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BOSTON MARATHON 2024

Shazan Lefebvre

Bib: 1655•M

QC

0:00
0:00
/ mi
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Overall
#0 / 25550
Top 2%
Gender (Male)
#0 / 14578
Top 3%
Division (M18-39)
#0 / 4849
Top 8%
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
18:53
Rank: #1168
Start → 5K
18:53 | 6:05/mi
10K· 6.21 mi
37:38
Rank: #1036 (+132)
5K → 10K
18:45 | 6:02/mi
15K· 9.32 mi
56:31
Rank: #1004 (+32)
10K → 15K
18:53 | 6:05/mi
20K· 12.43 mi
1:15:27
Rank: #924 (+80)
15K → 20K
18:56 | 6:06/mi
Half· 13.11 mi
1:19:31
Rank: #909 (+15)
20K → Half
4:04 | 5:58/mi
25K· 15.53 mi
1:34:12
Rank: #829 (+80)
Half → 25K
14:41 | 6:03/mi
30K· 18.64 mi
1:53:37
Rank: #744 (+85)
25K → 30K
19:25 | 6:15/mi
20M
2:01:56
Rank: #682 (+62)
30K → 20M
8:19 | 6:07/mi
21M
2:08:25
Rank: #626 (+56)
20M → 21M
6:29 | 6:29/mi
35K· 21.75 mi
2:12:53
Rank: #598 (+28)
21M → 35K
4:28 | 5:58/mi
23M
2:20:39
Rank: #545 (+53)
35K → 23M
7:46 | 6:12/mi
24M
2:26:40
Rank: #504 (+41)
23M → 24M
6:01 | 6:01/mi
40K· 24.85 mi
2:31:52
Rank: #477 (+27)
24M → 40K
5:12 | 6:05/mi
25.2M
2:34:11
Rank: #468 (+9)
40K → 25.2M
2:19 | 6:43/mi
Finish· 26.22 mi
2:40:21
Rank: #462 (+6)
25.2M → Finish
6:10 | 6:03/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:19:31
Pace6:04 /mi
2nd Half
Distance13.11 mi
Time1:20:50
Pace6:10 /mi
📊Positive Split: 1.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:19:2218:536:0518:53
6:05
-
10K
6.21 mi10:38:0737:386:0318:45
6:02
-0:03
15K
9.32 mi10:57:0056:316:0418:53
6:05
+0:03
20K
12.43 mi11:15:561:15:276:0418:56
6:06
+0:01
Half
13.11 mi11:20:001:19:316:044:04
5:58
-0:08
25K
15.53 mi11:34:411:34:126:0414:41
6:03
+0:05
30K
18.64 mi11:54:061:53:376:0619:25
6:15
+0:12
20M
20.00 mi12:02:252:01:566:068:19
6:07
-0:08
21M
21.00 mi12:08:542:08:256:076:29
6:29
+0:22
35K
21.75 mi12:13:222:12:536:074:28
5:58
-0:31
23M
23.00 mi12:21:082:20:396:077:46
6:12
+0:14
24M
24.00 mi12:27:092:26:406:076:01
6:01
-0:11
40K
24.85 mi12:32:212:31:526:075:12
6:05
+0:04
25.2M
25.20 mi12:34:402:34:116:072:19
6:43
+0:38
Finish
26.22 mi12:40:502:40:216:076:10
6:03
-0:40

