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BOSTON MARATHON 2023

John Karle

Bib: 25918•M

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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Division (M18-39)
#0 / 5285
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
30:54
Rank: #23316
Start → 5K
30:54 | 9:57/mi
10K· 6.21 mi
1:01:09
Rank: #23255 (+61)
5K → 10K
30:15 | 9:44/mi
15K· 9.32 mi
1:30:31
Rank: #22913 (+342)
10K → 15K
29:22 | 9:27/mi
20K· 12.43 mi
2:00:13
Rank: #22613 (+300)
15K → 20K
29:42 | 9:34/mi
Half· 13.11 mi
2:06:42
Rank: #22590 (+23)
20K → Half
6:29 | 9:30/mi
25K· 15.53 mi
2:30:08
Rank: #22380 (+210)
Half → 25K
23:26 | 9:40/mi
30K· 18.64 mi
3:01:16
Rank: #22139 (+241)
25K → 30K
31:08 | 10:01/mi
20M
3:15:08
Rank: #22039 (+100)
30K → 20M
13:52 | 10:12/mi
21M
3:25:28
Rank: #21889 (+150)
20M → 21M
10:20 | 10:20/mi
35K· 21.75 mi
3:32:48
Rank: #21854 (+35)
21M → 35K
7:20 | 9:48/mi
23M
3:45:31
Rank: #21763 (+91)
35K → 23M
12:43 | 10:09/mi
24M
3:55:56
Rank: #21779 (-16)
23M → 24M
10:25 | 10:25/mi
40K· 24.85 mi
4:04:38
Rank: #21716 (+63)
24M → 40K
8:42 | 10:11/mi
25.2M
4:08:28
Rank: #21701 (+15)
40K → 25.2M
3:50 | 11:07/mi
Finish· 26.22 mi
4:17:32
Rank: #21583 (+118)
25.2M → Finish
9:04 | 8:54/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:06:42
Pace9:40 /mi
2nd Half
Distance13.11 mi
Time2:10:50
Pace9:59 /mi
📊Positive Split: 3.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:53:4330:549:5730:54
9:57
-
10K
6.21 mi12:23:581:01:099:5030:15
9:44
-0:13
15K
9.32 mi12:53:201:30:319:4329:22
9:27
-0:17
20K
12.43 mi13:23:022:00:139:4029:42
9:34
+0:07
Half
13.11 mi13:29:312:06:429:406:29
9:30
-0:04
25K
15.53 mi13:52:572:30:089:4023:26
9:40
+0:10
30K
18.64 mi14:24:053:01:169:4331:08
10:01
+0:21
20M
20.00 mi14:37:573:15:089:4513:52
10:12
+0:11
21M
21.00 mi14:48:173:25:289:4710:20
10:20
+0:08
35K
21.75 mi14:55:373:32:489:477:20
9:48
-0:32
23M
23.00 mi15:08:203:45:319:4812:43
10:09
+0:21
24M
24.00 mi15:18:453:55:569:5010:25
10:25
+0:16
40K
24.85 mi15:27:274:04:389:518:42
10:11
-0:14
25.2M
25.20 mi15:31:174:08:289:523:50
11:07
+0:56
Finish
26.22 mi15:40:214:17:329:509:04
8:54
-2:13

