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BOSTON MARATHON 2023

Ken Shelton

Bib: 22008•M

NC

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M65-69)
#0 / 549
Top 23%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
26:32
Rank: #17830
Start → 5K
26:32 | 8:32/mi
10K· 6.21 mi
52:39
Rank: #17734 (+96)
5K → 10K
26:07 | 8:24/mi
15K· 9.32 mi
1:18:49
Rank: #17553 (+181)
10K → 15K
26:10 | 8:25/mi
20K· 12.43 mi
1:45:18
Rank: #17389 (+164)
15K → 20K
26:29 | 8:31/mi
Half· 13.11 mi
1:51:00
Rank: #17364 (+25)
20K → Half
5:42 | 8:21/mi
25K· 15.53 mi
2:11:39
Rank: #17186 (+178)
Half → 25K
20:39 | 8:31/mi
30K· 18.64 mi
2:38:32
Rank: #16806 (+380)
25K → 30K
26:53 | 8:39/mi
20M
2:50:34
Rank: #16712 (+94)
30K → 20M
12:02 | 8:51/mi
21M
3:00:04
Rank: #16659 (+53)
20M → 21M
9:30 | 9:30/mi
35K· 21.75 mi
3:06:29
Rank: #16606 (+53)
21M → 35K
6:25 | 8:35/mi
23M
3:18:19
Rank: #16719 (-113)
35K → 23M
11:50 | 9:27/mi
24M
3:27:33
Rank: #16807 (-88)
23M → 24M
9:14 | 9:14/mi
40K· 24.85 mi
3:35:39
Rank: #16848 (-41)
24M → 40K
8:06 | 9:28/mi
25.2M
3:39:19
Rank: #16922 (-74)
40K → 25.2M
3:40 | 10:38/mi
Finish· 26.22 mi
3:48:53
Rank: #17082 (-160)
25.2M → Finish
9:34 | 9:23/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:51:00
Pace8:28 /mi
2nd Half
Distance13.11 mi
Time1:57:53
Pace9:00 /mi
📊Positive Split: 6.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:20:5826:328:3226:32
8:32
-
10K
6.21 mi11:47:0552:398:2826:07
8:24
-0:08
15K
9.32 mi12:13:151:18:498:2726:10
8:25
+0:01
20K
12.43 mi12:39:441:45:188:2826:29
8:31
+0:06
Half
13.11 mi12:45:261:51:008:285:42
8:21
-0:10
25K
15.53 mi13:06:052:11:398:2820:39
8:31
+0:10
30K
18.64 mi13:32:582:38:328:3026:53
8:39
+0:08
20M
20.00 mi13:45:002:50:348:3212:02
8:51
+0:12
21M
21.00 mi13:54:303:00:048:349:30
9:30
+0:39
35K
21.75 mi14:00:553:06:298:346:25
8:35
-0:55
23M
23.00 mi14:12:453:18:198:3711:50
9:27
+0:52
24M
24.00 mi14:21:593:27:338:399:14
9:14
-0:13
40K
24.85 mi14:30:053:35:398:418:06
9:28
+0:14
25.2M
25.20 mi14:33:453:39:198:423:40
10:38
+1:10
Finish
26.22 mi14:43:193:48:538:449:34
9:23
-1:15

