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BOSTON MARATHON 2024

Yung Chang Chang

Bib: 6566•M

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0:00
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Overall
#0 / 25550
Gender (Male)
#0 / 14578
Division (M18-39)
#0 / 4849
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:27
Rank: #11168
Start → 5K
23:27 | 7:33/mi
10K· 6.21 mi
47:40
Rank: #11843 (-675)
5K → 10K
24:13 | 7:48/mi
15K· 9.32 mi
1:12:37
Rank: #12455 (-612)
10K → 15K
24:57 | 8:02/mi
20K· 12.43 mi
1:38:52
Rank: #13053 (-598)
15K → 20K
26:15 | 8:27/mi
Half· 13.11 mi
1:44:43
Rank: #13283 (-230)
20K → Half
5:51 | 8:34/mi
25K· 15.53 mi
2:07:33
Rank: #14102 (-819)
Half → 25K
22:50 | 9:25/mi
30K· 18.64 mi
2:41:21
Rank: #15648 (-1546)
25K → 30K
33:48 | 10:53/mi
20M
2:58:01
Rank: #16508 (-860)
30K → 20M
16:40 | 12:16/mi
21M
3:11:02
Rank: #16978 (-470)
20M → 21M
13:01 | 13:01/mi
35K· 21.75 mi
3:18:38
Rank: #17004 (-26)
21M → 35K
7:36 | 10:10/mi
23M
3:34:36
Rank: #17548 (-544)
35K → 23M
15:58 | 12:45/mi
24M
3:45:49
Rank: #17667 (-119)
23M → 24M
11:13 | 11:13/mi
40K· 24.85 mi
3:55:44
Rank: #17744 (-77)
24M → 40K
9:55 | 11:36/mi
25.2M
3:59:46
Rank: #17710 (+34)
40K → 25.2M
4:02 | 11:42/mi
Finish· 26.22 mi
4:09:22
Rank: #17624 (+86)
25.2M → Finish
9:36 | 9:25/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:44:43
Pace7:59 /mi
2nd Half
Distance13.11 mi
Time2:24:39
Pace11:02 /mi
📊Positive Split: 38.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:29:4723:277:3323:27
7:33
-
10K
6.21 mi10:54:0047:407:4024:13
7:48
+0:15
15K
9.32 mi11:18:571:12:377:4724:57
8:02
+0:14
20K
12.43 mi11:45:121:38:527:5726:15
8:27
+0:25
Half
13.11 mi11:51:031:44:437:595:51
8:34
+0:07
25K
15.53 mi12:13:532:07:338:1322:50
9:25
+0:51
30K
18.64 mi12:47:412:41:218:3933:48
10:53
+1:28
20M
20.00 mi13:04:212:58:018:5416:40
12:16
+1:23
21M
21.00 mi13:17:223:11:029:0613:01
13:01
+0:45
35K
21.75 mi13:24:583:18:389:087:36
10:10
-2:51
23M
23.00 mi13:40:563:34:369:2015:58
12:45
+2:35
24M
24.00 mi13:52:093:45:499:2511:13
11:13
-1:32
40K
24.85 mi14:02:043:55:449:299:55
11:36
+0:23
25.2M
25.20 mi14:06:063:59:469:314:02
11:42
+0:06
Finish
26.22 mi14:15:424:09:229:319:36
9:25
-2:17

