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BOSTON MARATHON 2025

Shaun Cox

Bib: 7291•M

AR

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 39%
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Top 41%
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
22:09
Rank: #8882
Start → 5K
22:09 | 7:08/mi
10K· 6.21 mi
44:02
Rank: #8551 (+331)
5K → 10K
21:53 | 7:03/mi
15K· 9.32 mi
1:06:40
Rank: #8932 (-381)
10K → 15K
22:38 | 7:17/mi
20K· 12.43 mi
1:29:14
Rank: #8800 (+132)
15K → 20K
22:34 | 7:16/mi
Half· 13.11 mi
1:34:11
Rank: #8833 (-33)
20K → Half
4:57 | 7:15/mi
25K· 15.53 mi
1:53:54
Rank: #9844 (-1011)
Half → 25K
19:43 | 8:08/mi
30K· 18.64 mi
2:18:59
Rank: #10200 (-356)
25K → 30K
25:05 | 8:04/mi
20M
2:30:39
Rank: #10537 (-337)
30K → 20M
11:40 | 8:35/mi
21M
2:39:29
Rank: #10632 (-95)
20M → 21M
8:50 | 8:50/mi
35K· 21.75 mi
2:45:35
Rank: #10709 (-77)
21M → 35K
6:06 | 8:09/mi
23M
2:56:09
Rank: #10805 (-96)
35K → 23M
10:34 | 8:26/mi
24M
3:04:29
Rank: #10909 (-104)
23M → 24M
8:20 | 8:20/mi
40K· 24.85 mi
3:11:45
Rank: #10979 (-70)
24M → 40K
7:16 | 8:30/mi
25.2M
3:14:53
Rank: #10978 (+1)
40K → 25.2M
3:08 | 9:05/mi
Finish· 26.22 mi
3:23:16
Rank: #11107 (-129)
25.2M → Finish
8:23 | 8:14/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:34:11
Pace7:11 /mi
2nd Half
Distance13.11 mi
Time1:49:05
Pace8:19 /mi
📊Positive Split: 15.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:29:0622:097:0822:09
7:08
-
10K
6.21 mi10:50:5944:027:0521:53
7:03
-0:05
15K
9.32 mi11:13:371:06:407:0922:38
7:17
+0:14
20K
12.43 mi11:36:111:29:147:1122:34
7:16
-0:01
Half
13.11 mi11:41:081:34:117:114:57
7:15
-0:01
25K
15.53 mi12:00:511:53:547:2019:43
8:08
+0:53
30K
18.64 mi12:25:562:18:597:2725:05
8:04
-0:04
20M
20.00 mi12:37:362:30:397:3211:40
8:35
+0:31
21M
21.00 mi12:46:262:39:297:368:50
8:50
+0:15
35K
21.75 mi12:52:322:45:357:376:06
8:09
-0:41
23M
23.00 mi13:03:062:56:097:4010:34
8:26
+0:17
24M
24.00 mi13:11:263:04:297:418:20
8:20
-0:06
40K
24.85 mi13:18:423:11:457:437:16
8:30
+0:10
25.2M
25.20 mi13:21:503:14:537:443:08
9:05
+0:35
Finish
26.22 mi13:30:133:23:167:458:23
8:14
-0:51

