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BOSTON MARATHON 2023

Vincent Lefebvre

Bib: 5391•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 19%
Gender (Male)
#0 / 15176
Top 30%
Masters (Masters Men)
#0 / 9891
Top 16%
Division (M45-49)
#0 / 2252
Top 20%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:57
Rank: #4071
Start → 5K
20:57 | 6:45/mi
10K· 6.21 mi
42:17
Rank: #5005 (-934)
5K → 10K
21:20 | 6:52/mi
15K· 9.32 mi
1:03:23
Rank: #5004 (+1)
10K → 15K
21:06 | 6:47/mi
20K· 12.43 mi
1:24:37
Rank: #4926 (+78)
15K → 20K
21:14 | 6:50/mi
Half· 13.11 mi
1:29:16
Rank: #4948 (-22)
20K → Half
4:39 | 6:49/mi
25K· 15.53 mi
1:45:55
Rank: #4874 (+74)
Half → 25K
16:39 | 6:52/mi
30K· 18.64 mi
2:07:51
Rank: #4824 (+50)
25K → 30K
21:56 | 7:04/mi
20M
2:17:33
Rank: #4810 (+14)
30K → 20M
9:42 | 7:08/mi
21M
2:25:10
Rank: #4822 (-12)
20M → 21M
7:37 | 7:37/mi
35K· 21.75 mi
2:30:24
Rank: #4837 (-15)
21M → 35K
5:14 | 7:00/mi
23M
2:39:35
Rank: #4840 (-3)
35K → 23M
9:11 | 7:20/mi
24M
2:46:50
Rank: #4868 (-28)
23M → 24M
7:15 | 7:15/mi
40K· 24.85 mi
2:53:21
Rank: #4931 (-63)
24M → 40K
6:31 | 7:37/mi
25.2M
2:56:11
Rank: #4952 (-21)
40K → 25.2M
2:50 | 8:13/mi
Finish· 26.22 mi
3:03:49
Rank: #5014 (-62)
25.2M → Finish
7:38 | 7:29/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:29:16
Pace6:49 /mi
2nd Half
Distance13.11 mi
Time1:34:33
Pace7:13 /mi
📊Positive Split: 5.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:23:4420:576:4520:57
6:45
-
10K
6.21 mi10:45:0442:176:4821:20
6:52
+0:07
15K
9.32 mi11:06:101:03:236:4821:06
6:47
-0:05
20K
12.43 mi11:27:241:24:376:4921:14
6:50
+0:03
Half
13.11 mi11:32:031:29:166:494:39
6:49
-0:01
25K
15.53 mi11:48:421:45:556:4916:39
6:52
+0:03
30K
18.64 mi12:10:382:07:516:5221:56
7:04
+0:12
20M
20.00 mi12:20:202:17:336:539:42
7:08
+0:04
21M
21.00 mi12:27:572:25:106:557:37
7:37
+0:29
35K
21.75 mi12:33:112:30:246:555:14
7:00
-0:37
23M
23.00 mi12:42:222:39:356:569:11
7:20
+0:20
24M
24.00 mi12:49:372:46:506:577:15
7:15
-0:05
40K
24.85 mi12:56:082:53:216:586:31
7:37
+0:22
25.2M
25.20 mi12:58:582:56:116:592:50
8:13
+0:36
Finish
26.22 mi13:06:363:03:497:017:38
7:29
-0:44

