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BOSTON MARATHON 2024

Chang Chung

Bib: 20849•M

BC

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Gender (Male)
#0 / 14578
Masters (Masters Men)
#0 / 9729
Division (M60-64)
#0 / 1173
Top 36%
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:42
Rank: #14255
Start → 5K
24:42 | 7:57/mi
10K· 6.21 mi
49:44
Rank: #14430 (-175)
5K → 10K
25:02 | 8:03/mi
15K· 9.32 mi
1:14:47
Rank: #14215 (+215)
10K → 15K
25:03 | 8:04/mi
20K· 12.43 mi
1:40:31
Rank: #13989 (+226)
15K → 20K
25:44 | 8:17/mi
Half· 13.11 mi
1:46:07
Rank: #13979 (+10)
20K → Half
5:36 | 8:12/mi
25K· 15.53 mi
2:07:02
Rank: #13892 (+87)
Half → 25K
20:55 | 8:38/mi
30K· 18.64 mi
2:38:23
Rank: #14791 (-899)
25K → 30K
31:21 | 10:05/mi
20M
2:52:41
Rank: #15157 (-366)
30K → 20M
14:18 | 10:31/mi
21M
3:03:30
Rank: #15202 (-45)
20M → 21M
10:49 | 10:49/mi
35K· 21.75 mi
3:10:29
Rank: #15197 (+5)
21M → 35K
6:59 | 9:20/mi
23M
3:22:17
Rank: #15059 (+138)
35K → 23M
11:48 | 9:25/mi
24M
3:31:33
Rank: #14974 (+85)
23M → 24M
9:16 | 9:16/mi
40K· 24.85 mi
3:39:41
Rank: #14864 (+110)
24M → 40K
8:08 | 9:31/mi
25.2M
3:43:33
Rank: #14863 (+1)
40K → 25.2M
3:52 | 11:13/mi
Finish· 26.22 mi
3:52:53
Rank: #14861 (+2)
25.2M → Finish
9:20 | 9:10/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:46:07
Pace8:06 /mi
2nd Half
Distance13.11 mi
Time2:06:46
Pace9:40 /mi
📊Positive Split: 19.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:19:1424:427:5724:42
7:57
-
10K
6.21 mi11:44:1649:448:0025:02
8:03
+0:06
15K
9.32 mi12:09:191:14:478:0125:03
8:04
+0:01
20K
12.43 mi12:35:031:40:318:0525:44
8:17
+0:13
Half
13.11 mi12:40:391:46:078:065:36
8:12
-0:05
25K
15.53 mi13:01:342:07:028:1120:55
8:38
+0:26
30K
18.64 mi13:32:552:38:238:3031:21
10:05
+1:27
20M
20.00 mi13:47:132:52:418:3814:18
10:31
+0:26
21M
21.00 mi13:58:023:03:308:4410:49
10:49
+0:18
35K
21.75 mi14:05:013:10:298:466:59
9:20
-1:29
23M
23.00 mi14:16:493:22:178:4811:48
9:25
+0:05
24M
24.00 mi14:26:053:31:338:499:16
9:16
-0:09
40K
24.85 mi14:34:133:39:418:508:08
9:31
+0:15
25.2M
25.20 mi14:38:053:43:338:523:52
11:13
+1:42
Finish
26.22 mi14:47:253:52:538:539:20
9:10
-2:03

