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BOSTON MARATHON 2023

John Barrett

Bib: 15317•M

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M50-54)
#0 / 2052
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:37
Rank: #10548
Start → 5K
23:37 | 7:36/mi
10K· 6.21 mi
49:09
Rank: #13663 (-3115)
5K → 10K
25:32 | 8:13/mi
15K· 9.32 mi
1:13:50
Rank: #13748 (-85)
10K → 15K
24:41 | 7:57/mi
20K· 12.43 mi
1:39:06
Rank: #13897 (-149)
15K → 20K
25:16 | 8:08/mi
Half· 13.11 mi
1:44:38
Rank: #13956 (-59)
20K → Half
5:32 | 8:07/mi
25K· 15.53 mi
2:05:25
Rank: #14453 (-497)
Half → 25K
20:47 | 8:34/mi
30K· 18.64 mi
2:32:15
Rank: #14571 (-118)
25K → 30K
26:50 | 8:38/mi
20M
2:44:34
Rank: #14763 (-192)
30K → 20M
12:19 | 9:04/mi
21M
2:54:06
Rank: #14820 (-57)
20M → 21M
9:32 | 9:32/mi
35K· 21.75 mi
3:00:46
Rank: #14931 (-111)
21M → 35K
6:40 | 8:55/mi
23M
3:12:04
Rank: #14991 (-60)
35K → 23M
11:18 | 9:02/mi
24M
3:20:39
Rank: #14966 (+25)
23M → 24M
8:35 | 8:35/mi
40K· 24.85 mi
3:28:01
Rank: #14907 (+59)
24M → 40K
7:22 | 8:37/mi
25.2M
3:31:11
Rank: #14875 (+32)
40K → 25.2M
3:10 | 9:11/mi
Finish· 26.22 mi
3:39:41
Rank: #14860 (+15)
25.2M → Finish
8:30 | 8:20/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:44:38
Pace7:59 /mi
2nd Half
Distance13.11 mi
Time1:55:03
Pace8:47 /mi
📊Positive Split: 10.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:53:2123:377:3623:37
7:36
-
10K
6.21 mi11:18:5349:097:5525:32
8:13
+0:37
15K
9.32 mi11:43:341:13:507:5524:41
7:57
-0:16
20K
12.43 mi12:08:501:39:067:5825:16
8:08
+0:11
Half
13.11 mi12:14:221:44:387:595:32
8:07
-0:01
25K
15.53 mi12:35:092:05:258:0420:47
8:34
+0:27
30K
18.64 mi13:01:592:32:158:1026:50
8:38
+0:04
20M
20.00 mi13:14:182:44:348:1412:19
9:04
+0:26
21M
21.00 mi13:23:502:54:068:179:32
9:32
+0:28
35K
21.75 mi13:30:303:00:468:196:40
8:55
-0:37
23M
23.00 mi13:41:483:12:048:2111:18
9:02
+0:07
24M
24.00 mi13:50:233:20:398:228:35
8:35
-0:27
40K
24.85 mi13:57:453:28:018:227:22
8:37
+0:02
25.2M
25.20 mi14:00:553:31:118:233:10
9:11
+0:34
Finish
26.22 mi14:09:253:39:418:238:30
8:20
-0:51

