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BOSTON MARATHON 2025

Chris Lacour

Bib: 7371•M

CA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 18%
Gender (Male)
#0 / 16105
Top 28%
Division (M18-39)
#0 / 5642
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:07
Rank: #6280
Start → 5K
21:07 | 6:48/mi
10K· 6.21 mi
41:58
Rank: #5854 (+426)
5K → 10K
20:51 | 6:43/mi
15K· 9.32 mi
1:02:47
Rank: #5581 (+273)
10K → 15K
20:49 | 6:42/mi
20K· 12.43 mi
1:23:44
Rank: #5346 (+235)
15K → 20K
20:57 | 6:45/mi
Half· 13.11 mi
1:28:14
Rank: #5279 (+67)
20K → Half
4:30 | 6:36/mi
25K· 15.53 mi
1:44:46
Rank: #5215 (+64)
Half → 25K
16:32 | 6:49/mi
30K· 18.64 mi
2:06:32
Rank: #5051 (+164)
25K → 30K
21:46 | 7:00/mi
20M
2:15:55
Rank: #4889 (+162)
30K → 20M
9:23 | 6:54/mi
21M
2:23:20
Rank: #4815 (+74)
20M → 21M
7:25 | 7:25/mi
35K· 21.75 mi
2:28:21
Rank: #4721 (+94)
21M → 35K
5:01 | 6:42/mi
23M
2:37:14
Rank: #4672 (+49)
35K → 23M
8:53 | 7:06/mi
24M
2:44:25
Rank: #4725 (-53)
23M → 24M
7:11 | 7:11/mi
40K· 24.85 mi
2:50:52
Rank: #4829 (-104)
24M → 40K
6:27 | 7:33/mi
25.2M
2:53:50
Rank: #4905 (-76)
40K → 25.2M
2:58 | 8:36/mi
Finish· 26.22 mi
3:01:38
Rank: #5041 (-136)
25.2M → Finish
7:48 | 7:39/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:28:14
Pace6:44 /mi
2nd Half
Distance13.11 mi
Time1:33:24
Pace7:07 /mi
📊Positive Split: 5.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:26:5221:076:4821:07
6:48
-
10K
6.21 mi10:47:4341:586:4520:51
6:43
-0:05
15K
9.32 mi11:08:321:02:476:4420:49
6:42
-0:01
20K
12.43 mi11:29:291:23:446:4420:57
6:45
+0:03
Half
13.11 mi11:33:591:28:146:444:30
6:36
-0:09
25K
15.53 mi11:50:311:44:466:4516:32
6:49
+0:13
30K
18.64 mi12:12:172:06:326:4721:46
7:00
+0:11
20M
20.00 mi12:21:402:15:556:489:23
6:54
-0:06
21M
21.00 mi12:29:052:23:206:507:25
7:25
+0:31
35K
21.75 mi12:34:062:28:216:495:01
6:42
-0:43
23M
23.00 mi12:42:592:37:146:508:53
7:06
+0:24
24M
24.00 mi12:50:102:44:256:517:11
7:11
+0:05
40K
24.85 mi12:56:372:50:526:526:27
7:33
+0:22
25.2M
25.20 mi12:59:352:53:506:542:58
8:36
+1:03
Finish
26.22 mi13:07:233:01:386:567:48
7:39
-0:57

