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BOSTON MARATHON 2025

Ken Shelton

Bib: 24676•M

TN

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M65-69)
#0 / 639
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
8:42/mi
27:02
↑ 97↓ 3451.5%
10K· 6.21 mi
8:43/mi
54:06
↑ 79↓ 1380.4%
15K· 9.32 mi
8:45/mi
1:21:18
↑ 67↓ 78
20K· 12.43 mi
8:53/mi
1:48:53
↑ 106↓ 860.1%
Half· 13.11 mi
8:52/mi
1:54:56
↑ 19↓ 370.5%
25K· 15.53 mi
9:35/mi
2:18:10
↑ 66↓ 880.2%
30K· 18.64 mi
10:45/mi
2:51:35
↑ 181↓ 1480.2%
20M
11:22/mi
3:07:02
↑ 64↓ 500.2%
21M
12:40/mi
3:19:42
↑ 106↓ 241.6%
35K· 21.75 mi
11:15/mi
3:28:07
↑ 17↓ 861.7%
23M
11:37/mi
3:42:40
↑ 23↓ 630.6%
24M
11:25/mi
3:54:05
↓ 821.3%
40K· 24.85 mi
12:09/mi
4:04:28
↓ 200.3%
25.2M
13:12/mi
4:09:01
↑ 13↓ 160.2%
Finish· 26.22 mi
10:39/mi
4:19:52
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:54:56
Pace8:46 /mi
2nd Half
Distance13.11 mi
Time2:24:56
Pace11:03 /mi
📊Positive Split: 26.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:28:2527:028:4227:02
8:42
-
10K
6.21 mi11:55:2954:068:4227:04
8:43
+0:01
15K
9.32 mi12:22:411:21:188:4327:12
8:45
+0:02
20K
12.43 mi12:50:161:48:538:4627:35
8:53
+0:08
Half
13.11 mi12:56:191:54:568:466:03
8:52
-0:01
25K
15.53 mi13:19:332:18:108:5423:14
9:35
+0:43
30K
18.64 mi13:52:582:51:359:1233:25
10:45
+1:10
20M
20.00 mi14:08:253:07:029:2115:27
11:22
+0:37
21M
21.00 mi14:21:053:19:429:3112:40
12:40
+1:18
35K
21.75 mi14:29:303:28:079:348:25
11:15
-1:25
23M
23.00 mi14:44:033:42:409:4114:33
11:37
+0:22
24M
24.00 mi14:55:283:54:059:4511:25
11:25
-0:12
40K
24.85 mi15:05:514:04:289:5010:23
12:09
+0:44
25.2M
25.20 mi15:10:244:09:019:534:33
13:12
+1:03
Finish
26.22 mi15:21:154:19:529:5510:51
10:39
-2:33

