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BOSTON MARATHON 2023

Samuel Johnson

Bib: 12883•M

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 29%
Gender (Male)
#0 / 15176
Top 43%
Masters (Masters Men)
#0 / 9891
Top 30%
Division (M50-54)
#0 / 2052
Top 25%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:48
Rank: #8362
Start → 5K
22:48 | 7:20/mi
10K· 6.21 mi
44:38
Rank: #7646 (+716)
5K → 10K
21:50 | 7:02/mi
15K· 9.32 mi
1:06:48
Rank: #7536 (+110)
10K → 15K
22:10 | 7:08/mi
20K· 12.43 mi
1:29:22
Rank: #7478 (+58)
15K → 20K
22:34 | 7:16/mi
Half· 13.11 mi
1:34:15
Rank: #7477 (+1)
20K → Half
4:53 | 7:09/mi
25K· 15.53 mi
1:52:08
Rank: #7499 (-22)
Half → 25K
17:53 | 7:23/mi
30K· 18.64 mi
2:15:48
Rank: #7521 (-22)
25K → 30K
23:40 | 7:37/mi
20M
2:26:15
Rank: #7532 (-11)
30K → 20M
10:27 | 7:41/mi
21M
2:34:24
Rank: #7537 (-5)
20M → 21M
8:09 | 8:09/mi
35K· 21.75 mi
2:40:02
Rank: #7559 (-22)
21M → 35K
5:38 | 7:32/mi
23M
2:49:49
Rank: #7559
35K → 23M
9:47 | 7:49/mi
24M
2:57:37
Rank: #7623 (-64)
23M → 24M
7:48 | 7:48/mi
40K· 24.85 mi
3:04:16
Rank: #7640 (-17)
24M → 40K
6:39 | 7:47/mi
25.2M
3:07:07
Rank: #7652 (-12)
40K → 25.2M
2:51 | 8:16/mi
Finish· 26.22 mi
3:14:32
Rank: #7599 (+53)
25.2M → Finish
7:25 | 7:17/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:34:15
Pace7:11 /mi
2nd Half
Distance13.11 mi
Time1:40:17
Pace7:39 /mi
📊Positive Split: 6.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:1122:487:2022:48
7:20
-
10K
6.21 mi11:12:0144:387:1121:50
7:02
-0:18
15K
9.32 mi11:34:111:06:487:1022:10
7:08
+0:06
20K
12.43 mi11:56:451:29:227:1122:34
7:16
+0:08
Half
13.11 mi12:01:381:34:157:114:53
7:09
-0:07
25K
15.53 mi12:19:311:52:087:1317:53
7:23
+0:14
30K
18.64 mi12:43:112:15:487:1723:40
7:37
+0:14
20M
20.00 mi12:53:382:26:157:1910:27
7:41
+0:04
21M
21.00 mi13:01:472:34:247:218:09
8:09
+0:28
35K
21.75 mi13:07:252:40:027:225:38
7:32
-0:37
23M
23.00 mi13:17:122:49:497:239:47
7:49
+0:17
24M
24.00 mi13:25:002:57:377:247:48
7:48
-0:01
40K
24.85 mi13:31:393:04:167:256:39
7:47
-0:01
25.2M
25.20 mi13:34:303:07:077:262:51
8:16
+0:29
Finish
26.22 mi13:41:553:14:327:257:25
7:17
-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

