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BOSTON MARATHON 2025

Jacob Kughn

Bib: 4239•M

MI

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 4%
Gender (Male)
#0 / 16105
Top 6%
Division (M18-39)
#0 / 5642
Top 15%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K· 3.11 mi
19:34
Rank: #2416
Start → 5K
19:34 | 6:18/mi
10K· 6.21 mi
38:34
Rank: #1898 (+518)
5K → 10K
19:00 | 6:07/mi
15K· 9.32 mi
57:31
Rank: #1706 (+192)
10K → 15K
18:57 | 6:06/mi
20K· 12.43 mi
1:16:25
Rank: #1525 (+181)
15K → 20K
18:54 | 6:05/mi
Half· 13.11 mi
1:20:32
Rank: #1505 (+20)
20K → Half
4:07 | 6:02/mi
25K· 15.53 mi
1:35:33
Rank: #1473 (+32)
Half → 25K
15:01 | 6:12/mi
30K· 18.64 mi
1:54:44
Rank: #1318 (+155)
25K → 30K
19:11 | 6:10/mi
20M
2:03:16
Rank: #1271 (+47)
30K → 20M
8:32 | 6:17/mi
21M
2:09:56
Rank: #1235 (+36)
20M → 21M
6:40 | 6:40/mi
35K· 21.75 mi
2:14:27
Rank: #1206 (+29)
21M → 35K
4:31 | 6:02/mi
23M
2:22:19
Rank: #1135 (+71)
35K → 23M
7:52 | 6:17/mi
24M
2:28:32
Rank: #1112 (+23)
23M → 24M
6:13 | 6:13/mi
40K· 24.85 mi
2:33:50
Rank: #1080 (+32)
24M → 40K
5:18 | 6:12/mi
25.2M
2:36:12
Rank: #1067 (+13)
40K → 25.2M
2:22 | 6:52/mi
Finish· 26.22 mi
2:42:14
Rank: #1031 (+36)
25.2M → Finish
6:02 | 5:55/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:20:32
Pace6:09 /mi
2nd Half
Distance13.11 mi
Time1:21:42
Pace6:14 /mi
📊Positive Split: 1.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:5519:346:1819:34
6:18
-
10K
6.21 mi10:40:5538:346:1219:00
6:07
-0:11
15K
9.32 mi10:59:5257:316:1018:57
6:06
-0:01
20K
12.43 mi11:18:461:16:256:0918:54
6:05
-0:01
Half
13.11 mi11:22:531:20:326:094:07
6:02
-0:03
25K
15.53 mi11:37:541:35:336:0915:01
6:12
+0:10
30K
18.64 mi11:57:051:54:446:0919:11
6:10
-0:02
20M
20.00 mi12:05:372:03:166:108:32
6:17
+0:07
21M
21.00 mi12:12:172:09:566:116:40
6:40
+0:23
35K
21.75 mi12:16:482:14:276:114:31
6:02
-0:38
23M
23.00 mi12:24:402:22:196:117:52
6:17
+0:15
24M
24.00 mi12:30:532:28:326:116:13
6:13
-0:04
40K
24.85 mi12:36:112:33:506:115:18
6:12
-0:01
25.2M
25.20 mi12:38:332:36:126:122:22
6:52
+0:40
Finish
26.22 mi12:44:352:42:146:126:02
5:55
-0:57

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

5:55 /mi

Average Pace

6:12 /mi

Slowest Pace

6:52 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

2:33:12

94% of race

Time at Steady Pace

9:02

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:11 /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

