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BOSTON MARATHON 2024

I-Heng Chou

Bib: 6778•M

0:00
0:00
/ mi
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Overall
#0 / 25550
Top 43%
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
20:27
Rank: #3902
Start → 5K
20:27 | 6:35/mi
10K· 6.21 mi
41:55
Rank: #4955 (-1053)
5K → 10K
21:28 | 6:55/mi
15K· 9.32 mi
1:03:41
Rank: #5435 (-480)
10K → 15K
21:46 | 7:00/mi
20K· 12.43 mi
1:26:24
Rank: #5874 (-439)
15K → 20K
22:43 | 7:19/mi
Half· 13.11 mi
1:31:17
Rank: #5899 (-25)
20K → Half
4:53 | 7:09/mi
25K· 15.53 mi
1:49:31
Rank: #6033 (-134)
Half → 25K
18:14 | 7:31/mi
30K· 18.64 mi
2:21:54
Rank: #8943 (-2910)
25K → 30K
32:23 | 10:25/mi
20M
2:34:59
Rank: #9430 (-487)
30K → 20M
13:05 | 9:38/mi
21M
2:45:09
Rank: #9692 (-262)
20M → 21M
10:10 | 10:10/mi
35K· 21.75 mi
2:51:35
Rank: #9730 (-38)
21M → 35K
6:26 | 8:36/mi
23M
3:03:47
Rank: #10061 (-331)
35K → 23M
12:12 | 9:45/mi
24M
3:12:42
Rank: #10112 (-51)
23M → 24M
8:55 | 8:55/mi
40K· 24.85 mi
3:21:31
Rank: #10407 (-295)
24M → 40K
8:49 | 10:19/mi
25.2M
3:26:37
Rank: #10823 (-416)
40K → 25.2M
5:06 | 14:47/mi
Finish· 26.22 mi
3:35:59
Rank: #10989 (-166)
25.2M → Finish
9:22 | 9:11/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:31:17
Pace6:58 /mi
2nd Half
Distance13.11 mi
Time2:04:42
Pace9:31 /mi
📊Positive Split: 36.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:26:4220:276:3520:27
6:35
-
10K
6.21 mi10:48:1041:556:4521:28
6:55
+0:20
15K
9.32 mi11:09:561:03:416:5021:46
7:00
+0:05
20K
12.43 mi11:32:391:26:246:5722:43
7:19
+0:19
Half
13.11 mi11:37:321:31:176:584:53
7:09
-0:10
25K
15.53 mi11:55:461:49:317:0318:14
7:31
+0:22
30K
18.64 mi12:28:092:21:547:3732:23
10:25
+2:54
20M
20.00 mi12:41:142:34:597:4513:05
9:38
-0:47
21M
21.00 mi12:51:242:45:097:5210:10
10:10
+0:32
35K
21.75 mi12:57:502:51:357:536:26
8:36
-1:34
23M
23.00 mi13:10:023:03:477:5912:12
9:45
+1:09
24M
24.00 mi13:18:573:12:428:028:55
8:55
-0:50
40K
24.85 mi13:27:463:21:318:068:49
10:19
+1:24
25.2M
25.20 mi13:32:523:26:378:125:06
14:47
+4:28
Finish
26.22 mi13:42:143:35:598:159:22
9:11
-5:36

