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BOSTON MARATHON 2023

David Johnson

Bib: 8350•M

UT

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 23%
Gender (Male)
#0 / 15176
Top 36%
Masters (Masters Men)
#0 / 9891
Top 22%
Division (M40-44)
#0 / 2241
Top 48%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:09
Rank: #2216
Start → 5K
20:09 | 6:29/mi
10K· 6.21 mi
40:38
Rank: #2737 (-521)
5K → 10K
20:29 | 6:36/mi
15K· 9.32 mi
1:01:27
Rank: #3154 (-417)
10K → 15K
20:49 | 6:42/mi
20K· 12.43 mi
1:22:35
Rank: #3418 (-264)
15K → 20K
21:08 | 6:48/mi
Half· 13.11 mi
1:27:14
Rank: #3498 (-80)
20K → Half
4:39 | 6:49/mi
25K· 15.53 mi
1:44:19
Rank: #3918 (-420)
Half → 25K
17:05 | 7:03/mi
30K· 18.64 mi
2:07:43
Rank: #4768 (-850)
25K → 30K
23:24 | 7:32/mi
20M
2:18:07
Rank: #5034 (-266)
30K → 20M
10:24 | 7:39/mi
21M
2:26:16
Rank: #5188 (-154)
20M → 21M
8:09 | 8:09/mi
35K· 21.75 mi
2:31:33
Rank: #5179 (+9)
21M → 35K
5:17 | 7:04/mi
23M
2:40:53
Rank: #5199 (-20)
35K → 23M
9:20 | 7:27/mi
24M
2:48:36
Rank: #5305 (-106)
23M → 24M
7:43 | 7:43/mi
40K· 24.85 mi
2:55:54
Rank: #5509 (-204)
24M → 40K
7:18 | 8:32/mi
25.2M
2:59:22
Rank: #5662 (-153)
40K → 25.2M
3:28 | 10:03/mi
Finish· 26.22 mi
3:08:33
Rank: #6064 (-402)
25.2M → Finish
9:11 | 9:01/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:27:14
Pace6:39 /mi
2nd Half
Distance13.11 mi
Time1:41:19
Pace7:44 /mi
📊Positive Split: 16.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:45:2220:096:2920:09
6:29
-
10K
6.21 mi11:05:5140:386:3220:29
6:36
+0:07
15K
9.32 mi11:26:401:01:276:3620:49
6:42
+0:06
20K
12.43 mi11:47:481:22:356:3921:08
6:48
+0:06
Half
13.11 mi11:52:271:27:146:394:39
6:49
+0:01
25K
15.53 mi12:09:321:44:196:4317:05
7:03
+0:14
30K
18.64 mi12:32:562:07:436:5123:24
7:32
+0:29
20M
20.00 mi12:43:202:18:076:5410:24
7:39
+0:07
21M
21.00 mi12:51:292:26:166:588:09
8:09
+0:30
35K
21.75 mi12:56:462:31:336:585:17
7:04
-1:05
23M
23.00 mi13:06:062:40:537:009:20
7:27
+0:23
24M
24.00 mi13:13:492:48:367:027:43
7:43
+0:16
40K
24.85 mi13:21:072:55:547:057:18
8:32
+0:49
25.2M
25.20 mi13:24:352:59:227:073:28
10:03
+1:31
Finish
26.22 mi13:33:463:08:337:129:11
9:01
-1:02

