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BOSTON MARATHON 2024

Yasushi Komatsu

Bib: 4382•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Top 12%
Gender (Male)
#0 / 14578
Top 20%
Masters (Masters Men)
#0 / 9729
Top 10%
Division (M50-54)
#0 / 1935
Top 6%
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:36
Rank: #4240
Start → 5K
20:36 | 6:38/mi
10K· 6.21 mi
41:56
Rank: #4970 (-730)
5K → 10K
21:20 | 6:52/mi
15K· 9.32 mi
1:03:18
Rank: #5096 (-126)
10K → 15K
21:22 | 6:53/mi
20K· 12.43 mi
1:24:44
Rank: #4899 (+197)
15K → 20K
21:26 | 6:54/mi
Half· 13.11 mi
1:29:21
Rank: #4854 (+45)
20K → Half
4:37 | 6:46/mi
25K· 15.53 mi
1:46:01
Rank: #4531 (+323)
Half → 25K
16:40 | 6:52/mi
30K· 18.64 mi
2:07:54
Rank: #4156 (+375)
25K → 30K
21:53 | 7:03/mi
20M
2:17:28
Rank: #3911 (+245)
30K → 20M
9:34 | 7:02/mi
21M
2:24:58
Rank: #3724 (+187)
20M → 21M
7:30 | 7:30/mi
35K· 21.75 mi
2:30:08
Rank: #3647 (+77)
21M → 35K
5:10 | 6:54/mi
23M
2:38:59
Rank: #3476 (+171)
35K → 23M
8:51 | 7:04/mi
24M
2:46:01
Rank: #3385 (+91)
23M → 24M
7:02 | 7:02/mi
40K· 24.85 mi
2:52:01
Rank: #3278 (+107)
24M → 40K
6:00 | 7:01/mi
25.2M
2:54:47
Rank: #3251 (+27)
40K → 25.2M
2:46 | 8:01/mi
Finish· 26.22 mi
3:01:58
Rank: #3178 (+73)
25.2M → Finish
7:11 | 7:03/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:29:21
Pace6:49 /mi
2nd Half
Distance13.11 mi
Time1:32:37
Pace7:04 /mi
📊Positive Split: 3.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:23:1320:366:3820:36
6:38
-
10K
6.21 mi10:44:3341:566:4521:20
6:52
+0:14
15K
9.32 mi11:05:551:03:186:4721:22
6:53
+0:01
20K
12.43 mi11:27:211:24:446:4921:26
6:54
+0:01
Half
13.11 mi11:31:581:29:216:494:37
6:46
-0:08
25K
15.53 mi11:48:381:46:016:4916:40
6:52
+0:06
30K
18.64 mi12:10:312:07:546:5221:53
7:03
+0:11
20M
20.00 mi12:20:052:17:286:529:34
7:02
-0:01
21M
21.00 mi12:27:352:24:586:547:30
7:30
+0:28
35K
21.75 mi12:32:452:30:086:545:10
6:54
-0:36
23M
23.00 mi12:41:362:38:596:558:51
7:04
+0:10
24M
24.00 mi12:48:382:46:016:557:02
7:02
-0:02
40K
24.85 mi12:54:382:52:016:556:00
7:01
-0:01
25.2M
25.20 mi12:57:242:54:476:562:46
8:01
+1:00
Finish
26.22 mi13:04:353:01:586:577:11
7:03
-0:58

