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BOSTON MARATHON 2023

Lennart Osses

Bib: 3648•M

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
18:55
Rank: #866
Start → 5K
6:05/mi
18:55 split
10K· 6.21 mi
37:40
Rank: #873 (-7)
5K → 10K
6:02/mi
18:45 split
15K· 9.32 mi
56:19
Rank: #812 (+61)
10K → 15K
6:00/mi
18:39 split
20K· 12.43 mi
1:15:17
Rank: #793 (+19)
15K → 20K
6:06/mi
18:58 split
Half· 13.11 mi
1:19:23
Rank: #793
20K → Half
6:01/mi
4:06 split
25K· 15.53 mi
1:34:15
Rank: #767 (+26)
Half → 25K
6:08/mi
14:52 split
30K· 18.64 mi
1:53:56
Rank: #799 (-32)
25K → 30K
6:20/mi
19:41 split
20M
2:02:35
Rank: #809 (-10)
30K → 20M
6:22/mi
8:39 split
21M
2:09:16
Rank: #807 (+2)
20M → 21M
6:41/mi
6:41 split
35K· 21.75 mi
2:13:55
Rank: #813 (-6)
21M → 35K
6:13/mi
4:39 split
23M
2:21:57
Rank: #812 (+1)
35K → 23M
6:25/mi
8:02 split
24M
2:28:09
Rank: #804 (+8)
23M → 24M
6:12/mi
6:12 split
40K· 24.85 mi
2:33:36
Rank: #801 (+3)
24M → 40K
6:22/mi
5:27 split
25.2M
2:36:00
Rank: #798 (+3)
40K → 25.2M
6:58/mi
2:24 split
Finish· 26.22 mi
2:42:28
Rank: #809 (-11)
25.2M → Finish
6:21/mi
6:28 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:19:23
Pace6:03 /mi
2nd Half
Distance13.11 mi
Time1:23:05
Pace6:20 /mi
📊Positive Split: 4.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:20:1718:556:0518:55
6:05
-
10K
6.21 mi10:39:0237:406:0418:45
6:02
-0:03
15K
9.32 mi10:57:4156:196:0318:39
6:00
-0:02
20K
12.43 mi11:16:391:15:176:0318:58
6:06
+0:06
Half
13.11 mi11:20:451:19:236:034:06
6:01
-0:05
25K
15.53 mi11:35:371:34:156:0414:52
6:08
+0:07
30K
18.64 mi11:55:181:53:566:0719:41
6:20
+0:12
20M
20.00 mi12:03:572:02:356:088:39
6:22
+0:02
21M
21.00 mi12:10:382:09:166:096:41
6:41
+0:19
35K
21.75 mi12:15:172:13:556:094:39
6:13
-0:28
23M
23.00 mi12:23:192:21:576:108:02
6:25
+0:12
24M
24.00 mi12:29:312:28:096:106:12
6:12
-0:13
40K
24.85 mi12:34:582:33:366:115:27
6:22
+0:10
25.2M
25.20 mi12:37:222:36:006:112:24
6:58
+0:36
Finish
26.22 mi12:43:502:42:286:126:28
6:21
-0:37

