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BOSTON MARATHON 2023

Chuck Shork

Bib: 24423•M

WI

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M75-79)
#0 / 49
Top 22%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
29:27
Rank: #22026
Start → 5K
29:27 | 9:29/mi
10K· 6.21 mi
59:26
Rank: #22507 (-481)
5K → 10K
29:59 | 9:39/mi
15K· 9.32 mi
1:30:19
Rank: #22847 (-340)
10K → 15K
30:53 | 9:56/mi
20K· 12.43 mi
2:01:37
Rank: #22897 (-50)
15K → 20K
31:18 | 10:04/mi
Half· 13.11 mi
2:08:20
Rank: #22897
20K → Half
6:43 | 9:51/mi
25K· 15.53 mi
2:33:15
Rank: #22883 (+14)
Half → 25K
24:55 | 10:17/mi
30K· 18.64 mi
3:06:42
Rank: #22828 (+55)
25K → 30K
33:27 | 10:46/mi
20M
3:21:00
Rank: #22744 (+84)
30K → 20M
14:18 | 10:31/mi
21M
3:32:57
Rank: #22748 (-4)
20M → 21M
11:57 | 11:57/mi
35K· 21.75 mi
3:40:27
Rank: #22701 (+47)
21M → 35K
7:30 | 10:01/mi
23M
3:53:28
Rank: #22591 (+110)
35K → 23M
13:01 | 10:24/mi
24M
4:03:33
Rank: #22532 (+59)
23M → 24M
10:05 | 10:05/mi
40K· 24.85 mi
4:12:32
Rank: #22481 (+51)
24M → 40K
8:59 | 10:30/mi
25.2M
4:16:39
Rank: #22481
40K → 25.2M
4:07 | 11:56/mi
Finish· 26.22 mi
4:27:16
Rank: #22496 (-15)
25.2M → Finish
10:37 | 10:25/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:08:20
Pace9:47 /mi
2nd Half
Distance13.11 mi
Time2:18:56
Pace10:36 /mi
📊Positive Split: 8.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:45:0329:279:2929:27
9:29
-
10K
6.21 mi12:15:0259:269:3429:59
9:39
+0:10
15K
9.32 mi12:45:551:30:199:4130:53
9:56
+0:17
20K
12.43 mi13:17:132:01:379:4731:18
10:04
+0:08
Half
13.11 mi13:23:562:08:209:476:43
9:51
-0:13
25K
15.53 mi13:48:512:33:159:5224:55
10:17
+0:26
30K
18.64 mi14:22:183:06:4210:0133:27
10:46
+0:29
20M
20.00 mi14:36:363:21:0010:0314:18
10:31
-0:15
21M
21.00 mi14:48:333:32:5710:0811:57
11:57
+1:26
35K
21.75 mi14:56:033:40:2710:087:30
10:01
-1:56
23M
23.00 mi15:09:043:53:2810:0913:01
10:24
+0:23
24M
24.00 mi15:19:094:03:3310:0910:05
10:05
-0:19
40K
24.85 mi15:28:084:12:3210:108:59
10:30
+0:25
25.2M
25.20 mi15:32:154:16:3910:114:07
11:56
+1:26
Finish
26.22 mi15:42:524:27:1610:1210:37
10:25
-1:31

