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BOSTON MARATHON 2024

Larry Chow

Bib: 28809•M

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Gender (Male)
#0 / 14578
Masters (Masters Men)
#0 / 9729
Division (M50-54)
#0 / 1935
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
27:11
Rank: #19047
Start → 5K
27:11 | 8:45/mi
10K· 6.21 mi
54:10
Rank: #18672 (+375)
5K → 10K
26:59 | 8:41/mi
15K· 9.32 mi
1:21:44
Rank: #18549 (+123)
10K → 15K
27:34 | 8:52/mi
20K· 12.43 mi
1:49:33
Rank: #18106 (+443)
15K → 20K
27:49 | 8:57/mi
Half· 13.11 mi
1:55:32
Rank: #18051 (+55)
20K → Half
5:59 | 8:46/mi
25K· 15.53 mi
2:17:39
Rank: #17641 (+410)
Half → 25K
22:07 | 9:07/mi
30K· 18.64 mi
2:46:43
Rank: #17100 (+541)
25K → 30K
29:04 | 9:21/mi
20M
2:59:12
Rank: #16806 (+294)
30K → 20M
12:29 | 9:11/mi
21M
3:08:57
Rank: #16529 (+277)
20M → 21M
9:45 | 9:45/mi
35K· 21.75 mi
3:15:46
Rank: #16430 (+99)
21M → 35K
6:49 | 9:07/mi
23M
3:27:50
Rank: #16276 (+154)
35K → 23M
12:04 | 9:38/mi
24M
3:37:02
Rank: #16119 (+157)
23M → 24M
9:12 | 9:12/mi
40K· 24.85 mi
3:45:04
Rank: #15957 (+162)
24M → 40K
8:02 | 9:24/mi
25.2M
3:48:35
Rank: #15878 (+79)
40K → 25.2M
3:31 | 10:12/mi
Finish· 26.22 mi
3:57:25
Rank: #15728 (+150)
25.2M → Finish
8:50 | 8:40/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:55:32
Pace8:49 /mi
2nd Half
Distance13.11 mi
Time2:01:53
Pace9:18 /mi
📊Positive Split: 5.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:47:1627:118:4527:11
8:45
-
10K
6.21 mi12:14:1554:108:4326:59
8:41
-0:04
15K
9.32 mi12:41:491:21:448:4627:34
8:52
+0:11
20K
12.43 mi13:09:381:49:338:4927:49
8:57
+0:05
Half
13.11 mi13:15:371:55:328:495:59
8:46
-0:11
25K
15.53 mi13:37:442:17:398:5222:07
9:07
+0:21
30K
18.64 mi14:06:482:46:438:5729:04
9:21
+0:14
20M
20.00 mi14:19:172:59:128:5812:29
9:11
-0:10
21M
21.00 mi14:29:023:08:579:009:45
9:45
+0:34
35K
21.75 mi14:35:513:15:469:006:49
9:07
-0:38
23M
23.00 mi14:47:553:27:509:0212:04
9:38
+0:31
24M
24.00 mi14:57:073:37:029:039:12
9:12
-0:26
40K
24.85 mi15:05:093:45:049:038:02
9:24
+0:12
25.2M
25.20 mi15:08:403:48:359:043:31
10:12
+0:48
Finish
26.22 mi15:17:303:57:259:048:50
8:40
-1:32