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

7:33 /mi

Average Pace

9:31 /mi

Slowest Pace

13:01 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:44:43

42% of race

Time at Steady Pace

1:13:50

30% of race

Time at Slower Pace

1:10:49

28% of race

Average Pace: 9:31 /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 mi10:29:4723:277:3323:27
7:33
#11168
10K
6.21 mi10:54:0047:407:4024:13
7:48
#11843
15K
9.32 mi11:18:571:12:377:4724:57
8:02
#12455
20K
12.43 mi11:45:121:38:527:5726:15
8:27
#13053
Half
13.11 mi11:51:031:44:437:595:51
8:34
#13283
25K
15.53 mi12:13:532:07:338:1322:50
9:25
#14102
30K
18.64 mi12:47:412:41:218:3933:48
10:53
#15648
20M
20.00 mi13:04:212:58:018:5416:40
12:16
#16508
21M
21.00 mi13:17:223:11:029:0613:01
13:01
#16978
35K
21.75 mi13:24:583:18:389:087:36
10:10
#17004
23M
23.00 mi13:40:563:34:369:2015:58
12:45
#17548
24M
24.00 mi13:52:093:45:499:2511:13
11:13
#17667
40K
24.85 mi14:02:043:55:449:299:55
11:36
#17744
25.2M
25.20 mi14:06:063:59:469:314:02
11:42
#17710
Finish
26.22 mi14:15:424:09:229:319:36
9:25
#17624
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi111688494849413663(Top 53%)9473(Top 65%)9473(Top 195%)
10K6.21 mi3.10 mi11843-6758734-2408734-24012597(Top 49%)9036(Top 62%)9036(Top 186%)
15K9.32 mi3.11 mi12455-6128988-2548988-25413663(Top 53%)9473(Top 65%)9473(Top 195%)
20K12.43 mi3.11 mi13053-5989213-2259213-22514530(Top 57%)9766(Top 67%)9766(Top 201%)
Half13.11 mi0.68 mi13283-2309298-859298-8516118(Top 63%)10395(Top 71%)10395(Top 214%)
25K15.53 mi2.42 mi14102-8199606-3089606-30817252(Top 68%)10803(Top 74%)10803(Top 223%)
30K18.64 mi3.11 mi15648-154610151-54510151-54519703(Top 77%)11709(Top 80%)11709(Top 241%)
20M20.00 mi1.36 mi16508-86010459-30810459-30821782(Top 85%)12588(Top 86%)12588(Top 260%)
21M21.00 mi1.00 mi16978-47010628-16910628-16920744(Top 81%)12014(Top 82%)12014(Top 248%)
35K21.75 mi0.75 mi17004-2610619+910619+917628(Top 69%)10444(Top 72%)10444(Top 215%)
23M23.00 mi1.25 mi17548-54410833-21410833-21422116(Top 87%)12642(Top 87%)12642(Top 261%)
24M24.00 mi1.00 mi17667-11910858-2510858-2519775(Top 77%)11405(Top 78%)11405(Top 235%)
40K24.85 mi0.85 mi17744-7710864-610864-619539(Top 76%)11221(Top 77%)11221(Top 231%)
25.2M25.20 mi0.35 mi17710+3410837+2710837+2716565(Top 65%)9719(Top 67%)9719(Top 200%)
Finish26.22 mi1.02 mi17624+8610766+7110766+7116156(Top 63%)9532(Top 65%)9532(Top 197%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 53%
×21stories
+97ft-345ft

Overall

13663

Males

9473

M18-39

9473

5K→10K

3.1 - 6.2 mi

Top 49%
×5stories
+79ft-138ft

Overall

12597

Males

9036

M18-39

9036

10K→15K

6.2 - 9.3 mi

Top 53%
×3stories
+67ft-78ft

Overall

13663

Males

9473

M18-39

9473

15K→20K

9.3 - 12.4 mi

Top 57%
×5stories
+106ft-86ft

Overall

14530

Males

9766

M18-39

9766

20K→Half

12.4 - 13.1 mi

Top 63%
×2stories
+19ft-37ft

Overall

16118

Males

10395

M18-39

10395

Half→25K

13.1 - 15.5 mi

Top 68%
×4stories
+66ft-88ft

Overall

17252

Males

10803

M18-39

10803

25K→30K

15.5 - 18.6 mi

Top 77%
×9stories
+181ft-148ft

Overall

19703

Males

11709

M18-39

11709

30K→20M

18.6 - 20.0 mi

Top 85%
×5stories
+64ft-50ft

Overall

21782

Males

12588

M18-39

12588

20M→21M

20.0 - 21.0 mi

Top 81%
×8stories
+106ft-24ft

Overall

20744

Males

12014

M18-39

12014

21M→35K

21.0 - 21.8 mi

Top 69%
×7stories
+17ft-86ft

Overall

17628

Males

10444

M18-39

10444

35K→23M

21.8 - 23.0 mi

Top 87%
×5stories
+23ft-63ft

Overall

22116

Males

12642

M18-39

12642

23M→24M

23.0 - 24.0 mi

Top 77%
×6stories
+12ft-82ft

Overall

19775

Males

11405

M18-39

11405

24M→40K

24.0 - 24.9 mi

Top 76%
×1story
+6ft-20ft

Overall

19539

Males

11221

M18-39

11221

40K→25.2M

24.9 - 25.2 mi

Top 65%
×1story
+13ft-16ft

Overall

16565

Males

9719

M18-39

9719

25.2M→Finish

25.2 - 26.2 mi

Top 63%
×2stories
+22ft-21ft

Overall

16156

Males

9532

M18-39

9532

Passing Analysis

Category:
Athletes Passed
792
Passed By
7248
Net Change
-6456
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11168
5K → 10K95770-675#11168#11843
10K → 15K89701-612#11843#12455
15K → 20K122720-598#12455#13053
20K → Half21251-230#13053#13283
Half → 25K68887-819#13283#14102
25K → 30K361582-1546#14102#15648
30K → 20M12872-860#15648#16508
20M → 21M21491-470#16508#16978
21M → 35K6490-26#16978#17004
35K → 23M23567-544#17004#17548
23M → 24M38157-119#17548#17667
24M → 40K38115-77#17667#17744
40K → 25.2M5117+34#17744#17710
25.2M → Finish11428+86#17710#17624
TOTALS7927248-6456
📊

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