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

7:36 /mi

Average Pace

8:23 /mi

Slowest Pace

9:32 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:44:38

48% of race

Time at Steady Pace

1:12:04

33% of race

Time at Slower Pace

42:59

20% of race

Average Pace: 8:23 /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 mi10:53:2123:377:3623:37
7:36
#10548
10K
6.21 mi11:18:5349:097:5525:32
8:13
#13663
15K
9.32 mi11:43:341:13:507:5524:41
7:57
#13748
20K
12.43 mi12:08:501:39:067:5825:16
8:08
#13897
Half
13.11 mi12:14:221:44:387:595:32
8:07
#13956
25K
15.53 mi12:35:092:05:258:0420:47
8:34
#14453
30K
18.64 mi13:01:592:32:158:1026:50
8:38
#14571
20M
20.00 mi13:14:182:44:348:1412:19
9:04
#14763
21M
21.00 mi13:23:502:54:068:179:32
9:32
#14820
35K
21.75 mi13:30:303:00:468:196:40
8:55
#14931
23M
23.00 mi13:41:483:12:048:2111:18
9:02
#14991
24M
24.00 mi13:50:233:20:398:228:35
8:35
#14966
40K
24.85 mi13:57:453:28:018:227:22
8:37
#14907
25.2M
25.20 mi14:00:553:31:118:233:10
9:11
#14875
Finish
26.22 mi14:09:253:39:418:238:30
8:20
#14860
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi105488430843013942(Top 52%)9878(Top 65%)9878(Top 481%)
10K6.21 mi3.10 mi13663-31159801-13719801-137116376(Top 62%)10855(Top 72%)10855(Top 529%)
15K9.32 mi3.11 mi13748-859820-199820-1913942(Top 52%)9878(Top 65%)9878(Top 481%)
20K12.43 mi3.11 mi13897-1499859-399859-3914441(Top 54%)10057(Top 66%)10057(Top 490%)
Half13.11 mi0.68 mi13956-599879-209879-2015167(Top 57%)10360(Top 68%)10360(Top 505%)
25K15.53 mi2.42 mi14453-49710062-18310062-18316622(Top 62%)10809(Top 71%)10809(Top 527%)
30K18.64 mi3.11 mi14571-11810068-610068-615136(Top 57%)10095(Top 67%)10095(Top 492%)
20M20.00 mi1.36 mi14763-19210130-6210130-6216851(Top 63%)10764(Top 71%)10764(Top 525%)
21M21.00 mi1.00 mi14820-5710126+410126+416092(Top 60%)10389(Top 68%)10389(Top 506%)
35K21.75 mi0.75 mi14931-11110143-1710143-1717466(Top 66%)10904(Top 72%)10904(Top 531%)
23M23.00 mi1.25 mi14991-6010144-110144-116161(Top 61%)10308(Top 68%)10308(Top 502%)
24M24.00 mi1.00 mi14966+2510112+3210112+3214946(Top 56%)9724(Top 64%)9724(Top 474%)
40K24.85 mi0.85 mi14907+5910066+4610066+4614037(Top 53%)9259(Top 61%)9259(Top 451%)
25.2M25.20 mi0.35 mi14875+3210042+2410042+2413515(Top 51%)9008(Top 59%)9008(Top 439%)
Finish26.22 mi1.02 mi14860+1510016+2610016+2614326(Top 54%)9398(Top 62%)9398(Top 458%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 52%
×21stories
+97ft-345ft

Overall

13942

Males

9878

M50-54

9878

5K→10K

3.1 - 6.2 mi

Top 62%
×5stories
+79ft-138ft

Overall

16376

Males

10855

M50-54

10855

10K→15K

6.2 - 9.3 mi

Top 52%
×3stories
+67ft-78ft

Overall

13942

Males

9878

M50-54

9878

15K→20K

9.3 - 12.4 mi

Top 54%
×5stories
+106ft-86ft

Overall

14441

Males

10057

M50-54

10057

20K→Half

12.4 - 13.1 mi

Top 57%
×2stories
+19ft-37ft

Overall

15167

Males

10360

M50-54

10360

Half→25K

13.1 - 15.5 mi

Top 62%
×4stories
+66ft-88ft

Overall

16622

Males

10809

M50-54

10809

25K→30K

15.5 - 18.6 mi

Top 57%
×9stories
+181ft-148ft

Overall

15136

Males

10095

M50-54

10095

30K→20M

18.6 - 20.0 mi

Top 63%
×5stories
+64ft-50ft

Overall

16851

Males

10764

M50-54

10764

20M→21M

20.0 - 21.0 mi

Top 60%
×8stories
+106ft-24ft

Overall

16092

Males

10389

M50-54

10389

21M→35K

21.0 - 21.8 mi

Top 66%
×7stories
+17ft-86ft

Overall

17466

Males

10904

M50-54

10904

35K→23M

21.8 - 23.0 mi

Top 61%
×5stories
+23ft-63ft

Overall

16161

Males

10308

M50-54

10308

23M→24M

23.0 - 24.0 mi

Top 56%
×6stories
+12ft-82ft

Overall

14946

Males

9724

M50-54

9724

24M→40K

24.0 - 24.9 mi

Top 53%
×1story
+6ft-20ft

Overall

14037

Males

9259

M50-54

9259

40K→25.2M

24.9 - 25.2 mi

Top 51%
×1story
+13ft-16ft

Overall

13515

Males

9008

M50-54

9008

25.2M→Finish

25.2 - 26.2 mi

Top 54%
×2stories
+22ft-21ft

Overall

14326

Males

9398

M50-54

9398

Passing Analysis

Category:
Athletes Passed
940
Passed By
5252
Net Change
-4312
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10548
5K → 10K43119-3115#10548#13663
10K → 15K146231-85#13663#13748
15K → 20K134283-149#13748#13897
20K → Half1574-59#13897#13956
Half → 25K41538-497#13956#14453
25K → 30K129247-118#14453#14571
30K → 20M35227-192#14571#14763
20M → 21M66123-57#14763#14820
21M → 35K24135-111#14820#14931
35K → 23M66126-60#14931#14991
23M → 24M7247+25#14991#14966
24M → 40K8425+59#14966#14907
40K → 25.2M4715+32#14907#14875
25.2M → Finish7762+15#14875#14860
TOTALS9405252-4312
📊

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