34:5510:3010:53
10:41
#24453
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi19832123661236620785(Top 73%)12853(Top 80%)12853(Top 228%)
10K6.21 mi3.10 mi20185-35312544-17812544-17820479(Top 72%)12695(Top 79%)12695(Top 225%)
15K9.32 mi3.11 mi20335-15012616-7212616-7220785(Top 73%)12853(Top 80%)12853(Top 228%)
20K12.43 mi3.11 mi20665-33012760-14412760-14421510(Top 76%)13136(Top 82%)13136(Top 233%)
Half13.11 mi0.68 mi20795-13012817-5712817-5722813(Top 80%)13717(Top 85%)13717(Top 243%)
25K15.53 mi2.42 mi21324-52913039-22213039-22222963(Top 81%)13733(Top 85%)13733(Top 243%)
30K18.64 mi3.11 mi22968-164413738-69913738-69926269(Top 92%)15095(Top 94%)15095(Top 268%)
20M20.00 mi1.36 mi23376-40813911-17313911-17326359(Top 93%)15089(Top 94%)15089(Top 267%)
21M21.00 mi1.00 mi23806-43014085-17414085-17427045(Top 95%)15388(Top 96%)15388(Top 273%)
35K21.75 mi0.75 mi23948-14214130-4514130-4526411(Top 93%)15051(Top 93%)15051(Top 267%)
23M23.00 mi1.25 mi24078-13014181-5114181-5125666(Top 90%)14660(Top 91%)14660(Top 260%)
24M24.00 mi1.00 mi24207-12914224-4314224-4325916(Top 91%)14755(Top 92%)14755(Top 262%)
40K24.85 mi0.85 mi24384-17714313-8914313-8926823(Top 94%)15194(Top 94%)15194(Top 269%)
25.2M25.20 mi0.35 mi24441-5714330-1714330-1726398(Top 93%)14949(Top 93%)14949(Top 265%)
Finish26.22 mi1.02 mi24453-1214314+1614314+1624688(Top 87%)14124(Top 88%)14124(Top 250%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 73%
×21story building
+97ft-345ft

Overall

20785

Males

12853

M18-39

12853

5K→10K

3.1 - 6.2 mi

Top 72%
×5story building
+79ft-138ft

Overall

20479

Males

12695

M18-39

12695

10K→15K

6.2 - 9.3 mi

Top 73%
×3story building
+67ft-78ft

Overall

20785

Males

12853

M18-39

12853

15K→20K

9.3 - 12.4 mi

Top 76%
×5story building
+106ft-86ft

Overall

21510

Males

13136

M18-39

13136

20K→Half

12.4 - 13.1 mi

Top 80%
×2story building
+19ft-37ft

Overall

22813

Males

13717

M18-39

13717

Half→25K

13.1 - 15.5 mi

Top 81%
×4story building
+66ft-88ft

Overall

22963

Males

13733

M18-39

13733

25K→30K

15.5 - 18.6 mi

Top 92%
×9story building
+181ft-148ft

Overall

26269

Males

15095

M18-39

15095

30K→20M

18.6 - 20.0 mi

Top 93%
×5story building
+64ft-50ft

Overall

26359

Males

15089

M18-39

15089

20M→21M

20.0 - 21.0 mi

Top 95%
×8story building
+106ft-24ft

Overall

27045

Males

15388

M18-39

15388

21M→35K

21.0 - 21.8 mi

Top 93%
×7story building
+17ft-86ft

Overall

26411

Males

15051

M18-39

15051

35K→23M

21.8 - 23.0 mi

Top 90%
×5story building
+23ft-63ft

Overall

25666

Males

14660

M18-39

14660

23M→24M

23.0 - 24.0 mi

Top 91%
×6story building
+12ft-82ft

Overall

25916

Males

14755

M18-39

14755

24M→40K

24.0 - 24.9 mi

Top 94%
×1story
+6ft-20ft

Overall

26823

Males

15194

M18-39

15194

40K→25.2M

24.9 - 25.2 mi

Top 93%
×1story
+13ft-16ft

Overall

26398

Males

14949

M18-39

14949

25.2M→Finish

25.2 - 26.2 mi

Top 87%
×2story building
+22ft-21ft

Overall

24688

Males

14124

M18-39

14124

Passing Analysis

Category:
Athletes Passed
566
Passed By
5187
Net Change
-4621
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19832
5K → 10K133486-353#19832#20185
10K → 15K136286-150#20185#20335
15K → 20K100430-330#20335#20665
20K → Half7137-130#20665#20795
Half → 25K52581-529#20795#21324
25K → 30K131657-1644#21324#22968
30K → 20M21429-408#22968#23376
20M → 21M6436-430#23376#23806
21M → 35K10152-142#23806#23948
35K → 23M32162-130#23948#24078
23M → 24M15144-129#24078#24207
24M → 40K7184-177#24207#24384
40K → 25.2M360-57#24384#24441
25.2M → Finish3143-12#24441#24453
TOTALS5665187-4621
📊

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