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BOSTON MARATHON 2023

Jeffrey Churchward

Bib: 21714•M

ON

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 36%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
26:38
Rank: #18044
Start → 5K
26:38 | 8:34/mi
10K· 6.21 mi
53:11
Rank: #18246 (-202)
5K → 10K
26:33 | 8:33/mi
15K· 9.32 mi
1:20:12
Rank: #18496 (-250)
10K → 15K
27:01 | 8:42/mi
20K· 12.43 mi
1:48:18
Rank: #18867 (-371)
15K → 20K
28:06 | 9:03/mi
Half· 13.11 mi
1:54:24
Rank: #18949 (-82)
20K → Half
6:06 | 8:56/mi
25K· 15.53 mi
2:16:30
Rank: #19020 (-71)
Half → 25K
22:06 | 9:07/mi
30K· 18.64 mi
2:45:58
Rank: #19121 (-101)
25K → 30K
29:28 | 9:29/mi
20M
2:58:45
Rank: #19063 (+58)
30K → 20M
12:47 | 9:24/mi
21M
3:08:33
Rank: #18957 (+106)
20M → 21M
9:48 | 9:48/mi
35K· 21.75 mi
3:15:18
Rank: #18912 (+45)
21M → 35K
6:45 | 9:01/mi
23M
3:26:45
Rank: #18771 (+141)
35K → 23M
11:27 | 9:09/mi
24M
3:35:34
Rank: #18665 (+106)
23M → 24M
8:49 | 8:49/mi
40K· 24.85 mi
3:43:10
Rank: #18545 (+120)
24M → 40K
7:36 | 8:53/mi
25.2M
3:46:29
Rank: #18494 (+51)
40K → 25.2M
3:19 | 9:37/mi
Finish· 26.22 mi
3:55:17
Rank: #18424 (+70)
25.2M → Finish
8:48 | 8:38/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:54:24
Pace8:44 /mi
2nd Half
Distance13.11 mi
Time2:00:53
Pace9:13 /mi
📊Positive Split: 5.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:20:0726:388:3426:38
8:34
-
10K
6.21 mi11:46:4053:118:3426:33
8:33
-0:01
15K
9.32 mi12:13:411:20:128:3627:01
8:42
+0:09
20K
12.43 mi12:41:471:48:188:4328:06
9:03
+0:21
Half
13.11 mi12:47:531:54:248:446:06
8:56
-0:07
25K
15.53 mi13:09:592:16:308:4722:06
9:07
+0:11
30K
18.64 mi13:39:272:45:588:5429:28
9:29
+0:22
20M
20.00 mi13:52:142:58:458:5612:47
9:24
-0:05
21M
21.00 mi14:02:023:08:338:599:48
9:48
+0:24
35K
21.75 mi14:08:473:15:188:596:45
9:01
-0:47
23M
23.00 mi14:20:143:26:458:5911:27
9:09
+0:08
24M
24.00 mi14:29:033:35:348:598:49
8:49
-0:20
40K
24.85 mi14:36:393:43:108:597:36
8:53
+0:04
25.2M
25.20 mi14:39:583:46:298:593:19
9:37
+0:44
Finish
26.22 mi14:48:463:55:178:598:48
8:38
-0:59

