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BOSTON MARATHON 2023

John Kingsbury

Bib: 12758•M

UT

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 37%
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Top 41%
Division (M45-49)
#0 / 2252
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:18
Rank: #7366
Start → 5K
22:18 | 7:11/mi
10K· 6.21 mi
43:34
Rank: #6569 (+797)
5K → 10K
21:16 | 6:51/mi
15K· 9.32 mi
1:06:41
Rank: #7448 (-879)
10K → 15K
23:07 | 7:26/mi
20K· 12.43 mi
1:30:09
Rank: #7926 (-478)
15K → 20K
23:28 | 7:33/mi
Half· 13.11 mi
1:35:07
Rank: #7949 (-23)
20K → Half
4:58 | 7:17/mi
25K· 15.53 mi
1:54:31
Rank: #8611 (-662)
Half → 25K
19:24 | 8:00/mi
30K· 18.64 mi
2:20:43
Rank: #9578 (-967)
25K → 30K
26:12 | 8:26/mi
20M
2:32:10
Rank: #9799 (-221)
30K → 20M
11:27 | 8:26/mi
21M
2:41:21
Rank: #10076 (-277)
20M → 21M
9:11 | 9:11/mi
35K· 21.75 mi
2:47:04
Rank: #10041 (+35)
21M → 35K
5:43 | 7:38/mi
23M
2:57:19
Rank: #10085 (-44)
35K → 23M
10:15 | 8:11/mi
24M
3:05:00
Rank: #10014 (+71)
23M → 24M
7:41 | 7:41/mi
40K· 24.85 mi
3:12:05
Rank: #10058 (-44)
24M → 40K
7:05 | 8:17/mi
25.2M
3:15:04
Rank: #10050 (+8)
40K → 25.2M
2:59 | 8:39/mi
Finish· 26.22 mi
3:22:36
Rank: #9916 (+134)
25.2M → Finish
7:32 | 7:24/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:35:07
Pace7:15 /mi
2nd Half
Distance13.11 mi
Time1:47:29
Pace8:12 /mi
📊Positive Split: 13.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:14:5122:187:1122:18
7:11
-
10K
6.21 mi11:36:0743:347:0121:16
6:51
-0:20
15K
9.32 mi11:59:141:06:417:0923:07
7:26
+0:35
20K
12.43 mi12:22:421:30:097:1523:28
7:33
+0:07
Half
13.11 mi12:27:401:35:077:154:58
7:17
-0:16
25K
15.53 mi12:47:041:54:317:2219:24
8:00
+0:43
30K
18.64 mi13:13:162:20:437:3326:12
8:26
+0:26
20M
20.00 mi13:24:432:32:107:3611:27
8:26
0:00
21M
21.00 mi13:33:542:41:217:419:11
9:11
+0:45
35K
21.75 mi13:39:372:47:047:415:43
7:38
-1:33
23M
23.00 mi13:49:522:57:197:4310:15
8:11
+0:33
24M
24.00 mi13:57:333:05:007:437:41
7:41
-0:30
40K
24.85 mi14:04:383:12:057:447:05
8:17
+0:36
25.2M
25.20 mi14:07:373:15:047:442:59
8:39
+0:22
Finish
26.22 mi14:15:093:22:367:447:32
7:24
-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

