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BOSTON MARATHON 2024

Hung Jui Chang

Bib: 8541•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Top 40%
Gender (Male)
#0 / 14578
Masters (Masters Men)
#0 / 9729
Top 42%
Division (M55-59)
#0 / 1529
Top 28%
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:16
Rank: #8158
Start → 5K
22:16 | 7:10/mi
10K· 6.21 mi
44:52
Rank: #8277 (-119)
5K → 10K
22:36 | 7:16/mi
15K· 9.32 mi
1:07:58
Rank: #8552 (-275)
10K → 15K
23:06 | 7:26/mi
20K· 12.43 mi
1:31:49
Rank: #8765 (-213)
15K → 20K
23:51 | 7:41/mi
Half· 13.11 mi
1:36:56
Rank: #8790 (-25)
20K → Half
5:07 | 7:30/mi
25K· 15.53 mi
1:55:53
Rank: #8785 (+5)
Half → 25K
18:57 | 7:49/mi
30K· 18.64 mi
2:21:40
Rank: #8867 (-82)
25K → 30K
25:47 | 8:18/mi
20M
2:33:34
Rank: #8958 (-91)
30K → 20M
11:54 | 8:45/mi
21M
2:43:55
Rank: #9272 (-314)
20M → 21M
10:21 | 10:21/mi
35K· 21.75 mi
2:50:55
Rank: #9475 (-203)
21M → 35K
7:00 | 9:21/mi
23M
3:03:31
Rank: #9983 (-508)
35K → 23M
12:36 | 10:04/mi
24M
3:12:56
Rank: #10163 (-180)
23M → 24M
9:25 | 9:25/mi
40K· 24.85 mi
3:21:08
Rank: #10315 (-152)
24M → 40K
8:12 | 9:35/mi
25.2M
3:24:36
Rank: #10313 (+2)
40K → 25.2M
3:28 | 10:03/mi
Finish· 26.22 mi
3:32:38
Rank: #10188 (+125)
25.2M → Finish
8:02 | 7:53/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:36:56
Pace7:24 /mi
2nd Half
Distance13.11 mi
Time1:55:42
Pace8:50 /mi
📊Positive Split: 19.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:47:3022:167:1022:16
7:10
-
10K
6.21 mi11:10:0644:527:1322:36
7:16
+0:06
15K
9.32 mi11:33:121:07:587:1823:06
7:26
+0:10
20K
12.43 mi11:57:031:31:497:2323:51
7:41
+0:15
Half
13.11 mi12:02:101:36:567:245:07
7:30
-0:11
25K
15.53 mi12:21:071:55:537:2818:57
7:49
+0:19
30K
18.64 mi12:46:542:21:407:3625:47
8:18
+0:29
20M
20.00 mi12:58:482:33:347:4111:54
8:45
+0:27
21M
21.00 mi13:09:092:43:557:4810:21
10:21
+1:36
35K
21.75 mi13:16:092:50:557:527:00
9:21
-1:00
23M
23.00 mi13:28:453:03:317:5912:36
10:04
+0:43
24M
24.00 mi13:38:103:12:568:029:25
9:25
-0:39
40K
24.85 mi13:46:223:21:088:068:12
9:35
+0:10
25.2M
25.20 mi13:49:503:24:368:073:28
10:03
+0:28
Finish
26.22 mi13:57:523:32:388:078:02
7:53
-2:10

