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BOSTON MARATHON 2023

Corey Berlin

Bib: 2803•M

TX

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 7%
Gender (Male)
#0 / 15176
Top 11%
Masters (Masters Men)
#0 / 9891
Top 3%
Division (M40-44)
#0 / 2241
Top 10%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:32
Rank: #2907
Start → 5K
20:32 | 6:37/mi
10K· 6.21 mi
40:40
Rank: #2760 (+147)
5K → 10K
20:08 | 6:29/mi
15K· 9.32 mi
1:00:44
Rank: #2618 (+142)
10K → 15K
20:04 | 6:28/mi
20K· 12.43 mi
1:20:50
Rank: #2471 (+147)
15K → 20K
20:06 | 6:28/mi
Half· 13.11 mi
1:25:13
Rank: #2458 (+13)
20K → Half
4:23 | 6:25/mi
25K· 15.53 mi
1:40:52
Rank: #2379 (+79)
Half → 25K
15:39 | 6:27/mi
30K· 18.64 mi
2:01:08
Rank: #2226 (+153)
25K → 30K
20:16 | 6:31/mi
20M
2:09:56
Rank: #2119 (+107)
30K → 20M
8:48 | 6:29/mi
21M
2:16:40
Rank: #2049 (+70)
20M → 21M
6:44 | 6:44/mi
35K· 21.75 mi
2:21:20
Rank: #2011 (+38)
21M → 35K
4:40 | 6:14/mi
23M
2:29:24
Rank: #1918 (+93)
35K → 23M
8:04 | 6:27/mi
24M
2:35:37
Rank: #1857 (+61)
23M → 24M
6:13 | 6:13/mi
40K· 24.85 mi
2:41:09
Rank: #1833 (+24)
24M → 40K
5:32 | 6:28/mi
25.2M
2:43:35
Rank: #1822 (+11)
40K → 25.2M
2:26 | 7:03/mi
Finish· 26.22 mi
2:50:04
Rank: #1799 (+23)
25.2M → Finish
6:29 | 6:22/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:25:13
Pace6:30 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:24:51
Pace6:28 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:3320:326:3720:32
6:37
-
10K
6.21 mi10:41:4140:406:3320:08
6:29
-0:08
15K
9.32 mi11:01:451:00:446:3120:04
6:28
-0:01
20K
12.43 mi11:21:511:20:506:3020:06
6:28
0:00
Half
13.11 mi11:26:141:25:136:304:23
6:25
-0:03
25K
15.53 mi11:41:531:40:526:3015:39
6:27
+0:02
30K
18.64 mi12:02:092:01:086:3020:16
6:31
+0:04
20M
20.00 mi12:10:572:09:566:308:48
6:29
-0:02
21M
21.00 mi12:17:412:16:406:306:44
6:44
+0:15
35K
21.75 mi12:22:212:21:206:304:40
6:14
-0:30
23M
23.00 mi12:30:252:29:246:308:04
6:27
+0:13
24M
24.00 mi12:36:382:35:376:296:13
6:13
-0:14
40K
24.85 mi12:42:102:41:096:295:32
6:28
+0:15
25.2M
25.20 mi12:44:362:43:356:292:26
7:03
+0:35
Finish
26.22 mi12:51:052:50:046:296:29
6:22
-0:41