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

8:54 /mi

Average Pace

9:50 /mi

Slowest Pace

11:07 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:38:03

38% of race

Time at Steady Pace

2:01:02

47% of race

Time at Slower Pace

38:27

15% of race

Average Pace: 9:49 /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 mi11:53:4330:549:5730:54
9:57
#23316
10K
6.21 mi12:23:581:01:099:5030:15
9:44
#23255
15K
9.32 mi12:53:201:30:319:4329:22
9:27
#22913
20K
12.43 mi13:23:022:00:139:4029:42
9:34
#22613
Half
13.11 mi13:29:312:06:429:406:29
9:30
#22590
25K
15.53 mi13:52:572:30:089:4023:26
9:40
#22380
30K
18.64 mi14:24:053:01:169:4331:08
10:01
#22139
20M
20.00 mi14:37:573:15:089:4513:52
10:12
#22039
21M
21.00 mi14:48:173:25:289:4710:20
10:20
#21889
35K
21.75 mi14:55:373:32:489:477:20
9:48
#21854
23M
23.00 mi15:08:203:45:319:4812:43
10:09
#21763
24M
24.00 mi15:18:453:55:569:5010:25
10:25
#21779
40K
24.85 mi15:27:274:04:389:518:42
10:11
#21716
25.2M
25.20 mi15:31:174:08:289:523:50
11:07
#21701
Finish
26.22 mi15:40:214:17:329:509:04
8:54
#21583
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi23316137371373722108(Top 83%)13236(Top 87%)13236(Top 250%)
10K6.21 mi3.10 mi23255+6113726+1113726+1123124(Top 87%)13702(Top 90%)13702(Top 259%)
15K9.32 mi3.11 mi22913+34213587+13913587+13922108(Top 83%)13236(Top 87%)13236(Top 250%)
20K12.43 mi3.11 mi22613+30013453+13413453+13421722(Top 82%)13064(Top 86%)13064(Top 247%)
Half13.11 mi0.68 mi22590+2313433+2013433+2022099(Top 83%)13239(Top 87%)13239(Top 251%)
25K15.53 mi2.42 mi22380+21013315+11813315+11821340(Top 80%)12857(Top 85%)12857(Top 243%)
30K18.64 mi3.11 mi22139+24113203+11213203+11221086(Top 79%)12670(Top 83%)12670(Top 240%)
20M20.00 mi1.36 mi22039+10013148+5513148+5521013(Top 79%)12573(Top 83%)12573(Top 238%)
21M21.00 mi1.00 mi21889+15013075+7313075+7319110(Top 72%)11693(Top 77%)11693(Top 221%)
35K21.75 mi0.75 mi21854+3513051+2413051+2420759(Top 78%)12374(Top 82%)12374(Top 234%)
23M23.00 mi1.25 mi21763+9112994+5712994+5720445(Top 77%)12223(Top 81%)12223(Top 231%)
24M24.00 mi1.00 mi21779-1612992+212992+221834(Top 82%)12794(Top 84%)12794(Top 242%)
40K24.85 mi0.85 mi21716+6312950+4212950+4220422(Top 77%)12110(Top 80%)12110(Top 229%)
25.2M25.20 mi0.35 mi21701+1512937+1312937+1320706(Top 78%)12257(Top 81%)12257(Top 232%)
Finish26.22 mi1.02 mi21583+11812878+5912878+5917478(Top 66%)10826(Top 71%)10826(Top 205%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 83%
×21stories
+97ft-345ft

Overall

22108

Males

13236

M18-39

13236

5K→10K

3.1 - 6.2 mi

Top 87%
×5stories
+79ft-138ft

Overall

23124

Males

13702

M18-39

13702

10K→15K

6.2 - 9.3 mi

Top 83%
×3stories
+67ft-78ft

Overall

22108

Males

13236

M18-39

13236

15K→20K

9.3 - 12.4 mi

Top 82%
×5stories
+106ft-86ft

Overall

21722

Males

13064

M18-39

13064

20K→Half

12.4 - 13.1 mi

Top 83%
×2stories
+19ft-37ft

Overall

22099

Males

13239

M18-39

13239

Half→25K

13.1 - 15.5 mi

Top 80%
×4stories
+66ft-88ft

Overall

21340

Males

12857

M18-39

12857

25K→30K

15.5 - 18.6 mi

Top 79%
×9stories
+181ft-148ft

Overall

21086

Males

12670

M18-39

12670

30K→20M

18.6 - 20.0 mi

Top 79%
×5stories
+64ft-50ft

Overall

21013

Males

12573

M18-39

12573

20M→21M

20.0 - 21.0 mi

Top 72%
×8stories
+106ft-24ft

Overall

19110

Males

11693

M18-39

11693

21M→35K

21.0 - 21.8 mi

Top 78%
×7stories
+17ft-86ft

Overall

20759

Males

12374

M18-39

12374

35K→23M

21.8 - 23.0 mi

Top 77%
×5stories
+23ft-63ft

Overall

20445

Males

12223

M18-39

12223

23M→24M

23.0 - 24.0 mi

Top 82%
×6stories
+12ft-82ft

Overall

21834

Males

12794

M18-39

12794

24M→40K

24.0 - 24.9 mi

Top 77%
×1story
+6ft-20ft

Overall

20422

Males

12110

M18-39

12110

40K→25.2M

24.9 - 25.2 mi

Top 78%
×1story
+13ft-16ft

Overall

20706

Males

12257

M18-39

12257

25.2M→Finish

25.2 - 26.2 mi

Top 66%
×2stories
+22ft-21ft

Overall

17478

Males

10826

M18-39

10826

Passing Analysis

Category:
Athletes Passed
2143
Passed By
410
Net Change
+1733
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23316
5K → 10K244183+61#23316#23255
10K → 15K37634+342#23255#22913
15K → 20K32424+300#22913#22613
20K → Half3411+23#22613#22590
Half → 25K2199+210#22590#22380
25K → 30K26221+241#22380#22139
30K → 20M12020+100#22139#22039
20M → 21M1588+150#22039#21889
21M → 35K4510+35#21889#21854
35K → 23M11120+91#21854#21763
23M → 24M3349-16#21763#21779
24M → 40K729+63#21779#21716
40K → 25.2M2510+15#21716#21701
25.2M → Finish1202+118#21701#21583
TOTALS2143410+1733
📊

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