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

5:58 /mi

Average Pace

6:07 /mi

Slowest Pace

6:43 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:38:02

99% of race

Time at Steady Pace

2:19

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:07 /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 mi10:19:2218:536:0518:53
6:05
#1168
10K
6.21 mi10:38:0737:386:0318:45
6:02
#1036
15K
9.32 mi10:57:0056:316:0418:53
6:05
#1004
20K
12.43 mi11:15:561:15:276:0418:56
6:06
#924
Half
13.11 mi11:20:001:19:316:044:04
5:58
#909
25K
15.53 mi11:34:411:34:126:0414:41
6:03
#829
30K
18.64 mi11:54:061:53:376:0619:25
6:15
#744
20M
20.00 mi12:02:252:01:566:068:19
6:07
#682
21M
21.00 mi12:08:542:08:256:076:29
6:29
#626
35K
21.75 mi12:13:222:12:536:074:28
5:58
#598
23M
23.00 mi12:21:082:20:396:077:46
6:12
#545
24M
24.00 mi12:27:092:26:406:076:01
6:01
#504
40K
24.85 mi12:32:212:31:526:075:12
6:05
#477
25.2M
25.20 mi12:34:402:34:116:072:19
6:43
#468
Finish
26.22 mi12:40:502:40:216:076:10
6:03
#462
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi116811291129978(Top 4%)942(Top 6%)942(Top 19%)
10K6.21 mi3.10 mi1036+132998+131998+131958(Top 4%)921(Top 6%)921(Top 19%)
15K9.32 mi3.11 mi1004+32966+32966+32978(Top 4%)942(Top 6%)942(Top 19%)
20K12.43 mi3.11 mi924+80889+77889+77791(Top 3%)760(Top 5%)760(Top 16%)
Half13.11 mi0.68 mi909+15874+15874+15658(Top 3%)633(Top 4%)633(Top 13%)
25K15.53 mi2.42 mi829+80796+78796+78566(Top 2%)537(Top 4%)537(Top 11%)
30K18.64 mi3.11 mi744+85714+82714+82549(Top 2%)521(Top 4%)521(Top 11%)
20M20.00 mi1.36 mi682+62652+62652+62312(Top 1%)286(Top 2%)286(Top 6%)
21M21.00 mi1.00 mi626+56597+55597+55326(Top 1%)304(Top 2%)304(Top 6%)
35K21.75 mi0.75 mi598+28569+28569+28347(Top 1%)321(Top 2%)321(Top 7%)
23M23.00 mi1.25 mi545+53517+52517+52328(Top 1%)306(Top 2%)306(Top 6%)
24M24.00 mi1.00 mi504+41477+40477+40280(Top 1%)255(Top 2%)255(Top 5%)
40K24.85 mi0.85 mi477+27450+27450+27247(Top 1.0%)223(Top 2%)223(Top 5%)
25.2M25.20 mi0.35 mi468+9441+9441+9289(Top 1%)267(Top 2%)267(Top 6%)
Finish26.22 mi1.02 mi462+6436+5436+5488(Top 2%)454(Top 3%)454(Top 9%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 4%
×21stories
+97ft-345ft

Overall

978

Males

942

M18-39

942

5K→10K

3.1 - 6.2 mi

Top 4%
×5stories
+79ft-138ft

Overall

958

Males

921

M18-39

921

10K→15K

6.2 - 9.3 mi

Top 4%
×3stories
+67ft-78ft

Overall

978

Males

942

M18-39

942

15K→20K

9.3 - 12.4 mi

Top 3%
×5stories
+106ft-86ft

Overall

791

Males

760

M18-39

760

20K→Half

12.4 - 13.1 mi

Top 3%
×2stories
+19ft-37ft

Overall

658

Males

633

M18-39

633

Half→25K

13.1 - 15.5 mi

Top 2%
×4stories
+66ft-88ft

Overall

566

Males

537

M18-39

537

25K→30K

15.5 - 18.6 mi

Top 2%
×9stories
+181ft-148ft

Overall

549

Males

521

M18-39

521

30K→20M

18.6 - 20.0 mi

Top 1%
×5stories
+64ft-50ft

Overall

312

Males

286

M18-39

286

20M→21M

20.0 - 21.0 mi

Top 1%
×8stories
+106ft-24ft

Overall

326

Males

304

M18-39

304

21M→35K

21.0 - 21.8 mi

Top 1%
×7stories
+17ft-86ft

Overall

347

Males

321

M18-39

321

35K→23M

21.8 - 23.0 mi

Top 1%
×5stories
+23ft-63ft

Overall

328

Males

306

M18-39

306

23M→24M

23.0 - 24.0 mi

Top 1%
×6stories
+12ft-82ft

Overall

280

Males

255

M18-39

255

24M→40K

24.0 - 24.9 mi

Top 1.0%
×1story
+6ft-20ft

Overall

247

Males

223

M18-39

223

40K→25.2M

24.9 - 25.2 mi

Top 1%
×1story
+13ft-16ft

Overall

289

Males

267

M18-39

267

25.2M→Finish

25.2 - 26.2 mi

Top 2%
×2stories
+22ft-21ft

Overall

488

Males

454

M18-39

454

Passing Analysis

Category:
Athletes Passed
786
Passed By
80
Net Change
+706
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1168
5K → 10K14715+132#1168#1036
10K → 15K5927+32#1036#1004
15K → 20K9010+80#1004#924
20K → Half150+15#924#909
Half → 25K833+80#909#829
25K → 30K9510+85#829#744
30K → 20M631+62#744#682
20M → 21M571+56#682#626
21M → 35K280+28#626#598
35K → 23M552+53#598#545
23M → 24M421+41#545#504
24M → 40K292+27#504#477
40K → 25.2M112+9#477#468
25.2M → Finish126+6#468#462
TOTALS78680+706
📊

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