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BOSTON MARATHON 2023

Brian Cook

Bib: 3619•M

KS

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 10%
Gender (Male)
#0 / 15176
Top 17%
Masters (Masters Men)
#0 / 9891
Top 6%
Division (M40-44)
#0 / 2241
Top 17%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:02
Rank: #4341
Start → 5K
21:02 | 6:46/mi
10K· 6.21 mi
41:35
Rank: #3884 (+457)
5K → 10K
20:33 | 6:37/mi
15K· 9.32 mi
1:02:00
Rank: #3573 (+311)
10K → 15K
20:25 | 6:34/mi
20K· 12.43 mi
1:22:31
Rank: #3375 (+198)
15K → 20K
20:31 | 6:36/mi
Half· 13.11 mi
1:27:00
Rank: #3360 (+15)
20K → Half
4:29 | 6:34/mi
25K· 15.53 mi
1:43:01
Rank: #3220 (+140)
Half → 25K
16:01 | 6:36/mi
30K· 18.64 mi
2:03:43
Rank: #2955 (+265)
25K → 30K
20:42 | 6:40/mi
20M
2:13:03
Rank: #2949 (+6)
30K → 20M
9:20 | 6:52/mi
21M
2:20:07
Rank: #2903 (+46)
20M → 21M
7:04 | 7:04/mi
35K· 21.75 mi
2:24:50
Rank: #2814 (+89)
21M → 35K
4:43 | 6:18/mi
23M
2:33:18
Rank: #2759 (+55)
35K → 23M
8:28 | 6:46/mi
24M
2:39:59
Rank: #2738 (+21)
23M → 24M
6:41 | 6:41/mi
40K· 24.85 mi
2:46:03
Rank: #2782 (-44)
24M → 40K
6:04 | 7:06/mi
25.2M
2:48:36
Rank: #2782
40K → 25.2M
2:33 | 7:24/mi
Finish· 26.22 mi
2:55:12
Rank: #2745 (+37)
25.2M → Finish
6:36 | 6:29/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:27:00
Pace6:38 /mi
2nd Half
Distance13.11 mi
Time1:28:12
Pace6:44 /mi
📊Positive Split: 1.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:4021:026:4621:02
6:46
-
10K
6.21 mi10:43:1341:356:4220:33
6:37
-0:09
15K
9.32 mi11:03:381:02:006:3920:25
6:34
-0:03
20K
12.43 mi11:24:091:22:316:3820:31
6:36
+0:02
Half
13.11 mi11:28:381:27:006:384:29
6:34
-0:02
25K
15.53 mi11:44:391:43:016:3816:01
6:36
+0:02
30K
18.64 mi12:05:212:03:436:3820:42
6:40
+0:04
20M
20.00 mi12:14:412:13:036:399:20
6:52
+0:12
21M
21.00 mi12:21:452:20:076:407:04
7:04
+0:12
35K
21.75 mi12:26:282:24:506:404:43
6:18
-0:46
23M
23.00 mi12:34:562:33:186:408:28
6:46
+0:28
24M
24.00 mi12:41:372:39:596:406:41
6:41
-0:05
40K
24.85 mi12:47:412:46:036:416:04
7:06
+0:25
25.2M
25.20 mi12:50:142:48:366:412:33
7:24
+0:18
Finish
26.22 mi12:56:502:55:126:416:36
6:29
-0:55