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:21:5519:346:1819:34
6:18
#2416
10K
6.21 mi10:40:5538:346:1219:00
6:07
#1898
15K
9.32 mi10:59:5257:316:1018:57
6:06
#1706
20K
12.43 mi11:18:461:16:256:0918:54
6:05
#1525
Half
13.11 mi11:22:531:20:326:094:07
6:02
#1505
25K
15.53 mi11:37:541:35:336:0915:01
6:12
#1473
30K
18.64 mi11:57:051:54:446:0919:11
6:10
#1318
20M
20.00 mi12:05:372:03:166:108:32
6:17
#1271
21M
21.00 mi12:12:172:09:566:116:40
6:40
#1235
35K
21.75 mi12:16:482:14:276:114:31
6:02
#1206
23M
23.00 mi12:24:402:22:196:117:52
6:17
#1135
24M
24.00 mi12:30:532:28:326:116:13
6:13
#1112
40K
24.85 mi12:36:112:33:506:115:18
6:12
#1080
25.2M
25.20 mi12:38:332:36:126:122:22
6:52
#1067
Finish
26.22 mi12:44:352:42:146:126:02
5:55
#1031
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi2416230023001363(Top 5%)1295(Top 8%)1295(Top 23%)
10K6.21 mi3.10 mi1898+5181807+4931807+4931521(Top 5%)1444(Top 9%)1444(Top 26%)
15K9.32 mi3.11 mi1706+1921622+1851622+1851363(Top 5%)1295(Top 8%)1295(Top 23%)
20K12.43 mi3.11 mi1525+1811448+1741448+1741110(Top 4%)1046(Top 6%)1046(Top 19%)
Half13.11 mi0.68 mi1505+201430+181430+181254(Top 4%)1188(Top 7%)1188(Top 21%)
25K15.53 mi2.42 mi1473+321397+331397+331416(Top 5%)1344(Top 8%)1344(Top 24%)
30K18.64 mi3.11 mi1318+1551244+1531244+153853(Top 3%)799(Top 5%)799(Top 14%)
20M20.00 mi1.36 mi1271+471199+451199+45907(Top 3%)855(Top 5%)855(Top 15%)
21M21.00 mi1.00 mi1235+361164+351164+351096(Top 4%)1035(Top 6%)1035(Top 18%)
35K21.75 mi0.75 mi1206+291136+281136+28808(Top 3%)754(Top 5%)754(Top 13%)
23M23.00 mi1.25 mi1135+711069+671069+67842(Top 3%)795(Top 5%)795(Top 14%)
24M24.00 mi1.00 mi1112+231046+231046+231064(Top 4%)1000(Top 6%)1000(Top 18%)
40K24.85 mi0.85 mi1080+321017+291017+29728(Top 3%)683(Top 4%)683(Top 12%)
25.2M25.20 mi0.35 mi1067+131004+131004+131110(Top 4%)1020(Top 6%)1020(Top 18%)
Finish26.22 mi1.02 mi1031+36969+35969+35731(Top 3%)687(Top 4%)687(Top 12%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 5%
×21stories
+97ft-345ft

Overall

1363

Males

1295

M18-39

1295

5K→10K

3.1 - 6.2 mi

Top 5%
×5stories
+79ft-138ft

Overall

1521

Males

1444

M18-39

1444

10K→15K

6.2 - 9.3 mi

Top 5%
×3stories
+67ft-78ft

Overall

1363

Males

1295

M18-39

1295

15K→20K

9.3 - 12.4 mi

Top 4%
×5stories
+106ft-86ft

Overall

1110

Males

1046

M18-39

1046

20K→Half

12.4 - 13.1 mi

Top 4%
×2stories
+19ft-37ft

Overall

1254

Males

1188

M18-39

1188

Half→25K

13.1 - 15.5 mi

Top 5%
×4stories
+66ft-88ft

Overall

1416

Males

1344

M18-39

1344

25K→30K

15.5 - 18.6 mi

Top 3%
×9stories
+181ft-148ft

Overall

853

Males

799

M18-39

799

30K→20M

18.6 - 20.0 mi

Top 3%
×5stories
+64ft-50ft

Overall

907

Males

855

M18-39

855

20M→21M

20.0 - 21.0 mi

Top 4%
×8stories
+106ft-24ft

Overall

1096

Males

1035

M18-39

1035

21M→35K

21.0 - 21.8 mi

Top 3%
×7stories
+17ft-86ft

Overall

808

Males

754

M18-39

754

35K→23M

21.8 - 23.0 mi

Top 3%
×5stories
+23ft-63ft

Overall

842

Males

795

M18-39

795

23M→24M

23.0 - 24.0 mi

Top 4%
×6stories
+12ft-82ft

Overall

1064

Males

1000

M18-39

1000

24M→40K

24.0 - 24.9 mi

Top 3%
×1story
+6ft-20ft

Overall

728

Males

683

M18-39

683

40K→25.2M

24.9 - 25.2 mi

Top 4%
×1story
+13ft-16ft

Overall

1110

Males

1020

M18-39

1020

25.2M→Finish

25.2 - 26.2 mi

Top 3%
×2stories
+22ft-21ft

Overall

731

Males

687

M18-39

687

Passing Analysis

Category:
Athletes Passed
1458
Passed By
73
Net Change
+1385
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2416
5K → 10K5246+518#2416#1898
10K → 15K1964+192#1898#1706
15K → 20K1810+181#1706#1525
20K → Half222+20#1525#1505
Half → 25K5321+32#1505#1473
25K → 30K1583+155#1473#1318
30K → 20M536+47#1318#1271
20M → 21M448+36#1271#1235
21M → 35K323+29#1235#1206
35K → 23M754+71#1206#1135
23M → 24M285+23#1135#1112
24M → 40K364+32#1112#1080
40K → 25.2M152+13#1080#1067
25.2M → Finish415+36#1067#1031
TOTALS145873+1385
📊

Passing Visuals

Category:

📈Position Graph

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🎨Heatmap Timeline

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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