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BOSTON MARATHON 2024

Chih Hung Chou

Bib: 13727•M

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

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
8:53/mi
27:35
↑ 97↓ 3451.5%
10K· 6.21 mi
8:49/mi
55:00
↑ 79↓ 1380.4%
15K· 9.32 mi
8:53/mi
1:22:35
↑ 67↓ 78
20K· 12.43 mi
8:57/mi
1:50:23
↑ 106↓ 860.1%
Half· 13.11 mi
8:37/mi
1:56:16
↑ 19↓ 370.5%
25K· 15.53 mi
9:42/mi
2:19:46
↑ 66↓ 880.2%
30K· 18.64 mi
10:10/mi
2:51:20
↑ 181↓ 1480.2%
20M
10:45/mi
3:05:56
↑ 64↓ 500.2%
21M
11:58/mi
3:17:54
↑ 106↓ 241.6%
35K· 21.75 mi
12:11/mi
3:27:01
↑ 17↓ 861.7%
23M
11:43/mi
3:41:41
↑ 23↓ 630.6%
24M
10:58/mi
3:52:39
↓ 821.3%
40K· 24.85 mi
13:53/mi
4:04:31
↓ 200.3%
25.2M
18:36/mi
4:10:56
↑ 13↓ 160.2%
Finish· 26.22 mi
14:19/mi
4:25:31
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:56:16
Pace8:52 /mi
2nd Half
Distance13.11 mi
Time2:29:15
Pace11:23 /mi
📊Positive Split: 28.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:58:0027:358:5327:35
8:53
-
10K
6.21 mi11:25:2555:008:5127:25
8:49
-0:04
15K
9.32 mi11:53:001:22:358:5227:35
8:53
+0:04
20K
12.43 mi12:20:481:50:238:5327:48
8:57
+0:04
Half
13.11 mi12:26:411:56:168:525:53
8:37
-0:20
25K
15.53 mi12:50:112:19:469:0023:30
9:42
+1:05
30K
18.64 mi13:21:452:51:209:1131:34
10:10
+0:28
20M
20.00 mi13:36:213:05:569:1814:36
10:45
+0:35
21M
21.00 mi13:48:193:17:549:2511:58
11:58
+1:13
35K
21.75 mi13:57:263:27:019:319:07
12:11
+0:13
23M
23.00 mi14:12:063:41:419:3814:40
11:43
-0:28
24M
24.00 mi14:23:043:52:399:4210:58
10:58
-0:45
40K
24.85 mi14:34:564:04:319:5011:52
13:53
+2:55
25.2M
25.20 mi14:41:214:10:569:576:25
18:36
+4:43
Finish
26.22 mi14:55:564:25:3110:0814:35
14:19
-4:17