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

7:03 /mi

Average Pace

7:45 /mi

Slowest Pace

9:05 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:34:11

46% of race

Time at Steady Pace

1:18:11

38% of race

Time at Slower Pace

30:54

15% of race

Average Pace: 7:45 /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 mi10:29:0622:097:0822:09
7:08
#8882
10K
6.21 mi10:50:5944:027:0521:53
7:03
#8551
15K
9.32 mi11:13:371:06:407:0922:38
7:17
#8932
20K
12.43 mi11:36:111:29:147:1122:34
7:16
#8800
Half
13.11 mi11:41:081:34:117:114:57
7:15
#8833
25K
15.53 mi12:00:511:53:547:2019:43
8:08
#9844
30K
18.64 mi12:25:562:18:597:2725:05
8:04
#10200
20M
20.00 mi12:37:362:30:397:3211:40
8:35
#10537
21M
21.00 mi12:46:262:39:297:368:50
8:50
#10632
35K
21.75 mi12:52:322:45:357:376:06
8:09
#10709
23M
23.00 mi13:03:062:56:097:4010:34
8:26
#10805
24M
24.00 mi13:11:263:04:297:418:20
8:20
#10909
40K
24.85 mi13:18:423:11:457:437:16
8:30
#10979
25.2M
25.20 mi13:21:503:14:537:443:08
9:05
#10978
Finish
26.22 mi13:30:133:23:167:458:23
8:14
#11107
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi8882754175419875(Top 35%)8017(Top 50%)8017(Top 357%)
10K6.21 mi3.10 mi8551+3317321+2207321+2208243(Top 29%)7133(Top 44%)7133(Top 317%)
15K9.32 mi3.11 mi8932-3817544-2237544-2239875(Top 35%)8017(Top 50%)8017(Top 357%)
20K12.43 mi3.11 mi8800+1327443+1017443+1018726(Top 31%)7292(Top 45%)7292(Top 325%)
Half13.11 mi0.68 mi8833-337458-157458-159579(Top 34%)7814(Top 49%)7814(Top 348%)
25K15.53 mi2.42 mi9844-10117984-5267984-52614820(Top 52%)10121(Top 63%)10121(Top 450%)
30K18.64 mi3.11 mi10200-3568115-1318115-13111898(Top 42%)8621(Top 54%)8621(Top 384%)
20M20.00 mi1.36 mi10537-3378237-1228237-12214311(Top 50%)9593(Top 60%)9593(Top 427%)
21M21.00 mi1.00 mi10632-958246-98246-912471(Top 44%)8589(Top 53%)8589(Top 382%)
35K21.75 mi0.75 mi10709-778268-228268-2213247(Top 47%)8903(Top 55%)8903(Top 396%)
23M23.00 mi1.25 mi10805-968269-18269-112900(Top 45%)8646(Top 54%)8646(Top 385%)
24M24.00 mi1.00 mi10909-1048276-78276-713444(Top 47%)8863(Top 55%)8863(Top 394%)
40K24.85 mi0.85 mi10979-708267+98267+913385(Top 47%)8696(Top 54%)8696(Top 387%)
25.2M25.20 mi0.35 mi10978+18252+158252+1512210(Top 43%)8094(Top 50%)8094(Top 360%)
Finish26.22 mi1.02 mi11107-1298277-258277-2514417(Top 51%)9211(Top 57%)9211(Top 410%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 35%
×21stories
+97ft-345ft

Overall

9875

Males

8017

M40-44

8017

5K→10K

3.1 - 6.2 mi

Top 29%
×5stories
+79ft-138ft

Overall

8243

Males

7133

M40-44

7133

10K→15K

6.2 - 9.3 mi

Top 35%
×3stories
+67ft-78ft

Overall

9875

Males

8017

M40-44

8017

15K→20K

9.3 - 12.4 mi

Top 31%
×5stories
+106ft-86ft

Overall

8726

Males

7292

M40-44

7292

20K→Half

12.4 - 13.1 mi

Top 34%
×2stories
+19ft-37ft

Overall

9579

Males

7814

M40-44

7814

Half→25K

13.1 - 15.5 mi

Top 52%
×4stories
+66ft-88ft

Overall

14820

Males

10121

M40-44

10121

25K→30K

15.5 - 18.6 mi

Top 42%
×9stories
+181ft-148ft

Overall

11898

Males

8621

M40-44

8621

30K→20M

18.6 - 20.0 mi

Top 50%
×5stories
+64ft-50ft

Overall

14311

Males

9593

M40-44

9593

20M→21M

20.0 - 21.0 mi

Top 44%
×8stories
+106ft-24ft

Overall

12471

Males

8589

M40-44

8589

21M→35K

21.0 - 21.8 mi

Top 47%
×7stories
+17ft-86ft

Overall

13247

Males

8903

M40-44

8903

35K→23M

21.8 - 23.0 mi

Top 45%
×5stories
+23ft-63ft

Overall

12900

Males

8646

M40-44

8646

23M→24M

23.0 - 24.0 mi

Top 47%
×6stories
+12ft-82ft

Overall

13444

Males

8863

M40-44

8863

24M→40K

24.0 - 24.9 mi

Top 47%
×1story
+6ft-20ft

Overall

13385

Males

8696

M40-44

8696

40K→25.2M

24.9 - 25.2 mi

Top 43%
×1story
+13ft-16ft

Overall

12210

Males

8094

M40-44

8094

25.2M→Finish

25.2 - 26.2 mi

Top 51%
×2stories
+22ft-21ft

Overall

14417

Males

9211

M40-44

9211

Passing Analysis

Category:
Athletes Passed
1321
Passed By
3544
Net Change
-2225
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8882
5K → 10K42190+331#8882#8551
10K → 15K63444-381#8551#8932
15K → 20K22896+132#8932#8800
20K → Half2154-33#8800#8833
Half → 25K291040-1011#8833#9844
25K → 30K137491-356#9844#10200
30K → 20M48385-337#10200#10537
20M → 21M81176-95#10537#10632
21M → 35K29106-77#10632#10709
35K → 23M83179-96#10709#10805
23M → 24M52156-104#10805#10909
24M → 40K54124-70#10909#10979
40K → 25.2M4342+1#10979#10978
25.2M → Finish32161-129#10978#11107
TOTALS13213544-2225
📊

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