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

8:42 /mi

Average Pace

9:55 /mi

Slowest Pace

13:12 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:18:10

53% of race

Time at Steady Pace

1:19:33

31% of race

Time at Slower Pace

42:09

16% of race

Average Pace: 9:55 /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 mi11:28:2527:028:4227:02
8:42
#21023
10K
6.21 mi11:55:2954:068:4227:04
8:43
#20944
15K
9.32 mi12:22:411:21:188:4327:12
8:45
#20860
20K
12.43 mi12:50:161:48:538:4627:35
8:53
#20730
Half
13.11 mi12:56:191:54:568:466:03
8:52
#20761
25K
15.53 mi13:19:332:18:108:5423:14
9:35
#21067
30K
18.64 mi13:52:582:51:359:1233:25
10:45
#21781
20M
20.00 mi14:08:253:07:029:2115:27
11:22
#22085
21M
21.00 mi14:21:053:19:429:3112:40
12:40
#22286
35K
21.75 mi14:29:303:28:079:348:25
11:15
#22396
23M
23.00 mi14:44:033:42:409:4114:33
11:37
#22542
24M
24.00 mi14:55:283:54:059:4511:25
11:25
#22648
40K
24.85 mi15:05:514:04:289:5010:23
12:09
#22783
25.2M
25.20 mi15:10:244:09:019:534:33
13:12
#22849
Finish
26.22 mi15:21:154:19:529:5510:51
10:39
#22937
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM65-69Seg. OverallSeg. MalesSeg. M65-69
5K3.11 mi3.11 mi21023128701287020782(Top 73%)12850(Top 80%)12850(Top 2011%)
10K6.21 mi3.10 mi20944+7912862+812862+820940(Top 74%)12895(Top 80%)12895(Top 2018%)
15K9.32 mi3.11 mi20860+8412844+1812844+1820782(Top 73%)12850(Top 80%)12850(Top 2011%)
20K12.43 mi3.11 mi20730+13012785+5912785+5920361(Top 72%)12619(Top 78%)12619(Top 1975%)
Half13.11 mi0.68 mi20761-3112798-1312798-1321227(Top 75%)13024(Top 81%)13024(Top 2038%)
25K15.53 mi2.42 mi21067-30612933-13512933-13522125(Top 78%)13347(Top 83%)13347(Top 2089%)
30K18.64 mi3.11 mi21781-71413223-29013223-29023502(Top 83%)13835(Top 86%)13835(Top 2165%)
20M20.00 mi1.36 mi22085-30413340-11713340-11724300(Top 86%)14121(Top 88%)14121(Top 2210%)
21M21.00 mi1.00 mi22286-20113401-6113401-6124615(Top 87%)14194(Top 88%)14194(Top 2221%)
35K21.75 mi0.75 mi22396-11013437-3613437-3624686(Top 87%)14203(Top 88%)14203(Top 2223%)
23M23.00 mi1.25 mi22542-14613473-3613473-3624446(Top 86%)14065(Top 87%)14065(Top 2201%)
24M24.00 mi1.00 mi22648-10613486-1313486-1324744(Top 87%)14164(Top 88%)14164(Top 2217%)
40K24.85 mi0.85 mi22783-13513537-5113537-5125141(Top 89%)14337(Top 89%)14337(Top 2244%)
25.2M25.20 mi0.35 mi22849-6613559-2213559-2225284(Top 89%)14384(Top 89%)14384(Top 2251%)
Finish26.22 mi1.02 mi22937-8813590-3113590-3124609(Top 87%)14086(Top 87%)14086(Top 2204%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 73%
×21story building
+97ft-345ft

Overall

20782

Males

12850

M65-69

12850

5K→10K

3.1 - 6.2 mi

Top 74%
×5story building
+79ft-138ft

Overall

20940

Males

12895

M65-69

12895

10K→15K

6.2 - 9.3 mi

Top 73%
×3story building
+67ft-78ft

Overall

20782

Males

12850

M65-69

12850

15K→20K

9.3 - 12.4 mi

Top 72%
×5story building
+106ft-86ft

Overall

20361

Males

12619

M65-69

12619

20K→Half

12.4 - 13.1 mi

Top 75%
×2story building
+19ft-37ft

Overall

21227

Males

13024

M65-69

13024

Half→25K

13.1 - 15.5 mi

Top 78%
×4story building
+66ft-88ft

Overall

22125

Males

13347

M65-69

13347

25K→30K

15.5 - 18.6 mi

Top 83%
×9story building
+181ft-148ft

Overall

23502

Males

13835

M65-69

13835

30K→20M

18.6 - 20.0 mi

Top 86%
×5story building
+64ft-50ft

Overall

24300

Males

14121

M65-69

14121

20M→21M

20.0 - 21.0 mi

Top 87%
×8story building
+106ft-24ft

Overall

24615

Males

14194

M65-69

14194

21M→35K

21.0 - 21.8 mi

Top 87%
×7story building
+17ft-86ft

Overall

24686

Males

14203

M65-69

14203

35K→23M

21.8 - 23.0 mi

Top 86%
×5story building
+23ft-63ft

Overall

24446

Males

14065

M65-69

14065

23M→24M

23.0 - 24.0 mi

Top 87%
×6story building
+12ft-82ft

Overall

24744

Males

14164

M65-69

14164

24M→40K

24.0 - 24.9 mi

Top 89%
×1story
+6ft-20ft

Overall

25141

Males

14337

M65-69

14337

40K→25.2M

24.9 - 25.2 mi

Top 89%
×1story
+13ft-16ft

Overall

25284

Males

14384

M65-69

14384

25.2M→Finish

25.2 - 26.2 mi

Top 87%
×2story building
+22ft-21ft

Overall

24609

Males

14086

M65-69

14086

Passing Analysis

Category:
Athletes Passed
1115
Passed By
3029
Net Change
-1914
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21023
5K → 10K312233+79#21023#20944
10K → 15K224140+84#20944#20860
15K → 20K252122+130#20860#20730
20K → Half2051-31#20730#20761
Half → 25K66372-306#20761#21067
25K → 30K53767-714#21067#21781
30K → 20M35339-304#21781#22085
20M → 21M38239-201#22085#22286
21M → 35K16126-110#22286#22396
35K → 23M35181-146#22396#22542
23M → 24M33139-106#22542#22648
24M → 40K9144-135#22648#22783
40K → 25.2M773-66#22783#22849
25.2M → Finish15103-88#22849#22937
TOTALS11153029-1914
📊

Passing Visuals

Category:
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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