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BOSTON MARATHON 2025

John Pepelnjak

Bib: 3785•M

TX

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0:00
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Overall
#0 / 28404
Top 6%
Gender (Male)
#0 / 16105
Top 11%
Division (M18-39)
#0 / 5642
Top 26%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:05
Rank: #3573
Start → 5K
20:05 | 6:28/mi
10K· 6.21 mi
39:34
Rank: #2833 (+740)
5K → 10K
19:29 | 6:16/mi
15K· 9.32 mi
58:45
Rank: #2399 (+434)
10K → 15K
19:11 | 6:10/mi
20K· 12.43 mi
1:18:36
Rank: #2395 (+4)
15K → 20K
19:51 | 6:23/mi
Half· 13.11 mi
1:22:52
Rank: #2383 (+12)
20K → Half
4:16 | 6:15/mi
25K· 15.53 mi
1:38:08
Rank: #2276 (+107)
Half → 25K
15:16 | 6:18/mi
30K· 18.64 mi
1:58:33
Rank: #2235 (+41)
25K → 30K
20:25 | 6:34/mi
20M
2:07:36
Rank: #2222 (+13)
30K → 20M
9:03 | 6:40/mi
21M
2:14:49
Rank: #2242 (-20)
20M → 21M
7:13 | 7:13/mi
35K· 21.75 mi
2:19:33
Rank: #2210 (+32)
21M → 35K
4:44 | 6:20/mi
23M
2:27:31
Rank: #2088 (+122)
35K → 23M
7:58 | 6:22/mi
24M
2:33:38
Rank: #1976 (+112)
23M → 24M
6:07 | 6:07/mi
40K· 24.85 mi
2:38:51
Rank: #1871 (+105)
24M → 40K
5:13 | 6:06/mi
25.2M
2:41:23
Rank: #1879 (-8)
40K → 25.2M
2:32 | 7:21/mi
Finish· 26.22 mi
2:47:46
Rank: #1837 (+42)
25.2M → Finish
6:23 | 6:16/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:22:52
Pace6:19 /mi
2nd Half
Distance13.11 mi
Time1:24:54
Pace6:29 /mi
📊Positive Split: 2.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:24:0620:056:2820:05
6:28
-
10K
6.21 mi10:43:3539:346:2219:29
6:16
-0:12
15K
9.32 mi11:02:4658:456:1819:11
6:10
-0:06
20K
12.43 mi11:22:371:18:366:1919:51
6:23
+0:13
Half
13.11 mi11:26:531:22:526:194:16
6:15
-0:08
25K
15.53 mi11:42:091:38:086:1915:16
6:18
+0:03
30K
18.64 mi12:02:341:58:336:2220:25
6:34
+0:16
20M
20.00 mi12:11:372:07:366:239:03
6:40
+0:06
21M
21.00 mi12:18:502:14:496:257:13
7:13
+0:33
35K
21.75 mi12:23:342:19:336:254:44
6:20
-0:53
23M
23.00 mi12:31:322:27:316:257:58
6:22
+0:02
24M
24.00 mi12:37:392:33:386:246:07
6:07
-0:15
40K
24.85 mi12:42:522:38:516:235:13
6:06
-0:01
25.2M
25.20 mi12:45:242:41:236:242:32
7:21
+1:15
Finish
26.22 mi12:51:472:47:466:246:23
6:16
-1:05

