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BOSTON MARATHON 2024

Yu Wen Chang

Bib: 8324•M

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

Start
0:00:00
Race begins
5K· 3.11 mi
21:08
Rank: #5670
Start → 5K
21:08 | 6:48/mi
10K· 6.21 mi
42:51
Rank: #6139 (-469)
5K → 10K
21:43 | 6:59/mi
15K· 9.32 mi
1:05:04
Rank: #6482 (-343)
10K → 15K
22:13 | 7:09/mi
20K· 12.43 mi
1:29:39
Rank: #7526 (-1044)
15K → 20K
24:35 | 7:55/mi
Half· 13.11 mi
1:35:07
Rank: #7774 (-248)
20K → Half
5:28 | 8:01/mi
25K· 15.53 mi
1:56:39
Rank: #9146 (-1372)
Half → 25K
21:32 | 8:53/mi
30K· 18.64 mi
2:32:17
Rank: #12772 (-3626)
25K → 30K
35:38 | 11:28/mi
20M
2:49:03
Rank: #14099 (-1327)
30K → 20M
16:46 | 12:20/mi
21M
2:59:56
Rank: #14248 (-149)
20M → 21M
10:53 | 10:53/mi
35K· 21.75 mi
3:06:37
Rank: #14163 (+85)
21M → 35K
6:41 | 8:56/mi
23M
3:18:41
Rank: #14175 (-12)
35K → 23M
12:04 | 9:38/mi
24M
3:27:52
Rank: #14117 (+58)
23M → 24M
9:11 | 9:11/mi
40K· 24.85 mi
3:36:00
Rank: #14061 (+56)
24M → 40K
8:08 | 9:31/mi
25.2M
3:39:35
Rank: #14015 (+46)
40K → 25.2M
3:35 | 10:23/mi
Finish· 26.22 mi
3:48:22
Rank: #13917 (+98)
25.2M → Finish
8:47 | 8:37/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:35:07
Pace7:15 /mi
2nd Half
Distance13.11 mi
Time2:13:15
Pace10:10 /mi
📊Positive Split: 40.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:46:1721:086:4821:08
6:48
-
10K
6.21 mi11:08:0042:516:5421:43
6:59
+0:11
15K
9.32 mi11:30:131:05:046:5922:13
7:09
+0:10
20K
12.43 mi11:54:481:29:397:1324:35
7:55
+0:46
Half
13.11 mi12:00:161:35:077:155:28
8:01
+0:06
25K
15.53 mi12:21:481:56:397:3121:32
8:53
+0:52
30K
18.64 mi12:57:262:32:178:1035:38
11:28
+2:35
20M
20.00 mi13:14:122:49:038:2716:46
12:20
+0:52
21M
21.00 mi13:25:052:59:568:3410:53
10:53
-1:27
35K
21.75 mi13:31:463:06:378:356:41
8:56
-1:57
23M
23.00 mi13:43:503:18:418:3812:04
9:38
+0:42
24M
24.00 mi13:53:013:27:528:409:11
9:11
-0:27
40K
24.85 mi14:01:093:36:008:418:08
9:31
+0:20
25.2M
25.20 mi14:04:443:39:358:433:35
10:23
+0:52
Finish
26.22 mi14:13:313:48:228:438:47
8:37
-1:46

