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BOSTON MARATHON 2023

Brian Cullin

Bib: 4636•M

PA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 16%
Gender (Male)
#0 / 15176
Top 27%
Division (M18-39)
#0 / 5285
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:10
Rank: #4795
Start → 5K
21:10 | 6:49/mi
10K· 6.21 mi
42:36
Rank: #5460 (-665)
5K → 10K
21:26 | 6:54/mi
15K· 9.32 mi
1:04:13
Rank: #5767 (-307)
10K → 15K
21:37 | 6:57/mi
20K· 12.43 mi
1:25:34
Rank: #5594 (+173)
15K → 20K
21:21 | 6:52/mi
Half· 13.11 mi
1:30:09
Rank: #5556 (+38)
20K → Half
4:35 | 6:43/mi
25K· 15.53 mi
1:46:40
Rank: #5336 (+220)
Half → 25K
16:31 | 6:49/mi
30K· 18.64 mi
2:08:02
Rank: #4911 (+425)
25K → 30K
21:22 | 6:53/mi
20M
2:17:20
Rank: #4727 (+184)
30K → 20M
9:18 | 6:51/mi
21M
2:24:16
Rank: #4499 (+228)
20M → 21M
6:56 | 6:56/mi
35K· 21.75 mi
2:29:06
Rank: #4361 (+138)
21M → 35K
4:50 | 6:28/mi
23M
2:37:39
Rank: #4218 (+143)
35K → 23M
8:33 | 6:50/mi
24M
2:44:25
Rank: #4193 (+25)
23M → 24M
6:46 | 6:46/mi
40K· 24.85 mi
2:50:49
Rank: #4294 (-101)
24M → 40K
6:24 | 7:29/mi
25.2M
2:53:39
Rank: #4352 (-58)
40K → 25.2M
2:50 | 8:13/mi
Finish· 26.22 mi
3:00:47
Rank: #4371 (-19)
25.2M → Finish
7:08 | 7:00/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:30:09
Pace6:53 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:30:38
Pace6:55 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:23:0821:106:4921:10
6:49
-
10K
6.21 mi10:44:3442:366:5121:26
6:54
+0:05
15K
9.32 mi11:06:111:04:136:5321:37
6:57
+0:03
20K
12.43 mi11:27:321:25:346:5321:21
6:52
-0:05
Half
13.11 mi11:32:071:30:096:534:35
6:43
-0:09
25K
15.53 mi11:48:381:46:406:5216:31
6:49
+0:06
30K
18.64 mi12:10:002:08:026:5221:22
6:53
+0:04
20M
20.00 mi12:19:182:17:206:529:18
6:51
-0:02
21M
21.00 mi12:26:142:24:166:526:56
6:56
+0:05
35K
21.75 mi12:31:042:29:066:514:50
6:28
-0:28
23M
23.00 mi12:39:372:37:396:518:33
6:50
+0:22
24M
24.00 mi12:46:232:44:256:516:46
6:46
-0:04
40K
24.85 mi12:52:472:50:496:526:24
7:29
+0:43
25.2M
25.20 mi12:55:372:53:396:532:50
8:13
+0:44
Finish
26.22 mi13:02:453:00:476:547:08
7:00
-1:13

