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BOSTON MARATHON 2025

Cory Kirkham

Bib: 4011•M

IN

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 10%
Gender (Male)
#0 / 16105
Top 16%
Division (M18-39)
#0 / 5642
Top 36%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:55
Rank: #3207
Start → 5K
19:55 | 6:25/mi
10K· 6.21 mi
40:00
Rank: #3323 (-116)
5K → 10K
20:05 | 6:28/mi
15K· 9.32 mi
59:59
Rank: #3238 (+85)
10K → 15K
19:59 | 6:26/mi
20K· 12.43 mi
1:20:40
Rank: #3433 (-195)
15K → 20K
20:41 | 6:39/mi
Half· 13.11 mi
1:25:00
Rank: #3401 (+32)
20K → Half
4:20 | 6:21/mi
25K· 15.53 mi
1:40:38
Rank: #3245 (+156)
Half → 25K
15:38 | 6:27/mi
30K· 18.64 mi
2:01:11
Rank: #3051 (+194)
25K → 30K
20:33 | 6:37/mi
20M
2:10:17
Rank: #2957 (+94)
30K → 20M
9:06 | 6:42/mi
21M
2:17:15
Rank: #2884 (+73)
20M → 21M
6:58 | 6:58/mi
35K· 21.75 mi
2:22:14
Rank: #2859 (+25)
21M → 35K
4:59 | 6:40/mi
23M
2:30:43
Rank: #2800 (+59)
35K → 23M
8:29 | 6:47/mi
24M
2:37:28
Rank: #2778 (+22)
23M → 24M
6:45 | 6:45/mi
40K· 24.85 mi
2:43:18
Rank: #2755 (+23)
24M → 40K
5:50 | 6:49/mi
25.2M
2:45:50
Rank: #2734 (+21)
40K → 25.2M
2:32 | 7:21/mi
Finish· 26.22 mi
2:52:28
Rank: #2712 (+22)
25.2M → Finish
6:38 | 6:31/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:25:00
Pace6:29 /mi
2nd Half
Distance13.11 mi
Time1:27:28
Pace6:40 /mi
📊Positive Split: 2.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:2819:556:2519:55
6:25
-
10K
6.21 mi10:42:3340:006:2620:05
6:28
+0:03
15K
9.32 mi11:02:3259:596:2619:59
6:26
-0:02
20K
12.43 mi11:23:131:20:406:2920:41
6:39
+0:13
Half
13.11 mi11:27:331:25:006:294:20
6:21
-0:18
25K
15.53 mi11:43:111:40:386:2915:38
6:27
+0:06
30K
18.64 mi12:03:442:01:116:3020:33
6:37
+0:10
20M
20.00 mi12:12:502:10:176:319:06
6:42
+0:05
21M
21.00 mi12:19:482:17:156:326:58
6:58
+0:16
35K
21.75 mi12:24:472:22:146:324:59
6:40
-0:18
23M
23.00 mi12:33:162:30:436:338:29
6:47
+0:07
24M
24.00 mi12:40:012:37:286:346:45
6:45
-0:02
40K
24.85 mi12:45:512:43:186:345:50
6:49
+0:04
25.2M
25.20 mi12:48:232:45:506:352:32
7:21
+0:32
Finish
26.22 mi12:55:012:52:286:356:38
6:31
-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

