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BOSTON MARATHON 2025

Justin Seamans

Bib: 7750•M

ME

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 17%
Gender (Male)
#0 / 16105
Top 28%
Masters (Masters Men)
#0 / 10463
Top 14%
Division (M40-44)
#0 / 2247
Top 35%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:41
Rank: #5068
Start → 5K
20:41 | 6:39/mi
10K· 6.21 mi
41:12
Rank: #4739 (+329)
5K → 10K
20:31 | 6:36/mi
15K· 9.32 mi
1:01:53
Rank: #4703 (+36)
10K → 15K
20:41 | 6:39/mi
20K· 12.43 mi
1:23:10
Rank: #4922 (-219)
15K → 20K
21:17 | 6:51/mi
Half· 13.11 mi
1:27:51
Rank: #5009 (-87)
20K → Half
4:41 | 6:52/mi
25K· 15.53 mi
1:44:42
Rank: #5157 (-148)
Half → 25K
16:51 | 6:57/mi
30K· 18.64 mi
2:06:45
Rank: #5152 (+5)
25K → 30K
22:03 | 7:06/mi
20M
2:16:28
Rank: #5127 (+25)
30K → 20M
9:43 | 7:09/mi
21M
2:24:00
Rank: #5068 (+59)
20M → 21M
7:32 | 7:32/mi
35K· 21.75 mi
2:29:12
Rank: #5068
21M → 35K
5:12 | 6:57/mi
23M
2:38:10
Rank: #5021 (+47)
35K → 23M
8:58 | 7:10/mi
24M
2:45:12
Rank: #5004 (+17)
23M → 24M
7:02 | 7:02/mi
40K· 24.85 mi
2:51:26
Rank: #4998 (+6)
24M → 40K
6:14 | 7:17/mi
25.2M
2:54:07
Rank: #4981 (+17)
40K → 25.2M
2:41 | 7:47/mi
Finish· 26.22 mi
3:01:00
Rank: #4916 (+65)
25.2M → Finish
6:53 | 6:45/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:27:51
Pace6:42 /mi
2nd Half
Distance13.11 mi
Time1:33:09
Pace7:06 /mi
📊Positive Split: 6.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:29:2620:416:3920:41
6:39
-
10K
6.21 mi10:49:5741:126:3820:31
6:36
-0:03
15K
9.32 mi11:10:381:01:536:3820:41
6:39
+0:03
20K
12.43 mi11:31:551:23:106:4221:17
6:51
+0:12
Half
13.11 mi11:36:361:27:516:424:41
6:52
+0:01
25K
15.53 mi11:53:271:44:426:4416:51
6:57
+0:05
30K
18.64 mi12:15:302:06:456:4822:03
7:06
+0:09
20M
20.00 mi12:25:132:16:286:499:43
7:09
+0:03
21M
21.00 mi12:32:452:24:006:517:32
7:32
+0:23
35K
21.75 mi12:37:572:29:126:525:12
6:57
-0:35
23M
23.00 mi12:46:552:38:106:538:58
7:10
+0:13
24M
24.00 mi12:53:572:45:126:537:02
7:02
-0:08
40K
24.85 mi13:00:112:51:266:546:14
7:17
+0:15
25.2M
25.20 mi13:02:522:54:076:552:41
7:47
+0:30
Finish
26.22 mi13:09:453:01:006:556:53
6:45
-1:02