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

8:40 /mi

Average Pace

9:04 /mi

Slowest Pace

10:12 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:32:05

89% of race

Time at Steady Pace

25:20

11% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 9:03 /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 mi11:47:1627:118:4527:11
8:45
#19047
10K
6.21 mi12:14:1554:108:4326:59
8:41
#18672
15K
9.32 mi12:41:491:21:448:4627:34
8:52
#18549
20K
12.43 mi13:09:381:49:338:4927:49
8:57
#18106
Half
13.11 mi13:15:371:55:328:495:59
8:46
#18051
25K
15.53 mi13:37:442:17:398:5222:07
9:07
#17641
30K
18.64 mi14:06:482:46:438:5729:04
9:21
#17100
20M
20.00 mi14:19:172:59:128:5812:29
9:11
#16806
21M
21.00 mi14:29:023:08:579:009:45
9:45
#16529
35K
21.75 mi14:35:513:15:469:006:49
9:07
#16430
23M
23.00 mi14:47:553:27:509:0212:04
9:38
#16276
24M
24.00 mi14:57:073:37:029:039:12
9:12
#16119
40K
24.85 mi15:05:093:45:049:038:02
9:24
#15957
25.2M
25.20 mi15:08:403:48:359:043:31
10:12
#15878
Finish
26.22 mi15:17:303:57:259:048:50
8:40
#15728
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi19047116221162218309(Top 72%)11393(Top 78%)11393(Top 589%)
10K6.21 mi3.10 mi18672+37511487+13511487+13518269(Top 72%)11346(Top 78%)11346(Top 586%)
15K9.32 mi3.11 mi18549+12311458+2911458+2918309(Top 72%)11393(Top 78%)11393(Top 589%)
20K12.43 mi3.11 mi18106+44311266+19211266+19217136(Top 67%)10863(Top 75%)10863(Top 561%)
Half13.11 mi0.68 mi18051+5511240+2611240+2617151(Top 67%)10794(Top 74%)10794(Top 558%)
25K15.53 mi2.42 mi17641+41011033+20711033+20716083(Top 63%)10280(Top 71%)10280(Top 531%)
30K18.64 mi3.11 mi17100+54110749+28410749+28414844(Top 58%)9482(Top 65%)9482(Top 490%)
20M20.00 mi1.36 mi16806+29410587+16210587+16213060(Top 51%)8431(Top 58%)8431(Top 436%)
21M21.00 mi1.00 mi16529+27710446+14110446+14111911(Top 47%)7676(Top 53%)7676(Top 397%)
35K21.75 mi0.75 mi16430+9910391+5510391+5513860(Top 54%)8584(Top 59%)8584(Top 444%)
23M23.00 mi1.25 mi16276+15410283+10810283+10814070(Top 55%)8589(Top 59%)8589(Top 444%)
24M24.00 mi1.00 mi16119+15710176+10710176+10713102(Top 51%)8100(Top 56%)8100(Top 419%)
40K24.85 mi0.85 mi15957+16210075+10110075+10112690(Top 50%)7779(Top 53%)7779(Top 402%)
25.2M25.20 mi0.35 mi15878+7910027+4810027+4811709(Top 46%)7252(Top 50%)7252(Top 375%)
Finish26.22 mi1.02 mi15728+1509937+909937+9012440(Top 49%)7724(Top 53%)7724(Top 399%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 72%
×21stories
+97ft-345ft

Overall

18309

Males

11393

M50-54

11393

5K→10K

3.1 - 6.2 mi

Top 72%
×5stories
+79ft-138ft

Overall

18269

Males

11346

M50-54

11346

10K→15K

6.2 - 9.3 mi

Top 72%
×3stories
+67ft-78ft

Overall

18309

Males

11393

M50-54

11393

15K→20K

9.3 - 12.4 mi

Top 67%
×5stories
+106ft-86ft

Overall

17136

Males

10863

M50-54

10863

20K→Half

12.4 - 13.1 mi

Top 67%
×2stories
+19ft-37ft

Overall

17151

Males

10794

M50-54

10794

Half→25K

13.1 - 15.5 mi

Top 63%
×4stories
+66ft-88ft

Overall

16083

Males

10280

M50-54

10280

25K→30K

15.5 - 18.6 mi

Top 58%
×9stories
+181ft-148ft

Overall

14844

Males

9482

M50-54

9482

30K→20M

18.6 - 20.0 mi

Top 51%
×5stories
+64ft-50ft

Overall

13060

Males

8431

M50-54

8431

20M→21M

20.0 - 21.0 mi

Top 47%
×8stories
+106ft-24ft

Overall

11911

Males

7676

M50-54

7676

21M→35K

21.0 - 21.8 mi

Top 54%
×7stories
+17ft-86ft

Overall

13860

Males

8584

M50-54

8584

35K→23M

21.8 - 23.0 mi

Top 55%
×5stories
+23ft-63ft

Overall

14070

Males

8589

M50-54

8589

23M→24M

23.0 - 24.0 mi

Top 51%
×6stories
+12ft-82ft

Overall

13102

Males

8100

M50-54

8100

24M→40K

24.0 - 24.9 mi

Top 50%
×1story
+6ft-20ft

Overall

12690

Males

7779

M50-54

7779

40K→25.2M

24.9 - 25.2 mi

Top 46%
×1story
+13ft-16ft

Overall

11709

Males

7252

M50-54

7252

25.2M→Finish

25.2 - 26.2 mi

Top 49%
×2stories
+22ft-21ft

Overall

12440

Males

7724

M50-54

7724

Passing Analysis

Category:
Athletes Passed
3853
Passed By
534
Net Change
+3319
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19047
5K → 10K500125+375#19047#18672
10K → 15K285162+123#18672#18549
15K → 20K49350+443#18549#18106
20K → Half649+55#18106#18051
Half → 25K44333+410#18051#17641
25K → 30K58443+541#17641#17100
30K → 20M30511+294#17100#16806
20M → 21M2869+277#16806#16529
21M → 35K11516+99#16529#16430
35K → 23M18834+154#16430#16276
23M → 24M17114+157#16276#16119
24M → 40K17513+162#16119#15957
40K → 25.2M845+79#15957#15878
25.2M → Finish16010+150#15878#15728
TOTALS3853534+3319
📊

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