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

6:00 /mi

Average Pace

6:12 /mi

Slowest Pace

6:58 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:33:23

94% of race

Time at Steady Pace

9:05

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:12 /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 mi10:20:1718:556:0518:55
6:05
#866
10K
6.21 mi10:39:0237:406:0418:45
6:02
#873
15K
9.32 mi10:57:4156:196:0318:39
6:00
#812
20K
12.43 mi11:16:391:15:176:0318:58
6:06
#793
Half
13.11 mi11:20:451:19:236:034:06
6:01
#793
25K
15.53 mi11:35:371:34:156:0414:52
6:08
#767
30K
18.64 mi11:55:181:53:566:0719:41
6:20
#799
20M
20.00 mi12:03:572:02:356:088:39
6:22
#809
21M
21.00 mi12:10:382:09:166:096:41
6:41
#807
35K
21.75 mi12:15:172:13:556:094:39
6:13
#813
23M
23.00 mi12:23:192:21:576:108:02
6:25
#812
24M
24.00 mi12:29:312:28:096:106:12
6:12
#804
40K
24.85 mi12:34:582:33:366:115:27
6:22
#801
25.2M
25.20 mi12:37:222:36:006:112:24
6:58
#798
Finish
26.22 mi12:43:502:42:286:126:28
6:21
#809
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi866813813723(Top 3%)680(Top 4%)680(Top 13%)
10K6.21 mi3.10 mi873-7823-10823-10896(Top 3%)847(Top 6%)847(Top 16%)
15K9.32 mi3.11 mi812+61765+58765+58723(Top 3%)680(Top 4%)680(Top 13%)
20K12.43 mi3.11 mi793+19748+17748+17793(Top 3%)749(Top 5%)749(Top 14%)
Half13.11 mi0.68 mi793748748786(Top 3%)745(Top 5%)745(Top 14%)
25K15.53 mi2.42 mi767+26723+25723+25817(Top 3%)774(Top 5%)774(Top 15%)
30K18.64 mi3.11 mi799-32756-33756-331006(Top 4%)955(Top 6%)955(Top 18%)
20M20.00 mi1.36 mi809-10766-10766-101026(Top 4%)982(Top 6%)982(Top 19%)
21M21.00 mi1.00 mi807+2763+3763+31033(Top 4%)984(Top 6%)984(Top 19%)
35K21.75 mi0.75 mi813-6769-6769-61269(Top 5%)1206(Top 8%)1206(Top 23%)
23M23.00 mi1.25 mi812+1768+1768+11136(Top 4%)1072(Top 7%)1072(Top 20%)
24M24.00 mi1.00 mi804+8759+9759+91010(Top 4%)956(Top 6%)956(Top 18%)
40K24.85 mi0.85 mi801+3756+3756+31109(Top 4%)1048(Top 7%)1048(Top 20%)
25.2M25.20 mi0.35 mi798+3754+2754+21569(Top 6%)1475(Top 10%)1475(Top 28%)
Finish26.22 mi1.02 mi809-11765-11765-111780(Top 7%)1664(Top 11%)1664(Top 31%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 3%
×21stories
+97ft-345ft

Overall

723

Males

680

M18-39

680

5K→10K

3.1 - 6.2 mi

Top 3%
×5stories
+79ft-138ft

Overall

896

Males

847

M18-39

847

10K→15K

6.2 - 9.3 mi

Top 3%
×3stories
+67ft-78ft

Overall

723

Males

680

M18-39

680

15K→20K

9.3 - 12.4 mi

Top 3%
×5stories
+106ft-86ft

Overall

793

Males

749

M18-39

749

20K→Half

12.4 - 13.1 mi

Top 3%
×2stories
+19ft-37ft

Overall

786

Males

745

M18-39

745

Half→25K

13.1 - 15.5 mi

Top 3%
×4stories
+66ft-88ft

Overall

817

Males

774

M18-39

774

25K→30K

15.5 - 18.6 mi

Top 4%
×9stories
+181ft-148ft

Overall

1006

Males

955

M18-39

955

30K→20M

18.6 - 20.0 mi

Top 4%
×5stories
+64ft-50ft

Overall

1026

Males

982

M18-39

982

20M→21M

20.0 - 21.0 mi

Top 4%
×8stories
+106ft-24ft

Overall

1033

Males

984

M18-39

984

21M→35K

21.0 - 21.8 mi

Top 5%
×7stories
+17ft-86ft

Overall

1269

Males

1206

M18-39

1206

35K→23M

21.8 - 23.0 mi

Top 4%
×5stories
+23ft-63ft

Overall

1136

Males

1072

M18-39

1072

23M→24M

23.0 - 24.0 mi

Top 4%
×6stories
+12ft-82ft

Overall

1010

Males

956

M18-39

956

24M→40K

24.0 - 24.9 mi

Top 4%
×1story
+6ft-20ft

Overall

1109

Males

1048

M18-39

1048

40K→25.2M

24.9 - 25.2 mi

Top 6%
×1story
+13ft-16ft

Overall

1569

Males

1475

M18-39

1475

25.2M→Finish

25.2 - 26.2 mi

Top 7%
×2stories
+22ft-21ft

Overall

1780

Males

1664

M18-39

1664

Passing Analysis

Category:
Athletes Passed
285
Passed By
228
Net Change
+57
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#866
5K → 10K4249-7#866#873
10K → 15K654+61#873#812
15K → 20K3516+19#812#793
20K → Half660#793#793
Half → 25K3610+26#793#767
25K → 30K1446-32#767#799
30K → 20M1020-10#799#809
20M → 21M1311+2#809#807
21M → 35K28-6#807#813
35K → 23M1817+1#813#812
23M → 24M146+8#812#804
24M → 40K1310+3#804#801
40K → 25.2M74+3#801#798
25.2M → Finish1021-11#798#809
TOTALS285228+57
📊

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