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BOSTON MARATHON 2024

Yutung Chang

Bib: 7514•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Gender (Male)
#0 / 14578
Masters (Masters Men)
#0 / 9729
Division (M45-49)
#0 / 2218
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:34
Rank: #11438
Start → 5K
23:34 | 7:35/mi
10K· 6.21 mi
47:56
Rank: #12210 (-772)
5K → 10K
24:22 | 7:51/mi
15K· 9.32 mi
1:12:05
Rank: #12004 (+206)
10K → 15K
24:09 | 7:46/mi
20K· 12.43 mi
1:37:49
Rank: #12424 (-420)
15K → 20K
25:44 | 8:17/mi
Half· 13.11 mi
1:44:51
Rank: #13361 (-937)
20K → Half
7:02 | 10:19/mi
25K· 15.53 mi
2:04:47
Rank: #12945 (+416)
Half → 25K
19:56 | 8:13/mi
30K· 18.64 mi
2:32:32
Rank: #12852 (+93)
25K → 30K
27:45 | 8:56/mi
20M
2:45:59
Rank: #13133 (-281)
30K → 20M
13:27 | 9:54/mi
21M
2:56:29
Rank: #13243 (-110)
20M → 21M
10:30 | 10:30/mi
35K· 21.75 mi
3:03:57
Rank: #13443 (-200)
21M → 35K
7:28 | 9:59/mi
23M
3:16:48
Rank: #13681 (-238)
35K → 23M
12:51 | 10:16/mi
24M
3:26:26
Rank: #13740 (-59)
23M → 24M
9:38 | 9:38/mi
40K· 24.85 mi
3:35:23
Rank: #13921 (-181)
24M → 40K
8:57 | 10:28/mi
25.2M
3:40:10
Rank: #14151 (-230)
40K → 25.2M
4:47 | 13:52/mi
Finish· 26.22 mi
3:50:21
Rank: #14337 (-186)
25.2M → Finish
10:11 | 10:00/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:44:51
Pace8:00 /mi
2nd Half
Distance13.11 mi
Time2:05:30
Pace9:34 /mi
📊Positive Split: 19.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:30:1923:347:3523:34
7:35
-
10K
6.21 mi10:54:4147:567:4324:22
7:51
+0:16
15K
9.32 mi11:18:501:12:057:4424:09
7:46
-0:05
20K
12.43 mi11:44:341:37:497:5225:44
8:17
+0:31
Half
13.11 mi11:51:361:44:518:007:02
10:19
+2:02
25K
15.53 mi12:11:322:04:478:0219:56
8:13
-2:06
30K
18.64 mi12:39:172:32:328:1127:45
8:56
+0:43
20M
20.00 mi12:52:442:45:598:1813:27
9:54
+0:58
21M
21.00 mi13:03:142:56:298:2410:30
10:30
+0:36
35K
21.75 mi13:10:423:03:578:277:28
9:59
-0:31
23M
23.00 mi13:23:333:16:488:3312:51
10:16
+0:17
24M
24.00 mi13:33:113:26:268:369:38
9:38
-0:38
40K
24.85 mi13:42:083:35:238:408:57
10:28
+0:50
25.2M
25.20 mi13:46:553:40:108:444:47
13:52
+3:24
Finish
26.22 mi13:57:063:50:218:4810:11
10:00
-3:52