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

6:48 /mi

Average Pace

8:43 /mi

Slowest Pace

12:20 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:35:07

42% of race

Time at Steady Pace

1:06:23

29% of race

Time at Slower Pace

1:06:52

29% of race

Average Pace: 8:43 /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 mi10:46:1721:086:4821:08
6:48
#5670
10K
6.21 mi11:08:0042:516:5421:43
6:59
#6139
15K
9.32 mi11:30:131:05:046:5922:13
7:09
#6482
20K
12.43 mi11:54:481:29:397:1324:35
7:55
#7526
Half
13.11 mi12:00:161:35:077:155:28
8:01
#7774
25K
15.53 mi12:21:481:56:397:3121:32
8:53
#9146
30K
18.64 mi12:57:262:32:178:1035:38
11:28
#12772
20M
20.00 mi13:14:122:49:038:2716:46
12:20
#14099
21M
21.00 mi13:25:052:59:568:3410:53
10:53
#14248
35K
21.75 mi13:31:463:06:378:356:41
8:56
#14163
23M
23.00 mi13:43:503:18:418:3812:04
9:38
#14175
24M
24.00 mi13:53:013:27:528:409:11
9:11
#14117
40K
24.85 mi14:01:093:36:008:418:08
9:31
#14061
25.2M
25.20 mi14:04:443:39:358:433:35
10:23
#14015
Finish
26.22 mi14:13:313:48:228:438:47
8:37
#13917
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi5670518851887130(Top 28%)6166(Top 42%)6166(Top 307%)
10K6.21 mi3.10 mi6139-4695537-3495537-3496604(Top 26%)5843(Top 40%)5843(Top 291%)
15K9.32 mi3.11 mi6482-3435763-2265763-2267130(Top 28%)6166(Top 42%)6166(Top 307%)
20K12.43 mi3.11 mi7526-10446439-6766439-67611218(Top 44%)8273(Top 57%)8273(Top 412%)
Half13.11 mi0.68 mi7774-2486599-1606599-16012817(Top 50%)9013(Top 62%)9013(Top 449%)
25K15.53 mi2.42 mi9146-13727350-7517350-75114957(Top 59%)9769(Top 67%)9769(Top 486%)
30K18.64 mi3.11 mi12772-36268968-16188968-161820965(Top 82%)12305(Top 84%)12305(Top 612%)
20M20.00 mi1.36 mi14099-13279477-5099477-50921902(Top 86%)12649(Top 87%)12649(Top 630%)
21M21.00 mi1.00 mi14248-1499485-89485-816021(Top 63%)9640(Top 66%)9640(Top 480%)
35K21.75 mi0.75 mi14163+859418+679418+6712977(Top 51%)8151(Top 56%)8151(Top 406%)
23M23.00 mi1.25 mi14175-129366+529366+5214066(Top 55%)8585(Top 59%)8585(Top 427%)
24M24.00 mi1.00 mi14117+589289+779289+7713019(Top 51%)8051(Top 55%)8051(Top 401%)
40K24.85 mi0.85 mi14061+569229+609229+6013149(Top 51%)7998(Top 55%)7998(Top 398%)
25.2M25.20 mi0.35 mi14015+469182+479182+4712410(Top 49%)7579(Top 52%)7579(Top 377%)
Finish26.22 mi1.02 mi13917+989112+709112+7012179(Top 48%)7605(Top 52%)7605(Top 379%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 28%
×21stories
+97ft-345ft

Overall

7130

Males

6166

M40-44

6166

5K→10K

3.1 - 6.2 mi

Top 26%
×5stories
+79ft-138ft

Overall

6604

Males

5843

M40-44

5843

10K→15K

6.2 - 9.3 mi

Top 28%
×3stories
+67ft-78ft

Overall

7130

Males

6166

M40-44

6166

15K→20K

9.3 - 12.4 mi

Top 44%
×5stories
+106ft-86ft

Overall

11218

Males

8273

M40-44

8273

20K→Half

12.4 - 13.1 mi

Top 50%
×2stories
+19ft-37ft

Overall

12817

Males

9013

M40-44

9013

Half→25K

13.1 - 15.5 mi

Top 59%
×4stories
+66ft-88ft

Overall

14957

Males

9769

M40-44

9769

25K→30K

15.5 - 18.6 mi

Top 82%
×9stories
+181ft-148ft

Overall

20965

Males

12305

M40-44

12305

30K→20M

18.6 - 20.0 mi

Top 86%
×5stories
+64ft-50ft

Overall

21902

Males

12649

M40-44

12649

20M→21M

20.0 - 21.0 mi

Top 63%
×8stories
+106ft-24ft

Overall

16021

Males

9640

M40-44

9640

21M→35K

21.0 - 21.8 mi

Top 51%
×7stories
+17ft-86ft

Overall

12977

Males

8151

M40-44

8151

35K→23M

21.8 - 23.0 mi

Top 55%
×5stories
+23ft-63ft

Overall

14066

Males

8585

M40-44

8585

23M→24M

23.0 - 24.0 mi

Top 51%
×6stories
+12ft-82ft

Overall

13019

Males

8051

M40-44

8051

24M→40K

24.0 - 24.9 mi

Top 51%
×1story
+6ft-20ft

Overall

13149

Males

7998

M40-44

7998

40K→25.2M

24.9 - 25.2 mi

Top 49%
×1story
+13ft-16ft

Overall

12410

Males

7579

M40-44

7579

25.2M→Finish

25.2 - 26.2 mi

Top 48%
×2stories
+22ft-21ft

Overall

12179

Males

7605

M40-44

7605

Passing Analysis

Category:
Athletes Passed
956
Passed By
9201
Net Change
-8247
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5670
5K → 10K69538-469#5670#6139
10K → 15K61404-343#6139#6482
15K → 20K261070-1044#6482#7526
20K → Half5253-248#7526#7774
Half → 25K271399-1372#7774#9146
25K → 30K43628-3626#9146#12772
30K → 20M111338-1327#12772#14099
20M → 21M91240-149#14099#14248
21M → 35K12035+85#14248#14163
35K → 23M123135-12#14163#14175
23M → 24M11759+58#14175#14117
24M → 40K10549+56#14117#14061
40K → 25.2M6923+46#14061#14015
25.2M → Finish12830+98#14015#13917
TOTALS9569201-8247
📊

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