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BOSTON MARATHON 2025

Joshua Knepley

Bib: 3118•M

VA

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

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:14
Rank: #3941
Start → 5K
20:14 | 6:31/mi
10K· 6.21 mi
40:37
Rank: #4044 (-103)
5K → 10K
20:23 | 6:34/mi
15K· 9.32 mi
1:02:01
Rank: #4834 (-790)
10K → 15K
21:24 | 6:53/mi
20K· 12.43 mi
1:24:47
Rank: #6139 (-1305)
15K → 20K
22:46 | 7:20/mi
Half· 13.11 mi
1:29:49
Rank: #6429 (-290)
20K → Half
5:02 | 7:23/mi
25K· 15.53 mi
1:54:42
Rank: #10302 (-3873)
Half → 25K
24:53 | 10:16/mi
30K· 18.64 mi
2:22:40
Rank: #11840 (-1538)
25K → 30K
27:58 | 9:00/mi
20M
2:35:56
Rank: #12696 (-856)
30K → 20M
13:16 | 9:46/mi
21M
2:45:45
Rank: #13028 (-332)
20M → 21M
9:49 | 9:49/mi
35K· 21.75 mi
2:52:47
Rank: #13371 (-343)
21M → 35K
7:02 | 9:24/mi
23M
3:05:00
Rank: #13865 (-494)
35K → 23M
12:13 | 9:45/mi
24M
3:14:11
Rank: #14136 (-271)
23M → 24M
9:11 | 9:11/mi
40K· 24.85 mi
3:21:58
Rank: #14233 (-97)
24M → 40K
7:47 | 9:06/mi
25.2M
3:25:33
Rank: #14302 (-69)
40K → 25.2M
3:35 | 10:23/mi
Finish· 26.22 mi
3:34:02
Rank: #14300 (+2)
25.2M → Finish
8:29 | 8:19/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:29:49
Pace6:51 /mi
2nd Half
Distance13.11 mi
Time2:04:13
Pace9:29 /mi
📊Positive Split: 38.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:4120:146:3120:14
6:31
-
10K
6.21 mi10:43:0440:376:3220:23
6:34
+0:03
15K
9.32 mi11:04:281:02:016:3921:24
6:53
+0:19
20K
12.43 mi11:27:141:24:476:4922:46
7:20
+0:27
Half
13.11 mi11:32:161:29:496:515:02
7:23
+0:03
25K
15.53 mi11:57:091:54:427:2324:53
10:16
+2:53
30K
18.64 mi12:25:072:22:407:3927:58
9:00
-1:16
20M
20.00 mi12:38:232:35:567:4813:16
9:46
+0:46
21M
21.00 mi12:48:122:45:457:549:49
9:49
+0:03
35K
21.75 mi12:55:142:52:477:577:02
9:24
-0:25
23M
23.00 mi13:07:273:05:008:0312:13
9:45
+0:21
24M
24.00 mi13:16:383:14:118:059:11
9:11
-0:34
40K
24.85 mi13:24:253:21:588:087:47
9:06
-0:05
25.2M
25.20 mi13:28:003:25:338:093:35
10:23
+1:17
Finish
26.22 mi13:36:293:34:028:108:29
8:19
-2:04

