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BOSTON MARATHON 2025

Glenn Laenen

Bib: 4899•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 38%
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Top 40%
Division (M40-44)
#0 / 2247
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:00
Rank: #3389
Start → 5K
20:00 | 6:26/mi
10K· 6.21 mi
40:24
Rank: #3800 (-411)
5K → 10K
20:24 | 6:34/mi
15K· 9.32 mi
1:01:03
Rank: #4037 (-237)
10K → 15K
20:39 | 6:39/mi
20K· 12.43 mi
1:23:13
Rank: #4960 (-923)
15K → 20K
22:10 | 7:08/mi
Half· 13.11 mi
1:28:10
Rank: #5227 (-267)
20K → Half
4:57 | 7:15/mi
25K· 15.53 mi
1:46:29
Rank: #6203 (-976)
Half → 25K
18:19 | 7:33/mi
30K· 18.64 mi
2:11:28
Rank: #7019 (-816)
25K → 30K
24:59 | 8:02/mi
20M
2:24:18
Rank: #7863 (-844)
30K → 20M
12:50 | 9:27/mi
21M
2:37:39
Rank: #9851 (-1988)
20M → 21M
13:21 | 13:21/mi
35K· 21.75 mi
2:43:53
Rank: #10045 (-194)
21M → 35K
6:14 | 8:20/mi
23M
2:54:32
Rank: #10257 (-212)
35K → 23M
10:39 | 8:30/mi
24M
3:02:55
Rank: #10407 (-150)
23M → 24M
8:23 | 8:23/mi
40K· 24.85 mi
3:10:16
Rank: #10528 (-121)
24M → 40K
7:21 | 8:36/mi
25.2M
3:13:26
Rank: #10533 (-5)
40K → 25.2M
3:10 | 9:11/mi
Finish· 26.22 mi
3:21:57
Rank: #10710 (-177)
25.2M → Finish
8:31 | 8:21/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:28:10
Pace6:44 /mi
2nd Half
Distance13.11 mi
Time1:53:47
Pace8:41 /mi
📊Positive Split: 29.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:23:2620:006:2620:00
6:26
-
10K
6.21 mi10:43:5040:246:3020:24
6:34
+0:08
15K
9.32 mi11:04:291:01:036:3320:39
6:39
+0:05
20K
12.43 mi11:26:391:23:136:4222:10
7:08
+0:29
Half
13.11 mi11:31:361:28:106:444:57
7:15
+0:07
25K
15.53 mi11:49:551:46:296:5118:19
7:33
+0:18
30K
18.64 mi12:14:542:11:287:0324:59
8:02
+0:29
20M
20.00 mi12:27:442:24:187:1312:50
9:27
+1:25
21M
21.00 mi12:41:052:37:397:3013:21
13:21
+3:54
35K
21.75 mi12:47:192:43:537:326:14
8:20
-5:01
23M
23.00 mi12:57:582:54:327:3510:39
8:30
+0:10
24M
24.00 mi13:06:213:02:557:378:23
8:23
-0:07
40K
24.85 mi13:13:423:10:167:397:21
8:36
+0:13
25.2M
25.20 mi13:16:523:13:267:413:10
9:11
+0:35
Finish
26.22 mi13:25:233:21:577:428:31
8:21
-0:50

