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BOSTON MARATHON 2024

Leslie Lam

Bib: 11829•M

NY

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Top 42%
Gender (Male)
#0 / 14578
Masters (Masters Men)
#0 / 9729
Top 44%
Division (M45-49)
#0 / 2218
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
7:25/mi
23:04
↑ 97↓ 3451.5%
10K· 6.21 mi
7:24/mi
46:03
↑ 79↓ 1380.4%
15K· 9.32 mi
7:21/mi
1:08:52
↑ 67↓ 78
20K· 12.43 mi
7:18/mi
1:31:33
↑ 106↓ 860.1%
Half· 13.11 mi
7:12/mi
1:36:28
↑ 19↓ 370.5%
25K· 15.53 mi
7:26/mi
1:54:29
↑ 66↓ 880.2%
30K· 18.64 mi
7:53/mi
2:19:00
↑ 181↓ 1480.2%
20M
8:29/mi
2:30:32
↑ 64↓ 500.2%
21M
8:56/mi
2:39:28
↑ 106↓ 241.6%
35K· 21.75 mi
10:20/mi
2:47:12
↑ 17↓ 861.7%
23M
13:29/mi
3:04:05
↑ 23↓ 630.6%
24M
10:26/mi
3:14:31
↓ 821.3%
40K· 24.85 mi
9:20/mi
3:22:30
↓ 200.3%
25.2M
11:16/mi
3:26:23
↑ 13↓ 160.2%
Finish· 26.22 mi
8:16/mi
3:34:48
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:36:28
Pace7:22 /mi
2nd Half
Distance13.11 mi
Time1:58:20
Pace9:02 /mi
📊Positive Split: 22.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:3523:047:2523:04
7:25
-
10K
6.21 mi11:13:3446:037:2522:59
7:24
-0:01
15K
9.32 mi11:36:231:08:527:2322:49
7:21
-0:03
20K
12.43 mi11:59:041:31:337:2222:41
7:18
-0:03
Half
13.11 mi12:03:591:36:287:224:55
7:12
-0:06
25K
15.53 mi12:22:001:54:297:2218:01
7:26
+0:14
30K
18.64 mi12:46:312:19:007:2724:31
7:53
+0:27
20M
20.00 mi12:58:032:30:327:3211:32
8:29
+0:36
21M
21.00 mi13:06:592:39:287:368:56
8:56
+0:27
35K
21.75 mi13:14:432:47:127:417:44
10:20
+1:24
23M
23.00 mi13:31:363:04:058:0016:53
13:29
+3:09
24M
24.00 mi13:42:023:14:318:0610:26
10:26
-3:03
40K
24.85 mi13:50:013:22:308:097:59
9:20
-1:06
25.2M
25.20 mi13:53:543:26:238:113:53
11:16
+1:56
Finish
26.22 mi14:02:193:34:488:128:25
8:16
-3:00