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

6:31 /mi

Average Pace

8:10 /mi

Slowest Pace

10:23 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:38:18

46% of race

Time at Steady Pace

1:04:11

30% of race

Time at Slower Pace

51:33

24% of race

Average Pace: 8:10 /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 mi10:22:4120:146:3120:14
6:31
#3941
10K
6.21 mi10:43:0440:376:3220:23
6:34
#4044
15K
9.32 mi11:04:281:02:016:3921:24
6:53
#4834
20K
12.43 mi11:27:141:24:476:4922:46
7:20
#6139
Half
13.11 mi11:32:161:29:496:515:02
7:23
#6429
25K
15.53 mi11:57:091:54:427:2324:53
10:16
#10302
30K
18.64 mi12:25:072:22:407:3927:58
9:00
#11840
20M
20.00 mi12:38:232:35:567:4813:16
9:46
#12696
21M
21.00 mi12:48:122:45:457:549:49
9:49
#13028
35K
21.75 mi12:55:142:52:477:577:02
9:24
#13371
23M
23.00 mi13:07:273:05:008:0312:13
9:45
#13865
24M
24.00 mi13:16:383:14:118:059:11
9:11
#14136
40K
24.85 mi13:24:253:21:588:087:47
9:06
#14233
25.2M
25.20 mi13:28:003:25:338:093:35
10:23
#14302
Finish
26.22 mi13:36:293:34:028:108:29
8:19
#14300
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi3941373137316870(Top 24%)6158(Top 38%)6158(Top 109%)
10K6.21 mi3.10 mi4044-1033818-873818-874167(Top 15%)3920(Top 24%)3920(Top 69%)
15K9.32 mi3.11 mi4834-7904516-6984516-6986870(Top 24%)6158(Top 38%)6158(Top 109%)
20K12.43 mi3.11 mi6139-13055599-10835599-10839272(Top 33%)7612(Top 47%)7612(Top 135%)
Half13.11 mi0.68 mi6429-2905823-2245823-22410679(Top 38%)8401(Top 52%)8401(Top 149%)
25K15.53 mi2.42 mi10302-38738230-24078230-240723858(Top 84%)14128(Top 88%)14128(Top 250%)
30K18.64 mi3.11 mi11840-15388893-6638893-66317690(Top 62%)11228(Top 70%)11228(Top 199%)
20M20.00 mi1.36 mi12696-8569255-3629255-36220149(Top 71%)12208(Top 76%)12208(Top 216%)
21M21.00 mi1.00 mi13028-3329369-1149369-11417523(Top 62%)10927(Top 68%)10927(Top 194%)
35K21.75 mi0.75 mi13371-3439495-1269495-12619918(Top 70%)11923(Top 74%)11923(Top 211%)
23M23.00 mi1.25 mi13865-4949676-1819676-18119634(Top 69%)11727(Top 73%)11727(Top 208%)
24M24.00 mi1.00 mi14136-2719767-919767-9118247(Top 64%)11029(Top 68%)11029(Top 195%)
40K24.85 mi0.85 mi14233-979788-219788-2116853(Top 59%)10299(Top 64%)10299(Top 183%)
25.2M25.20 mi0.35 mi14302-699809-219809-2118553(Top 65%)11085(Top 69%)11085(Top 196%)
Finish26.22 mi1.02 mi14300+29780+299780+2915048(Top 53%)9498(Top 59%)9498(Top 168%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 24%
×21stories
+97ft-345ft

Overall

6870

Males

6158

M18-39

6158

5K→10K

3.1 - 6.2 mi

Top 15%
×5stories
+79ft-138ft

Overall

4167

Males

3920

M18-39

3920

10K→15K

6.2 - 9.3 mi

Top 24%
×3stories
+67ft-78ft

Overall

6870

Males

6158

M18-39

6158

15K→20K

9.3 - 12.4 mi

Top 33%
×5stories
+106ft-86ft

Overall

9272

Males

7612

M18-39

7612

20K→Half

12.4 - 13.1 mi

Top 38%
×2stories
+19ft-37ft

Overall

10679

Males

8401

M18-39

8401

Half→25K

13.1 - 15.5 mi

Top 84%
×4stories
+66ft-88ft

Overall

23858

Males

14128

M18-39

14128

25K→30K

15.5 - 18.6 mi

Top 62%
×9stories
+181ft-148ft

Overall

17690

Males

11228

M18-39

11228

30K→20M

18.6 - 20.0 mi

Top 71%
×5stories
+64ft-50ft

Overall

20149

Males

12208

M18-39

12208

20M→21M

20.0 - 21.0 mi

Top 62%
×8stories
+106ft-24ft

Overall

17523

Males

10927

M18-39

10927

21M→35K

21.0 - 21.8 mi

Top 70%
×7stories
+17ft-86ft

Overall

19918

Males

11923

M18-39

11923

35K→23M

21.8 - 23.0 mi

Top 69%
×5stories
+23ft-63ft

Overall

19634

Males

11727

M18-39

11727

23M→24M

23.0 - 24.0 mi

Top 64%
×6stories
+12ft-82ft

Overall

18247

Males

11029

M18-39

11029

24M→40K

24.0 - 24.9 mi

Top 59%
×1story
+6ft-20ft

Overall

16853

Males

10299

M18-39

10299

40K→25.2M

24.9 - 25.2 mi

Top 65%
×1story
+13ft-16ft

Overall

18553

Males

11085

M18-39

11085

25.2M→Finish

25.2 - 26.2 mi

Top 53%
×2stories
+22ft-21ft

Overall

15048

Males

9498

M18-39

9498

Passing Analysis

Category:
Athletes Passed
427
Passed By
10783
Net Change
-10359
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3941
5K → 10K112215-103#3941#4044
10K → 15K11801-790#4044#4834
15K → 20K91314-1305#4834#6139
20K → Half0290-290#6139#6429
Half → 25K13872-3873#6429#10302
25K → 30K321569-1538#10302#11840
30K → 20M18874-856#11840#12696
20M → 21M42374-332#12696#13028
21M → 35K7350-343#13028#13371
35K → 23M31525-494#13371#13865
23M → 24M29300-271#13865#14136
24M → 40K45142-97#14136#14233
40K → 25.2M1685-69#14233#14302
25.2M → Finish7472+2#14302#14300
TOTALS42710783-10359
📊

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