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

6:18 /mi

Average Pace

6:41 /mi

Slowest Pace

7:24 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:39:31

91% of race

Time at Steady Pace

15:41

9% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:41 /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 mi10:22:4021:026:4621:02
6:46
#4341
10K
6.21 mi10:43:1341:356:4220:33
6:37
#3884
15K
9.32 mi11:03:381:02:006:3920:25
6:34
#3573
20K
12.43 mi11:24:091:22:316:3820:31
6:36
#3375
Half
13.11 mi11:28:381:27:006:384:29
6:34
#3360
25K
15.53 mi11:44:391:43:016:3816:01
6:36
#3220
30K
18.64 mi12:05:212:03:436:3820:42
6:40
#2955
20M
20.00 mi12:14:412:13:036:399:20
6:52
#2949
21M
21.00 mi12:21:452:20:076:407:04
7:04
#2903
35K
21.75 mi12:26:282:24:506:404:43
6:18
#2814
23M
23.00 mi12:34:562:33:186:408:28
6:46
#2759
24M
24.00 mi12:41:372:39:596:406:41
6:41
#2738
40K
24.85 mi12:47:412:46:036:416:04
7:06
#2782
25.2M
25.20 mi12:50:142:48:366:412:33
7:24
#2782
Finish
26.22 mi12:56:502:55:126:416:36
6:29
#2745
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi4341405240523059(Top 11%)2917(Top 19%)2917(Top 130%)
10K6.21 mi3.10 mi3884+4573656+3963656+3963587(Top 13%)3387(Top 22%)3387(Top 151%)
15K9.32 mi3.11 mi3573+3113378+2783378+2783059(Top 11%)2917(Top 19%)2917(Top 130%)
20K12.43 mi3.11 mi3375+1983203+1753203+1752870(Top 11%)2738(Top 18%)2738(Top 122%)
Half13.11 mi0.68 mi3360+153192+113192+113197(Top 12%)3047(Top 20%)3047(Top 136%)
25K15.53 mi2.42 mi3220+1403068+1243068+1242747(Top 10%)2628(Top 17%)2628(Top 117%)
30K18.64 mi3.11 mi2955+2652822+2462822+2462238(Top 8%)2134(Top 14%)2134(Top 95%)
20M20.00 mi1.36 mi2949+62814+82814+83207(Top 12%)3004(Top 20%)3004(Top 134%)
21M21.00 mi1.00 mi2903+462771+432771+432468(Top 9%)2331(Top 15%)2331(Top 104%)
35K21.75 mi0.75 mi2814+892689+822689+821618(Top 6%)1538(Top 10%)1538(Top 69%)
23M23.00 mi1.25 mi2759+552632+572632+572441(Top 9%)2293(Top 15%)2293(Top 102%)
24M24.00 mi1.00 mi2738+212610+222610+222997(Top 11%)2781(Top 18%)2781(Top 124%)
40K24.85 mi0.85 mi2782-442644-342644-344310(Top 16%)3826(Top 25%)3826(Top 171%)
25.2M25.20 mi0.35 mi27822643+12643+13342(Top 13%)3025(Top 20%)3025(Top 135%)
Finish26.22 mi1.02 mi2745+372611+322611+322364(Top 9%)2182(Top 14%)2182(Top 97%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 11%
×21stories
+97ft-345ft

Overall

3059

Males

2917

M40-44

2917

5K→10K

3.1 - 6.2 mi

Top 13%
×5stories
+79ft-138ft

Overall

3587

Males

3387

M40-44

3387

10K→15K

6.2 - 9.3 mi

Top 11%
×3stories
+67ft-78ft

Overall

3059

Males

2917

M40-44

2917

15K→20K

9.3 - 12.4 mi

Top 11%
×5stories
+106ft-86ft

Overall

2870

Males

2738

M40-44

2738

20K→Half

12.4 - 13.1 mi

Top 12%
×2stories
+19ft-37ft

Overall

3197

Males

3047

M40-44

3047

Half→25K

13.1 - 15.5 mi

Top 10%
×4stories
+66ft-88ft

Overall

2747

Males

2628

M40-44

2628

25K→30K

15.5 - 18.6 mi

Top 8%
×9stories
+181ft-148ft

Overall

2238

Males

2134

M40-44

2134

30K→20M

18.6 - 20.0 mi

Top 12%
×5stories
+64ft-50ft

Overall

3207

Males

3004

M40-44

3004

20M→21M

20.0 - 21.0 mi

Top 9%
×8stories
+106ft-24ft

Overall

2468

Males

2331

M40-44

2331

21M→35K

21.0 - 21.8 mi

Top 6%
×7stories
+17ft-86ft

Overall

1618

Males

1538

M40-44

1538

35K→23M

21.8 - 23.0 mi

Top 9%
×5stories
+23ft-63ft

Overall

2441

Males

2293

M40-44

2293

23M→24M

23.0 - 24.0 mi

Top 11%
×6stories
+12ft-82ft

Overall

2997

Males

2781

M40-44

2781

24M→40K

24.0 - 24.9 mi

Top 16%
×1story
+6ft-20ft

Overall

4310

Males

3826

M40-44

3826

40K→25.2M

24.9 - 25.2 mi

Top 13%
×1story
+13ft-16ft

Overall

3342

Males

3025

M40-44

3025

25.2M→Finish

25.2 - 26.2 mi

Top 9%
×2stories
+22ft-21ft

Overall

2364

Males

2182

M40-44

2182

Passing Analysis

Category:
Athletes Passed
1936
Passed By
340
Net Change
+1596
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4341
5K → 10K52467+457#4341#3884
10K → 15K32817+311#3884#3573
15K → 20K21214+198#3573#3375
20K → Half2510+15#3375#3360
Half → 25K15111+140#3360#3220
25K → 30K2716+265#3220#2955
30K → 20M4539+6#2955#2949
20M → 21M6115+46#2949#2903
21M → 35K934+89#2903#2814
35K → 23M7823+55#2814#2759
23M → 24M4928+21#2759#2738
24M → 40K2670-44#2738#2782
40K → 25.2M15150#2782#2782
25.2M → Finish5821+37#2782#2745
TOTALS1936340+1596
📊

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