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BOSTON MARATHON 2023

Justin English

Bib: 30205•M

NJ

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M40-44)
#0 / 2241
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
28:28
Rank: #21083
Start → 5K
28:28 | 9:10/mi
10K· 6.21 mi
57:41
Rank: #21672 (-589)
5K → 10K
29:13 | 9:24/mi
15K· 9.32 mi
1:26:52
Rank: #21741 (-69)
10K → 15K
29:11 | 9:24/mi
20K· 12.43 mi
1:56:22
Rank: #21703 (+38)
15K → 20K
29:30 | 9:30/mi
Half· 13.11 mi
2:02:48
Rank: #21723 (-20)
20K → Half
6:26 | 9:26/mi
25K· 15.53 mi
2:26:13
Rank: #21624 (+99)
Half → 25K
23:25 | 9:39/mi
30K· 18.64 mi
2:57:17
Rank: #21512 (+112)
25K → 30K
31:04 | 10:00/mi
20M
3:10:53
Rank: #21436 (+76)
30K → 20M
13:36 | 10:00/mi
21M
3:21:24
Rank: #21312 (+124)
20M → 21M
10:31 | 10:31/mi
35K· 21.75 mi
3:28:34
Rank: #21266 (+46)
21M → 35K
7:10 | 9:35/mi
23M
3:41:06
Rank: #21167 (+99)
35K → 23M
12:32 | 10:01/mi
24M
3:50:56
Rank: #21120 (+47)
23M → 24M
9:50 | 9:50/mi
40K· 24.85 mi
3:59:27
Rank: #21062 (+58)
24M → 40K
8:31 | 9:58/mi
25.2M
4:03:11
Rank: #21048 (+14)
40K → 25.2M
3:44 | 10:50/mi
Finish· 26.22 mi
4:13:05
Rank: #21038 (+10)
25.2M → Finish
9:54 | 9:43/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:02:48
Pace9:22 /mi
2nd Half
Distance13.11 mi
Time2:10:17
Pace9:56 /mi
📊Positive Split: 6.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:25:4528:289:1028:28
9:10
-
10K
6.21 mi11:54:5857:419:1729:13
9:24
+0:14
15K
9.32 mi12:24:091:26:529:1929:11
9:24
0:00
20K
12.43 mi12:53:391:56:229:2229:30
9:30
+0:06
Half
13.11 mi13:00:052:02:489:226:26
9:26
-0:04
25K
15.53 mi13:23:302:26:139:2523:25
9:39
+0:13
30K
18.64 mi13:54:342:57:179:3131:04
10:00
+0:21
20M
20.00 mi14:08:103:10:539:3313:36
10:00
0:00
21M
21.00 mi14:18:413:21:249:3510:31
10:31
+0:31
35K
21.75 mi14:25:513:28:349:357:10
9:35
-0:56
23M
23.00 mi14:38:233:41:069:3712:32
10:01
+0:26
24M
24.00 mi14:48:133:50:569:379:50
9:50
-0:11
40K
24.85 mi14:56:443:59:279:388:31
9:58
+0:08
25.2M
25.20 mi15:00:284:03:119:393:44
10:50
+0:52
Finish
26.22 mi15:10:224:13:059:409:54
9:43
-1:07