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

8:37 /mi

Average Pace

10:08 /mi

Slowest Pace

18:36 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:56:16

44% of race

Time at Steady Pace

1:47:16

40% of race

Time at Slower Pace

41:59

16% of race

Average Pace: 10:08 /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 mi10:58:0027:358:5327:35
8:53
#19601
10K
6.21 mi11:25:2555:008:5127:25
8:49
#19283
15K
9.32 mi11:53:001:22:358:5227:35
8:53
#18954
20K
12.43 mi12:20:481:50:238:5327:48
8:57
#18409
Half
13.11 mi12:26:411:56:168:525:53
8:37
#18289
25K
15.53 mi12:50:112:19:469:0023:30
9:42
#18285
30K
18.64 mi13:21:452:51:209:1131:34
10:10
#18211
20M
20.00 mi13:36:213:05:569:1814:36
10:45
#18284
21M
21.00 mi13:48:193:17:549:2511:58
11:58
#18333
35K
21.75 mi13:57:263:27:019:319:07
12:11
#18515
23M
23.00 mi14:12:063:41:419:3814:40
11:43
#18627
24M
24.00 mi14:23:043:52:399:4210:58
10:58
#18630
40K
24.85 mi14:34:564:04:319:5011:52
13:53
#18898
25.2M
25.20 mi14:41:214:10:569:576:25
18:36
#19154
Finish
26.22 mi14:55:564:25:3110:0814:35
14:19
#19607
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi19601118791187918341(Top 72%)11413(Top 78%)11413(Top 590%)
10K6.21 mi3.10 mi19283+31811761+11811761+11818968(Top 74%)11649(Top 80%)11649(Top 602%)
15K9.32 mi3.11 mi18954+32911637+12411637+12418341(Top 72%)11413(Top 78%)11413(Top 590%)
20K12.43 mi3.11 mi18409+54511405+23211405+23217114(Top 67%)10853(Top 74%)10853(Top 561%)
Half13.11 mi0.68 mi18289+12011353+5211353+5216384(Top 64%)10497(Top 72%)10497(Top 542%)
25K15.53 mi2.42 mi18285+411316+3711316+3718176(Top 71%)11212(Top 77%)11212(Top 579%)
30K18.64 mi3.11 mi18211+7411218+9811218+9817840(Top 70%)10850(Top 74%)10850(Top 561%)
20M20.00 mi1.36 mi18284-7311230-1211230-1218647(Top 73%)11076(Top 76%)11076(Top 572%)
21M21.00 mi1.00 mi18333-4911224+611224+618724(Top 73%)10998(Top 75%)10998(Top 568%)
35K21.75 mi0.75 mi18515-18211302-7811302-7822099(Top 86%)12651(Top 87%)12651(Top 654%)
23M23.00 mi1.25 mi18627-11211323-2111323-2120137(Top 79%)11632(Top 80%)11632(Top 601%)
24M24.00 mi1.00 mi18630-311303+2011303+2019133(Top 75%)11068(Top 76%)11068(Top 572%)
40K24.85 mi0.85 mi18898-26811413-11011413-11023475(Top 92%)13279(Top 91%)13279(Top 686%)
25.2M25.20 mi0.35 mi19154-25611532-11911532-11925153(Top 98%)14303(Top 98%)14303(Top 739%)
Finish26.22 mi1.02 mi19607-45311727-19511727-19525017(Top 98%)14184(Top 97%)14184(Top 733%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 72%
×21story building
+97ft-345ft

Overall

18341

Males

11413

M50-54

11413

5K→10K

3.1 - 6.2 mi

Top 74%
×5story building
+79ft-138ft

Overall

18968

Males

11649

M50-54

11649

10K→15K

6.2 - 9.3 mi

Top 72%
×3story building
+67ft-78ft

Overall

18341

Males

11413

M50-54

11413

15K→20K

9.3 - 12.4 mi

Top 67%
×5story building
+106ft-86ft

Overall

17114

Males

10853

M50-54

10853

20K→Half

12.4 - 13.1 mi

Top 64%
×2story building
+19ft-37ft

Overall

16384

Males

10497

M50-54

10497

Half→25K

13.1 - 15.5 mi

Top 71%
×4story building
+66ft-88ft

Overall

18176

Males

11212

M50-54

11212

25K→30K

15.5 - 18.6 mi

Top 70%
×9story building
+181ft-148ft

Overall

17840

Males

10850

M50-54

10850

30K→20M

18.6 - 20.0 mi

Top 73%
×5story building
+64ft-50ft

Overall

18647

Males

11076

M50-54

11076

20M→21M

20.0 - 21.0 mi

Top 73%
×8story building
+106ft-24ft

Overall

18724

Males

10998

M50-54

10998

21M→35K

21.0 - 21.8 mi

Top 86%
×7story building
+17ft-86ft

Overall

22099

Males

12651

M50-54

12651

35K→23M

21.8 - 23.0 mi

Top 79%
×5story building
+23ft-63ft

Overall

20137

Males

11632

M50-54

11632

23M→24M

23.0 - 24.0 mi

Top 75%
×6story building
+12ft-82ft

Overall

19133

Males

11068

M50-54

11068

24M→40K

24.0 - 24.9 mi

Top 92%
×1story
+6ft-20ft

Overall

23475

Males

13279

M50-54

13279

40K→25.2M

24.9 - 25.2 mi

Top 98%
×1story
+13ft-16ft

Overall

25153

Males

14303

M50-54

14303

25.2M→Finish

25.2 - 26.2 mi

Top 98%
×2story building
+22ft-21ft

Overall

25017

Males

14184

M50-54

14184

Passing Analysis

Category:
Athletes Passed
2393
Passed By
2399
Net Change
-6
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19601
5K → 10K444126+318#19601#19283
10K → 15K39364+329#19283#18954
15K → 20K57833+545#18954#18409
20K → Half1266+120#18409#18289
Half → 25K205201+4#18289#18285
25K → 30K292218+74#18285#18211
30K → 20M80153-73#18211#18284
20M → 21M78127-49#18284#18333
21M → 35K19201-182#18333#18515
35K → 23M89201-112#18515#18627
23M → 24M5760-3#18627#18630
24M → 40K15283-268#18630#18898
40K → 25.2M4260-256#18898#19154
25.2M → Finish13466-453#19154#19607
TOTALS23932399-6
📊

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