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

9:29 /mi

Average Pace

10:12 /mi

Slowest Pace

11:57 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:37:02

36% of race

Time at Steady Pace

2:00:43

45% of race

Time at Slower Pace

49:31

19% of race

Average Pace: 10:12 /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 mi11:45:0329:279:2929:27
9:29
#22026
10K
6.21 mi12:15:0259:269:3429:59
9:39
#22507
15K
9.32 mi12:45:551:30:199:4130:53
9:56
#22847
20K
12.43 mi13:17:132:01:379:4731:18
10:04
#22897
Half
13.11 mi13:23:562:08:209:476:43
9:51
#22897
25K
15.53 mi13:48:512:33:159:5224:55
10:17
#22883
30K
18.64 mi14:22:183:06:4210:0133:27
10:46
#22828
20M
20.00 mi14:36:363:21:0010:0314:18
10:31
#22744
21M
21.00 mi14:48:333:32:5710:0811:57
11:57
#22748
35K
21.75 mi14:56:033:40:2710:087:30
10:01
#22701
23M
23.00 mi15:09:043:53:2810:0913:01
10:24
#22591
24M
24.00 mi15:19:094:03:3310:0910:05
10:05
#22532
40K
24.85 mi15:28:084:12:3210:108:59
10:30
#22481
25.2M
25.20 mi15:32:154:16:3910:114:07
11:56
#22481
Finish
26.22 mi15:42:524:27:1610:1210:37
10:25
#22496
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM75-79Seg. OverallSeg. MalesSeg. M75-79
5K3.11 mi3.11 mi22026131131311323395(Top 88%)13828(Top 91%)13828(Top 28220%)
10K6.21 mi3.10 mi22507-48113382-26913382-26922926(Top 86%)13604(Top 90%)13604(Top 27763%)
15K9.32 mi3.11 mi22847-34013567-18513567-18523395(Top 88%)13828(Top 91%)13828(Top 28220%)
20K12.43 mi3.11 mi22897-5013582-1513582-1523067(Top 87%)13662(Top 90%)13662(Top 27882%)
Half13.11 mi0.68 mi22897135821358222960(Top 86%)13603(Top 90%)13603(Top 27761%)
25K15.53 mi2.42 mi22883+1413562+2013562+2022787(Top 86%)13500(Top 89%)13500(Top 27551%)
30K18.64 mi3.11 mi22828+5513511+5113511+5122724(Top 85%)13391(Top 88%)13391(Top 27329%)
20M20.00 mi1.36 mi22744+8413460+5113460+5121787(Top 82%)12905(Top 85%)12905(Top 26337%)
21M21.00 mi1.00 mi22748-413453+713453+722673(Top 85%)13279(Top 88%)13279(Top 27100%)
35K21.75 mi0.75 mi22701+4713418+3513418+3521329(Top 80%)12642(Top 83%)12642(Top 25800%)
23M23.00 mi1.25 mi22591+11013365+5313365+5321059(Top 79%)12482(Top 82%)12482(Top 25473%)
24M24.00 mi1.00 mi22532+5913327+3813327+3821022(Top 79%)12444(Top 82%)12444(Top 25396%)
40K24.85 mi0.85 mi22481+5113301+2613301+2621229(Top 80%)12471(Top 82%)12471(Top 25451%)
25.2M25.20 mi0.35 mi2248113299+213299+222361(Top 84%)13018(Top 86%)13018(Top 26567%)
Finish26.22 mi1.02 mi22496-1513292+713292+722835(Top 86%)13249(Top 87%)13249(Top 27039%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 88%
×21stories
+97ft-345ft

Overall

23395

Males

13828

M75-79

13828

5K→10K

3.1 - 6.2 mi

Top 86%
×5stories
+79ft-138ft

Overall

22926

Males

13604

M75-79

13604

10K→15K

6.2 - 9.3 mi

Top 88%
×3stories
+67ft-78ft

Overall

23395

Males

13828

M75-79

13828

15K→20K

9.3 - 12.4 mi

Top 87%
×5stories
+106ft-86ft

Overall

23067

Males

13662

M75-79

13662

20K→Half

12.4 - 13.1 mi

Top 86%
×2stories
+19ft-37ft

Overall

22960

Males

13603

M75-79

13603

Half→25K

13.1 - 15.5 mi

Top 86%
×4stories
+66ft-88ft

Overall

22787

Males

13500

M75-79

13500

25K→30K

15.5 - 18.6 mi

Top 85%
×9stories
+181ft-148ft

Overall

22724

Males

13391

M75-79

13391

30K→20M

18.6 - 20.0 mi

Top 82%
×5stories
+64ft-50ft

Overall

21787

Males

12905

M75-79

12905

20M→21M

20.0 - 21.0 mi

Top 85%
×8stories
+106ft-24ft

Overall

22673

Males

13279

M75-79

13279

21M→35K

21.0 - 21.8 mi

Top 80%
×7stories
+17ft-86ft

Overall

21329

Males

12642

M75-79

12642

35K→23M

21.8 - 23.0 mi

Top 79%
×5stories
+23ft-63ft

Overall

21059

Males

12482

M75-79

12482

23M→24M

23.0 - 24.0 mi

Top 79%
×6stories
+12ft-82ft

Overall

21022

Males

12444

M75-79

12444

24M→40K

24.0 - 24.9 mi

Top 80%
×1story
+6ft-20ft

Overall

21229

Males

12471

M75-79

12471

40K→25.2M

24.9 - 25.2 mi

Top 84%
×1story
+13ft-16ft

Overall

22361

Males

13018

M75-79

13018

25.2M→Finish

25.2 - 26.2 mi

Top 86%
×2stories
+22ft-21ft

Overall

22835

Males

13249

M75-79

13249

Passing Analysis

Category:
Athletes Passed
1025
Passed By
1495
Net Change
-470
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22026
5K → 10K72553-481#22026#22507
10K → 15K57397-340#22507#22847
15K → 20K117167-50#22847#22897
20K → Half30300#22897#22897
Half → 25K10086+14#22897#22883
25K → 30K14691+55#22883#22828
30K → 20M10622+84#22828#22744
20M → 21M4549-4#22744#22748
21M → 35K525+47#22748#22701
35K → 23M12515+110#22701#22591
23M → 24M667+59#22591#22532
24M → 40K554+51#22532#22481
40K → 25.2M18180#22481#22481
25.2M → Finish3651-15#22481#22496
TOTALS10251495-470
📊

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