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

6:13 /mi

Average Pace

6:29 /mi

Slowest Pace

7:03 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:47:38

99% of race

Time at Steady Pace

2:26

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:29 /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 mi10:21:3320:326:3720:32
6:37
#2907
10K
6.21 mi10:41:4140:406:3320:08
6:29
#2760
15K
9.32 mi11:01:451:00:446:3120:04
6:28
#2618
20K
12.43 mi11:21:511:20:506:3020:06
6:28
#2471
Half
13.11 mi11:26:141:25:136:304:23
6:25
#2458
25K
15.53 mi11:41:531:40:526:3015:39
6:27
#2379
30K
18.64 mi12:02:092:01:086:3020:16
6:31
#2226
20M
20.00 mi12:10:572:09:566:308:48
6:29
#2119
21M
21.00 mi12:17:412:16:406:306:44
6:44
#2049
35K
21.75 mi12:22:212:21:206:304:40
6:14
#2011
23M
23.00 mi12:30:252:29:246:308:04
6:27
#1918
24M
24.00 mi12:36:382:35:376:296:13
6:13
#1857
40K
24.85 mi12:42:102:41:096:295:32
6:28
#1833
25.2M
25.20 mi12:44:362:43:356:292:26
7:03
#1822
Finish
26.22 mi12:51:052:50:046:296:29
6:22
#1799
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi2907276127612395(Top 9%)2298(Top 15%)2298(Top 103%)
10K6.21 mi3.10 mi2760+1472631+1302631+1302666(Top 10%)2549(Top 17%)2549(Top 114%)
15K9.32 mi3.11 mi2618+1422499+1322499+1322395(Top 9%)2298(Top 15%)2298(Top 103%)
20K12.43 mi3.11 mi2471+1472366+1332366+1332118(Top 8%)2032(Top 13%)2032(Top 91%)
Half13.11 mi0.68 mi2458+132355+112355+112307(Top 9%)2212(Top 15%)2212(Top 99%)
25K15.53 mi2.42 mi2379+792281+742281+741970(Top 7%)1886(Top 12%)1886(Top 84%)
30K18.64 mi3.11 mi2226+1532136+1452136+1451656(Top 6%)1583(Top 10%)1583(Top 71%)
20M20.00 mi1.36 mi2119+1072030+1062030+1061369(Top 5%)1306(Top 9%)1306(Top 58%)
21M21.00 mi1.00 mi2049+701963+671963+671224(Top 5%)1166(Top 8%)1166(Top 52%)
35K21.75 mi0.75 mi2011+381927+361927+361374(Top 5%)1304(Top 9%)1304(Top 58%)
23M23.00 mi1.25 mi1918+931838+891838+891247(Top 5%)1178(Top 8%)1178(Top 53%)
24M24.00 mi1.00 mi1857+611777+611777+611083(Top 4%)1025(Top 7%)1025(Top 46%)
40K24.85 mi0.85 mi1833+241753+241753+241444(Top 5%)1363(Top 9%)1363(Top 61%)
25.2M25.20 mi0.35 mi1822+111743+101743+101896(Top 7%)1779(Top 12%)1779(Top 79%)
Finish26.22 mi1.02 mi1799+231718+251718+251857(Top 7%)1735(Top 11%)1735(Top 77%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 9%
×21stories
+97ft-345ft

Overall

2395

Males

2298

M40-44

2298

5K→10K

3.1 - 6.2 mi

Top 10%
×5stories
+79ft-138ft

Overall

2666

Males

2549

M40-44

2549

10K→15K

6.2 - 9.3 mi

Top 9%
×3stories
+67ft-78ft

Overall

2395

Males

2298

M40-44

2298

15K→20K

9.3 - 12.4 mi

Top 8%
×5stories
+106ft-86ft

Overall

2118

Males

2032

M40-44

2032

20K→Half

12.4 - 13.1 mi

Top 9%
×2stories
+19ft-37ft

Overall

2307

Males

2212

M40-44

2212

Half→25K

13.1 - 15.5 mi

Top 7%
×4stories
+66ft-88ft

Overall

1970

Males

1886

M40-44

1886

25K→30K

15.5 - 18.6 mi

Top 6%
×9stories
+181ft-148ft

Overall

1656

Males

1583

M40-44

1583

30K→20M

18.6 - 20.0 mi

Top 5%
×5stories
+64ft-50ft

Overall

1369

Males

1306

M40-44

1306

20M→21M

20.0 - 21.0 mi

Top 5%
×8stories
+106ft-24ft

Overall

1224

Males

1166

M40-44

1166

21M→35K

21.0 - 21.8 mi

Top 5%
×7stories
+17ft-86ft

Overall

1374

Males

1304

M40-44

1304

35K→23M

21.8 - 23.0 mi

Top 5%
×5stories
+23ft-63ft

Overall

1247

Males

1178

M40-44

1178

23M→24M

23.0 - 24.0 mi

Top 4%
×6stories
+12ft-82ft

Overall

1083

Males

1025

M40-44

1025

24M→40K

24.0 - 24.9 mi

Top 5%
×1story
+6ft-20ft

Overall

1444

Males

1363

M40-44

1363

40K→25.2M

24.9 - 25.2 mi

Top 7%
×1story
+13ft-16ft

Overall

1896

Males

1779

M40-44

1779

25.2M→Finish

25.2 - 26.2 mi

Top 7%
×2stories
+22ft-21ft

Overall

1857

Males

1735

M40-44

1735

Passing Analysis

Category:
Athletes Passed
1326
Passed By
218
Net Change
+1108
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2907
5K → 10K24194+147#2907#2760
10K → 15K17129+142#2760#2618
15K → 20K16114+147#2618#2471
20K → Half174+13#2471#2458
Half → 25K9213+79#2458#2379
25K → 30K16613+153#2379#2226
30K → 20M1081+107#2226#2119
20M → 21M722+70#2119#2049
21M → 35K435+38#2049#2011
35K → 23M974+93#2011#1918
23M → 24M610+61#1918#1857
24M → 40K3612+24#1857#1833
40K → 25.2M209+11#1833#1822
25.2M → Finish4118+23#1822#1799
TOTALS1326218+1108
📊

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