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

6:45 /mi

Average Pace

7:01 /mi

Slowest Pace

8:13 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:07:56

37% of race

Time at Steady Pace

1:22:06

45% of race

Time at Slower Pace

33:47

18% of race

Average Pace: 7:01 /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 mi10:23:4420:576:4520:57
6:45
#4071
10K
6.21 mi10:45:0442:176:4821:20
6:52
#5005
15K
9.32 mi11:06:101:03:236:4821:06
6:47
#5004
20K
12.43 mi11:27:241:24:376:4921:14
6:50
#4926
Half
13.11 mi11:32:031:29:166:494:39
6:49
#4948
25K
15.53 mi11:48:421:45:556:4916:39
6:52
#4874
30K
18.64 mi12:10:382:07:516:5221:56
7:04
#4824
20M
20.00 mi12:20:202:17:336:539:42
7:08
#4810
21M
21.00 mi12:27:572:25:106:557:37
7:37
#4822
35K
21.75 mi12:33:112:30:246:555:14
7:00
#4837
23M
23.00 mi12:42:222:39:356:569:11
7:20
#4840
24M
24.00 mi12:49:372:46:506:577:15
7:15
#4868
40K
24.85 mi12:56:082:53:216:586:31
7:37
#4931
25.2M
25.20 mi12:58:582:56:116:592:50
8:13
#4952
Finish
26.22 mi13:06:363:03:497:017:38
7:29
#5014
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi4071381838185022(Top 19%)4662(Top 31%)4662(Top 207%)
10K6.21 mi3.10 mi5005-9344642-8244642-8245874(Top 22%)5360(Top 35%)5360(Top 238%)
15K9.32 mi3.11 mi5004+14646-44646-45022(Top 19%)4662(Top 31%)4662(Top 207%)
20K12.43 mi3.11 mi4926+784586+604586+604769(Top 18%)4431(Top 29%)4431(Top 197%)
Half13.11 mi0.68 mi4948-224603-174603-175362(Top 20%)4945(Top 33%)4945(Top 220%)
25K15.53 mi2.42 mi4874+744531+724531+724722(Top 18%)4385(Top 29%)4385(Top 195%)
30K18.64 mi3.11 mi4824+504488+434488+434722(Top 18%)4359(Top 29%)4359(Top 194%)
20M20.00 mi1.36 mi4810+144472+164472+164799(Top 18%)4379(Top 29%)4379(Top 194%)
21M21.00 mi1.00 mi4822-124479-74479-75168(Top 19%)4593(Top 30%)4593(Top 204%)
35K21.75 mi0.75 mi4837-154491-124491-125290(Top 20%)4718(Top 31%)4718(Top 210%)
23M23.00 mi1.25 mi4840-3449144915477(Top 21%)4814(Top 32%)4814(Top 214%)
24M24.00 mi1.00 mi4868-284506-154506-156010(Top 23%)5108(Top 34%)5108(Top 227%)
40K24.85 mi0.85 mi4931-634544-384544-387408(Top 28%)5868(Top 39%)5868(Top 261%)
25.2M25.20 mi0.35 mi4952-214559-154559-157681(Top 29%)5957(Top 39%)5957(Top 265%)
Finish26.22 mi1.02 mi5014-624608-494608-498429(Top 32%)6405(Top 42%)6405(Top 284%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 19%
×21stories
+97ft-345ft

Overall

5022

Males

4662

M45-49

4662

5K→10K

3.1 - 6.2 mi

Top 22%
×5stories
+79ft-138ft

Overall

5874

Males

5360

M45-49

5360

10K→15K

6.2 - 9.3 mi

Top 19%
×3stories
+67ft-78ft

Overall

5022

Males

4662

M45-49

4662

15K→20K

9.3 - 12.4 mi

Top 18%
×5stories
+106ft-86ft

Overall

4769

Males

4431

M45-49

4431

20K→Half

12.4 - 13.1 mi

Top 20%
×2stories
+19ft-37ft

Overall

5362

Males

4945

M45-49

4945

Half→25K

13.1 - 15.5 mi

Top 18%
×4stories
+66ft-88ft

Overall

4722

Males

4385

M45-49

4385

25K→30K

15.5 - 18.6 mi

Top 18%
×9stories
+181ft-148ft

Overall

4722

Males

4359

M45-49

4359

30K→20M

18.6 - 20.0 mi

Top 18%
×5stories
+64ft-50ft

Overall

4799

Males

4379

M45-49

4379

20M→21M

20.0 - 21.0 mi

Top 19%
×8stories
+106ft-24ft

Overall

5168

Males

4593

M45-49

4593

21M→35K

21.0 - 21.8 mi

Top 20%
×7stories
+17ft-86ft

Overall

5290

Males

4718

M45-49

4718

35K→23M

21.8 - 23.0 mi

Top 21%
×5stories
+23ft-63ft

Overall

5477

Males

4814

M45-49

4814

23M→24M

23.0 - 24.0 mi

Top 23%
×6stories
+12ft-82ft

Overall

6010

Males

5108

M45-49

5108

24M→40K

24.0 - 24.9 mi

Top 28%
×1story
+6ft-20ft

Overall

7408

Males

5868

M45-49

5868

40K→25.2M

24.9 - 25.2 mi

Top 29%
×1story
+13ft-16ft

Overall

7681

Males

5957

M45-49

5957

25.2M→Finish

25.2 - 26.2 mi

Top 32%
×2stories
+22ft-21ft

Overall

8429

Males

6405

M45-49

6405

Passing Analysis

Category:
Athletes Passed
912
Passed By
1855
Net Change
-943
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4071
5K → 10K21955-934#4071#5005
10K → 15K105104+1#5005#5004
15K → 20K14769+78#5004#4926
20K → Half1234-22#4926#4948
Half → 25K13460+74#4948#4874
25K → 30K164114+50#4874#4824
30K → 20M7056+14#4824#4810
20M → 21M4961-12#4810#4822
21M → 35K3853-15#4822#4837
35K → 23M7780-3#4837#4840
23M → 24M4068-28#4840#4868
24M → 40K2285-63#4868#4931
40K → 25.2M1334-21#4931#4952
25.2M → Finish2082-62#4952#5014
TOTALS9121855-943
📊

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