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BOSTON MARATHON 2023

Brian Burlas

Bib: 4924•M

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 15%
Gender (Male)
#0 / 15176
Top 24%
Division (M18-39)
#0 / 5285
Top 48%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:22
Rank: #5361
Start → 5K
21:22 | 6:53/mi
10K· 6.21 mi
42:30
Rank: #5304 (+57)
5K → 10K
21:08 | 6:48/mi
15K· 9.32 mi
1:03:39
Rank: #5247 (+57)
10K → 15K
21:09 | 6:48/mi
20K· 12.43 mi
1:24:51
Rank: #5100 (+147)
15K → 20K
21:12 | 6:49/mi
Half· 13.11 mi
1:29:27
Rank: #5087 (+13)
20K → Half
4:36 | 6:45/mi
25K· 15.53 mi
1:46:03
Rank: #4954 (+133)
Half → 25K
16:36 | 6:51/mi
30K· 18.64 mi
2:07:28
Rank: #4649 (+305)
25K → 30K
21:25 | 6:54/mi
20M
2:16:55
Rank: #4545 (+104)
30K → 20M
9:27 | 6:57/mi
21M
2:23:56
Rank: #4349 (+196)
20M → 21M
7:01 | 7:01/mi
35K· 21.75 mi
2:29:02
Rank: #4335 (+14)
21M → 35K
5:06 | 6:49/mi
23M
2:37:46
Rank: #4250 (+85)
35K → 23M
8:44 | 6:59/mi
24M
2:44:18
Rank: #4131 (+119)
23M → 24M
6:32 | 6:32/mi
40K· 24.85 mi
2:50:08
Rank: #4068 (+63)
24M → 40K
5:50 | 6:49/mi
25.2M
2:52:33
Rank: #4005 (+63)
40K → 25.2M
2:25 | 7:00/mi
Finish· 26.22 mi
2:59:06
Rank: #3886 (+119)
25.2M → Finish
6:33 | 6:26/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:29:27
Pace6:49 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:29:39
Pace6:50 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:23:3221:226:5321:22
6:53
-
10K
6.21 mi10:44:4042:306:5021:08
6:48
-0:05
15K
9.32 mi11:05:491:03:396:5021:09
6:48
0:00
20K
12.43 mi11:27:011:24:516:5021:12
6:49
+0:01
Half
13.11 mi11:31:371:29:276:494:36
6:45
-0:04
25K
15.53 mi11:48:131:46:036:5016:36
6:51
+0:06
30K
18.64 mi12:09:382:07:286:5021:25
6:54
+0:03
20M
20.00 mi12:19:052:16:556:519:27
6:57
+0:03
21M
21.00 mi12:26:062:23:566:517:01
7:01
+0:04
35K
21.75 mi12:31:122:29:026:515:06
6:49
-0:12
23M
23.00 mi12:39:562:37:466:528:44
6:59
+0:10
24M
24.00 mi12:46:282:44:186:516:32
6:32
-0:27
40K
24.85 mi12:52:182:50:086:515:50
6:49
+0:17
25.2M
25.20 mi12:54:432:52:336:512:25
7:00
+0:11
Finish
26.22 mi13:01:162:59:066:506:33
6:26
-0:34

