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BOSTON MARATHON 2025

David Kuhns

Bib: 8516•M

OR

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 29%
Gender (Male)
#0 / 16105
Top 42%
Masters (Masters Men)
#0 / 10463
Top 30%
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
21:51
Rank: #8070
Start → 5K
21:51 | 7:02/mi
10K· 6.21 mi
43:42
Rank: #8109 (-39)
5K → 10K
21:51 | 7:02/mi
15K· 9.32 mi
1:06:00
Rank: #8339 (-230)
10K → 15K
22:18 | 7:11/mi
20K· 12.43 mi
1:28:35
Rank: #8362 (-23)
15K → 20K
22:35 | 7:16/mi
Half· 13.11 mi
1:33:26
Rank: #8358 (+4)
20K → Half
4:51 | 7:07/mi
25K· 15.53 mi
1:51:23
Rank: #8424 (-66)
Half → 25K
17:57 | 7:24/mi
30K· 18.64 mi
2:15:31
Rank: #8587 (-163)
25K → 30K
24:08 | 7:46/mi
20M
2:26:20
Rank: #8667 (-80)
30K → 20M
10:49 | 7:58/mi
21M
2:34:42
Rank: #8695 (-28)
20M → 21M
8:22 | 8:22/mi
35K· 21.75 mi
2:40:20
Rank: #8670 (+25)
21M → 35K
5:38 | 7:32/mi
23M
2:49:58
Rank: #8527 (+143)
35K → 23M
9:38 | 7:42/mi
24M
2:57:33
Rank: #8498 (+29)
23M → 24M
7:35 | 7:35/mi
40K· 24.85 mi
3:04:07
Rank: #8430 (+68)
24M → 40K
6:34 | 7:41/mi
25.2M
3:06:58
Rank: #8386 (+44)
40K → 25.2M
2:51 | 8:16/mi
Finish· 26.22 mi
3:14:16
Rank: #8309 (+77)
25.2M → Finish
7:18 | 7:10/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:33:26
Pace7:08 /mi
2nd Half
Distance13.11 mi
Time1:40:50
Pace7:42 /mi
📊Positive Split: 7.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:47:5121:517:0221:51
7:02
-
10K
6.21 mi11:09:4243:427:0221:51
7:02
0:00
15K
9.32 mi11:32:001:06:007:0522:18
7:11
+0:09
20K
12.43 mi11:54:351:28:357:0822:35
7:16
+0:05
Half
13.11 mi11:59:261:33:267:084:51
7:07
-0:09
25K
15.53 mi12:17:231:51:237:1017:57
7:24
+0:17
30K
18.64 mi12:41:312:15:317:1624:08
7:46
+0:22
20M
20.00 mi12:52:202:26:207:1910:49
7:58
+0:12
21M
21.00 mi13:00:422:34:427:228:22
8:22
+0:24
35K
21.75 mi13:06:202:40:207:225:38
7:32
-0:50
23M
23.00 mi13:15:582:49:587:239:38
7:42
+0:10
24M
24.00 mi13:23:332:57:337:247:35
7:35
-0:07
40K
24.85 mi13:30:073:04:077:246:34
7:41
+0:06
25.2M
25.20 mi13:32:583:06:587:252:51
8:16
+0:35
Finish
26.22 mi13:40:163:14:167:257:18
7:10
-1:06

