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BOSTON MARATHON 2025

Paul Casson

Bib: 8031•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 26%
Gender (Male)
#0 / 16105
Top 39%
Masters (Masters Men)
#0 / 10463
Top 26%
Division (M45-49)
#0 / 2386
Top 36%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:24
Rank: #4317
Start → 5K
20:24 | 6:34/mi
10K· 6.21 mi
40:46
Rank: #4212 (+105)
5K → 10K
20:22 | 6:33/mi
15K· 9.32 mi
1:01:42
Rank: #4540 (-328)
10K → 15K
20:56 | 6:44/mi
20K· 12.43 mi
1:23:18
Rank: #5019 (-479)
15K → 20K
21:36 | 6:57/mi
Half· 13.11 mi
1:28:05
Rank: #5158 (-139)
20K → Half
4:47 | 7:01/mi
25K· 15.53 mi
1:45:32
Rank: #5663 (-505)
Half → 25K
17:27 | 7:12/mi
30K· 18.64 mi
2:09:20
Rank: #6248 (-585)
25K → 30K
23:48 | 7:40/mi
20M
2:20:13
Rank: #6453 (-205)
30K → 20M
10:53 | 8:01/mi
21M
2:28:47
Rank: #6612 (-159)
20M → 21M
8:34 | 8:34/mi
35K· 21.75 mi
2:34:38
Rank: #6687 (-75)
21M → 35K
5:51 | 7:49/mi
23M
2:44:54
Rank: #6906 (-219)
35K → 23M
10:16 | 8:12/mi
24M
2:52:58
Rank: #7055 (-149)
23M → 24M
8:04 | 8:04/mi
40K· 24.85 mi
3:00:04
Rank: #7180 (-125)
24M → 40K
7:06 | 8:18/mi
25.2M
3:03:10
Rank: #7237 (-57)
40K → 25.2M
3:06 | 8:59/mi
Finish· 26.22 mi
3:11:09
Rank: #7361 (-124)
25.2M → Finish
7:59 | 7:50/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:28:05
Pace6:43 /mi
2nd Half
Distance13.11 mi
Time1:43:04
Pace7:52 /mi
📊Positive Split: 17.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:27:4120:246:3420:24
6:34
-
10K
6.21 mi10:48:0340:466:3420:22
6:33
-0:01
15K
9.32 mi11:08:591:01:426:3720:56
6:44
+0:11
20K
12.43 mi11:30:351:23:186:4221:36
6:57
+0:13
Half
13.11 mi11:35:221:28:056:434:47
7:01
+0:04
25K
15.53 mi11:52:491:45:326:4817:27
7:12
+0:11
30K
18.64 mi12:16:372:09:206:5623:48
7:40
+0:28
20M
20.00 mi12:27:302:20:137:0110:53
8:01
+0:21
21M
21.00 mi12:36:042:28:477:058:34
8:34
+0:33
35K
21.75 mi12:41:552:34:387:075:51
7:49
-0:45
23M
23.00 mi12:52:112:44:547:1010:16
8:12
+0:23
24M
24.00 mi13:00:152:52:587:128:04
8:04
-0:08
40K
24.85 mi13:07:213:00:047:157:06
8:18
+0:14
25.2M
25.20 mi13:10:273:03:107:163:06
8:59
+0:41
Finish
26.22 mi13:18:263:11:097:187:59
7:50
-1:09

