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BOSTON MARATHON 2023

Joe Kotlowski

Bib: 8782•M

WI

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 22%
Gender (Male)
#0 / 15176
Top 35%
Masters (Masters Men)
#0 / 9891
Top 21%
Division (M40-44)
#0 / 2241
Top 47%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:44
Rank: #6221
Start → 5K
21:44 | 7:00/mi
10K· 6.21 mi
42:49
Rank: #5752 (+469)
5K → 10K
21:05 | 6:47/mi
15K· 9.32 mi
1:03:58
Rank: #5575 (+177)
10K → 15K
21:09 | 6:48/mi
20K· 12.43 mi
1:25:32
Rank: #5580 (-5)
15K → 20K
21:34 | 6:56/mi
Half· 13.11 mi
1:30:13
Rank: #5588 (-8)
20K → Half
4:41 | 6:52/mi
25K· 15.53 mi
1:47:15
Rank: #5609 (-21)
Half → 25K
17:02 | 7:02/mi
30K· 18.64 mi
2:10:01
Rank: #5665 (-56)
25K → 30K
22:46 | 7:20/mi
20M
2:20:07
Rank: #5684 (-19)
30K → 20M
10:06 | 7:26/mi
21M
2:28:01
Rank: #5699 (-15)
20M → 21M
7:54 | 7:54/mi
35K· 21.75 mi
2:33:30
Rank: #5731 (-32)
21M → 35K
5:29 | 7:20/mi
23M
2:43:04
Rank: #5759 (-28)
35K → 23M
9:34 | 7:38/mi
24M
2:50:40
Rank: #5796 (-37)
23M → 24M
7:36 | 7:36/mi
40K· 24.85 mi
2:57:20
Rank: #5844 (-48)
24M → 40K
6:40 | 7:48/mi
25.2M
3:00:12
Rank: #5856 (-12)
40K → 25.2M
2:52 | 8:19/mi
Finish· 26.22 mi
3:08:02
Rank: #5942 (-86)
25.2M → Finish
7:50 | 7:41/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:30:13
Pace6:53 /mi
2nd Half
Distance13.11 mi
Time1:37:49
Pace7:28 /mi
📊Positive Split: 8.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:47:2421:447:0021:44
7:00
-
10K
6.21 mi11:08:2942:496:5321:05
6:47
-0:13
15K
9.32 mi11:29:381:03:586:5221:09
6:48
+0:01
20K
12.43 mi11:51:121:25:326:5321:34
6:56
+0:08
Half
13.11 mi11:55:531:30:136:534:41
6:52
-0:04
25K
15.53 mi12:12:551:47:156:5417:02
7:02
+0:10
30K
18.64 mi12:35:412:10:016:5822:46
7:20
+0:18
20M
20.00 mi12:45:472:20:077:0010:06
7:26
+0:06
21M
21.00 mi12:53:412:28:017:037:54
7:54
+0:28
35K
21.75 mi12:59:102:33:307:035:29
7:20
-0:34
23M
23.00 mi13:08:442:43:047:059:34
7:38
+0:18
24M
24.00 mi13:16:202:50:407:077:36
7:36
-0:02
40K
24.85 mi13:23:002:57:207:086:40
7:48
+0:12
25.2M
25.20 mi13:25:523:00:127:092:52
8:19
+0:31
Finish
26.22 mi13:33:423:08:027:117:50
7:41
-0:38