7:02 /mi

Average Pace

7:25 /mi

Slowest Pace

8:16 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:39:18

82% of race

Time at Steady Pace

35:14

18% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:25 /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 mi10:50:1122:487:2022:48
7:20
#8362
10K
6.21 mi11:12:0144:387:1121:50
7:02
#7646
15K
9.32 mi11:34:111:06:487:1022:10
7:08
#7536
20K
12.43 mi11:56:451:29:227:1122:34
7:16
#7478
Half
13.11 mi12:01:381:34:157:114:53
7:09
#7477
25K
15.53 mi12:19:311:52:087:1317:53
7:23
#7499
30K
18.64 mi12:43:112:15:487:1723:40
7:37
#7521
20M
20.00 mi12:53:382:26:157:1910:27
7:41
#7532
21M
21.00 mi13:01:472:34:247:218:09
8:09
#7537
35K
21.75 mi13:07:252:40:027:225:38
7:32
#7559
23M
23.00 mi13:17:122:49:497:239:47
7:49
#7559
24M
24.00 mi13:25:002:57:377:247:48
7:48
#7623
40K
24.85 mi13:31:393:04:167:256:39
7:47
#7640
25.2M
25.20 mi13:34:303:07:077:262:51
8:16
#7652
Finish
26.22 mi13:41:553:14:327:257:25
7:17
#7599
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi8362720672067371(Top 28%)6512(Top 43%)6512(Top 317%)
10K6.21 mi3.10 mi7646+7166737+4696737+4697007(Top 26%)6247(Top 41%)6247(Top 304%)
15K9.32 mi3.11 mi7536+1106642+956642+957371(Top 28%)6512(Top 43%)6512(Top 317%)
20K12.43 mi3.11 mi7478+586595+476595+477525(Top 28%)6577(Top 43%)6577(Top 321%)
Half13.11 mi0.68 mi7477+16588+76588+77542(Top 28%)6601(Top 43%)6601(Top 322%)
25K15.53 mi2.42 mi7499-226598-106598-107796(Top 29%)6666(Top 44%)6666(Top 325%)
30K18.64 mi3.11 mi7521-226568+306568+308046(Top 30%)6706(Top 44%)6706(Top 327%)
20M20.00 mi1.36 mi7532-116550+186550+188082(Top 30%)6642(Top 44%)6642(Top 324%)
21M21.00 mi1.00 mi7537-56540+106540+108277(Top 31%)6629(Top 44%)6629(Top 323%)
35K21.75 mi0.75 mi7559-226547-76547-78683(Top 33%)6900(Top 45%)6900(Top 336%)
23M23.00 mi1.25 mi75596529+186529+188485(Top 32%)6686(Top 44%)6686(Top 326%)
24M24.00 mi1.00 mi7623-646552-236552-239752(Top 37%)7258(Top 48%)7258(Top 354%)
40K24.85 mi0.85 mi7640-176542+106542+108487(Top 32%)6539(Top 43%)6539(Top 319%)
25.2M25.20 mi0.35 mi7652-126539+36539+37998(Top 30%)6158(Top 41%)6158(Top 300%)
Finish26.22 mi1.02 mi7599+536483+566483+566945(Top 26%)5528(Top 36%)5528(Top 269%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 28%
×21stories
+97ft-345ft

Overall

7371

Males

6512

M50-54

6512

5K→10K

3.1 - 6.2 mi

Top 26%
×5stories
+79ft-138ft

Overall

7007

Males

6247

M50-54

6247

10K→15K

6.2 - 9.3 mi

Top 28%
×3stories
+67ft-78ft

Overall

7371

Males

6512

M50-54

6512

15K→20K

9.3 - 12.4 mi

Top 28%
×5stories
+106ft-86ft

Overall

7525

Males

6577

M50-54

6577

20K→Half

12.4 - 13.1 mi

Top 28%
×2stories
+19ft-37ft

Overall

7542

Males

6601

M50-54

6601

Half→25K

13.1 - 15.5 mi

Top 29%
×4stories
+66ft-88ft

Overall

7796

Males

6666

M50-54

6666

25K→30K

15.5 - 18.6 mi

Top 30%
×9stories
+181ft-148ft

Overall

8046

Males

6706

M50-54

6706

30K→20M

18.6 - 20.0 mi

Top 30%
×5stories
+64ft-50ft

Overall

8082

Males

6642

M50-54

6642

20M→21M

20.0 - 21.0 mi

Top 31%
×8stories
+106ft-24ft

Overall

8277

Males

6629

M50-54

6629

21M→35K

21.0 - 21.8 mi

Top 33%
×7stories
+17ft-86ft

Overall

8683

Males

6900

M50-54

6900

35K→23M

21.8 - 23.0 mi

Top 32%
×5stories
+23ft-63ft

Overall

8485

Males

6686

M50-54

6686

23M→24M

23.0 - 24.0 mi

Top 37%
×6stories
+12ft-82ft

Overall

9752

Males

7258

M50-54

7258

24M→40K

24.0 - 24.9 mi

Top 32%
×1story
+6ft-20ft

Overall

8487

Males

6539

M50-54

6539

40K→25.2M

24.9 - 25.2 mi

Top 30%
×1story
+13ft-16ft

Overall

7998

Males

6158

M50-54

6158

25.2M→Finish

25.2 - 26.2 mi

Top 26%
×2stories
+22ft-21ft

Overall

6945

Males

5528

M50-54

5528

Passing Analysis

Category:
Athletes Passed
1771
Passed By
1008
Net Change
+763
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8362
5K → 10K75539+716#8362#7646
10K → 15K19787+110#7646#7536
15K → 20K14284+58#7536#7478
20K → Half2423+1#7478#7477
Half → 25K7597-22#7477#7499
25K → 30K127149-22#7499#7521
30K → 20M7687-11#7521#7532
20M → 21M5762-5#7532#7537
21M → 35K3254-22#7537#7559
35K → 23M80800#7559#7559
23M → 24M42106-64#7559#7623
24M → 40K5370-17#7623#7640
40K → 25.2M2335-12#7640#7652
25.2M → Finish8835+53#7652#7599
TOTALS17711008+763
📊

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