6:21 /mi

Average Pace

6:35 /mi

Slowest Pace

7:21 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:49:56

99% of race

Time at Steady Pace

2:32

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:35 /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 mi10:22:2819:556:2519:55
6:25
#3207
10K
6.21 mi10:42:3340:006:2620:05
6:28
#3323
15K
9.32 mi11:02:3259:596:2619:59
6:26
#3238
20K
12.43 mi11:23:131:20:406:2920:41
6:39
#3433
Half
13.11 mi11:27:331:25:006:294:20
6:21
#3401
25K
15.53 mi11:43:111:40:386:2915:38
6:27
#3245
30K
18.64 mi12:03:442:01:116:3020:33
6:37
#3051
20M
20.00 mi12:12:502:10:176:319:06
6:42
#2957
21M
21.00 mi12:19:482:17:156:326:58
6:58
#2884
35K
21.75 mi12:24:472:22:146:324:59
6:40
#2859
23M
23.00 mi12:33:162:30:436:338:29
6:47
#2800
24M
24.00 mi12:40:012:37:286:346:45
6:45
#2778
40K
24.85 mi12:45:512:43:186:345:50
6:49
#2755
25.2M
25.20 mi12:48:232:45:506:352:32
7:21
#2734
Finish
26.22 mi12:55:012:52:286:356:38
6:31
#2712
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi3207304730473139(Top 11%)2988(Top 19%)2988(Top 53%)
10K6.21 mi3.10 mi3323-1163157-1103157-1103483(Top 12%)3302(Top 21%)3302(Top 59%)
15K9.32 mi3.11 mi3238+853078+793078+793139(Top 11%)2988(Top 19%)2988(Top 53%)
20K12.43 mi3.11 mi3433-1953255-1773255-1774073(Top 14%)3823(Top 24%)3823(Top 68%)
Half13.11 mi0.68 mi3401+323228+273228+272838(Top 10%)2714(Top 17%)2714(Top 48%)
25K15.53 mi2.42 mi3245+1563090+1383090+1382622(Top 9%)2496(Top 15%)2496(Top 44%)
30K18.64 mi3.11 mi3051+1942904+1862904+1862483(Top 9%)2351(Top 15%)2351(Top 42%)
20M20.00 mi1.36 mi2957+942813+912813+912467(Top 9%)2328(Top 14%)2328(Top 41%)
21M21.00 mi1.00 mi2884+732743+702743+702150(Top 8%)2015(Top 13%)2015(Top 36%)
35K21.75 mi0.75 mi2859+252714+292714+293304(Top 12%)3020(Top 19%)3020(Top 54%)
23M23.00 mi1.25 mi2800+592656+582656+582597(Top 9%)2400(Top 15%)2400(Top 43%)
24M24.00 mi1.00 mi2778+222635+212635+213244(Top 11%)2924(Top 18%)2924(Top 52%)
40K24.85 mi0.85 mi2755+232610+252610+252975(Top 10%)2684(Top 17%)2684(Top 48%)
25.2M25.20 mi0.35 mi2734+212589+212589+212777(Top 10%)2479(Top 15%)2479(Top 44%)
Finish26.22 mi1.02 mi2712+222566+232566+232879(Top 10%)2574(Top 16%)2574(Top 46%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 11%
×21stories
+97ft-345ft

Overall

3139

Males

2988

M18-39

2988

5K→10K

3.1 - 6.2 mi

Top 12%
×5stories
+79ft-138ft

Overall

3483

Males

3302

M18-39

3302

10K→15K

6.2 - 9.3 mi

Top 11%
×3stories
+67ft-78ft

Overall

3139

Males

2988

M18-39

2988

15K→20K

9.3 - 12.4 mi

Top 14%
×5stories
+106ft-86ft

Overall

4073

Males

3823

M18-39

3823

20K→Half

12.4 - 13.1 mi

Top 10%
×2stories
+19ft-37ft

Overall

2838

Males

2714

M18-39

2714

Half→25K

13.1 - 15.5 mi

Top 9%
×4stories
+66ft-88ft

Overall

2622

Males

2496

M18-39

2496

25K→30K

15.5 - 18.6 mi

Top 9%
×9stories
+181ft-148ft

Overall

2483

Males

2351

M18-39

2351

30K→20M

18.6 - 20.0 mi

Top 9%
×5stories
+64ft-50ft

Overall

2467

Males

2328

M18-39

2328

20M→21M

20.0 - 21.0 mi

Top 8%
×8stories
+106ft-24ft

Overall

2150

Males

2015

M18-39

2015

21M→35K

21.0 - 21.8 mi

Top 12%
×7stories
+17ft-86ft

Overall

3304

Males

3020

M18-39

3020

35K→23M

21.8 - 23.0 mi

Top 9%
×5stories
+23ft-63ft

Overall

2597

Males

2400

M18-39

2400

23M→24M

23.0 - 24.0 mi

Top 11%
×6stories
+12ft-82ft

Overall

3244

Males

2924

M18-39

2924

24M→40K

24.0 - 24.9 mi

Top 10%
×1story
+6ft-20ft

Overall

2975

Males

2684

M18-39

2684

40K→25.2M

24.9 - 25.2 mi

Top 10%
×1story
+13ft-16ft

Overall

2777

Males

2479

M18-39

2479

25.2M→Finish

25.2 - 26.2 mi

Top 10%
×2stories
+22ft-21ft

Overall

2879

Males

2574

M18-39

2574

Passing Analysis

Category:
Athletes Passed
1173
Passed By
678
Net Change
+495
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3207
5K → 10K89205-116#3207#3323
10K → 15K13449+85#3323#3238
15K → 20K45240-195#3238#3433
20K → Half364+32#3433#3401
Half → 25K1659+156#3401#3245
25K → 30K22632+194#3245#3051
30K → 20M1006+94#3051#2957
20M → 21M8916+73#2957#2884
21M → 35K4520+25#2884#2859
35K → 23M7415+59#2859#2800
23M → 24M5129+22#2800#2778
24M → 40K4724+23#2778#2755
40K → 25.2M265+21#2755#2734
25.2M → Finish4624+22#2734#2712
TOTALS1173678+495
📊

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