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

6:28 /mi

Average Pace

6:54 /mi

Slowest Pace

8:13 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

4:50

3% of race

Time at Steady Pace

2:46:43

92% of race

Time at Slower Pace

9:14

5% of race

Average Pace: 6:54 /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 mi10:23:0821:106:4921:10
6:49
#4795
10K
6.21 mi10:44:3442:366:5121:26
6:54
#5460
15K
9.32 mi11:06:111:04:136:5321:37
6:57
#5767
20K
12.43 mi11:27:321:25:346:5321:21
6:52
#5594
Half
13.11 mi11:32:071:30:096:534:35
6:43
#5556
25K
15.53 mi11:48:381:46:406:5216:31
6:49
#5336
30K
18.64 mi12:10:002:08:026:5221:22
6:53
#4911
20M
20.00 mi12:19:182:17:206:529:18
6:51
#4727
21M
21.00 mi12:26:142:24:166:526:56
6:56
#4499
35K
21.75 mi12:31:042:29:066:514:50
6:28
#4361
23M
23.00 mi12:39:372:37:396:518:33
6:50
#4218
24M
24.00 mi12:46:232:44:256:516:46
6:46
#4193
40K
24.85 mi12:52:472:50:496:526:24
7:29
#4294
25.2M
25.20 mi12:55:372:53:396:532:50
8:13
#4352
Finish
26.22 mi13:02:453:00:476:547:08
7:00
#4371
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi4795446144616287(Top 24%)5682(Top 37%)5682(Top 108%)
10K6.21 mi3.10 mi5460-6655040-5795040-5796107(Top 23%)5541(Top 37%)5541(Top 105%)
15K9.32 mi3.11 mi5767-3075294-2545294-2546287(Top 24%)5682(Top 37%)5682(Top 108%)
20K12.43 mi3.11 mi5594+1735155+1395155+1395111(Top 19%)4726(Top 31%)4726(Top 89%)
Half13.11 mi0.68 mi5556+385127+285127+284519(Top 17%)4211(Top 28%)4211(Top 80%)
25K15.53 mi2.42 mi5336+2204936+1914936+1914259(Top 16%)3984(Top 26%)3984(Top 75%)
30K18.64 mi3.11 mi4911+4254569+3674569+3673517(Top 13%)3308(Top 22%)3308(Top 63%)
20M20.00 mi1.36 mi4727+1844404+1654404+1653105(Top 12%)2919(Top 19%)2919(Top 55%)
21M21.00 mi1.00 mi4499+2284198+2064198+2061899(Top 7%)1805(Top 12%)1805(Top 34%)
35K21.75 mi0.75 mi4361+1384072+1264072+1262272(Top 9%)2159(Top 14%)2159(Top 41%)
23M23.00 mi1.25 mi4218+1433947+1253947+1252843(Top 11%)2659(Top 18%)2659(Top 50%)
24M24.00 mi1.00 mi4193+253924+233924+233486(Top 13%)3211(Top 21%)3211(Top 61%)
40K24.85 mi0.85 mi4294-1014011-874011-876589(Top 25%)5377(Top 35%)5377(Top 102%)
25.2M25.20 mi0.35 mi4352-584061-504061-507675(Top 29%)5951(Top 39%)5951(Top 113%)
Finish26.22 mi1.02 mi4371-194078-174078-175183(Top 19%)4391(Top 29%)4391(Top 83%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 24%
×21stories
+97ft-345ft

Overall

6287

Males

5682

M18-39

5682

5K→10K

3.1 - 6.2 mi

Top 23%
×5stories
+79ft-138ft

Overall

6107

Males

5541

M18-39

5541

10K→15K

6.2 - 9.3 mi

Top 24%
×3stories
+67ft-78ft

Overall

6287

Males

5682

M18-39

5682

15K→20K

9.3 - 12.4 mi

Top 19%
×5stories
+106ft-86ft

Overall

5111

Males

4726

M18-39

4726

20K→Half

12.4 - 13.1 mi

Top 17%
×2stories
+19ft-37ft

Overall

4519

Males

4211

M18-39

4211

Half→25K

13.1 - 15.5 mi

Top 16%
×4stories
+66ft-88ft

Overall

4259

Males

3984

M18-39

3984

25K→30K

15.5 - 18.6 mi

Top 13%
×9stories
+181ft-148ft

Overall

3517

Males

3308

M18-39

3308

30K→20M

18.6 - 20.0 mi

Top 12%
×5stories
+64ft-50ft

Overall

3105

Males

2919

M18-39

2919

20M→21M

20.0 - 21.0 mi

Top 7%
×8stories
+106ft-24ft

Overall

1899

Males

1805

M18-39

1805

21M→35K

21.0 - 21.8 mi

Top 9%
×7stories
+17ft-86ft

Overall

2272

Males

2159

M18-39

2159

35K→23M

21.8 - 23.0 mi

Top 11%
×5stories
+23ft-63ft

Overall

2843

Males

2659

M18-39

2659

23M→24M

23.0 - 24.0 mi

Top 13%
×6stories
+12ft-82ft

Overall

3486

Males

3211

M18-39

3211

24M→40K

24.0 - 24.9 mi

Top 25%
×1story
+6ft-20ft

Overall

6589

Males

5377

M18-39

5377

40K→25.2M

24.9 - 25.2 mi

Top 29%
×1story
+13ft-16ft

Overall

7675

Males

5951

M18-39

5951

25.2M→Finish

25.2 - 26.2 mi

Top 19%
×2stories
+22ft-21ft

Overall

5183

Males

4391

M18-39

4391

Passing Analysis

Category:
Athletes Passed
1815
Passed By
1391
Net Change
+424
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4795
5K → 10K43708-665#4795#5460
10K → 15K33340-307#5460#5767
15K → 20K19926+173#5767#5594
20K → Half4810+38#5594#5556
Half → 25K2222+220#5556#5336
25K → 30K4305+425#5336#4911
30K → 20M1873+184#4911#4727
20M → 21M2302+228#4727#4499
21M → 35K1391+138#4499#4361
35K → 23M1507+143#4361#4218
23M → 24M6035+25#4218#4193
24M → 40K32133-101#4193#4294
40K → 25.2M967-58#4294#4352
25.2M → Finish3352-19#4352#4371
TOTALS18151391+424
📊

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