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BOSTON MARATHON 2025

Pierrick Lafreniere

Bib: 4502•M

QC

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 10%
Gender (Male)
#0 / 16105
Top 17%
Division (M18-39)
#0 / 5642
Top 38%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:18
Rank: #4072
Start → 5K
20:18 | 6:32/mi
10K· 6.21 mi
40:32
Rank: #3935 (+137)
5K → 10K
20:14 | 6:31/mi
15K· 9.32 mi
1:00:53
Rank: #3897 (+38)
10K → 15K
20:21 | 6:33/mi
20K· 12.43 mi
1:21:18
Rank: #3772 (+125)
15K → 20K
20:25 | 6:34/mi
Half· 13.11 mi
1:25:43
Rank: #3757 (+15)
20K → Half
4:25 | 6:28/mi
25K· 15.53 mi
1:41:38
Rank: #3644 (+113)
Half → 25K
15:55 | 6:34/mi
30K· 18.64 mi
2:02:22
Rank: #3412 (+232)
25K → 30K
20:44 | 6:40/mi
20M
2:11:28
Rank: #3295 (+117)
30K → 20M
9:06 | 6:42/mi
21M
2:18:24
Rank: #3173 (+122)
20M → 21M
6:56 | 6:56/mi
35K· 21.75 mi
2:23:18
Rank: #3133 (+40)
21M → 35K
4:54 | 6:33/mi
23M
2:31:43
Rank: #3017 (+116)
35K → 23M
8:25 | 6:43/mi
24M
2:38:19
Rank: #2970 (+47)
23M → 24M
6:36 | 6:36/mi
40K· 24.85 mi
2:44:07
Rank: #2919 (+51)
24M → 40K
5:48 | 6:47/mi
25.2M
2:46:40
Rank: #2905 (+14)
40K → 25.2M
2:33 | 7:24/mi
Finish· 26.22 mi
2:53:03
Rank: #2822 (+83)
25.2M → Finish
6:23 | 6:16/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:25:43
Pace6:32 /mi
2nd Half
Distance13.11 mi
Time1:27:20
Pace6:40 /mi
📊Positive Split: 1.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:24:2120:186:3220:18
6:32
-
10K
6.21 mi10:44:3540:326:3120:14
6:31
-0:01
15K
9.32 mi11:04:561:00:536:3220:21
6:33
+0:02
20K
12.43 mi11:25:211:21:186:3320:25
6:34
+0:01
Half
13.11 mi11:29:461:25:436:324:25
6:28
-0:06
25K
15.53 mi11:45:411:41:386:3315:55
6:34
+0:06
30K
18.64 mi12:06:252:02:226:3420:44
6:40
+0:06
20M
20.00 mi12:15:312:11:286:349:06
6:42
+0:02
21M
21.00 mi12:22:272:18:246:356:56
6:56
+0:14
35K
21.75 mi12:27:212:23:186:354:54
6:33
-0:23
23M
23.00 mi12:35:462:31:436:368:25
6:43
+0:10
24M
24.00 mi12:42:222:38:196:366:36
6:36
-0:07
40K
24.85 mi12:48:102:44:076:365:48
6:47
+0:11
25.2M
25.20 mi12:50:432:46:406:372:33
7:24
+0:37
Finish
26.22 mi12:57:062:53:036:366:23
6:16
-1:08