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

6:38 /mi

Average Pace

6:57 /mi

Slowest Pace

8:01 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

25:13

14% of race

Time at Steady Pace

2:26:29

81% of race

Time at Slower Pace

10:16

6% of race

Average Pace: 6:56 /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 mi10:23:1320:366:3820:36
6:38
#4240
10K
6.21 mi10:44:3341:566:4521:20
6:52
#4970
15K
9.32 mi11:05:551:03:186:4721:22
6:53
#5096
20K
12.43 mi11:27:211:24:446:4921:26
6:54
#4899
Half
13.11 mi11:31:581:29:216:494:37
6:46
#4854
25K
15.53 mi11:48:381:46:016:4916:40
6:52
#4531
30K
18.64 mi12:10:312:07:546:5221:53
7:03
#4156
20M
20.00 mi12:20:052:17:286:529:34
7:02
#3911
21M
21.00 mi12:27:352:24:586:547:30
7:30
#3724
35K
21.75 mi12:32:452:30:086:545:10
6:54
#3647
23M
23.00 mi12:41:362:38:596:558:51
7:04
#3476
24M
24.00 mi12:48:382:46:016:557:02
7:02
#3385
40K
24.85 mi12:54:382:52:016:556:00
7:01
#3278
25.2M
25.20 mi12:57:242:54:476:562:46
8:01
#3251
Finish
26.22 mi13:04:353:01:586:577:11
7:03
#3178
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi4240399639965374(Top 21%)4908(Top 34%)4908(Top 254%)
10K6.21 mi3.10 mi4970-7304608-6124608-6125738(Top 22%)5213(Top 36%)5213(Top 269%)
15K9.32 mi3.11 mi5096-1264713-1054713-1055374(Top 21%)4908(Top 34%)4908(Top 254%)
20K12.43 mi3.11 mi4899+1974537+1764537+1764608(Top 18%)4244(Top 29%)4244(Top 219%)
Half13.11 mi0.68 mi4854+454498+394498+394214(Top 16%)3918(Top 27%)3918(Top 202%)
25K15.53 mi2.42 mi4531+3234212+2864212+2863629(Top 14%)3379(Top 23%)3379(Top 175%)
30K18.64 mi3.11 mi4156+3753873+3393873+3393068(Top 12%)2846(Top 20%)2846(Top 147%)
20M20.00 mi1.36 mi3911+2453651+2223651+2222536(Top 10%)2359(Top 16%)2359(Top 122%)
21M21.00 mi1.00 mi3724+1873473+1783473+1782507(Top 10%)2293(Top 16%)2293(Top 119%)
35K21.75 mi0.75 mi3647+773398+753398+752701(Top 11%)2453(Top 17%)2453(Top 127%)
23M23.00 mi1.25 mi3476+1713235+1633235+1632179(Top 9%)1978(Top 14%)1978(Top 102%)
24M24.00 mi1.00 mi3385+913144+913144+912444(Top 10%)2175(Top 15%)2175(Top 112%)
40K24.85 mi0.85 mi3278+1073045+993045+991906(Top 7%)1719(Top 12%)1719(Top 89%)
25.2M25.20 mi0.35 mi3251+273018+273018+272788(Top 11%)2369(Top 16%)2369(Top 122%)
Finish26.22 mi1.02 mi3178+732939+792939+793342(Top 13%)2758(Top 19%)2758(Top 143%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 21%
×21stories
+97ft-345ft

Overall

5374

Males

4908

M50-54

4908

5K→10K

3.1 - 6.2 mi

Top 22%
×5stories
+79ft-138ft

Overall

5738

Males

5213

M50-54

5213

10K→15K

6.2 - 9.3 mi

Top 21%
×3stories
+67ft-78ft

Overall

5374

Males

4908

M50-54

4908

15K→20K

9.3 - 12.4 mi

Top 18%
×5stories
+106ft-86ft

Overall

4608

Males

4244

M50-54

4244

20K→Half

12.4 - 13.1 mi

Top 16%
×2stories
+19ft-37ft

Overall

4214

Males

3918

M50-54

3918

Half→25K

13.1 - 15.5 mi

Top 14%
×4stories
+66ft-88ft

Overall

3629

Males

3379

M50-54

3379

25K→30K

15.5 - 18.6 mi

Top 12%
×9stories
+181ft-148ft

Overall

3068

Males

2846

M50-54

2846

30K→20M

18.6 - 20.0 mi

Top 10%
×5stories
+64ft-50ft

Overall

2536

Males

2359

M50-54

2359

20M→21M

20.0 - 21.0 mi

Top 10%
×8stories
+106ft-24ft

Overall

2507

Males

2293

M50-54

2293

21M→35K

21.0 - 21.8 mi

Top 11%
×7stories
+17ft-86ft

Overall

2701

Males

2453

M50-54

2453

35K→23M

21.8 - 23.0 mi

Top 9%
×5stories
+23ft-63ft

Overall

2179

Males

1978

M50-54

1978

23M→24M

23.0 - 24.0 mi

Top 10%
×6stories
+12ft-82ft

Overall

2444

Males

2175

M50-54

2175

24M→40K

24.0 - 24.9 mi

Top 7%
×1story
+6ft-20ft

Overall

1906

Males

1719

M50-54

1719

40K→25.2M

24.9 - 25.2 mi

Top 11%
×1story
+13ft-16ft

Overall

2788

Males

2369

M50-54

2369

25.2M→Finish

25.2 - 26.2 mi

Top 13%
×2stories
+22ft-21ft

Overall

3342

Males

2758

M50-54

2758

Passing Analysis

Category:
Athletes Passed
2265
Passed By
1203
Net Change
+1062
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4240
5K → 10K29759-730#4240#4970
10K → 15K115241-126#4970#5096
15K → 20K26063+197#5096#4899
20K → Half538+45#4899#4854
Half → 25K33815+323#4854#4531
25K → 30K40934+375#4531#4156
30K → 20M2516+245#4156#3911
20M → 21M1947+187#3911#3724
21M → 35K836+77#3724#3647
35K → 23M18615+171#3647#3476
23M → 24M11019+91#3476#3385
24M → 40K1103+107#3385#3278
40K → 25.2M347+27#3278#3251
25.2M → Finish9320+73#3251#3178
TOTALS22651203+1062
📊

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