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

8:21 /mi

Average Pace

8:44 /mi

Slowest Pace

10:38 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

2:56:59

77% of race

Time at Slower Pace

51:54

23% of race

Average Pace: 8:44 /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 mi11:20:5826:328:3226:32
8:32
#17830
10K
6.21 mi11:47:0552:398:2826:07
8:24
#17734
15K
9.32 mi12:13:151:18:498:2726:10
8:25
#17553
20K
12.43 mi12:39:441:45:188:2826:29
8:31
#17389
Half
13.11 mi12:45:261:51:008:285:42
8:21
#17364
25K
15.53 mi13:06:052:11:398:2820:39
8:31
#17186
30K
18.64 mi13:32:582:38:328:3026:53
8:39
#16806
20M
20.00 mi13:45:002:50:348:3212:02
8:51
#16712
21M
21.00 mi13:54:303:00:048:349:30
9:30
#16659
35K
21.75 mi14:00:553:06:298:346:25
8:35
#16606
23M
23.00 mi14:12:453:18:198:3711:50
9:27
#16719
24M
24.00 mi14:21:593:27:338:399:14
9:14
#16807
40K
24.85 mi14:30:053:35:398:418:06
9:28
#16848
25.2M
25.20 mi14:33:453:39:198:423:40
10:38
#16922
Finish
26.22 mi14:43:193:48:538:449:34
9:23
#17082
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM65-69Seg. OverallSeg. MalesSeg. M65-69
5K3.11 mi3.11 mi17830113661136617277(Top 65%)11160(Top 74%)11160(Top 2033%)
10K6.21 mi3.10 mi17734+9611348+1811348+1817611(Top 66%)11343(Top 75%)11343(Top 2066%)
15K9.32 mi3.11 mi17553+18111287+6111287+6117277(Top 65%)11160(Top 74%)11160(Top 2033%)
20K12.43 mi3.11 mi17389+16411217+7011217+7017003(Top 64%)11058(Top 73%)11058(Top 2014%)
Half13.11 mi0.68 mi17364+2511203+1411203+1416804(Top 63%)11005(Top 73%)11005(Top 2005%)
25K15.53 mi2.42 mi17186+17811111+9211111+9216294(Top 61%)10667(Top 70%)10667(Top 1943%)
30K18.64 mi3.11 mi16806+38010936+17510936+17515236(Top 57%)10143(Top 67%)10143(Top 1848%)
20M20.00 mi1.36 mi16712+9410876+6010876+6015743(Top 59%)10314(Top 68%)10314(Top 1879%)
21M21.00 mi1.00 mi16659+5310844+3210844+3215944(Top 60%)10328(Top 68%)10328(Top 1881%)
35K21.75 mi0.75 mi16606+5310810+3410810+3415714(Top 59%)10169(Top 67%)10169(Top 1852%)
23M23.00 mi1.25 mi16719-11310843-3310843-3318118(Top 68%)11162(Top 74%)11162(Top 2033%)
24M24.00 mi1.00 mi16807-8810857-1410857-1418165(Top 68%)11152(Top 73%)11152(Top 2031%)
40K24.85 mi0.85 mi16848-4110851+610851+618231(Top 68%)11142(Top 73%)11142(Top 2030%)
25.2M25.20 mi0.35 mi16922-7410874-2310874-2319459(Top 73%)11667(Top 77%)11667(Top 2125%)
Finish26.22 mi1.02 mi17082-16010941-6710941-6719701(Top 74%)11842(Top 78%)11842(Top 2157%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 65%
×21stories
+97ft-345ft

Overall

17277

Males

11160

M65-69

11160

5K→10K

3.1 - 6.2 mi

Top 66%
×5stories
+79ft-138ft

Overall

17611

Males

11343

M65-69

11343

10K→15K

6.2 - 9.3 mi

Top 65%
×3stories
+67ft-78ft

Overall

17277

Males

11160

M65-69

11160

15K→20K

9.3 - 12.4 mi

Top 64%
×5stories
+106ft-86ft

Overall

17003

Males

11058

M65-69

11058

20K→Half

12.4 - 13.1 mi

Top 63%
×2stories
+19ft-37ft

Overall

16804

Males

11005

M65-69

11005

Half→25K

13.1 - 15.5 mi

Top 61%
×4stories
+66ft-88ft

Overall

16294

Males

10667

M65-69

10667

25K→30K

15.5 - 18.6 mi

Top 57%
×9stories
+181ft-148ft

Overall

15236

Males

10143

M65-69

10143

30K→20M

18.6 - 20.0 mi

Top 59%
×5stories
+64ft-50ft

Overall

15743

Males

10314

M65-69

10314

20M→21M

20.0 - 21.0 mi

Top 60%
×8stories
+106ft-24ft

Overall

15944

Males

10328

M65-69

10328

21M→35K

21.0 - 21.8 mi

Top 59%
×7stories
+17ft-86ft

Overall

15714

Males

10169

M65-69

10169

35K→23M

21.8 - 23.0 mi

Top 68%
×5stories
+23ft-63ft

Overall

18118

Males

11162

M65-69

11162

23M→24M

23.0 - 24.0 mi

Top 68%
×6stories
+12ft-82ft

Overall

18165

Males

11152

M65-69

11152

24M→40K

24.0 - 24.9 mi

Top 68%
×1story
+6ft-20ft

Overall

18231

Males

11142

M65-69

11142

40K→25.2M

24.9 - 25.2 mi

Top 73%
×1story
+13ft-16ft

Overall

19459

Males

11667

M65-69

11667

25.2M→Finish

25.2 - 26.2 mi

Top 74%
×2stories
+22ft-21ft

Overall

19701

Males

11842

M65-69

11842

Passing Analysis

Category:
Athletes Passed
2054
Passed By
1306
Net Change
+748
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17830
5K → 10K374278+96#17830#17734
10K → 15K295114+181#17734#17553
15K → 20K25288+164#17553#17389
20K → Half4116+25#17389#17364
Half → 25K21537+178#17364#17186
25K → 30K39717+380#17186#16806
30K → 20M13238+94#16806#16712
20M → 21M10754+53#16712#16659
21M → 35K7623+53#16659#16606
35K → 23M52165-113#16606#16719
23M → 24M36124-88#16719#16807
24M → 40K4283-41#16807#16848
40K → 25.2M1185-74#16848#16922
25.2M → Finish24184-160#16922#17082
TOTALS20541306+748
📊

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