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

6:16 /mi

Average Pace

6:36 /mi

Slowest Pace

7:24 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:43:34

95% of race

Time at Steady Pace

6:56

4% of race

Time at Slower Pace

2:33

1% of race

Average Pace: 6:36 /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 mi10:24:2120:186:3220:18
6:32
#4072
10K
6.21 mi10:44:3540:326:3120:14
6:31
#3935
15K
9.32 mi11:04:561:00:536:3220:21
6:33
#3897
20K
12.43 mi11:25:211:21:186:3320:25
6:34
#3772
Half
13.11 mi11:29:461:25:436:324:25
6:28
#3757
25K
15.53 mi11:45:411:41:386:3315:55
6:34
#3644
30K
18.64 mi12:06:252:02:226:3420:44
6:40
#3412
20M
20.00 mi12:15:312:11:286:349:06
6:42
#3295
21M
21.00 mi12:22:272:18:246:356:56
6:56
#3173
35K
21.75 mi12:27:212:23:186:354:54
6:33
#3133
23M
23.00 mi12:35:462:31:436:368:25
6:43
#3017
24M
24.00 mi12:42:222:38:196:366:36
6:36
#2970
40K
24.85 mi12:48:102:44:076:365:48
6:47
#2919
25.2M
25.20 mi12:50:432:46:406:372:33
7:24
#2905
Finish
26.22 mi12:57:062:53:036:366:23
6:16
#2822
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi4072383938393860(Top 14%)3640(Top 23%)3640(Top 65%)
10K6.21 mi3.10 mi3935+1373719+1203719+1203801(Top 13%)3582(Top 22%)3582(Top 63%)
15K9.32 mi3.11 mi3897+383675+443675+443860(Top 14%)3640(Top 23%)3640(Top 65%)
20K12.43 mi3.11 mi3772+1253559+1163559+1163517(Top 12%)3327(Top 21%)3327(Top 59%)
Half13.11 mi0.68 mi3757+153546+133546+133451(Top 12%)3267(Top 20%)3267(Top 58%)
25K15.53 mi2.42 mi3644+1133441+1053441+1053224(Top 11%)3052(Top 19%)3052(Top 54%)
30K18.64 mi3.11 mi3412+2323227+2143227+2142752(Top 10%)2604(Top 16%)2604(Top 46%)
20M20.00 mi1.36 mi3295+1173119+1083119+1082437(Top 9%)2298(Top 14%)2298(Top 41%)
21M21.00 mi1.00 mi3173+1223004+1153004+1151992(Top 7%)1875(Top 12%)1875(Top 33%)
35K21.75 mi0.75 mi3133+402966+382966+382692(Top 9%)2490(Top 15%)2490(Top 44%)
23M23.00 mi1.25 mi3017+1162855+1112855+1112333(Top 8%)2171(Top 13%)2171(Top 38%)
24M24.00 mi1.00 mi2970+472809+462809+462476(Top 9%)2280(Top 14%)2280(Top 40%)
40K24.85 mi0.85 mi2919+512759+502759+502740(Top 10%)2484(Top 15%)2484(Top 44%)
25.2M25.20 mi0.35 mi2905+142749+102749+102873(Top 10%)2552(Top 16%)2552(Top 45%)
Finish26.22 mi1.02 mi2822+832670+792670+791756(Top 6%)1626(Top 10%)1626(Top 29%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 14%
×21stories
+97ft-345ft

Overall

3860

Males

3640

M18-39

3640

5K→10K

3.1 - 6.2 mi

Top 13%
×5stories
+79ft-138ft

Overall

3801

Males

3582

M18-39

3582

10K→15K

6.2 - 9.3 mi

Top 14%
×3stories
+67ft-78ft

Overall

3860

Males

3640

M18-39

3640

15K→20K

9.3 - 12.4 mi

Top 12%
×5stories
+106ft-86ft

Overall

3517

Males

3327

M18-39

3327

20K→Half

12.4 - 13.1 mi

Top 12%
×2stories
+19ft-37ft

Overall

3451

Males

3267

M18-39

3267

Half→25K

13.1 - 15.5 mi

Top 11%
×4stories
+66ft-88ft

Overall

3224

Males

3052

M18-39

3052

25K→30K

15.5 - 18.6 mi

Top 10%
×9stories
+181ft-148ft

Overall

2752

Males

2604

M18-39

2604

30K→20M

18.6 - 20.0 mi

Top 9%
×5stories
+64ft-50ft

Overall

2437

Males

2298

M18-39

2298

20M→21M

20.0 - 21.0 mi

Top 7%
×8stories
+106ft-24ft

Overall

1992

Males

1875

M18-39

1875

21M→35K

21.0 - 21.8 mi

Top 9%
×7stories
+17ft-86ft

Overall

2692

Males

2490

M18-39

2490

35K→23M

21.8 - 23.0 mi

Top 8%
×5stories
+23ft-63ft

Overall

2333

Males

2171

M18-39

2171

23M→24M

23.0 - 24.0 mi

Top 9%
×6stories
+12ft-82ft

Overall

2476

Males

2280

M18-39

2280

24M→40K

24.0 - 24.9 mi

Top 10%
×1story
+6ft-20ft

Overall

2740

Males

2484

M18-39

2484

40K→25.2M

24.9 - 25.2 mi

Top 10%
×1story
+13ft-16ft

Overall

2873

Males

2552

M18-39

2552

25.2M→Finish

25.2 - 26.2 mi

Top 6%
×2stories
+22ft-21ft

Overall

1756

Males

1626

M18-39

1626

Passing Analysis

Category:
Athletes Passed
1575
Passed By
325
Net Change
+1250
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4072
5K → 10K23295+137#4072#3935
10K → 15K11577+38#3935#3897
15K → 20K15429+125#3897#3772
20K → Half249+15#3772#3757
Half → 25K13118+113#3757#3644
25K → 30K24311+232#3644#3412
30K → 20M13013+117#3412#3295
20M → 21M1286+122#3295#3173
21M → 35K5313+40#3173#3133
35K → 23M12812+116#3133#3017
23M → 24M6215+47#3017#2970
24M → 40K6716+51#2970#2919
40K → 25.2M206+14#2919#2905
25.2M → Finish885+83#2905#2822
TOTALS1575325+1250
📊

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