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

8:33 /mi

Average Pace

8:59 /mi

Slowest Pace

9:48 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:12:42

82% of race

Time at Steady Pace

42:35

18% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:58 /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 mi11:20:0726:388:3426:38
8:34
#18044
10K
6.21 mi11:46:4053:118:3426:33
8:33
#18246
15K
9.32 mi12:13:411:20:128:3627:01
8:42
#18496
20K
12.43 mi12:41:471:48:188:4328:06
9:03
#18867
Half
13.11 mi12:47:531:54:248:446:06
8:56
#18949
25K
15.53 mi13:09:592:16:308:4722:06
9:07
#19020
30K
18.64 mi13:39:272:45:588:5429:28
9:29
#19121
20M
20.00 mi13:52:142:58:458:5612:47
9:24
#19063
21M
21.00 mi14:02:023:08:338:599:48
9:48
#18957
35K
21.75 mi14:08:473:15:188:596:45
9:01
#18912
23M
23.00 mi14:20:143:26:458:5911:27
9:09
#18771
24M
24.00 mi14:29:033:35:348:598:49
8:49
#18665
40K
24.85 mi14:36:393:43:108:597:36
8:53
#18545
25.2M
25.20 mi14:39:583:46:298:593:19
9:37
#18494
Finish
26.22 mi14:48:463:55:178:598:48
8:38
#18424
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM65-69Seg. OverallSeg. MalesSeg. M65-69
5K3.11 mi3.11 mi18044114381143818946(Top 71%)11855(Top 78%)11855(Top 2159%)
10K6.21 mi3.10 mi18246-20211560-12211560-12218521(Top 70%)11719(Top 77%)11719(Top 2135%)
15K9.32 mi3.11 mi18496-25011662-10211662-10218946(Top 71%)11855(Top 78%)11855(Top 2159%)
20K12.43 mi3.11 mi18867-37111806-14411806-14419893(Top 75%)12252(Top 81%)12252(Top 2232%)
Half13.11 mi0.68 mi18949-8211838-3211838-3220127(Top 76%)12354(Top 81%)12354(Top 2250%)
25K15.53 mi2.42 mi19020-7111868-3011868-3019477(Top 73%)12042(Top 79%)12042(Top 2193%)
30K18.64 mi3.11 mi19121-10111891-2311891-2319364(Top 73%)11947(Top 79%)11947(Top 2176%)
20M20.00 mi1.36 mi19063+5811854+3711854+3718472(Top 69%)11439(Top 75%)11439(Top 2084%)
21M21.00 mi1.00 mi18957+10611792+6211792+6217249(Top 65%)10897(Top 72%)10897(Top 1985%)
35K21.75 mi0.75 mi18912+4511764+2811764+2817975(Top 68%)11128(Top 73%)11128(Top 2027%)
23M23.00 mi1.25 mi18771+14111696+6811696+6816756(Top 63%)10577(Top 70%)10577(Top 1927%)
24M24.00 mi1.00 mi18665+10611642+5411642+5416285(Top 61%)10309(Top 68%)10309(Top 1878%)
40K24.85 mi0.85 mi18545+12011580+6211580+6215548(Top 58%)9931(Top 65%)9931(Top 1809%)
25.2M25.20 mi0.35 mi18494+5111554+2611554+2615721(Top 59%)10009(Top 66%)10009(Top 1823%)
Finish26.22 mi1.02 mi18424+7011509+4511509+4516155(Top 61%)10237(Top 67%)10237(Top 1865%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 71%
×21stories
+97ft-345ft

Overall

18946

Males

11855

M65-69

11855

5K→10K

3.1 - 6.2 mi

Top 70%
×5stories
+79ft-138ft

Overall

18521

Males

11719

M65-69

11719

10K→15K

6.2 - 9.3 mi

Top 71%
×3stories
+67ft-78ft

Overall

18946

Males

11855

M65-69

11855

15K→20K

9.3 - 12.4 mi

Top 75%
×5stories
+106ft-86ft

Overall

19893

Males

12252

M65-69

12252

20K→Half

12.4 - 13.1 mi

Top 76%
×2stories
+19ft-37ft

Overall

20127

Males

12354

M65-69

12354

Half→25K

13.1 - 15.5 mi

Top 73%
×4stories
+66ft-88ft

Overall

19477

Males

12042

M65-69

12042

25K→30K

15.5 - 18.6 mi

Top 73%
×9stories
+181ft-148ft

Overall

19364

Males

11947

M65-69

11947

30K→20M

18.6 - 20.0 mi

Top 69%
×5stories
+64ft-50ft

Overall

18472

Males

11439

M65-69

11439

20M→21M

20.0 - 21.0 mi

Top 65%
×8stories
+106ft-24ft

Overall

17249

Males

10897

M65-69

10897

21M→35K

21.0 - 21.8 mi

Top 68%
×7stories
+17ft-86ft

Overall

17975

Males

11128

M65-69

11128

35K→23M

21.8 - 23.0 mi

Top 63%
×5stories
+23ft-63ft

Overall

16756

Males

10577

M65-69

10577

23M→24M

23.0 - 24.0 mi

Top 61%
×6stories
+12ft-82ft

Overall

16285

Males

10309

M65-69

10309

24M→40K

24.0 - 24.9 mi

Top 58%
×1story
+6ft-20ft

Overall

15548

Males

9931

M65-69

9931

40K→25.2M

24.9 - 25.2 mi

Top 59%
×1story
+13ft-16ft

Overall

15721

Males

10009

M65-69

10009

25.2M→Finish

25.2 - 26.2 mi

Top 61%
×2stories
+22ft-21ft

Overall

16155

Males

10237

M65-69

10237

Passing Analysis

Category:
Athletes Passed
1486
Passed By
1866
Net Change
-380
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18044
5K → 10K215417-202#18044#18246
10K → 15K105355-250#18246#18496
15K → 20K68439-371#18496#18867
20K → Half890-82#18867#18949
Half → 25K105176-71#18949#19020
25K → 30K129230-101#19020#19121
30K → 20M11557+58#19121#19063
20M → 21M13226+106#19063#18957
21M → 35K6217+45#18957#18912
35K → 23M15514+141#18912#18771
23M → 24M12115+106#18771#18665
24M → 40K1277+120#18665#18545
40K → 25.2M554+51#18545#18494
25.2M → Finish8919+70#18494#18424
TOTALS14861866-380
📊

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