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BOSTON MARATHON 2024

Jamas Lafreniere

Bib: 27497•M

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Gender (Male)
#0 / 14578
Masters (Masters Men)
#0 / 9729
Division (M40-44)
#0 / 2009
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
10:08/mi
31:29
↑ 97↓ 3451.5%
10K· 6.21 mi
10:06/mi
1:02:53
↑ 79↓ 1380.4%
15K· 9.32 mi
9:56/mi
1:33:44
↑ 67↓ 78
20K· 12.43 mi
11:40/mi
2:09:58
↑ 106↓ 860.1%
Half· 13.11 mi
9:39/mi
2:16:33
↑ 19↓ 370.5%
25K· 15.53 mi
10:16/mi
2:41:27
↑ 66↓ 880.2%
30K· 18.64 mi
11:25/mi
3:16:55
↑ 181↓ 1480.2%
20M
10:20/mi
3:30:57
↑ 64↓ 500.2%
21M
12:35/mi
3:43:32
↑ 106↓ 241.6%
35K· 21.75 mi
11:56/mi
3:52:28
↑ 17↓ 861.7%
23M
11:37/mi
4:07:01
↑ 23↓ 630.6%
24M
10:52/mi
4:17:53
↓ 821.3%
40K· 24.85 mi
11:41/mi
4:27:52
↓ 200.3%
25.2M
13:09/mi
4:32:24
↑ 13↓ 160.2%
Finish· 26.22 mi
10:30/mi
4:43:06
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:16:33
Pace10:25 /mi
2nd Half
Distance13.11 mi
Time2:26:33
Pace11:11 /mi
📊Positive Split: 7.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:50:2831:2910:0831:29
10:08
-
10K
6.21 mi12:21:521:02:5310:0731:24
10:06
-0:02
15K
9.32 mi12:52:431:33:4410:0330:51
9:56
-0:10
20K
12.43 mi13:28:572:09:5810:2736:14
11:40
+1:44
Half
13.11 mi13:35:322:16:3310:256:35
9:39
-2:01
25K
15.53 mi14:00:262:41:2710:2424:54
10:16
+0:37
30K
18.64 mi14:35:543:16:5510:3435:28
11:25
+1:09
20M
20.00 mi14:49:563:30:5710:3314:02
10:20
-1:05
21M
21.00 mi15:02:313:43:3210:3912:35
12:35
+2:15
35K
21.75 mi15:11:273:52:2810:418:56
11:56
-0:39
23M
23.00 mi15:26:004:07:0110:4414:33
11:37
-0:19
24M
24.00 mi15:36:524:17:5310:4510:52
10:52
-0:45
40K
24.85 mi15:46:514:27:5210:479:59
11:41
+0:49
25.2M
25.20 mi15:51:234:32:2410:494:32
13:09
+1:28
Finish
26.22 mi16:02:054:43:0610:4810:42
10:30
-2:39