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

7:57 /mi

Average Pace

8:53 /mi

Slowest Pace

11:13 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:07:02

55% of race

Time at Steady Pace

45:31

20% of race

Time at Slower Pace

1:00:20

26% of race

Average Pace: 8:53 /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 mi11:19:1424:427:5724:42
7:57
#14255
10K
6.21 mi11:44:1649:448:0025:02
8:03
#14430
15K
9.32 mi12:09:191:14:478:0125:03
8:04
#14215
20K
12.43 mi12:35:031:40:318:0525:44
8:17
#13989
Half
13.11 mi12:40:391:46:078:065:36
8:12
#13979
25K
15.53 mi13:01:342:07:028:1120:55
8:38
#13892
30K
18.64 mi13:32:552:38:238:3031:21
10:05
#14791
20M
20.00 mi13:47:132:52:418:3814:18
10:31
#15157
21M
21.00 mi13:58:023:03:308:4410:49
10:49
#15202
35K
21.75 mi14:05:013:10:298:466:59
9:20
#15197
23M
23.00 mi14:16:493:22:178:4811:48
9:25
#15059
24M
24.00 mi14:26:053:31:338:499:16
9:16
#14974
40K
24.85 mi14:34:133:39:418:508:08
9:31
#14864
25.2M
25.20 mi14:38:053:43:338:523:52
11:13
#14863
Finish
26.22 mi14:47:253:52:538:539:20
9:10
#14861
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi142559742974213861(Top 54%)9552(Top 66%)9552(Top 814%)
10K6.21 mi3.10 mi14430-1759802-609802-6014590(Top 57%)9876(Top 68%)9876(Top 842%)
15K9.32 mi3.11 mi14215+2159717+859717+8513861(Top 54%)9552(Top 66%)9552(Top 814%)
20K12.43 mi3.11 mi13989+2269602+1159602+11513609(Top 53%)9388(Top 64%)9388(Top 800%)
Half13.11 mi0.68 mi13979+109594+89594+814020(Top 55%)9508(Top 65%)9508(Top 811%)
25K15.53 mi2.42 mi13892+879528+669528+6613721(Top 54%)9242(Top 63%)9242(Top 788%)
30K18.64 mi3.11 mi14791-8999810-2829810-28217623(Top 69%)10731(Top 74%)10731(Top 915%)
20M20.00 mi1.36 mi15157-3669901-919901-9118040(Top 71%)10774(Top 74%)10774(Top 918%)
21M21.00 mi1.00 mi15202-459874+279874+2715804(Top 62%)9547(Top 65%)9547(Top 814%)
35K21.75 mi0.75 mi15197+59848+269848+2614841(Top 58%)9050(Top 62%)9050(Top 772%)
23M23.00 mi1.25 mi15059+1389752+969752+9613177(Top 52%)8154(Top 56%)8154(Top 695%)
24M24.00 mi1.00 mi14974+859662+909662+9013382(Top 52%)8241(Top 57%)8241(Top 703%)
40K24.85 mi0.85 mi14864+1109577+859577+8513154(Top 51%)8003(Top 55%)8003(Top 682%)
25.2M25.20 mi0.35 mi14863+19563+149563+1415153(Top 59%)9017(Top 62%)9017(Top 769%)
Finish26.22 mi1.02 mi14861+29527+369527+3614955(Top 59%)8967(Top 62%)8967(Top 764%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 54%
×21stories
+97ft-345ft

Overall

13861

Males

9552

M60-64

9552

5K→10K

3.1 - 6.2 mi

Top 57%
×5stories
+79ft-138ft

Overall

14590

Males

9876

M60-64

9876

10K→15K

6.2 - 9.3 mi

Top 54%
×3stories
+67ft-78ft

Overall

13861

Males

9552

M60-64

9552

15K→20K

9.3 - 12.4 mi

Top 53%
×5stories
+106ft-86ft

Overall

13609

Males

9388

M60-64

9388

20K→Half

12.4 - 13.1 mi

Top 55%
×2stories
+19ft-37ft

Overall

14020

Males

9508

M60-64

9508

Half→25K

13.1 - 15.5 mi

Top 54%
×4stories
+66ft-88ft

Overall

13721

Males

9242

M60-64

9242

25K→30K

15.5 - 18.6 mi

Top 69%
×9stories
+181ft-148ft

Overall

17623

Males

10731

M60-64

10731

30K→20M

18.6 - 20.0 mi

Top 71%
×5stories
+64ft-50ft

Overall

18040

Males

10774

M60-64

10774

20M→21M

20.0 - 21.0 mi

Top 62%
×8stories
+106ft-24ft

Overall

15804

Males

9547

M60-64

9547

21M→35K

21.0 - 21.8 mi

Top 58%
×7stories
+17ft-86ft

Overall

14841

Males

9050

M60-64

9050

35K→23M

21.8 - 23.0 mi

Top 52%
×5stories
+23ft-63ft

Overall

13177

Males

8154

M60-64

8154

23M→24M

23.0 - 24.0 mi

Top 52%
×6stories
+12ft-82ft

Overall

13382

Males

8241

M60-64

8241

24M→40K

24.0 - 24.9 mi

Top 51%
×1story
+6ft-20ft

Overall

13154

Males

8003

M60-64

8003

40K→25.2M

24.9 - 25.2 mi

Top 59%
×1story
+13ft-16ft

Overall

15153

Males

9017

M60-64

9017

25.2M→Finish

25.2 - 26.2 mi

Top 59%
×2stories
+22ft-21ft

Overall

14955

Males

8967

M60-64

8967

Passing Analysis

Category:
Athletes Passed
2110
Passed By
2716
Net Change
-606
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14255
5K → 10K219394-175#14255#14430
10K → 15K345130+215#14430#14215
15K → 20K355129+226#14215#13989
20K → Half5444+10#13989#13979
Half → 25K242155+87#13979#13892
25K → 30K84983-899#13892#14791
30K → 20M39405-366#14791#15157
20M → 21M117162-45#15157#15202
21M → 35K6762+5#15202#15197
35K → 23M17941+138#15197#15059
23M → 24M13449+85#15059#14974
24M → 40K14434+110#14974#14864
40K → 25.2M4342+1#14864#14863
25.2M → Finish8886+2#14863#14861
TOTALS21102716-606
📊

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