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

6:36 /mi

Average Pace

6:56 /mi

Slowest Pace

8:36 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

4:30

2% of race

Time at Steady Pace

2:25:19

80% of race

Time at Slower Pace

31:49

18% of race

Average Pace: 6:56 /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 mi10:26:5221:076:4821:07
6:48
#6280
10K
6.21 mi10:47:4341:586:4520:51
6:43
#5854
15K
9.32 mi11:08:321:02:476:4420:49
6:42
#5581
20K
12.43 mi11:29:291:23:446:4420:57
6:45
#5346
Half
13.11 mi11:33:591:28:146:444:30
6:36
#5279
25K
15.53 mi11:50:311:44:466:4516:32
6:49
#5215
30K
18.64 mi12:12:172:06:326:4721:46
7:00
#5051
20M
20.00 mi12:21:402:15:556:489:23
6:54
#4889
21M
21.00 mi12:29:052:23:206:507:25
7:25
#4815
35K
21.75 mi12:34:062:28:216:495:01
6:42
#4721
23M
23.00 mi12:42:592:37:146:508:53
7:06
#4672
24M
24.00 mi12:50:102:44:256:517:11
7:11
#4725
40K
24.85 mi12:56:372:50:526:526:27
7:33
#4829
25.2M
25.20 mi12:59:352:53:506:542:58
8:36
#4905
Finish
26.22 mi13:07:233:01:386:567:48
7:39
#5041
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi6280574157415061(Top 18%)4696(Top 29%)4696(Top 83%)
10K6.21 mi3.10 mi5854+4265389+3525389+3525433(Top 19%)5017(Top 31%)5017(Top 89%)
15K9.32 mi3.11 mi5581+2735147+2425147+2425061(Top 18%)4696(Top 29%)4696(Top 83%)
20K12.43 mi3.11 mi5346+2354946+2014946+2014794(Top 17%)4437(Top 28%)4437(Top 79%)
Half13.11 mi0.68 mi5279+674886+604886+604348(Top 15%)4070(Top 25%)4070(Top 72%)
25K15.53 mi2.42 mi5215+644823+634823+635004(Top 18%)4591(Top 29%)4591(Top 81%)
30K18.64 mi3.11 mi5051+1644655+1684655+1684714(Top 17%)4295(Top 27%)4295(Top 76%)
20M20.00 mi1.36 mi4889+1624518+1374518+1373549(Top 12%)3271(Top 20%)3271(Top 58%)
21M21.00 mi1.00 mi4815+744448+704448+704187(Top 15%)3766(Top 23%)3766(Top 67%)
35K21.75 mi0.75 mi4721+944359+894359+893533(Top 12%)3206(Top 20%)3206(Top 57%)
23M23.00 mi1.25 mi4672+494304+554304+554286(Top 15%)3798(Top 24%)3798(Top 67%)
24M24.00 mi1.00 mi4725-534343-394343-395685(Top 20%)4710(Top 29%)4710(Top 83%)
40K24.85 mi0.85 mi4829-1044425-824425-827001(Top 25%)5419(Top 34%)5419(Top 96%)
25.2M25.20 mi0.35 mi4905-764477-524477-529296(Top 33%)6548(Top 41%)6548(Top 116%)
Finish26.22 mi1.02 mi5041-1364582-1054582-10510285(Top 36%)7115(Top 44%)7115(Top 126%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 18%
×21stories
+97ft-345ft

Overall

5061

Males

4696

M18-39

4696

5K→10K

3.1 - 6.2 mi

Top 19%
×5stories
+79ft-138ft

Overall

5433

Males

5017

M18-39

5017

10K→15K

6.2 - 9.3 mi

Top 18%
×3stories
+67ft-78ft

Overall

5061

Males

4696

M18-39

4696

15K→20K

9.3 - 12.4 mi

Top 17%
×5stories
+106ft-86ft

Overall

4794

Males

4437

M18-39

4437

20K→Half

12.4 - 13.1 mi

Top 15%
×2stories
+19ft-37ft

Overall

4348

Males

4070

M18-39

4070

Half→25K

13.1 - 15.5 mi

Top 18%
×4stories
+66ft-88ft

Overall

5004

Males

4591

M18-39

4591

25K→30K

15.5 - 18.6 mi

Top 17%
×9stories
+181ft-148ft

Overall

4714

Males

4295

M18-39

4295

30K→20M

18.6 - 20.0 mi

Top 12%
×5stories
+64ft-50ft

Overall

3549

Males

3271

M18-39

3271

20M→21M

20.0 - 21.0 mi

Top 15%
×8stories
+106ft-24ft

Overall

4187

Males

3766

M18-39

3766

21M→35K

21.0 - 21.8 mi

Top 12%
×7stories
+17ft-86ft

Overall

3533

Males

3206

M18-39

3206

35K→23M

21.8 - 23.0 mi

Top 15%
×5stories
+23ft-63ft

Overall

4286

Males

3798

M18-39

3798

23M→24M

23.0 - 24.0 mi

Top 20%
×6stories
+12ft-82ft

Overall

5685

Males

4710

M18-39

4710

24M→40K

24.0 - 24.9 mi

Top 25%
×1story
+6ft-20ft

Overall

7001

Males

5419

M18-39

5419

40K→25.2M

24.9 - 25.2 mi

Top 33%
×1story
+13ft-16ft

Overall

9296

Males

6548

M18-39

6548

25.2M→Finish

25.2 - 26.2 mi

Top 36%
×2stories
+22ft-21ft

Overall

10285

Males

7115

M18-39

7115

Passing Analysis

Category:
Athletes Passed
2049
Passed By
810
Net Change
+1239
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6280
5K → 10K46741+426#6280#5854
10K → 15K29825+273#5854#5581
15K → 20K25924+235#5581#5346
20K → Half714+67#5346#5279
Half → 25K14379+64#5279#5215
25K → 30K23369+164#5215#5051
30K → 20M17311+162#5051#4889
20M → 21M10531+74#4889#4815
21M → 35K1017+94#4815#4721
35K → 23M10253+49#4721#4672
23M → 24M4497-53#4672#4725
24M → 40K31135-104#4725#4829
40K → 25.2M1389-76#4829#4905
25.2M → Finish9145-136#4905#5041
TOTALS2049810+1239
📊

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