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BOSTON MARATHON 2023

Brett Van Dorn

Bib: 1082•M

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 3%
Gender (Male)
#0 / 15176
Top 5%
Division (M18-39)
#0 / 5285
Top 12%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
18:54
Rank: #848
Start → 5K
18:54 | 6:05/mi
10K· 6.21 mi
37:15
Rank: #716 (+132)
5K → 10K
18:21 | 5:54/mi
15K· 9.32 mi
55:57
Rank: #729 (-13)
10K → 15K
18:42 | 6:01/mi
20K· 12.43 mi
1:15:03
Rank: #748 (-19)
15K → 20K
19:06 | 6:09/mi
Half· 13.11 mi
1:19:08
Rank: #746 (+2)
20K → Half
4:05 | 5:59/mi
25K· 15.53 mi
1:34:18
Rank: #780 (-34)
Half → 25K
15:10 | 6:15/mi
30K· 18.64 mi
1:54:10
Rank: #834 (-54)
25K → 30K
19:52 | 6:24/mi
20M
2:02:49
Rank: #834
30K → 20M
8:39 | 6:22/mi
21M
2:09:29
Rank: #822 (+12)
20M → 21M
6:40 | 6:40/mi
35K· 21.75 mi
2:14:04
Rank: #826 (-4)
21M → 35K
4:35 | 6:08/mi
23M
2:22:11
Rank: #835 (-9)
35K → 23M
8:07 | 6:29/mi
24M
2:28:17
Rank: #819 (+16)
23M → 24M
6:06 | 6:06/mi
40K· 24.85 mi
2:33:31
Rank: #793 (+26)
24M → 40K
5:14 | 6:07/mi
25.2M
2:35:47
Rank: #782 (+11)
40K → 25.2M
2:16 | 6:34/mi
Finish· 26.22 mi
2:41:53
Rank: #763 (+19)
25.2M → Finish
6:06 | 5:59/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:19:08
Pace6:02 /mi
2nd Half
Distance13.11 mi
Time1:22:45
Pace6:19 /mi
📊Positive Split: 4.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:19:1418:546:0518:54
6:05
-
10K
6.21 mi10:37:3537:156:0018:21
5:54
-0:11
15K
9.32 mi10:56:1755:576:0018:42
6:01
+0:07
20K
12.43 mi11:15:231:15:036:0219:06
6:09
+0:08
Half
13.11 mi11:19:281:19:086:024:05
5:59
-0:10
25K
15.53 mi11:34:381:34:186:0415:10
6:15
+0:16
30K
18.64 mi11:54:301:54:106:0719:52
6:24
+0:09
20M
20.00 mi12:03:092:02:496:088:39
6:22
-0:02
21M
21.00 mi12:09:492:09:296:106:40
6:40
+0:18
35K
21.75 mi12:14:242:14:046:104:35
6:08
-0:32
23M
23.00 mi12:22:312:22:116:118:07
6:29
+0:21
24M
24.00 mi12:28:372:28:176:116:06
6:06
-0:23
40K
24.85 mi12:33:512:33:316:115:14
6:07
+0:01
25.2M
25.20 mi12:36:072:35:476:112:16
6:34
+0:27
Finish
26.22 mi12:42:132:41:536:116:06
5:59
-0:35