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

6:33 /mi

Average Pace

7:18 /mi

Slowest Pace

8:59 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:45:32

55% of race

Time at Steady Pace

56:35

30% of race

Time at Slower Pace

29:02

15% of race

Average Pace: 7:17 /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 mi10:27:4120:246:3420:24
6:34
#4317
10K
6.21 mi10:48:0340:466:3420:22
6:33
#4212
15K
9.32 mi11:08:591:01:426:3720:56
6:44
#4540
20K
12.43 mi11:30:351:23:186:4221:36
6:57
#5019
Half
13.11 mi11:35:221:28:056:434:47
7:01
#5158
25K
15.53 mi11:52:491:45:326:4817:27
7:12
#5663
30K
18.64 mi12:16:372:09:206:5623:48
7:40
#6248
20M
20.00 mi12:27:302:20:137:0110:53
8:01
#6453
21M
21.00 mi12:36:042:28:477:058:34
8:34
#6612
35K
21.75 mi12:41:552:34:387:075:51
7:49
#6687
23M
23.00 mi12:52:112:44:547:1010:16
8:12
#6906
24M
24.00 mi13:00:152:52:587:128:04
8:04
#7055
40K
24.85 mi13:07:213:00:047:157:06
8:18
#7180
25.2M
25.20 mi13:10:273:03:107:163:06
8:59
#7237
Finish
26.22 mi13:18:263:11:097:187:59
7:50
#7361
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi4317405840585442(Top 19%)5001(Top 31%)5001(Top 210%)
10K6.21 mi3.10 mi4212+1053963+953963+954113(Top 14%)3867(Top 24%)3867(Top 162%)
15K9.32 mi3.11 mi4540-3284263-3004263-3005442(Top 19%)5001(Top 31%)5001(Top 210%)
20K12.43 mi3.11 mi5019-4794672-4094672-4096587(Top 23%)5893(Top 37%)5893(Top 247%)
Half13.11 mi0.68 mi5158-1394786-1144786-1147631(Top 27%)6652(Top 41%)6652(Top 279%)
25K15.53 mi2.42 mi5663-5055198-4125198-4127568(Top 27%)6484(Top 40%)6484(Top 272%)
30K18.64 mi3.11 mi6248-5855632-4345632-4348886(Top 31%)7073(Top 44%)7073(Top 296%)
20M20.00 mi1.36 mi6453-2055778-1465778-14610470(Top 37%)7763(Top 48%)7763(Top 325%)
21M21.00 mi1.00 mi6612-1595871-935871-9310851(Top 38%)7790(Top 48%)7790(Top 326%)
35K21.75 mi0.75 mi6687-755912-415912-4110914(Top 38%)7797(Top 48%)7797(Top 327%)
23M23.00 mi1.25 mi6906-2196037-1256037-12511331(Top 40%)7898(Top 49%)7898(Top 331%)
24M24.00 mi1.00 mi7055-1496103-666103-6611651(Top 41%)7966(Top 49%)7966(Top 334%)
40K24.85 mi0.85 mi7180-1256156-536156-5312122(Top 43%)8100(Top 50%)8100(Top 339%)
25.2M25.20 mi0.35 mi7237-576180-246180-2411626(Top 41%)7760(Top 48%)7760(Top 325%)
Finish26.22 mi1.02 mi7361-1246229-496229-4911637(Top 41%)7826(Top 49%)7826(Top 328%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 19%
×21stories
+97ft-345ft

Overall

5442

Males

5001

M45-49

5001

5K→10K

3.1 - 6.2 mi

Top 14%
×5stories
+79ft-138ft

Overall

4113

Males

3867

M45-49

3867

10K→15K

6.2 - 9.3 mi

Top 19%
×3stories
+67ft-78ft

Overall

5442

Males

5001

M45-49

5001

15K→20K

9.3 - 12.4 mi

Top 23%
×5stories
+106ft-86ft

Overall

6587

Males

5893

M45-49

5893

20K→Half

12.4 - 13.1 mi

Top 27%
×2stories
+19ft-37ft

Overall

7631

Males

6652

M45-49

6652

Half→25K

13.1 - 15.5 mi

Top 27%
×4stories
+66ft-88ft

Overall

7568

Males

6484

M45-49

6484

25K→30K

15.5 - 18.6 mi

Top 31%
×9stories
+181ft-148ft

Overall

8886

Males

7073

M45-49

7073

30K→20M

18.6 - 20.0 mi

Top 37%
×5stories
+64ft-50ft

Overall

10470

Males

7763

M45-49

7763

20M→21M

20.0 - 21.0 mi

Top 38%
×8stories
+106ft-24ft

Overall

10851

Males

7790

M45-49

7790

21M→35K

21.0 - 21.8 mi

Top 38%
×7stories
+17ft-86ft

Overall

10914

Males

7797

M45-49

7797

35K→23M

21.8 - 23.0 mi

Top 40%
×5stories
+23ft-63ft

Overall

11331

Males

7898

M45-49

7898

23M→24M

23.0 - 24.0 mi

Top 41%
×6stories
+12ft-82ft

Overall

11651

Males

7966

M45-49

7966

24M→40K

24.0 - 24.9 mi

Top 43%
×1story
+6ft-20ft

Overall

12122

Males

8100

M45-49

8100

40K→25.2M

24.9 - 25.2 mi

Top 41%
×1story
+13ft-16ft

Overall

11626

Males

7760

M45-49

7760

25.2M→Finish

25.2 - 26.2 mi

Top 41%
×2stories
+22ft-21ft

Overall

11637

Males

7826

M45-49

7826

Passing Analysis

Category:
Athletes Passed
625
Passed By
3669
Net Change
-3044
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4317
5K → 10K20297+105#4317#4212
10K → 15K25353-328#4212#4540
15K → 20K44523-479#4540#5019
20K → Half4143-139#5019#5158
Half → 25K30535-505#5158#5663
25K → 30K61646-585#5663#6248
30K → 20M47252-205#6248#6453
20M → 21M26185-159#6453#6612
21M → 35K33108-75#6612#6687
35K → 23M46265-219#6687#6906
23M → 24M33182-149#6906#7055
24M → 40K30155-125#7055#7180
40K → 25.2M1572-57#7180#7237
25.2M → Finish29153-124#7237#7361
TOTALS6253669-3044
📊

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