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

6:47 /mi

Average Pace

7:11 /mi

Slowest Pace

8:19 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:47:15

57% of race

Time at Steady Pace

38:21

20% of race

Time at Slower Pace

42:26

23% of race

Average Pace: 7:10 /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 mi10:47:2421:447:0021:44
7:00
#6221
10K
6.21 mi11:08:2942:496:5321:05
6:47
#5752
15K
9.32 mi11:29:381:03:586:5221:09
6:48
#5575
20K
12.43 mi11:51:121:25:326:5321:34
6:56
#5580
Half
13.11 mi11:55:531:30:136:534:41
6:52
#5588
25K
15.53 mi12:12:551:47:156:5417:02
7:02
#5609
30K
18.64 mi12:35:412:10:016:5822:46
7:20
#5665
20M
20.00 mi12:45:472:20:077:0010:06
7:26
#5684
21M
21.00 mi12:53:412:28:017:037:54
7:54
#5699
35K
21.75 mi12:59:102:33:307:035:29
7:20
#5731
23M
23.00 mi13:08:442:43:047:059:34
7:38
#5759
24M
24.00 mi13:16:202:50:407:077:36
7:36
#5796
40K
24.85 mi13:23:002:57:207:086:40
7:48
#5844
25.2M
25.20 mi13:25:523:00:127:092:52
8:19
#5856
Finish
26.22 mi13:33:423:08:027:117:50
7:41
#5942
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi6221567556755209(Top 20%)4817(Top 32%)4817(Top 215%)
10K6.21 mi3.10 mi5752+4695285+3905285+3905158(Top 19%)4772(Top 31%)4772(Top 213%)
15K9.32 mi3.11 mi5575+1775136+1495136+1495209(Top 20%)4817(Top 32%)4817(Top 215%)
20K12.43 mi3.11 mi5580-55144-85144-85614(Top 21%)5156(Top 34%)5156(Top 230%)
Half13.11 mi0.68 mi5588-85152-85152-85775(Top 22%)5307(Top 35%)5307(Top 237%)
25K15.53 mi2.42 mi5609-215163-115163-115721(Top 21%)5239(Top 35%)5239(Top 234%)
30K18.64 mi3.11 mi5665-565199-365199-366178(Top 23%)5498(Top 36%)5498(Top 245%)
20M20.00 mi1.36 mi5684-195208-95208-96339(Top 24%)5533(Top 36%)5533(Top 247%)
21M21.00 mi1.00 mi5699-155217-95217-96696(Top 25%)5665(Top 37%)5665(Top 253%)
35K21.75 mi0.75 mi5731-325236-195236-197279(Top 27%)6052(Top 40%)6052(Top 270%)
23M23.00 mi1.25 mi5759-285232+45232+47328(Top 28%)6008(Top 40%)6008(Top 268%)
24M24.00 mi1.00 mi5796-375253-215253-218355(Top 31%)6517(Top 43%)6517(Top 291%)
40K24.85 mi0.85 mi5844-485280-275280-278611(Top 32%)6595(Top 43%)6595(Top 294%)
25.2M25.20 mi0.35 mi5856-125284-45284-48280(Top 31%)6312(Top 42%)6312(Top 282%)
Finish26.22 mi1.02 mi5942-865338-545338-549847(Top 37%)7192(Top 47%)7192(Top 321%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 20%
×21stories
+97ft-345ft

Overall

5209

Males

4817

M40-44

4817

5K→10K

3.1 - 6.2 mi

Top 19%
×5stories
+79ft-138ft

Overall

5158

Males

4772

M40-44

4772

10K→15K

6.2 - 9.3 mi

Top 20%
×3stories
+67ft-78ft

Overall

5209

Males

4817

M40-44

4817

15K→20K

9.3 - 12.4 mi

Top 21%
×5stories
+106ft-86ft

Overall

5614

Males

5156

M40-44

5156

20K→Half

12.4 - 13.1 mi

Top 22%
×2stories
+19ft-37ft

Overall

5775

Males

5307

M40-44

5307

Half→25K

13.1 - 15.5 mi

Top 21%
×4stories
+66ft-88ft

Overall

5721

Males

5239

M40-44

5239

25K→30K

15.5 - 18.6 mi

Top 23%
×9stories
+181ft-148ft

Overall

6178

Males

5498

M40-44

5498

30K→20M

18.6 - 20.0 mi

Top 24%
×5stories
+64ft-50ft

Overall

6339

Males

5533

M40-44

5533

20M→21M

20.0 - 21.0 mi

Top 25%
×8stories
+106ft-24ft

Overall

6696

Males

5665

M40-44

5665

21M→35K

21.0 - 21.8 mi

Top 27%
×7stories
+17ft-86ft

Overall

7279

Males

6052

M40-44

6052

35K→23M

21.8 - 23.0 mi

Top 28%
×5stories
+23ft-63ft

Overall

7328

Males

6008

M40-44

6008

23M→24M

23.0 - 24.0 mi

Top 31%
×6stories
+12ft-82ft

Overall

8355

Males

6517

M40-44

6517

24M→40K

24.0 - 24.9 mi

Top 32%
×1story
+6ft-20ft

Overall

8611

Males

6595

M40-44

6595

40K→25.2M

24.9 - 25.2 mi

Top 31%
×1story
+13ft-16ft

Overall

8280

Males

6312

M40-44

6312

25.2M→Finish

25.2 - 26.2 mi

Top 37%
×2stories
+22ft-21ft

Overall

9847

Males

7192

M40-44

7192

Passing Analysis

Category:
Athletes Passed
1336
Passed By
1057
Net Change
+279
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6221
5K → 10K50839+469#6221#5752
10K → 15K22548+177#5752#5575
15K → 20K104109-5#5575#5580
20K → Half1422-8#5580#5588
Half → 25K7495-21#5588#5609
25K → 30K102158-56#5609#5665
30K → 20M5372-19#5665#5684
20M → 21M4863-15#5684#5699
21M → 35K2456-32#5699#5731
35K → 23M6290-28#5731#5759
23M → 24M3673-37#5759#5796
24M → 40K3280-48#5796#5844
40K → 25.2M1628-12#5844#5856
25.2M → Finish38124-86#5856#5942
TOTALS13361057+279
📊

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