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

6:35 /mi

Average Pace

8:15 /mi

Slowest Pace

14:47 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:49:31

51% of race

Time at Steady Pace

50:00

23% of race

Time at Slower Pace

56:28

26% of race

Average Pace: 8:14 /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 mi10:26:4220:276:3520:27
6:35
#3902
10K
6.21 mi10:48:1041:556:4521:28
6:55
#4955
15K
9.32 mi11:09:561:03:416:5021:46
7:00
#5435
20K
12.43 mi11:32:391:26:246:5722:43
7:19
#5874
Half
13.11 mi11:37:321:31:176:584:53
7:09
#5899
25K
15.53 mi11:55:461:49:317:0318:14
7:31
#6033
30K
18.64 mi12:28:092:21:547:3732:23
10:25
#8943
20M
20.00 mi12:41:142:34:597:4513:05
9:38
#9430
21M
21.00 mi12:51:242:45:097:5210:10
10:10
#9692
35K
21.75 mi12:57:502:51:357:536:26
8:36
#9730
23M
23.00 mi13:10:023:03:477:5912:12
9:45
#10061
24M
24.00 mi13:18:573:12:428:028:55
8:55
#10112
40K
24.85 mi13:27:463:21:318:068:49
10:19
#10407
25.2M
25.20 mi13:32:523:26:378:125:06
14:47
#10823
Finish
26.22 mi13:42:143:35:598:159:22
9:11
#10989
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi3902369536956253(Top 24%)5573(Top 38%)5573(Top 115%)
10K6.21 mi3.10 mi4955-10534599-9044599-9046078(Top 24%)5471(Top 38%)5471(Top 113%)
15K9.32 mi3.11 mi5435-4804990-3914990-3916253(Top 24%)5573(Top 38%)5573(Top 115%)
20K12.43 mi3.11 mi5874-4395303-3135303-3137062(Top 28%)6036(Top 41%)6036(Top 124%)
Half13.11 mi0.68 mi5899-255318-155318-156699(Top 26%)5809(Top 40%)5809(Top 120%)
25K15.53 mi2.42 mi6033-1345385-675385-677104(Top 28%)5887(Top 40%)5887(Top 121%)
30K18.64 mi3.11 mi8943-29107139-17547139-175418583(Top 73%)11195(Top 77%)11195(Top 231%)
20M20.00 mi1.36 mi9430-4877326-1877326-18715044(Top 59%)9315(Top 64%)9315(Top 192%)
21M21.00 mi1.00 mi9692-2627403-777403-7713592(Top 53%)8469(Top 58%)8469(Top 175%)
35K21.75 mi0.75 mi9730-387377+267377+2611281(Top 44%)7347(Top 50%)7347(Top 152%)
23M23.00 mi1.25 mi10061-3317480-1037480-10314509(Top 57%)8804(Top 60%)8804(Top 182%)
24M24.00 mi1.00 mi10112-517461+197461+1911699(Top 46%)7412(Top 51%)7412(Top 153%)
40K24.85 mi0.85 mi10407-2957560-997560-9916067(Top 63%)9490(Top 65%)9490(Top 196%)
25.2M25.20 mi0.35 mi10823-4167733-1737733-17322736(Top 89%)12869(Top 88%)12869(Top 265%)
Finish26.22 mi1.02 mi10989-1667771-387771-3815090(Top 59%)9025(Top 62%)9025(Top 186%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 24%
×21stories
+97ft-345ft

Overall

6253

Males

5573

M18-39

5573

5K→10K

3.1 - 6.2 mi

Top 24%
×5stories
+79ft-138ft

Overall

6078

Males

5471

M18-39

5471

10K→15K

6.2 - 9.3 mi

Top 24%
×3stories
+67ft-78ft

Overall

6253

Males

5573

M18-39

5573

15K→20K

9.3 - 12.4 mi

Top 28%
×5stories
+106ft-86ft

Overall

7062

Males

6036

M18-39

6036

20K→Half

12.4 - 13.1 mi

Top 26%
×2stories
+19ft-37ft

Overall

6699

Males

5809

M18-39

5809

Half→25K

13.1 - 15.5 mi

Top 28%
×4stories
+66ft-88ft

Overall

7104

Males

5887

M18-39

5887

25K→30K

15.5 - 18.6 mi

Top 73%
×9stories
+181ft-148ft

Overall

18583

Males

11195

M18-39

11195

30K→20M

18.6 - 20.0 mi

Top 59%
×5stories
+64ft-50ft

Overall

15044

Males

9315

M18-39

9315

20M→21M

20.0 - 21.0 mi

Top 53%
×8stories
+106ft-24ft

Overall

13592

Males

8469

M18-39

8469

21M→35K

21.0 - 21.8 mi

Top 44%
×7stories
+17ft-86ft

Overall

11281

Males

7347

M18-39

7347

35K→23M

21.8 - 23.0 mi

Top 57%
×5stories
+23ft-63ft

Overall

14509

Males

8804

M18-39

8804

23M→24M

23.0 - 24.0 mi

Top 46%
×6stories
+12ft-82ft

Overall

11699

Males

7412

M18-39

7412

24M→40K

24.0 - 24.9 mi

Top 63%
×1story
+6ft-20ft

Overall

16067

Males

9490

M18-39

9490

40K→25.2M

24.9 - 25.2 mi

Top 89%
×1story
+13ft-16ft

Overall

22736

Males

12869

M18-39

12869

25.2M→Finish

25.2 - 26.2 mi

Top 59%
×2stories
+22ft-21ft

Overall

15090

Males

9025

M18-39

9025

Passing Analysis

Category:
Athletes Passed
669*
Passed By
7754
Net Change
-7087
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3902
5K → 10K171070-1053#3902#4955
10K → 15K55535-480#4955#5435
15K → 20K68507-439#5435#5874
20K → Half1742-25#5874#5899
Half → 25K109243-134#5899#6033
25K → 30K52915-2910#6033#8943
30K → 20M42529-487#8943#9430
20M → 21M64326-262#9430#9692
21M → 35K68106-38#9692#9730
35K → 23M70399-331#9730#10061
23M → 24M83134-51#10061#10112
24M → 40K31*326-295#10112#10407
40K → 25.2M3419-416#10407#10823
25.2M → Finish37203-166#10823#10989
TOTALS669*7754-7087

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

📊

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