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

9:39 /mi

Average Pace

10:48 /mi

Slowest Pace

13:09 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:19:15

49% of race

Time at Steady Pace

21:34

8% of race

Time at Slower Pace

2:02:17

43% of race

Average Pace: 10:48 /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 mi11:50:2831:2910:0831:29
10:08
#23277
10K
6.21 mi12:21:521:02:5310:0731:24
10:06
#23036
15K
9.32 mi12:52:431:33:4410:0330:51
9:56
#22607
20K
12.43 mi13:28:572:09:5810:2736:14
11:40
#22937
Half
13.11 mi13:35:322:16:3310:256:35
9:39
#22820
25K
15.53 mi14:00:262:41:2710:2424:54
10:16
#22398
30K
18.64 mi14:35:543:16:5510:3435:28
11:25
#22094
20M
20.00 mi14:49:563:30:5710:3314:02
10:20
#21801
21M
21.00 mi15:02:313:43:3210:3912:35
12:35
#21704
35K
21.75 mi15:11:273:52:2810:418:56
11:56
#21694
23M
23.00 mi15:26:004:07:0110:4414:33
11:37
#21574
24M
24.00 mi15:36:524:17:5310:4510:52
10:52
#21452
40K
24.85 mi15:46:514:27:5210:479:59
11:41
#21405
25.2M
25.20 mi15:51:234:32:2410:494:32
13:09
#21376
Finish
26.22 mi16:02:054:43:0610:4810:42
10:30
#21313
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi23277136801368021756(Top 85%)12974(Top 89%)12974(Top 646%)
10K6.21 mi3.10 mi23036+24113549+13113549+13122757(Top 89%)13396(Top 92%)13396(Top 667%)
15K9.32 mi3.11 mi22607+42913367+18213367+18221756(Top 85%)12974(Top 89%)12974(Top 646%)
20K12.43 mi3.11 mi22937-33013513-14613513-14623577(Top 92%)13767(Top 94%)13767(Top 685%)
Half13.11 mi0.68 mi22820+11713455+5813455+5820525(Top 80%)12328(Top 85%)12328(Top 614%)
25K15.53 mi2.42 mi22398+42213231+22413231+22419833(Top 78%)11965(Top 82%)11965(Top 596%)
30K18.64 mi3.11 mi22094+30413032+19913032+19920845(Top 82%)12243(Top 84%)12243(Top 609%)
20M20.00 mi1.36 mi21801+29312865+16712865+16717489(Top 68%)10488(Top 72%)10488(Top 522%)
21M21.00 mi1.00 mi21704+9712803+6212803+6220017(Top 78%)11639(Top 80%)11639(Top 579%)
35K21.75 mi0.75 mi21694+1012784+1912784+1921679(Top 85%)12449(Top 85%)12449(Top 620%)
23M23.00 mi1.25 mi21574+12012705+7912705+7919914(Top 78%)11527(Top 79%)11527(Top 574%)
24M24.00 mi1.00 mi21452+12212621+8412621+8418882(Top 74%)10953(Top 75%)10953(Top 545%)
40K24.85 mi0.85 mi21405+4712573+4812573+4819742(Top 77%)11332(Top 78%)11332(Top 564%)
25.2M25.20 mi0.35 mi21376+2912554+1912554+1919980(Top 78%)11435(Top 78%)11435(Top 569%)
Finish26.22 mi1.02 mi21313+6312508+4612508+4620013(Top 78%)11488(Top 79%)11488(Top 572%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 85%
×21story building
+97ft-345ft

Overall

21756

Males

12974

M40-44

12974

5K→10K

3.1 - 6.2 mi

Top 89%
×5story building
+79ft-138ft

Overall

22757

Males

13396

M40-44

13396

10K→15K

6.2 - 9.3 mi

Top 85%
×3story building
+67ft-78ft

Overall

21756

Males

12974

M40-44

12974

15K→20K

9.3 - 12.4 mi

Top 92%
×5story building
+106ft-86ft

Overall

23577

Males

13767

M40-44

13767

20K→Half

12.4 - 13.1 mi

Top 80%
×2story building
+19ft-37ft

Overall

20525

Males

12328

M40-44

12328

Half→25K

13.1 - 15.5 mi

Top 78%
×4story building
+66ft-88ft

Overall

19833

Males

11965

M40-44

11965

25K→30K

15.5 - 18.6 mi

Top 82%
×9story building
+181ft-148ft

Overall

20845

Males

12243

M40-44

12243

30K→20M

18.6 - 20.0 mi

Top 68%
×5story building
+64ft-50ft

Overall

17489

Males

10488

M40-44

10488

20M→21M

20.0 - 21.0 mi

Top 78%
×8story building
+106ft-24ft

Overall

20017

Males

11639

M40-44

11639

21M→35K

21.0 - 21.8 mi

Top 85%
×7story building
+17ft-86ft

Overall

21679

Males

12449

M40-44

12449

35K→23M

21.8 - 23.0 mi

Top 78%
×5story building
+23ft-63ft

Overall

19914

Males

11527

M40-44

11527

23M→24M

23.0 - 24.0 mi

Top 74%
×6story building
+12ft-82ft

Overall

18882

Males

10953

M40-44

10953

24M→40K

24.0 - 24.9 mi

Top 77%
×1story
+6ft-20ft

Overall

19742

Males

11332

M40-44

11332

40K→25.2M

24.9 - 25.2 mi

Top 78%
×1story
+13ft-16ft

Overall

19980

Males

11435

M40-44

11435

25.2M→Finish

25.2 - 26.2 mi

Top 78%
×2story building
+22ft-21ft

Overall

20013

Males

11488

M40-44

11488

Passing Analysis

Category:
Athletes Passed
2660
Passed By
696
Net Change
+1964
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23277
5K → 10K34099+241#23277#23036
10K → 15K44314+429#23036#22607
15K → 20K76406-330#22607#22937
20K → Half1181+117#22937#22820
Half → 25K4264+422#22820#22398
25K → 30K33935+304#22398#22094
30K → 20M2952+293#22094#21801
20M → 21M11619+97#21801#21704
21M → 35K5242+10#21704#21694
35K → 23M1288+120#21694#21574
23M → 24M1297+122#21574#21452
24M → 40K7427+47#21452#21405
40K → 25.2M4011+29#21405#21376
25.2M → Finish8421+63#21376#21313
TOTALS2660696+1964
📊

Passing Visuals

Category:
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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