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

6:26 /mi

Average Pace

6:50 /mi

Slowest Pace

7:01 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

17:41

10% of race

Time at Steady Pace

2:41:25

90% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:50 /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 mi10:23:3221:226:5321:22
6:53
#5361
10K
6.21 mi10:44:4042:306:5021:08
6:48
#5304
15K
9.32 mi11:05:491:03:396:5021:09
6:48
#5247
20K
12.43 mi11:27:011:24:516:5021:12
6:49
#5100
Half
13.11 mi11:31:371:29:276:494:36
6:45
#5087
25K
15.53 mi11:48:131:46:036:5016:36
6:51
#4954
30K
18.64 mi12:09:382:07:286:5021:25
6:54
#4649
20M
20.00 mi12:19:052:16:556:519:27
6:57
#4545
21M
21.00 mi12:26:062:23:566:517:01
7:01
#4349
35K
21.75 mi12:31:122:29:026:515:06
6:49
#4335
23M
23.00 mi12:39:562:37:466:528:44
6:59
#4250
24M
24.00 mi12:46:282:44:186:516:32
6:32
#4131
40K
24.85 mi12:52:182:50:086:515:50
6:49
#4068
25.2M
25.20 mi12:54:432:52:336:512:25
7:00
#4005
Finish
26.22 mi13:01:162:59:066:506:33
6:26
#3886
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi5361495249525184(Top 19%)4792(Top 32%)4792(Top 91%)
10K6.21 mi3.10 mi5304+574904+484904+485305(Top 20%)4900(Top 32%)4900(Top 93%)
15K9.32 mi3.11 mi5247+574860+444860+445184(Top 19%)4792(Top 32%)4792(Top 91%)
20K12.43 mi3.11 mi5100+1474732+1284732+1284645(Top 17%)4323(Top 28%)4323(Top 82%)
Half13.11 mi0.68 mi5087+134719+134719+134686(Top 18%)4348(Top 29%)4348(Top 82%)
25K15.53 mi2.42 mi4954+1334605+1144605+1144532(Top 17%)4219(Top 28%)4219(Top 80%)
30K18.64 mi3.11 mi4649+3054335+2704335+2703624(Top 14%)3404(Top 22%)3404(Top 64%)
20M20.00 mi1.36 mi4545+1044238+974238+973735(Top 14%)3479(Top 23%)3479(Top 66%)
21M21.00 mi1.00 mi4349+1964063+1754063+1752242(Top 8%)2120(Top 14%)2120(Top 40%)
35K21.75 mi0.75 mi4335+144049+144049+144268(Top 16%)3903(Top 26%)3903(Top 74%)
23M23.00 mi1.25 mi4250+853977+723977+723659(Top 14%)3383(Top 22%)3383(Top 64%)
24M24.00 mi1.00 mi4131+1193868+1093868+1092256(Top 8%)2114(Top 14%)2114(Top 40%)
40K24.85 mi0.85 mi4068+633805+633805+632954(Top 11%)2721(Top 18%)2721(Top 51%)
25.2M25.20 mi0.35 mi4005+633750+553750+551815(Top 7%)1708(Top 11%)1708(Top 32%)
Finish26.22 mi1.02 mi3886+1193644+1063644+1062153(Top 8%)1998(Top 13%)1998(Top 38%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 19%
×21stories
+97ft-345ft

Overall

5184

Males

4792

M18-39

4792

5K→10K

3.1 - 6.2 mi

Top 20%
×5stories
+79ft-138ft

Overall

5305

Males

4900

M18-39

4900

10K→15K

6.2 - 9.3 mi

Top 19%
×3stories
+67ft-78ft

Overall

5184

Males

4792

M18-39

4792

15K→20K

9.3 - 12.4 mi

Top 17%
×5stories
+106ft-86ft

Overall

4645

Males

4323

M18-39

4323

20K→Half

12.4 - 13.1 mi

Top 18%
×2stories
+19ft-37ft

Overall

4686

Males

4348

M18-39

4348

Half→25K

13.1 - 15.5 mi

Top 17%
×4stories
+66ft-88ft

Overall

4532

Males

4219

M18-39

4219

25K→30K

15.5 - 18.6 mi

Top 14%
×9stories
+181ft-148ft

Overall

3624

Males

3404

M18-39

3404

30K→20M

18.6 - 20.0 mi

Top 14%
×5stories
+64ft-50ft

Overall

3735

Males

3479

M18-39

3479

20M→21M

20.0 - 21.0 mi

Top 8%
×8stories
+106ft-24ft

Overall

2242

Males

2120

M18-39

2120

21M→35K

21.0 - 21.8 mi

Top 16%
×7stories
+17ft-86ft

Overall

4268

Males

3903

M18-39

3903

35K→23M

21.8 - 23.0 mi

Top 14%
×5stories
+23ft-63ft

Overall

3659

Males

3383

M18-39

3383

23M→24M

23.0 - 24.0 mi

Top 8%
×6stories
+12ft-82ft

Overall

2256

Males

2114

M18-39

2114

24M→40K

24.0 - 24.9 mi

Top 11%
×1story
+6ft-20ft

Overall

2954

Males

2721

M18-39

2721

40K→25.2M

24.9 - 25.2 mi

Top 7%
×1story
+13ft-16ft

Overall

1815

Males

1708

M18-39

1708

25.2M→Finish

25.2 - 26.2 mi

Top 8%
×2stories
+22ft-21ft

Overall

2153

Males

1998

M18-39

1998

Passing Analysis

Category:
Athletes Passed
1964
Passed By
489
Net Change
+1475
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5361
5K → 10K234177+57#5361#5304
10K → 15K13376+57#5304#5247
15K → 20K20255+147#5247#5100
20K → Half3017+13#5100#5087
Half → 25K16835+133#5087#4954
25K → 30K32419+305#4954#4649
30K → 20M11612+104#4649#4545
20M → 21M1971+196#4545#4349
21M → 35K4531+14#4349#4335
35K → 23M11126+85#4335#4250
23M → 24M13011+119#4250#4131
24M → 40K8017+63#4131#4068
40K → 25.2M663+63#4068#4005
25.2M → Finish1289+119#4005#3886
TOTALS1964489+1475
📊

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