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

5:54 /mi

Average Pace

6:11 /mi

Slowest Pace

6:40 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:32:57

94% of race

Time at Steady Pace

8:56

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:10 /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 mi10:19:1418:546:0518:54
6:05
#848
10K
6.21 mi10:37:3537:156:0018:21
5:54
#716
15K
9.32 mi10:56:1755:576:0018:42
6:01
#729
20K
12.43 mi11:15:231:15:036:0219:06
6:09
#748
Half
13.11 mi11:19:281:19:086:024:05
5:59
#746
25K
15.53 mi11:34:381:34:186:0415:10
6:15
#780
30K
18.64 mi11:54:301:54:106:0719:52
6:24
#834
20M
20.00 mi12:03:092:02:496:088:39
6:22
#834
21M
21.00 mi12:09:492:09:296:106:40
6:40
#822
35K
21.75 mi12:14:242:14:046:104:35
6:08
#826
23M
23.00 mi12:22:312:22:116:118:07
6:29
#835
24M
24.00 mi12:28:372:28:176:116:06
6:06
#819
40K
24.85 mi12:33:512:33:316:115:14
6:07
#793
25.2M
25.20 mi12:36:072:35:476:112:16
6:34
#782
Finish
26.22 mi12:42:132:41:536:116:06
5:59
#763
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi848798798752(Top 3%)708(Top 5%)708(Top 13%)
10K6.21 mi3.10 mi716+132672+126672+126603(Top 2%)560(Top 4%)560(Top 11%)
15K9.32 mi3.11 mi729-13685-13685-13752(Top 3%)708(Top 5%)708(Top 13%)
20K12.43 mi3.11 mi748-19705-20705-20899(Top 3%)854(Top 6%)854(Top 16%)
Half13.11 mi0.68 mi746+2703+2703+2719(Top 3%)678(Top 4%)678(Top 13%)
25K15.53 mi2.42 mi780-34735-32735-321151(Top 4%)1097(Top 7%)1097(Top 21%)
30K18.64 mi3.11 mi834-54790-55790-551186(Top 4%)1130(Top 7%)1130(Top 21%)
20M20.00 mi1.36 mi834789+1789+11024(Top 4%)980(Top 6%)980(Top 19%)
21M21.00 mi1.00 mi822+12777+12777+12997(Top 4%)949(Top 6%)949(Top 18%)
35K21.75 mi0.75 mi826-4782-5782-5992(Top 4%)942(Top 6%)942(Top 18%)
23M23.00 mi1.25 mi835-9790-8790-81348(Top 5%)1277(Top 8%)1277(Top 24%)
24M24.00 mi1.00 mi819+16774+16774+16759(Top 3%)719(Top 5%)719(Top 14%)
40K24.85 mi0.85 mi793+26750+24750+24522(Top 2%)493(Top 3%)493(Top 9%)
25.2M25.20 mi0.35 mi782+11739+11739+11610(Top 2%)577(Top 4%)577(Top 11%)
Finish26.22 mi1.02 mi763+19720+19720+19688(Top 3%)657(Top 4%)657(Top 12%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 3%
×21stories
+97ft-345ft

Overall

752

Males

708

M18-39

708

5K→10K

3.1 - 6.2 mi

Top 2%
×5stories
+79ft-138ft

Overall

603

Males

560

M18-39

560

10K→15K

6.2 - 9.3 mi

Top 3%
×3stories
+67ft-78ft

Overall

752

Males

708

M18-39

708

15K→20K

9.3 - 12.4 mi

Top 3%
×5stories
+106ft-86ft

Overall

899

Males

854

M18-39

854

20K→Half

12.4 - 13.1 mi

Top 3%
×2stories
+19ft-37ft

Overall

719

Males

678

M18-39

678

Half→25K

13.1 - 15.5 mi

Top 4%
×4stories
+66ft-88ft

Overall

1151

Males

1097

M18-39

1097

25K→30K

15.5 - 18.6 mi

Top 4%
×9stories
+181ft-148ft

Overall

1186

Males

1130

M18-39

1130

30K→20M

18.6 - 20.0 mi

Top 4%
×5stories
+64ft-50ft

Overall

1024

Males

980

M18-39

980

20M→21M

20.0 - 21.0 mi

Top 4%
×8stories
+106ft-24ft

Overall

997

Males

949

M18-39

949

21M→35K

21.0 - 21.8 mi

Top 4%
×7stories
+17ft-86ft

Overall

992

Males

942

M18-39

942

35K→23M

21.8 - 23.0 mi

Top 5%
×5stories
+23ft-63ft

Overall

1348

Males

1277

M18-39

1277

23M→24M

23.0 - 24.0 mi

Top 3%
×6stories
+12ft-82ft

Overall

759

Males

719

M18-39

719

24M→40K

24.0 - 24.9 mi

Top 2%
×1story
+6ft-20ft

Overall

522

Males

493

M18-39

493

40K→25.2M

24.9 - 25.2 mi

Top 2%
×1story
+13ft-16ft

Overall

610

Males

577

M18-39

577

25.2M→Finish

25.2 - 26.2 mi

Top 3%
×2stories
+22ft-21ft

Overall

688

Males

657

M18-39

657

Passing Analysis

Category:
Athletes Passed
339
Passed By
254
Net Change
+85
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#848
5K → 10K1353+132#848#716
10K → 15K1831-13#716#729
15K → 20K1332-19#729#748
20K → Half64+2#748#746
Half → 25K1953-34#746#780
25K → 30K1165-54#780#834
30K → 20M13130#834#834
20M → 21M208+12#834#822
21M → 35K48-4#822#826
35K → 23M1625-9#826#835
23M → 24M204+16#835#819
24M → 40K282+26#819#793
40K → 25.2M121+11#793#782
25.2M → Finish245+19#782#763
TOTALS339254+85
📊

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