6:51 /mi

Average Pace

7:44 /mi

Slowest Pace

9:11 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

48:32

24% of race

Time at Steady Pace

1:07:31

33% of race

Time at Slower Pace

1:26:33

43% of race

Average Pace: 7:44 /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 mi11:14:5122:187:1122:18
7:11
#7366
10K
6.21 mi11:36:0743:347:0121:16
6:51
#6569
15K
9.32 mi11:59:141:06:417:0923:07
7:26
#7448
20K
12.43 mi12:22:421:30:097:1523:28
7:33
#7926
Half
13.11 mi12:27:401:35:077:154:58
7:17
#7949
25K
15.53 mi12:47:041:54:317:2219:24
8:00
#8611
30K
18.64 mi13:13:162:20:437:3326:12
8:26
#9578
20M
20.00 mi13:24:432:32:107:3611:27
8:26
#9799
21M
21.00 mi13:33:542:41:217:419:11
9:11
#10076
35K
21.75 mi13:39:372:47:047:415:43
7:38
#10041
23M
23.00 mi13:49:522:57:197:4310:15
8:11
#10085
24M
24.00 mi13:57:333:05:007:437:41
7:41
#10014
40K
24.85 mi14:04:383:12:057:447:05
8:17
#10058
25.2M
25.20 mi14:07:373:15:047:442:59
8:39
#10050
Finish
26.22 mi14:15:093:22:367:447:32
7:24
#9916
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi7366655365539682(Top 36%)7968(Top 53%)7968(Top 354%)
10K6.21 mi3.10 mi6569+7975926+6275926+6275713(Top 21%)5234(Top 34%)5234(Top 232%)
15K9.32 mi3.11 mi7448-8796590-6646590-6649682(Top 36%)7968(Top 53%)7968(Top 354%)
20K12.43 mi3.11 mi7926-4786892-3026892-3029721(Top 37%)7917(Top 52%)7917(Top 352%)
Half13.11 mi0.68 mi7949-236901-96901-98446(Top 32%)7185(Top 47%)7185(Top 319%)
25K15.53 mi2.42 mi8611-6627301-4007301-40012720(Top 48%)9221(Top 61%)9221(Top 409%)
30K18.64 mi3.11 mi9578-9677855-5547855-55413874(Top 52%)9599(Top 63%)9599(Top 426%)
20M20.00 mi1.36 mi9799-2217958-1037958-10313137(Top 49%)9182(Top 61%)9182(Top 408%)
21M21.00 mi1.00 mi10076-2778080-1228080-12214359(Top 54%)9641(Top 64%)9641(Top 428%)
35K21.75 mi0.75 mi10041+358036+448036+449532(Top 36%)7369(Top 49%)7369(Top 327%)
23M23.00 mi1.25 mi10085-448032+48032+411075(Top 42%)8006(Top 53%)8006(Top 356%)
24M24.00 mi1.00 mi10014+717957+757957+758960(Top 34%)6874(Top 45%)6874(Top 305%)
40K24.85 mi0.85 mi10058-447958-17958-111882(Top 45%)8261(Top 54%)8261(Top 367%)
25.2M25.20 mi0.35 mi10050+87938+207938+2010393(Top 39%)7491(Top 49%)7491(Top 333%)
Finish26.22 mi1.02 mi9916+1347847+917847+917734(Top 29%)6020(Top 40%)6020(Top 267%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 36%
×21stories
+97ft-345ft

Overall

9682

Males

7968

M45-49

7968

5K→10K

3.1 - 6.2 mi

Top 21%
×5stories
+79ft-138ft

Overall

5713

Males

5234

M45-49

5234

10K→15K

6.2 - 9.3 mi

Top 36%
×3stories
+67ft-78ft

Overall

9682

Males

7968

M45-49

7968

15K→20K

9.3 - 12.4 mi

Top 37%
×5stories
+106ft-86ft

Overall

9721

Males

7917

M45-49

7917

20K→Half

12.4 - 13.1 mi

Top 32%
×2stories
+19ft-37ft

Overall

8446

Males

7185

M45-49

7185

Half→25K

13.1 - 15.5 mi

Top 48%
×4stories
+66ft-88ft

Overall

12720

Males

9221

M45-49

9221

25K→30K

15.5 - 18.6 mi

Top 52%
×9stories
+181ft-148ft

Overall

13874

Males

9599

M45-49

9599

30K→20M

18.6 - 20.0 mi

Top 49%
×5stories
+64ft-50ft

Overall

13137

Males

9182

M45-49

9182

20M→21M

20.0 - 21.0 mi

Top 54%
×8stories
+106ft-24ft

Overall

14359

Males

9641

M45-49

9641

21M→35K

21.0 - 21.8 mi

Top 36%
×7stories
+17ft-86ft

Overall

9532

Males

7369

M45-49

7369

35K→23M

21.8 - 23.0 mi

Top 42%
×5stories
+23ft-63ft

Overall

11075

Males

8006

M45-49

8006

23M→24M

23.0 - 24.0 mi

Top 34%
×6stories
+12ft-82ft

Overall

8960

Males

6874

M45-49

6874

24M→40K

24.0 - 24.9 mi

Top 45%
×1story
+6ft-20ft

Overall

11882

Males

8261

M45-49

8261

40K→25.2M

24.9 - 25.2 mi

Top 39%
×1story
+13ft-16ft

Overall

10393

Males

7491

M45-49

7491

25.2M→Finish

25.2 - 26.2 mi

Top 29%
×2stories
+22ft-21ft

Overall

7734

Males

6020

M45-49

6020

Passing Analysis

Category:
Athletes Passed
1456*
Passed By
4003
Net Change
-2550
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7366
5K → 10K81013+797#7366#6569
10K → 15K9888-879#6569#7448
15K → 20K32510-478#7448#7926
20K → Half1134-23#7926#7949
Half → 25K10672-662#7949#8611
25K → 30K27994-967#8611#9578
30K → 20M39260-221#9578#9799
20M → 21M30305-277#9799#10076
21M → 35K6934+35#10076#10041
35K → 23M66110-44#10041#10085
23M → 24M10634+71#10085#10014
24M → 40K4690-44#10014#10058
40K → 25.2M38*30+8#10058#10050
25.2M → Finish163*29+134#10050#9916
TOTALS1456*4003-2550

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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