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

7:12 /mi

Average Pace

8:12 /mi

Slowest Pace

13:29 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

50:25

23% of race

Time at Steady Pace

1:57:28

55% of race

Time at Slower Pace

46:55

22% of race

Average Pace: 8:12 /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 mi10:50:3523:047:2523:04
7:25
#10148
10K
6.21 mi11:13:3446:037:2522:59
7:24
#9711
15K
9.32 mi11:36:231:08:527:2322:49
7:21
#9260
20K
12.43 mi11:59:041:31:337:2222:41
7:18
#8611
Half
13.11 mi12:03:591:36:287:224:55
7:12
#8522
25K
15.53 mi12:22:001:54:297:2218:01
7:26
#8095
30K
18.64 mi12:46:312:19:007:2724:31
7:53
#7825
20M
20.00 mi12:58:032:30:327:3211:32
8:29
#7922
21M
21.00 mi13:06:592:39:287:368:56
8:56
#7863
35K
21.75 mi13:14:432:47:127:417:44
10:20
#8351
23M
23.00 mi13:31:363:04:058:0016:53
13:29
#10147
24M
24.00 mi13:42:023:14:318:0610:26
10:26
#10606
40K
24.85 mi13:50:013:22:308:097:59
9:20
#10668
25.2M
25.20 mi13:53:543:26:238:113:53
11:16
#10765
Finish
26.22 mi14:02:193:34:488:128:25
8:16
#10712
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi10148803880388455(Top 33%)6992(Top 48%)6992(Top 315%)
10K6.21 mi3.10 mi9711+4377775+2637775+2639398(Top 37%)7548(Top 52%)7548(Top 340%)
15K9.32 mi3.11 mi9260+4517501+2747501+2748455(Top 33%)6992(Top 48%)6992(Top 315%)
20K12.43 mi3.11 mi8611+6497091+4107091+4106976(Top 27%)5984(Top 41%)5984(Top 270%)
Half13.11 mi0.68 mi8522+897034+577034+577035(Top 28%)6029(Top 41%)6029(Top 272%)
25K15.53 mi2.42 mi8095+4276750+2846750+2846596(Top 26%)5577(Top 38%)5577(Top 251%)
30K18.64 mi3.11 mi7825+2706491+2596491+2597234(Top 28%)5766(Top 40%)5766(Top 260%)
20M20.00 mi1.36 mi7922-976496-56496-59355(Top 37%)6704(Top 46%)6704(Top 302%)
21M21.00 mi1.00 mi7863+596417+796417+798251(Top 32%)5923(Top 41%)5923(Top 267%)
35K21.75 mi0.75 mi8351-4886655-2386655-23818098(Top 71%)10666(Top 73%)10666(Top 481%)
23M23.00 mi1.25 mi10147-17967527-8727527-87223189(Top 91%)13214(Top 91%)13214(Top 596%)
24M24.00 mi1.00 mi10606-4597705-1787705-17817643(Top 69%)10317(Top 71%)10317(Top 465%)
40K24.85 mi0.85 mi10668-627678+277678+2712408(Top 49%)7646(Top 52%)7646(Top 345%)
25.2M25.20 mi0.35 mi10765-977708-307708-3015282(Top 60%)9064(Top 62%)9064(Top 409%)
Finish26.22 mi1.02 mi10712+537636+727636+7210084(Top 39%)6507(Top 45%)6507(Top 293%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 33%
×21story building
+97ft-345ft

Overall

8455

Males

6992

M45-49

6992

5K→10K

3.1 - 6.2 mi

Top 37%
×5story building
+79ft-138ft

Overall

9398

Males

7548

M45-49

7548

10K→15K

6.2 - 9.3 mi

Top 33%
×3story building
+67ft-78ft

Overall

8455

Males

6992

M45-49

6992

15K→20K

9.3 - 12.4 mi

Top 27%
×5story building
+106ft-86ft

Overall

6976

Males

5984

M45-49

5984

20K→Half

12.4 - 13.1 mi

Top 28%
×2story building
+19ft-37ft

Overall

7035

Males

6029

M45-49

6029

Half→25K

13.1 - 15.5 mi

Top 26%
×4story building
+66ft-88ft

Overall

6596

Males

5577

M45-49

5577

25K→30K

15.5 - 18.6 mi

Top 28%
×9story building
+181ft-148ft

Overall

7234

Males

5766

M45-49

5766

30K→20M

18.6 - 20.0 mi

Top 37%
×5story building
+64ft-50ft

Overall

9355

Males

6704

M45-49

6704

20M→21M

20.0 - 21.0 mi

Top 32%
×8story building
+106ft-24ft

Overall

8251

Males

5923

M45-49

5923

21M→35K

21.0 - 21.8 mi

Top 71%
×7story building
+17ft-86ft

Overall

18098

Males

10666

M45-49

10666

35K→23M

21.8 - 23.0 mi

Top 91%
×5story building
+23ft-63ft

Overall

23189

Males

13214

M45-49

13214

23M→24M

23.0 - 24.0 mi

Top 69%
×6story building
+12ft-82ft

Overall

17643

Males

10317

M45-49

10317

24M→40K

24.0 - 24.9 mi

Top 49%
×1story
+6ft-20ft

Overall

12408

Males

7646

M45-49

7646

40K→25.2M

24.9 - 25.2 mi

Top 60%
×1story
+13ft-16ft

Overall

15282

Males

9064

M45-49

9064

25.2M→Finish

25.2 - 26.2 mi

Top 39%
×2story building
+22ft-21ft

Overall

10084

Males

6507

M45-49

6507

Passing Analysis

Category:
Athletes Passed
3074*
Passed By
3636
Net Change
-564
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10148
5K → 10K521*84+437#10148#9711
10K → 15K47726+451#9711#9260
15K → 20K6556+649#9260#8611
20K → Half923+89#8611#8522
Half → 25K44215+427#8522#8095
25K → 30K387117+270#8095#7825
30K → 20M85182-97#7825#7922
20M → 21M15091+59#7922#7863
21M → 35K15503-488#7863#8351
35K → 23M121806-1796#8351#10147
23M → 24M32491-459#10147#10606
24M → 40K82*144-62#10606#10668
40K → 25.2M15112-97#10668#10765
25.2M → Finish10956+53#10765#10712
TOTALS3074*3636-564

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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