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

6:55 /mi

Slowest Pace

7:47 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:44:33

91% of race

Time at Steady Pace

16:27

9% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:54 /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 mi10:29:2620:416:3920:41
6:39
#5068
10K
6.21 mi10:49:5741:126:3820:31
6:36
#4739
15K
9.32 mi11:10:381:01:536:3820:41
6:39
#4703
20K
12.43 mi11:31:551:23:106:4221:17
6:51
#4922
Half
13.11 mi11:36:361:27:516:424:41
6:52
#5009
25K
15.53 mi11:53:271:44:426:4416:51
6:57
#5157
30K
18.64 mi12:15:302:06:456:4822:03
7:06
#5152
20M
20.00 mi12:25:132:16:286:499:43
7:09
#5127
21M
21.00 mi12:32:452:24:006:517:32
7:32
#5068
35K
21.75 mi12:37:572:29:126:525:12
6:57
#5068
23M
23.00 mi12:46:552:38:106:538:58
7:10
#5021
24M
24.00 mi12:53:572:45:126:537:02
7:02
#5004
40K
24.85 mi13:00:112:51:266:546:14
7:17
#4998
25.2M
25.20 mi13:02:522:54:076:552:41
7:47
#4981
Finish
26.22 mi13:09:453:01:006:556:53
6:45
#4916
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi5068473047304703(Top 17%)4396(Top 27%)4396(Top 196%)
10K6.21 mi3.10 mi4739+3294436+2944436+2944493(Top 16%)4209(Top 26%)4209(Top 187%)
15K9.32 mi3.11 mi4703+364402+344402+344703(Top 17%)4396(Top 27%)4396(Top 196%)
20K12.43 mi3.11 mi4922-2194588-1864588-1865767(Top 20%)5249(Top 33%)5249(Top 234%)
Half13.11 mi0.68 mi5009-874659-714659-716573(Top 23%)5869(Top 36%)5869(Top 261%)
25K15.53 mi2.42 mi5157-1484779-1204779-1205962(Top 21%)5366(Top 33%)5366(Top 239%)
30K18.64 mi3.11 mi5152+54741+384741+385288(Top 19%)4768(Top 30%)4768(Top 212%)
20M20.00 mi1.36 mi5127+254713+284713+284918(Top 17%)4421(Top 27%)4421(Top 197%)
21M21.00 mi1.00 mi5068+594656+574656+574759(Top 17%)4193(Top 26%)4193(Top 187%)
35K21.75 mi0.75 mi50684652+44652+45014(Top 18%)4381(Top 27%)4381(Top 195%)
23M23.00 mi1.25 mi5021+474601+514601+514642(Top 16%)4057(Top 25%)4057(Top 181%)
24M24.00 mi1.00 mi5004+174576+254576+254801(Top 17%)4115(Top 26%)4115(Top 183%)
40K24.85 mi0.85 mi4998+64563+134563+135564(Top 20%)4583(Top 28%)4583(Top 204%)
25.2M25.20 mi0.35 mi4981+174545+184545+184709(Top 17%)3907(Top 24%)3907(Top 174%)
Finish26.22 mi1.02 mi4916+654478+674478+674209(Top 15%)3586(Top 22%)3586(Top 160%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 17%
×21stories
+97ft-345ft

Overall

4703

Males

4396

M40-44

4396

5K→10K

3.1 - 6.2 mi

Top 16%
×5stories
+79ft-138ft

Overall

4493

Males

4209

M40-44

4209

10K→15K

6.2 - 9.3 mi

Top 17%
×3stories
+67ft-78ft

Overall

4703

Males

4396

M40-44

4396

15K→20K

9.3 - 12.4 mi

Top 20%
×5stories
+106ft-86ft

Overall

5767

Males

5249

M40-44

5249

20K→Half

12.4 - 13.1 mi

Top 23%
×2stories
+19ft-37ft

Overall

6573

Males

5869

M40-44

5869

Half→25K

13.1 - 15.5 mi

Top 21%
×4stories
+66ft-88ft

Overall

5962

Males

5366

M40-44

5366

25K→30K

15.5 - 18.6 mi

Top 19%
×9stories
+181ft-148ft

Overall

5288

Males

4768

M40-44

4768

30K→20M

18.6 - 20.0 mi

Top 17%
×5stories
+64ft-50ft

Overall

4918

Males

4421

M40-44

4421

20M→21M

20.0 - 21.0 mi

Top 17%
×8stories
+106ft-24ft

Overall

4759

Males

4193

M40-44

4193

21M→35K

21.0 - 21.8 mi

Top 18%
×7stories
+17ft-86ft

Overall

5014

Males

4381

M40-44

4381

35K→23M

21.8 - 23.0 mi

Top 16%
×5stories
+23ft-63ft

Overall

4642

Males

4057

M40-44

4057

23M→24M

23.0 - 24.0 mi

Top 17%
×6stories
+12ft-82ft

Overall

4801

Males

4115

M40-44

4115

24M→40K

24.0 - 24.9 mi

Top 20%
×1story
+6ft-20ft

Overall

5564

Males

4583

M40-44

4583

40K→25.2M

24.9 - 25.2 mi

Top 17%
×1story
+13ft-16ft

Overall

4709

Males

3907

M40-44

3907

25.2M→Finish

25.2 - 26.2 mi

Top 15%
×2stories
+22ft-21ft

Overall

4209

Males

3586

M40-44

3586

Passing Analysis

Category:
Athletes Passed
1398
Passed By
1246
Net Change
+152
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5068
5K → 10K37950+329#5068#4739
10K → 15K138102+36#4739#4703
15K → 20K64283-219#4703#4922
20K → Half794-87#4922#5009
Half → 25K63211-148#5009#5157
25K → 30K172167+5#5157#5152
30K → 20M8055+25#5152#5127
20M → 21M10243+59#5127#5068
21M → 35K56560#5068#5068
35K → 23M10356+47#5068#5021
23M → 24M6649+17#5021#5004
24M → 40K5145+6#5004#4998
40K → 25.2M3417+17#4998#4981
25.2M → Finish8318+65#4981#4916
TOTALS13981246+152
📊

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