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

7:02 /mi

Average Pace

7:25 /mi

Slowest Pace

8:22 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:28:06

76% of race

Time at Steady Pace

37:48

19% of race

Time at Slower Pace

8:22

4% of race

Average Pace: 7:25 /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 mi10:47:5121:517:0221:51
7:02
#8070
10K
6.21 mi11:09:4243:427:0221:51
7:02
#8109
15K
9.32 mi11:32:001:06:007:0522:18
7:11
#8339
20K
12.43 mi11:54:351:28:357:0822:35
7:16
#8362
Half
13.11 mi11:59:261:33:267:084:51
7:07
#8358
25K
15.53 mi12:17:231:51:237:1017:57
7:24
#8424
30K
18.64 mi12:41:312:15:317:1624:08
7:46
#8587
20M
20.00 mi12:52:202:26:207:1910:49
7:58
#8667
21M
21.00 mi13:00:422:34:427:228:22
8:22
#8695
35K
21.75 mi13:06:202:40:207:225:38
7:32
#8670
23M
23.00 mi13:15:582:49:587:239:38
7:42
#8527
24M
24.00 mi13:23:332:57:337:247:35
7:35
#8498
40K
24.85 mi13:30:073:04:077:246:34
7:41
#8430
25.2M
25.20 mi13:32:583:06:587:252:51
8:16
#8386
Finish
26.22 mi13:40:163:14:167:257:18
7:10
#8309
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi8070704670468931(Top 31%)7508(Top 47%)7508(Top 334%)
10K6.21 mi3.10 mi8109-397054-87054-88159(Top 29%)7072(Top 44%)7072(Top 315%)
15K9.32 mi3.11 mi8339-2307183-1297183-1298931(Top 31%)7508(Top 47%)7508(Top 334%)
20K12.43 mi3.11 mi8362-237171+127171+128765(Top 31%)7313(Top 45%)7313(Top 325%)
Half13.11 mi0.68 mi8358+47167+47167+48325(Top 29%)7094(Top 44%)7094(Top 316%)
25K15.53 mi2.42 mi8424-667192-257192-259171(Top 32%)7427(Top 46%)7427(Top 331%)
30K18.64 mi3.11 mi8587-1637231-397231-399661(Top 34%)7507(Top 47%)7507(Top 334%)
20M20.00 mi1.36 mi8667-807239-87239-810140(Top 36%)7609(Top 47%)7609(Top 339%)
21M21.00 mi1.00 mi8695-287223+167223+169604(Top 34%)7147(Top 44%)7147(Top 318%)
35K21.75 mi0.75 mi8670+257190+337190+338805(Top 31%)6736(Top 42%)6736(Top 300%)
23M23.00 mi1.25 mi8527+1437061+1297061+1297856(Top 28%)6078(Top 38%)6078(Top 270%)
24M24.00 mi1.00 mi8498+297010+517010+518270(Top 29%)6260(Top 39%)6260(Top 279%)
40K24.85 mi0.85 mi8430+686938+726938+727937(Top 28%)5957(Top 37%)5957(Top 265%)
25.2M25.20 mi0.35 mi8386+446891+476891+477419(Top 26%)5584(Top 35%)5584(Top 249%)
Finish26.22 mi1.02 mi8309+776812+796812+796805(Top 24%)5215(Top 32%)5215(Top 232%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 31%
×21stories
+97ft-345ft

Overall

8931

Males

7508

M40-44

7508

5K→10K

3.1 - 6.2 mi

Top 29%
×5stories
+79ft-138ft

Overall

8159

Males

7072

M40-44

7072

10K→15K

6.2 - 9.3 mi

Top 31%
×3stories
+67ft-78ft

Overall

8931

Males

7508

M40-44

7508

15K→20K

9.3 - 12.4 mi

Top 31%
×5stories
+106ft-86ft

Overall

8765

Males

7313

M40-44

7313

20K→Half

12.4 - 13.1 mi

Top 29%
×2stories
+19ft-37ft

Overall

8325

Males

7094

M40-44

7094

Half→25K

13.1 - 15.5 mi

Top 32%
×4stories
+66ft-88ft

Overall

9171

Males

7427

M40-44

7427

25K→30K

15.5 - 18.6 mi

Top 34%
×9stories
+181ft-148ft

Overall

9661

Males

7507

M40-44

7507

30K→20M

18.6 - 20.0 mi

Top 36%
×5stories
+64ft-50ft

Overall

10140

Males

7609

M40-44

7609

20M→21M

20.0 - 21.0 mi

Top 34%
×8stories
+106ft-24ft

Overall

9604

Males

7147

M40-44

7147

21M→35K

21.0 - 21.8 mi

Top 31%
×7stories
+17ft-86ft

Overall

8805

Males

6736

M40-44

6736

35K→23M

21.8 - 23.0 mi

Top 28%
×5stories
+23ft-63ft

Overall

7856

Males

6078

M40-44

6078

23M→24M

23.0 - 24.0 mi

Top 29%
×6stories
+12ft-82ft

Overall

8270

Males

6260

M40-44

6260

24M→40K

24.0 - 24.9 mi

Top 28%
×1story
+6ft-20ft

Overall

7937

Males

5957

M40-44

5957

40K→25.2M

24.9 - 25.2 mi

Top 26%
×1story
+13ft-16ft

Overall

7419

Males

5584

M40-44

5584

25.2M→Finish

25.2 - 26.2 mi

Top 24%
×2stories
+22ft-21ft

Overall

6805

Males

5215

M40-44

5215

Passing Analysis

Category:
Athletes Passed
1508
Passed By
1747
Net Change
-239
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8070
5K → 10K195234-39#8070#8109
10K → 15K70300-230#8109#8339
15K → 20K163186-23#8339#8362
20K → Half2521+4#8362#8358
Half → 25K112178-66#8358#8424
25K → 30K156319-163#8424#8587
30K → 20M71151-80#8587#8667
20M → 21M87115-28#8667#8695
21M → 35K7045+25#8695#8670
35K → 23M18744+143#8670#8527
23M → 24M9162+29#8527#8498
24M → 40K11042+68#8498#8430
40K → 25.2M5915+44#8430#8386
25.2M → Finish11235+77#8386#8309
TOTALS15081747-239
📊

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