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

9:10 /mi

Average Pace

9:40 /mi

Slowest Pace

10:50 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:58:50

94% of race

Time at Steady Pace

10:31

4% of race

Time at Slower Pace

3:44

1% of race

Average Pace: 9:39 /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 mi11:25:4528:289:1028:28
9:10
#21083
10K
6.21 mi11:54:5857:419:1729:13
9:24
#21672
15K
9.32 mi12:24:091:26:529:1929:11
9:24
#21741
20K
12.43 mi12:53:391:56:229:2229:30
9:30
#21703
Half
13.11 mi13:00:052:02:489:226:26
9:26
#21723
25K
15.53 mi13:23:302:26:139:2523:25
9:39
#21624
30K
18.64 mi13:54:342:57:179:3131:04
10:00
#21512
20M
20.00 mi14:08:103:10:539:3313:36
10:00
#21436
21M
21.00 mi14:18:413:21:249:3510:31
10:31
#21312
35K
21.75 mi14:25:513:28:349:357:10
9:35
#21266
23M
23.00 mi14:38:233:41:069:3712:32
10:01
#21167
24M
24.00 mi14:48:133:50:569:379:50
9:50
#21120
40K
24.85 mi14:56:443:59:279:388:31
9:58
#21062
25.2M
25.20 mi15:00:284:03:119:393:44
10:50
#21048
Finish
26.22 mi15:10:224:13:059:409:54
9:43
#21038
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi21083126471264721934(Top 82%)13160(Top 87%)13160(Top 587%)
10K6.21 mi3.10 mi21672-58912977-33012977-33022218(Top 83%)13263(Top 87%)13263(Top 592%)
15K9.32 mi3.11 mi21741-6913025-4813025-4821934(Top 82%)13160(Top 87%)13160(Top 587%)
20K12.43 mi3.11 mi21703+3813021+413021+421535(Top 81%)12971(Top 85%)12971(Top 579%)
Half13.11 mi0.68 mi21723-2013033-1213033-1221881(Top 82%)13133(Top 87%)13133(Top 586%)
25K15.53 mi2.42 mi21624+9912992+4112992+4121316(Top 80%)12845(Top 85%)12845(Top 573%)
30K18.64 mi3.11 mi21512+11212928+6412928+6421026(Top 79%)12645(Top 83%)12645(Top 564%)
20M20.00 mi1.36 mi21436+7612882+4612882+4620503(Top 77%)12348(Top 81%)12348(Top 551%)
21M21.00 mi1.00 mi21312+12412808+7412808+7419633(Top 74%)11890(Top 78%)11890(Top 531%)
35K21.75 mi0.75 mi21266+4612778+3012778+3020082(Top 75%)12083(Top 80%)12083(Top 539%)
23M23.00 mi1.25 mi21167+9912721+5712721+5720018(Top 75%)12032(Top 79%)12032(Top 537%)
24M24.00 mi1.00 mi21120+4712686+3512686+3520327(Top 76%)12137(Top 80%)12137(Top 542%)
40K24.85 mi0.85 mi21062+5812645+4112645+4119858(Top 75%)11859(Top 78%)11859(Top 529%)
25.2M25.20 mi0.35 mi21048+1412634+1112634+1120024(Top 75%)11932(Top 79%)11932(Top 532%)
Finish26.22 mi1.02 mi21038+1012626+812626+820838(Top 78%)12337(Top 81%)12337(Top 551%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 82%
×21stories
+97ft-345ft

Overall

21934

Males

13160

M40-44

13160

5K→10K

3.1 - 6.2 mi

Top 83%
×5stories
+79ft-138ft

Overall

22218

Males

13263

M40-44

13263

10K→15K

6.2 - 9.3 mi

Top 82%
×3stories
+67ft-78ft

Overall

21934

Males

13160

M40-44

13160

15K→20K

9.3 - 12.4 mi

Top 81%
×5stories
+106ft-86ft

Overall

21535

Males

12971

M40-44

12971

20K→Half

12.4 - 13.1 mi

Top 82%
×2stories
+19ft-37ft

Overall

21881

Males

13133

M40-44

13133

Half→25K

13.1 - 15.5 mi

Top 80%
×4stories
+66ft-88ft

Overall

21316

Males

12845

M40-44

12845

25K→30K

15.5 - 18.6 mi

Top 79%
×9stories
+181ft-148ft

Overall

21026

Males

12645

M40-44

12645

30K→20M

18.6 - 20.0 mi

Top 77%
×5stories
+64ft-50ft

Overall

20503

Males

12348

M40-44

12348

20M→21M

20.0 - 21.0 mi

Top 74%
×8stories
+106ft-24ft

Overall

19633

Males

11890

M40-44

11890

21M→35K

21.0 - 21.8 mi

Top 75%
×7stories
+17ft-86ft

Overall

20082

Males

12083

M40-44

12083

35K→23M

21.8 - 23.0 mi

Top 75%
×5stories
+23ft-63ft

Overall

20018

Males

12032

M40-44

12032

23M→24M

23.0 - 24.0 mi

Top 76%
×6stories
+12ft-82ft

Overall

20327

Males

12137

M40-44

12137

24M→40K

24.0 - 24.9 mi

Top 75%
×1story
+6ft-20ft

Overall

19858

Males

11859

M40-44

11859

40K→25.2M

24.9 - 25.2 mi

Top 75%
×1story
+13ft-16ft

Overall

20024

Males

11932

M40-44

11932

25.2M→Finish

25.2 - 26.2 mi

Top 78%
×2stories
+22ft-21ft

Overall

20838

Males

12337

M40-44

12337

Passing Analysis

Category:
Athletes Passed
1352
Passed By
1307
Net Change
+45
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21083
5K → 10K91680-589#21083#21672
10K → 15K137206-69#21672#21741
15K → 20K142104+38#21741#21703
20K → Half1535-20#21703#21723
Half → 25K14748+99#21723#21624
25K → 30K18573+112#21624#21512
30K → 20M11034+76#21512#21436
20M → 21M13410+124#21436#21312
21M → 35K5913+46#21312#21266
35K → 23M11819+99#21266#21167
23M → 24M6821+47#21167#21120
24M → 40K7618+58#21120#21062
40K → 25.2M239+14#21062#21048
25.2M → Finish4737+10#21048#21038
TOTALS13521307+45
📊

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