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

7:10 /mi

Average Pace

8:07 /mi

Slowest Pace

10:21 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:36:56

46% of race

Time at Steady Pace

1:04:40

30% of race

Time at Slower Pace

51:02

24% of race

Average Pace: 8:07 /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 mi10:47:3022:167:1022:16
7:10
#8158
10K
6.21 mi11:10:0644:527:1322:36
7:16
#8277
15K
9.32 mi11:33:121:07:587:1823:06
7:26
#8552
20K
12.43 mi11:57:031:31:497:2323:51
7:41
#8765
Half
13.11 mi12:02:101:36:567:245:07
7:30
#8790
25K
15.53 mi12:21:071:55:537:2818:57
7:49
#8785
30K
18.64 mi12:46:542:21:407:3625:47
8:18
#8867
20M
20.00 mi12:58:482:33:347:4111:54
8:45
#8958
21M
21.00 mi13:09:092:43:557:4810:21
10:21
#9272
35K
21.75 mi13:16:092:50:557:527:00
9:21
#9475
23M
23.00 mi13:28:453:03:317:5912:36
10:04
#9983
24M
24.00 mi13:38:103:12:568:029:25
9:25
#10163
40K
24.85 mi13:46:223:21:088:068:12
9:35
#10315
25.2M
25.20 mi13:49:503:24:368:073:28
10:03
#10313
Finish
26.22 mi13:57:523:32:388:078:02
7:53
#10188
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi8158690869089148(Top 36%)7375(Top 51%)7375(Top 482%)
10K6.21 mi3.10 mi8277-1196940-326940-328458(Top 33%)7021(Top 48%)7021(Top 459%)
15K9.32 mi3.11 mi8552-2757098-1587098-1589148(Top 36%)7375(Top 51%)7375(Top 482%)
20K12.43 mi3.11 mi8765-2137182-847182-849577(Top 37%)7444(Top 51%)7444(Top 487%)
Half13.11 mi0.68 mi8790-257191-97191-99088(Top 36%)7215(Top 49%)7215(Top 472%)
25K15.53 mi2.42 mi8785+57148+437148+439014(Top 35%)6986(Top 48%)6986(Top 457%)
30K18.64 mi3.11 mi8867-827093+557093+559553(Top 37%)7051(Top 48%)7051(Top 461%)
20M20.00 mi1.36 mi8958-917083+107083+1010848(Top 42%)7432(Top 51%)7432(Top 486%)
21M21.00 mi1.00 mi9272-3147181-987181-9814291(Top 56%)8794(Top 60%)8794(Top 575%)
35K21.75 mi0.75 mi9475-2037248-677248-6714907(Top 58%)9070(Top 62%)9070(Top 593%)
23M23.00 mi1.25 mi9983-5087434-1867434-18615668(Top 61%)9389(Top 64%)9389(Top 614%)
24M24.00 mi1.00 mi10163-1807486-527486-5214087(Top 55%)8561(Top 59%)8561(Top 560%)
40K24.85 mi0.85 mi10315-1527514-287514-2813432(Top 53%)8144(Top 56%)8144(Top 533%)
25.2M25.20 mi0.35 mi10313+27496+187496+1811111(Top 43%)6936(Top 48%)6936(Top 454%)
Finish26.22 mi1.02 mi10188+1257396+1007396+1007819(Top 31%)5330(Top 37%)5330(Top 349%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 36%
×21stories
+97ft-345ft

Overall

9148

Males

7375

M55-59

7375

5K→10K

3.1 - 6.2 mi

Top 33%
×5stories
+79ft-138ft

Overall

8458

Males

7021

M55-59

7021

10K→15K

6.2 - 9.3 mi

Top 36%
×3stories
+67ft-78ft

Overall

9148

Males

7375

M55-59

7375

15K→20K

9.3 - 12.4 mi

Top 37%
×5stories
+106ft-86ft

Overall

9577

Males

7444

M55-59

7444

20K→Half

12.4 - 13.1 mi

Top 36%
×2stories
+19ft-37ft

Overall

9088

Males

7215

M55-59

7215

Half→25K

13.1 - 15.5 mi

Top 35%
×4stories
+66ft-88ft

Overall

9014

Males

6986

M55-59

6986

25K→30K

15.5 - 18.6 mi

Top 37%
×9stories
+181ft-148ft

Overall

9553

Males

7051

M55-59

7051

30K→20M

18.6 - 20.0 mi

Top 42%
×5stories
+64ft-50ft

Overall

10848

Males

7432

M55-59

7432

20M→21M

20.0 - 21.0 mi

Top 56%
×8stories
+106ft-24ft

Overall

14291

Males

8794

M55-59

8794

21M→35K

21.0 - 21.8 mi

Top 58%
×7stories
+17ft-86ft

Overall

14907

Males

9070

M55-59

9070

35K→23M

21.8 - 23.0 mi

Top 61%
×5stories
+23ft-63ft

Overall

15668

Males

9389

M55-59

9389

23M→24M

23.0 - 24.0 mi

Top 55%
×6stories
+12ft-82ft

Overall

14087

Males

8561

M55-59

8561

24M→40K

24.0 - 24.9 mi

Top 53%
×1story
+6ft-20ft

Overall

13432

Males

8144

M55-59

8144

40K→25.2M

24.9 - 25.2 mi

Top 43%
×1story
+13ft-16ft

Overall

11111

Males

6936

M55-59

6936

25.2M→Finish

25.2 - 26.2 mi

Top 31%
×2stories
+22ft-21ft

Overall

7819

Males

5330

M55-59

5330

Passing Analysis

Category:
Athletes Passed
1447*
Passed By
3475
Net Change
-2030
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8158
5K → 10K190309-119#8158#8277
10K → 15K99374-275#8277#8552
15K → 20K142355-213#8552#8765
20K → Half2449-25#8765#8790
Half → 25K200195+5#8790#8785
25K → 30K256338-82#8785#8867
30K → 20M91182-91#8867#8958
20M → 21M56370-314#8958#9272
21M → 35K35238-203#9272#9475
35K → 23M57564-508#9475#9983
23M → 24M57236-180#9983#10163
24M → 40K48*200-152#10163#10315
40K → 25.2M4543+2#10315#10313
25.2M → Finish14722+125#10313#10188
TOTALS1447*3475-2030

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

Passing Visuals

Category:

📈Position Graph

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🎨Heatmap Timeline

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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