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

7:35 /mi

Average Pace

8:48 /mi

Slowest Pace

13:52 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:25:30

63% of race

Time at Steady Pace

1:20:04

35% of race

Time at Slower Pace

4:47

2% of race

Average Pace: 8:47 /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 mi10:30:1923:347:3523:34
7:35
#11438
10K
6.21 mi10:54:4147:567:4324:22
7:51
#12210
15K
9.32 mi11:18:501:12:057:4424:09
7:46
#12004
20K
12.43 mi11:44:341:37:497:5225:44
8:17
#12424
Half
13.11 mi11:51:361:44:518:007:02
10:19
#13361
25K
15.53 mi12:11:322:04:478:0219:56
8:13
#12945
30K
18.64 mi12:39:172:32:328:1127:45
8:56
#12852
20M
20.00 mi12:52:442:45:598:1813:27
9:54
#13133
21M
21.00 mi13:03:142:56:298:2410:30
10:30
#13243
35K
21.75 mi13:10:423:03:578:277:28
9:59
#13443
23M
23.00 mi13:23:333:16:488:3312:51
10:16
#13681
24M
24.00 mi13:33:113:26:268:369:38
9:38
#13740
40K
24.85 mi13:42:083:35:238:408:57
10:28
#13921
25.2M
25.20 mi13:46:553:40:108:444:47
13:52
#14151
Finish
26.22 mi13:57:063:50:218:4810:11
10:00
#14337
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi114388606860611713(Top 46%)8612(Top 59%)8612(Top 388%)
10K6.21 mi3.10 mi12210-7728896-2908896-29013001(Top 51%)9201(Top 63%)9201(Top 415%)
15K9.32 mi3.11 mi12004+2068770+1268770+12611713(Top 46%)8612(Top 59%)8612(Top 388%)
20K12.43 mi3.11 mi12424-4208955-1858955-18513608(Top 53%)9387(Top 64%)9387(Top 423%)
Half13.11 mi0.68 mi13361-9379331-3769331-37622255(Top 87%)13110(Top 90%)13110(Top 591%)
25K15.53 mi2.42 mi12945+4169136+1959136+19511502(Top 45%)8244(Top 57%)8244(Top 372%)
30K18.64 mi3.11 mi12852+939006+1309006+13012894(Top 50%)8643(Top 59%)8643(Top 390%)
20M20.00 mi1.36 mi13133-2819046-409046-4016105(Top 63%)9807(Top 67%)9807(Top 442%)
21M21.00 mi1.00 mi13243-1109039+79039+714810(Top 58%)9046(Top 62%)9046(Top 408%)
35K21.75 mi0.75 mi13443-2009089-509089-5017061(Top 67%)10139(Top 70%)10139(Top 457%)
23M23.00 mi1.25 mi13681-2389139-509139-5016314(Top 64%)9727(Top 67%)9727(Top 439%)
24M24.00 mi1.00 mi13740-599128+119128+1114997(Top 59%)9014(Top 62%)9014(Top 406%)
40K24.85 mi0.85 mi13921-1819163-359163-3516583(Top 65%)9745(Top 67%)9745(Top 439%)
25.2M25.20 mi0.35 mi14151-2309255-929255-9221351(Top 84%)12138(Top 83%)12138(Top 547%)
Finish26.22 mi1.02 mi14337-1869305-509305-5018326(Top 72%)10629(Top 73%)10629(Top 479%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 46%
×21stories
+97ft-345ft

Overall

11713

Males

8612

M45-49

8612

5K→10K

3.1 - 6.2 mi

Top 51%
×5stories
+79ft-138ft

Overall

13001

Males

9201

M45-49

9201

10K→15K

6.2 - 9.3 mi

Top 46%
×3stories
+67ft-78ft

Overall

11713

Males

8612

M45-49

8612

15K→20K

9.3 - 12.4 mi

Top 53%
×5stories
+106ft-86ft

Overall

13608

Males

9387

M45-49

9387

20K→Half

12.4 - 13.1 mi

Top 87%
×2stories
+19ft-37ft

Overall

22255

Males

13110

M45-49

13110

Half→25K

13.1 - 15.5 mi

Top 45%
×4stories
+66ft-88ft

Overall

11502

Males

8244

M45-49

8244

25K→30K

15.5 - 18.6 mi

Top 50%
×9stories
+181ft-148ft

Overall

12894

Males

8643

M45-49

8643

30K→20M

18.6 - 20.0 mi

Top 63%
×5stories
+64ft-50ft

Overall

16105

Males

9807

M45-49

9807

20M→21M

20.0 - 21.0 mi

Top 58%
×8stories
+106ft-24ft

Overall

14810

Males

9046

M45-49

9046

21M→35K

21.0 - 21.8 mi

Top 67%
×7stories
+17ft-86ft

Overall

17061

Males

10139

M45-49

10139

35K→23M

21.8 - 23.0 mi

Top 64%
×5stories
+23ft-63ft

Overall

16314

Males

9727

M45-49

9727

23M→24M

23.0 - 24.0 mi

Top 59%
×6stories
+12ft-82ft

Overall

14997

Males

9014

M45-49

9014

24M→40K

24.0 - 24.9 mi

Top 65%
×1story
+6ft-20ft

Overall

16583

Males

9745

M45-49

9745

40K→25.2M

24.9 - 25.2 mi

Top 84%
×1story
+13ft-16ft

Overall

21351

Males

12138

M45-49

12138

25.2M→Finish

25.2 - 26.2 mi

Top 72%
×2stories
+22ft-21ft

Overall

18326

Males

10629

M45-49

10629

Passing Analysis

Category:
Athletes Passed
1780
Passed By
4679
Net Change
-2899
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11438
5K → 10K71843-772#11438#12210
10K → 15K325119+206#12210#12004
15K → 20K129549-420#12004#12424
20K → Half6943-937#12424#13361
Half → 25K47054+416#13361#12945
25K → 30K321228+93#12945#12852
30K → 20M75356-281#12852#13133
20M → 21M101211-110#13133#13243
21M → 35K43243-200#13243#13443
35K → 23M60298-238#13443#13681
23M → 24M78137-59#13681#13740
24M → 40K52233-181#13740#13921
40K → 25.2M8238-230#13921#14151
25.2M → Finish41227-186#14151#14337
TOTALS17804679-2899
📊

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