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BOSTON MARATHON 2025

Casey Corman

Bib: 4479•M

CA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 11%
Gender (Male)
#0 / 16105
Top 18%
Division (M18-39)
#0 / 5642
Top 40%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:46
Rank: #2839
Start → 5K
19:46 | 6:22/mi
10K· 6.21 mi
39:36
Rank: #2857 (-18)
5K → 10K
19:50 | 6:23/mi
15K· 9.32 mi
59:30
Rank: #2886 (-29)
10K → 15K
19:54 | 6:24/mi
20K· 12.43 mi
1:19:48
Rank: #2991 (-105)
15K → 20K
20:18 | 6:32/mi
Half· 13.11 mi
1:24:11
Rank: #2996 (-5)
20K → Half
4:23 | 6:25/mi
25K· 15.53 mi
1:40:25
Rank: #3152 (-156)
Half → 25K
16:14 | 6:42/mi
30K· 18.64 mi
2:01:54
Rank: #3260 (-108)
25K → 30K
21:29 | 6:55/mi
20M
2:11:31
Rank: #3307 (-47)
30K → 20M
9:37 | 7:05/mi
21M
2:19:03
Rank: #3375 (-68)
20M → 21M
7:32 | 7:32/mi
35K· 21.75 mi
2:24:13
Rank: #3395 (-20)
21M → 35K
5:10 | 6:54/mi
23M
2:33:05
Rank: #3383 (+12)
35K → 23M
8:52 | 7:05/mi
24M
2:39:48
Rank: #3327 (+56)
23M → 24M
6:43 | 6:43/mi
40K· 24.85 mi
2:45:36
Rank: #3275 (+52)
24M → 40K
5:48 | 6:47/mi
25.2M
2:48:07
Rank: #3235 (+40)
40K → 25.2M
2:31 | 7:18/mi
Finish· 26.22 mi
2:54:25
Rank: #3102 (+133)
25.2M → Finish
6:18 | 6:11/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:24:11
Pace6:25 /mi
2nd Half
Distance13.11 mi
Time1:30:14
Pace6:53 /mi
📊Positive Split: 7.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:5319:466:2219:46
6:22
-
10K
6.21 mi10:41:4339:366:2219:50
6:23
+0:01
15K
9.32 mi11:01:3759:306:2319:54
6:24
+0:01
20K
12.43 mi11:21:551:19:486:2520:18
6:32
+0:08
Half
13.11 mi11:26:181:24:116:254:23
6:25
-0:07
25K
15.53 mi11:42:321:40:256:2816:14
6:42
+0:17
30K
18.64 mi12:04:012:01:546:3221:29
6:55
+0:13
20M
20.00 mi12:13:382:11:316:359:37
7:05
+0:10
21M
21.00 mi12:21:102:19:036:377:32
7:32
+0:27
35K
21.75 mi12:26:202:24:136:385:10
6:54
-0:38
23M
23.00 mi12:35:122:33:056:398:52
7:05
+0:11
24M
24.00 mi12:41:552:39:486:406:43
6:43
-0:22
40K
24.85 mi12:47:432:45:366:405:48
6:47
+0:04
25.2M
25.20 mi12:50:142:48:076:402:31
7:18
+0:31
Finish
26.22 mi12:56:322:54:256:396:18
6:11
-1:07