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

6:26 /mi

Average Pace

7:42 /mi

Slowest Pace

13:21 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:28:10

44% of race

Time at Steady Pace

1:24:26

42% of race

Time at Slower Pace

29:21

15% of race

Average Pace: 7:42 /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 mi10:23:2620:006:2620:00
6:26
#3389
10K
6.21 mi10:43:5040:246:3020:24
6:34
#3800
15K
9.32 mi11:04:291:01:036:3320:39
6:39
#4037
20K
12.43 mi11:26:391:23:136:4222:10
7:08
#4960
Half
13.11 mi11:31:361:28:106:444:57
7:15
#5227
25K
15.53 mi11:49:551:46:296:5118:19
7:33
#6203
30K
18.64 mi12:14:542:11:287:0324:59
8:02
#7019
20M
20.00 mi12:27:442:24:187:1312:50
9:27
#7863
21M
21.00 mi12:41:052:37:397:3013:21
13:21
#9851
35K
21.75 mi12:47:192:43:537:326:14
8:20
#10045
23M
23.00 mi12:57:582:54:327:3510:39
8:30
#10257
24M
24.00 mi13:06:213:02:557:378:23
8:23
#10407
40K
24.85 mi13:13:423:10:167:397:21
8:36
#10528
25.2M
25.20 mi13:16:523:13:267:413:10
9:11
#10533
Finish
26.22 mi13:25:233:21:577:428:31
8:21
#10710
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi3389322032204636(Top 16%)4340(Top 27%)4340(Top 193%)
10K6.21 mi3.10 mi3800-4113593-3733593-3734211(Top 15%)3961(Top 25%)3961(Top 176%)
15K9.32 mi3.11 mi4037-2373806-2133806-2134636(Top 16%)4340(Top 27%)4340(Top 193%)
20K12.43 mi3.11 mi4960-9234621-8154621-8157721(Top 27%)6692(Top 42%)6692(Top 298%)
Half13.11 mi0.68 mi5227-2674844-2234844-2239576(Top 34%)7811(Top 49%)7811(Top 348%)
25K15.53 mi2.42 mi6203-9765621-7775621-77710391(Top 37%)8083(Top 50%)8083(Top 360%)
30K18.64 mi3.11 mi7019-8166224-6036224-60311667(Top 41%)8505(Top 53%)8505(Top 379%)
20M20.00 mi1.36 mi7863-8446754-5306754-53018884(Top 66%)11626(Top 72%)11626(Top 517%)
21M21.00 mi1.00 mi9851-19887869-11157869-111525502(Top 90%)14627(Top 91%)14627(Top 651%)
35K21.75 mi0.75 mi10045-1947930-617930-6114414(Top 51%)9446(Top 59%)9446(Top 420%)
23M23.00 mi1.25 mi10257-2127986-567986-5613318(Top 47%)8835(Top 55%)8835(Top 393%)
24M24.00 mi1.00 mi10407-1508044-588044-5813731(Top 48%)9009(Top 56%)9009(Top 401%)
40K24.85 mi0.85 mi10528-1218075-318075-3113998(Top 49%)8990(Top 56%)8990(Top 400%)
25.2M25.20 mi0.35 mi10533-58059+168059+1612742(Top 45%)8327(Top 52%)8327(Top 371%)
Finish26.22 mi1.02 mi10710-1778103-448103-4415258(Top 54%)9588(Top 60%)9588(Top 427%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 16%
×21stories
+97ft-345ft

Overall

4636

Males

4340

M40-44

4340

5K→10K

3.1 - 6.2 mi

Top 15%
×5stories
+79ft-138ft

Overall

4211

Males

3961

M40-44

3961

10K→15K

6.2 - 9.3 mi

Top 16%
×3stories
+67ft-78ft

Overall

4636

Males

4340

M40-44

4340

15K→20K

9.3 - 12.4 mi

Top 27%
×5stories
+106ft-86ft

Overall

7721

Males

6692

M40-44

6692

20K→Half

12.4 - 13.1 mi

Top 34%
×2stories
+19ft-37ft

Overall

9576

Males

7811

M40-44

7811

Half→25K

13.1 - 15.5 mi

Top 37%
×4stories
+66ft-88ft

Overall

10391

Males

8083

M40-44

8083

25K→30K

15.5 - 18.6 mi

Top 41%
×9stories
+181ft-148ft

Overall

11667

Males

8505

M40-44

8505

30K→20M

18.6 - 20.0 mi

Top 66%
×5stories
+64ft-50ft

Overall

18884

Males

11626

M40-44

11626

20M→21M

20.0 - 21.0 mi

Top 90%
×8stories
+106ft-24ft

Overall

25502

Males

14627

M40-44

14627

21M→35K

21.0 - 21.8 mi

Top 51%
×7stories
+17ft-86ft

Overall

14414

Males

9446

M40-44

9446

35K→23M

21.8 - 23.0 mi

Top 47%
×5stories
+23ft-63ft

Overall

13318

Males

8835

M40-44

8835

23M→24M

23.0 - 24.0 mi

Top 48%
×6stories
+12ft-82ft

Overall

13731

Males

9009

M40-44

9009

24M→40K

24.0 - 24.9 mi

Top 49%
×1story
+6ft-20ft

Overall

13998

Males

8990

M40-44

8990

40K→25.2M

24.9 - 25.2 mi

Top 45%
×1story
+13ft-16ft

Overall

12742

Males

8327

M40-44

8327

25.2M→Finish

25.2 - 26.2 mi

Top 54%
×2stories
+22ft-21ft

Overall

15258

Males

9588

M40-44

9588

Passing Analysis

Category:
Athletes Passed
362
Passed By
7681
Net Change
-7321
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3389
5K → 10K22433-411#3389#3800
10K → 15K35272-237#3800#4037
15K → 20K13936-923#4037#4960
20K → Half1268-267#4960#5227
Half → 25K13989-976#5227#6203
25K → 30K39855-816#6203#7019
30K → 20M8852-844#7019#7863
20M → 21M11989-1988#7863#9851
21M → 35K27219-194#9851#10045
35K → 23M57269-212#10045#10257
23M → 24M41191-150#10257#10407
24M → 40K40161-121#10407#10528
40K → 25.2M3641-5#10528#10533
25.2M → Finish29206-177#10533#10710
TOTALS3627681-7321
📊

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