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

6:29 /mi

Average Pace

7:12 /mi

Slowest Pace

10:03 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:27:14

46% of race

Time at Steady Pace

1:13:13

39% of race

Time at Slower Pace

28:06

15% of race

Average Pace: 7:11 /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 mi10:45:2220:096:2920:09
6:29
#2216
10K
6.21 mi11:05:5140:386:3220:29
6:36
#2737
15K
9.32 mi11:26:401:01:276:3620:49
6:42
#3154
20K
12.43 mi11:47:481:22:356:3921:08
6:48
#3418
Half
13.11 mi11:52:271:27:146:394:39
6:49
#3498
25K
15.53 mi12:09:321:44:196:4317:05
7:03
#3918
30K
18.64 mi12:32:562:07:436:5123:24
7:32
#4768
20M
20.00 mi12:43:202:18:076:5410:24
7:39
#5034
21M
21.00 mi12:51:292:26:166:588:09
8:09
#5188
35K
21.75 mi12:56:462:31:336:585:17
7:04
#5179
23M
23.00 mi13:06:062:40:537:009:20
7:27
#5199
24M
24.00 mi13:13:492:48:367:027:43
7:43
#5305
40K
24.85 mi13:21:072:55:547:057:18
8:32
#5509
25.2M
25.20 mi13:24:352:59:227:073:28
10:03
#5662
Finish
26.22 mi13:33:463:08:337:129:11
9:01
#6064
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi2216211521154147(Top 16%)3893(Top 26%)3893(Top 174%)
10K6.21 mi3.10 mi2737-5212612-4972612-4973459(Top 13%)3282(Top 22%)3282(Top 146%)
15K9.32 mi3.11 mi3154-4173004-3923004-3924147(Top 16%)3893(Top 26%)3893(Top 174%)
20K12.43 mi3.11 mi3418-2643241-2373241-2374468(Top 17%)4169(Top 27%)4169(Top 186%)
Half13.11 mi0.68 mi3498-803313-723313-725421(Top 20%)5004(Top 33%)5004(Top 223%)
25K15.53 mi2.42 mi3918-4203690-3773690-3775825(Top 22%)5312(Top 35%)5312(Top 237%)
30K18.64 mi3.11 mi4768-8504440-7504440-7507424(Top 28%)6334(Top 42%)6334(Top 283%)
20M20.00 mi1.36 mi5034-2664664-2244664-2247803(Top 29%)6463(Top 43%)6463(Top 288%)
21M21.00 mi1.00 mi5188-1544790-1264790-1268262(Top 31%)6614(Top 44%)6614(Top 295%)
35K21.75 mi0.75 mi5179+94774+164774+165681(Top 21%)5012(Top 33%)5012(Top 224%)
23M23.00 mi1.25 mi5199-204778-44778-46159(Top 23%)5288(Top 35%)5288(Top 236%)
24M24.00 mi1.00 mi5305-1064866-884866-889151(Top 34%)6954(Top 46%)6954(Top 310%)
40K24.85 mi0.85 mi5509-2045020-1545020-15413538(Top 51%)9014(Top 59%)9014(Top 402%)
25.2M25.20 mi0.35 mi5662-1535133-1135133-11317496(Top 66%)10753(Top 71%)10753(Top 480%)
Finish26.22 mi1.02 mi6064-4025429-2965429-29617998(Top 68%)11058(Top 73%)11058(Top 493%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 16%
×21stories
+97ft-345ft

Overall

4147

Males

3893

M40-44

3893

5K→10K

3.1 - 6.2 mi

Top 13%
×5stories
+79ft-138ft

Overall

3459

Males

3282

M40-44

3282

10K→15K

6.2 - 9.3 mi

Top 16%
×3stories
+67ft-78ft

Overall

4147

Males

3893

M40-44

3893

15K→20K

9.3 - 12.4 mi

Top 17%
×5stories
+106ft-86ft

Overall

4468

Males

4169

M40-44

4169

20K→Half

12.4 - 13.1 mi

Top 20%
×2stories
+19ft-37ft

Overall

5421

Males

5004

M40-44

5004

Half→25K

13.1 - 15.5 mi

Top 22%
×4stories
+66ft-88ft

Overall

5825

Males

5312

M40-44

5312

25K→30K

15.5 - 18.6 mi

Top 28%
×9stories
+181ft-148ft

Overall

7424

Males

6334

M40-44

6334

30K→20M

18.6 - 20.0 mi

Top 29%
×5stories
+64ft-50ft

Overall

7803

Males

6463

M40-44

6463

20M→21M

20.0 - 21.0 mi

Top 31%
×8stories
+106ft-24ft

Overall

8262

Males

6614

M40-44

6614

21M→35K

21.0 - 21.8 mi

Top 21%
×7stories
+17ft-86ft

Overall

5681

Males

5012

M40-44

5012

35K→23M

21.8 - 23.0 mi

Top 23%
×5stories
+23ft-63ft

Overall

6159

Males

5288

M40-44

5288

23M→24M

23.0 - 24.0 mi

Top 34%
×6stories
+12ft-82ft

Overall

9151

Males

6954

M40-44

6954

24M→40K

24.0 - 24.9 mi

Top 51%
×1story
+6ft-20ft

Overall

13538

Males

9014

M40-44

9014

40K→25.2M

24.9 - 25.2 mi

Top 66%
×1story
+13ft-16ft

Overall

17496

Males

10753

M40-44

10753

25.2M→Finish

25.2 - 26.2 mi

Top 68%
×2stories
+22ft-21ft

Overall

17998

Males

11058

M40-44

11058

Passing Analysis

Category:
Athletes Passed
274
Passed By
4122
Net Change
-3848
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2216
5K → 10K18539-521#2216#2737
10K → 15K9426-417#2737#3154
15K → 20K34298-264#3154#3418
20K → Half282-80#3418#3498
Half → 25K18438-420#3498#3918
25K → 30K13863-850#3918#4768
30K → 20M17283-266#4768#5034
20M → 21M23177-154#5034#5188
21M → 35K4132+9#5188#5179
35K → 23M5676-20#5179#5199
23M → 24M23129-106#5199#5305
24M → 40K11215-204#5305#5509
40K → 25.2M1154-153#5509#5662
25.2M → Finish8410-402#5662#6064
TOTALS2744122-3848
📊

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