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

6:06 /mi

Average Pace

6:24 /mi

Slowest Pace

7:21 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

11:20

7% of race

Time at Steady Pace

1:57:13

70% of race

Time at Slower Pace

39:13

23% of race

Average Pace: 6:24 /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 mi10:24:0620:056:2820:05
6:28
#3573
10K
6.21 mi10:43:3539:346:2219:29
6:16
#2833
15K
9.32 mi11:02:4658:456:1819:11
6:10
#2399
20K
12.43 mi11:22:371:18:366:1919:51
6:23
#2395
Half
13.11 mi11:26:531:22:526:194:16
6:15
#2383
25K
15.53 mi11:42:091:38:086:1915:16
6:18
#2276
30K
18.64 mi12:02:341:58:336:2220:25
6:34
#2235
20M
20.00 mi12:11:372:07:366:239:03
6:40
#2222
21M
21.00 mi12:18:502:14:496:257:13
7:13
#2242
35K
21.75 mi12:23:342:19:336:254:44
6:20
#2210
23M
23.00 mi12:31:322:27:316:257:58
6:22
#2088
24M
24.00 mi12:37:392:33:386:246:07
6:07
#1976
40K
24.85 mi12:42:522:38:516:235:13
6:06
#1871
25.2M
25.20 mi12:45:242:41:236:242:32
7:21
#1879
Finish
26.22 mi12:51:472:47:466:246:23
6:16
#1837
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi3573339433941731(Top 6%)1644(Top 10%)1644(Top 29%)
10K6.21 mi3.10 mi2833+7402700+6942700+6942244(Top 8%)2145(Top 13%)2145(Top 38%)
15K9.32 mi3.11 mi2399+4342292+4082292+4081731(Top 6%)1644(Top 10%)1644(Top 29%)
20K12.43 mi3.11 mi2395+42285+72285+72472(Top 9%)2357(Top 15%)2357(Top 42%)
Half13.11 mi0.68 mi2383+122273+122273+122277(Top 8%)2178(Top 14%)2178(Top 39%)
25K15.53 mi2.42 mi2276+1072173+1002173+1001851(Top 7%)1759(Top 11%)1759(Top 31%)
30K18.64 mi3.11 mi2235+412130+432130+432289(Top 8%)2168(Top 13%)2168(Top 38%)
20M20.00 mi1.36 mi2222+132119+112119+112287(Top 8%)2161(Top 13%)2161(Top 38%)
21M21.00 mi1.00 mi2242-202140-212140-213217(Top 11%)2965(Top 18%)2965(Top 53%)
35K21.75 mi0.75 mi2210+322109+312109+311747(Top 6%)1641(Top 10%)1641(Top 29%)
23M23.00 mi1.25 mi2088+1221986+1231986+1231054(Top 4%)997(Top 6%)997(Top 18%)
24M24.00 mi1.00 mi1976+1121875+1111875+111822(Top 3%)774(Top 5%)774(Top 14%)
40K24.85 mi0.85 mi1871+1051773+1021773+102557(Top 2%)520(Top 3%)520(Top 9%)
25.2M25.20 mi0.35 mi1879-81780-71780-72760(Top 10%)2462(Top 15%)2462(Top 44%)
Finish26.22 mi1.02 mi1837+421739+411739+411766(Top 6%)1636(Top 10%)1636(Top 29%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 6%
×21stories
+97ft-345ft

Overall

1731

Males

1644

M18-39

1644

5K→10K

3.1 - 6.2 mi

Top 8%
×5stories
+79ft-138ft

Overall

2244

Males

2145

M18-39

2145

10K→15K

6.2 - 9.3 mi

Top 6%
×3stories
+67ft-78ft

Overall

1731

Males

1644

M18-39

1644

15K→20K

9.3 - 12.4 mi

Top 9%
×5stories
+106ft-86ft

Overall

2472

Males

2357

M18-39

2357

20K→Half

12.4 - 13.1 mi

Top 8%
×2stories
+19ft-37ft

Overall

2277

Males

2178

M18-39

2178

Half→25K

13.1 - 15.5 mi

Top 7%
×4stories
+66ft-88ft

Overall

1851

Males

1759

M18-39

1759

25K→30K

15.5 - 18.6 mi

Top 8%
×9stories
+181ft-148ft

Overall

2289

Males

2168

M18-39

2168

30K→20M

18.6 - 20.0 mi

Top 8%
×5stories
+64ft-50ft

Overall

2287

Males

2161

M18-39

2161

20M→21M

20.0 - 21.0 mi

Top 11%
×8stories
+106ft-24ft

Overall

3217

Males

2965

M18-39

2965

21M→35K

21.0 - 21.8 mi

Top 6%
×7stories
+17ft-86ft

Overall

1747

Males

1641

M18-39

1641

35K→23M

21.8 - 23.0 mi

Top 4%
×5stories
+23ft-63ft

Overall

1054

Males

997

M18-39

997

23M→24M

23.0 - 24.0 mi

Top 3%
×6stories
+12ft-82ft

Overall

822

Males

774

M18-39

774

24M→40K

24.0 - 24.9 mi

Top 2%
×1story
+6ft-20ft

Overall

557

Males

520

M18-39

520

40K→25.2M

24.9 - 25.2 mi

Top 10%
×1story
+13ft-16ft

Overall

2760

Males

2462

M18-39

2462

25.2M→Finish

25.2 - 26.2 mi

Top 6%
×2stories
+22ft-21ft

Overall

1766

Males

1636

M18-39

1636

Passing Analysis

Category:
Athletes Passed
2011
Passed By
275
Net Change
+1736
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3573
5K → 10K7444+740#3573#2833
10K → 15K4340+434#2833#2399
15K → 20K7470+4#2399#2395
20K → Half2210+12#2395#2383
Half → 25K1158+107#2383#2276
25K → 30K10766+41#2276#2235
30K → 20M4431+13#2235#2222
20M → 21M3555-20#2222#2242
21M → 35K353+32#2242#2210
35K → 23M1231+122#2210#2088
23M → 24M1120+112#2088#1976
24M → 40K1050+105#1976#1871
40K → 25.2M614-8#1871#1879
25.2M → Finish5513+42#1879#1837
TOTALS2011275+1736
📊

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