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

6:11 /mi

Average Pace

6:39 /mi

Slowest Pace

7:32 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:10:11

40% of race

Time at Steady Pace

54:13

31% of race

Time at Slower Pace

50:01

29% of race

Average Pace: 6:39 /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 mi10:21:5319:466:2219:46
6:22
#2839
10K
6.21 mi10:41:4339:366:2219:50
6:23
#2857
15K
9.32 mi11:01:3759:306:2319:54
6:24
#2886
20K
12.43 mi11:21:551:19:486:2520:18
6:32
#2991
Half
13.11 mi11:26:181:24:116:254:23
6:25
#2996
25K
15.53 mi11:42:321:40:256:2816:14
6:42
#3152
30K
18.64 mi12:04:012:01:546:3221:29
6:55
#3260
20M
20.00 mi12:13:382:11:316:359:37
7:05
#3307
21M
21.00 mi12:21:102:19:036:377:32
7:32
#3375
35K
21.75 mi12:26:202:24:136:385:10
6:54
#3395
23M
23.00 mi12:35:122:33:056:398:52
7:05
#3383
24M
24.00 mi12:41:552:39:486:406:43
6:43
#3327
40K
24.85 mi12:47:432:45:366:405:48
6:47
#3275
25.2M
25.20 mi12:50:142:48:076:402:31
7:18
#3235
Finish
26.22 mi12:56:322:54:256:396:18
6:11
#3102
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi2839270227022971(Top 10%)2830(Top 18%)2830(Top 50%)
10K6.21 mi3.10 mi2857-182721-192721-192931(Top 10%)2790(Top 17%)2790(Top 49%)
15K9.32 mi3.11 mi2886-292750-292750-292971(Top 10%)2830(Top 18%)2830(Top 50%)
20K12.43 mi3.11 mi2991-1052851-1012851-1013304(Top 12%)3129(Top 19%)3129(Top 55%)
Half13.11 mi0.68 mi2996-52855-42855-43189(Top 11%)3030(Top 19%)3030(Top 54%)
25K15.53 mi2.42 mi3152-1563004-1493004-1494068(Top 14%)3790(Top 24%)3790(Top 67%)
30K18.64 mi3.11 mi3260-1083089-853089-854154(Top 15%)3817(Top 24%)3817(Top 68%)
20M20.00 mi1.36 mi3307-473129-403129-404511(Top 16%)4095(Top 25%)4095(Top 73%)
21M21.00 mi1.00 mi3375-683189-603189-604743(Top 17%)4177(Top 26%)4177(Top 74%)
35K21.75 mi0.75 mi3395-203204-153204-154716(Top 17%)4159(Top 26%)4159(Top 74%)
23M23.00 mi1.25 mi3383+123187+173187+174206(Top 15%)3735(Top 23%)3735(Top 66%)
24M24.00 mi1.00 mi3327+563131+563131+563041(Top 11%)2754(Top 17%)2754(Top 49%)
40K24.85 mi0.85 mi3275+523083+483083+482746(Top 10%)2490(Top 15%)2490(Top 44%)
25.2M25.20 mi0.35 mi3235+403045+383045+382480(Top 9%)2214(Top 14%)2214(Top 39%)
Finish26.22 mi1.02 mi3102+1332923+1222923+1221472(Top 5%)1370(Top 9%)1370(Top 24%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 10%
×21stories
+97ft-345ft

Overall

2971

Males

2830

M18-39

2830

5K→10K

3.1 - 6.2 mi

Top 10%
×5stories
+79ft-138ft

Overall

2931

Males

2790

M18-39

2790

10K→15K

6.2 - 9.3 mi

Top 10%
×3stories
+67ft-78ft

Overall

2971

Males

2830

M18-39

2830

15K→20K

9.3 - 12.4 mi

Top 12%
×5stories
+106ft-86ft

Overall

3304

Males

3129

M18-39

3129

20K→Half

12.4 - 13.1 mi

Top 11%
×2stories
+19ft-37ft

Overall

3189

Males

3030

M18-39

3030

Half→25K

13.1 - 15.5 mi

Top 14%
×4stories
+66ft-88ft

Overall

4068

Males

3790

M18-39

3790

25K→30K

15.5 - 18.6 mi

Top 15%
×9stories
+181ft-148ft

Overall

4154

Males

3817

M18-39

3817

30K→20M

18.6 - 20.0 mi

Top 16%
×5stories
+64ft-50ft

Overall

4511

Males

4095

M18-39

4095

20M→21M

20.0 - 21.0 mi

Top 17%
×8stories
+106ft-24ft

Overall

4743

Males

4177

M18-39

4177

21M→35K

21.0 - 21.8 mi

Top 17%
×7stories
+17ft-86ft

Overall

4716

Males

4159

M18-39

4159

35K→23M

21.8 - 23.0 mi

Top 15%
×5stories
+23ft-63ft

Overall

4206

Males

3735

M18-39

3735

23M→24M

23.0 - 24.0 mi

Top 11%
×6stories
+12ft-82ft

Overall

3041

Males

2754

M18-39

2754

24M→40K

24.0 - 24.9 mi

Top 10%
×1story
+6ft-20ft

Overall

2746

Males

2490

M18-39

2490

40K→25.2M

24.9 - 25.2 mi

Top 9%
×1story
+13ft-16ft

Overall

2480

Males

2214

M18-39

2214

25.2M→Finish

25.2 - 26.2 mi

Top 5%
×2stories
+22ft-21ft

Overall

1472

Males

1370

M18-39

1370

Passing Analysis

Category:
Athletes Passed
857
Passed By
1120
Net Change
-263
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2839
5K → 10K125143-18#2839#2857
10K → 15K6897-29#2857#2886
15K → 20K47152-105#2886#2991
20K → Half1217-5#2991#2996
Half → 25K32188-156#2996#3152
25K → 30K78186-108#3152#3260
30K → 20M4794-47#3260#3307
20M → 21M2997-68#3307#3375
21M → 35K2848-20#3375#3395
35K → 23M6351+12#3395#3383
23M → 24M7923+56#3383#3327
24M → 40K6715+52#3327#3275
40K → 25.2M444+40#3275#3235
25.2M → Finish1385+133#3235#3102
TOTALS8571120-263
📊

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