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BOSTON MARATHON 2024

Kai Un Chan

Bib: 1058•M

0:00
0:00
/ mi
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Overall
#0 / 25550
Top 26%
Gender (Male)
#0 / 14578
Top 37%
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
19:33
Rank: #2063
Start → 5K
6:18/mi
19:33 split
10K· 6.21 mi
39:50
Rank: #2586 (-523)
5K → 10K
6:32/mi
20:17 split
15K· 9.32 mi
1:00:03
Rank: #2619 (-33)
10K → 15K
6:30/mi
20:13 split
20K· 12.43 mi
1:20:44
Rank: #2669 (-50)
15K → 20K
6:39/mi
20:41 split
Half· 13.11 mi
1:25:07
Rank: #2638 (+31)
20K → Half
6:25/mi
4:23 split
25K· 15.53 mi
1:41:27
Rank: #2619 (+19)
Half → 25K
6:44/mi
16:20 split
30K· 18.64 mi
2:04:54
Rank: #3080 (-461)
25K → 30K
7:33/mi
23:27 split
20M
2:15:39
Rank: #3332 (-252)
30K → 20M
7:55/mi
10:45 split
21M
2:25:59
Rank: #4037 (-705)
20M → 21M
10:20/mi
10:20 split
35K· 21.75 mi
2:33:08
Rank: #4426 (-389)
21M → 35K
9:33/mi
7:09 split
23M
2:45:29
Rank: #4936 (-510)
35K → 23M
9:52/mi
12:21 split
24M
2:56:04
Rank: #5521 (-585)
23M → 24M
10:35/mi
10:35 split
40K· 24.85 mi
3:05:23
Rank: #6041 (-520)
24M → 40K
10:54/mi
9:19 split
25.2M
3:09:11
Rank: #6183 (-142)
40K → 25.2M
11:01/mi
3:48 split
Finish· 26.22 mi
3:18:36
Rank: #6539 (-356)
25.2M → Finish
9:14/mi
9:25 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:25:07
Pace6:30 /mi
2nd Half
Distance13.11 mi
Time1:53:29
Pace8:39 /mi
📊Positive Split: 33.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:19:5419:336:1819:33
6:18
-
10K
6.21 mi10:40:1139:506:2520:17
6:32
+0:14
15K
9.32 mi11:00:241:00:036:2720:13
6:30
-0:02
20K
12.43 mi11:21:051:20:446:3020:41
6:39
+0:09
Half
13.11 mi11:25:281:25:076:304:23
6:25
-0:14
25K
15.53 mi11:41:481:41:276:3216:20
6:44
+0:19
30K
18.64 mi12:05:152:04:546:4223:27
7:33
+0:49
20M
20.00 mi12:16:002:15:396:4710:45
7:55
+0:22
21M
21.00 mi12:26:202:25:596:5710:20
10:20
+2:25
35K
21.75 mi12:33:292:33:087:027:09
9:33
-0:47
23M
23.00 mi12:45:502:45:297:1212:21
9:52
+0:19
24M
24.00 mi12:56:252:56:047:2010:35
10:35
+0:43
40K
24.85 mi13:05:443:05:237:289:19
10:54
+0:19
25.2M
25.20 mi13:09:323:09:117:303:48
11:01
+0:07
Finish
26.22 mi13:18:573:18:367:359:25
9:14
-1:47

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

6:18 /mi

Average Pace

7:35 /mi

Slowest Pace

11:01 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:41:27

51% of race

Time at Steady Pace

34:12

17% of race

Time at Slower Pace

1:02:57

32% of race

Average Pace: 7:34 /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 mi10:19:5419:336:1819:33
6:18
#2063
10K
6.21 mi10:40:1139:506:2520:17
6:32
#2586
15K
9.32 mi11:00:241:00:036:2720:13
6:30
#2619
20K
12.43 mi11:21:051:20:446:3020:41
6:39
#2669
Half
13.11 mi11:25:281:25:076:304:23
6:25
#2638
25K
15.53 mi11:41:481:41:276:3216:20
6:44
#2619
30K
18.64 mi12:05:152:04:546:4223:27
7:33
#3080
20M
20.00 mi12:16:002:15:396:4710:45
7:55
#3332
21M
21.00 mi12:26:202:25:596:5710:20
10:20
#4037
35K
21.75 mi12:33:292:33:087:027:09
9:33
#4426
23M
23.00 mi12:45:502:45:297:1212:21
9:52
#4936
24M
24.00 mi12:56:252:56:047:2010:35
10:35
#5521
40K
24.85 mi13:05:443:05:237:289:19
10:54
#6041
25.2M
25.20 mi13:09:323:09:117:303:48
11:01
#6183
Finish
26.22 mi13:18:573:18:367:359:25
9:14
#6539
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi2063199819982765(Top 11%)2647(Top 18%)2647(Top 55%)
10K6.21 mi3.10 mi2586-5232488-4902488-4903200(Top 13%)3043(Top 21%)3043(Top 63%)
15K9.32 mi3.11 mi2619-332517-292517-292765(Top 11%)2647(Top 18%)2647(Top 55%)
20K12.43 mi3.11 mi2669-502558-412558-412962(Top 12%)2822(Top 19%)2822(Top 58%)
Half13.11 mi0.68 mi2638+312528+302528+302266(Top 9%)2182(Top 15%)2182(Top 45%)
25K15.53 mi2.42 mi2619+192502+262502+262851(Top 11%)2694(Top 18%)2694(Top 56%)
30K18.64 mi3.11 mi3080-4612921-4192921-4195329(Top 21%)4580(Top 31%)4580(Top 94%)
20M20.00 mi1.36 mi3332-2523135-2143135-2146271(Top 25%)5021(Top 34%)5021(Top 104%)
21M21.00 mi1.00 mi4037-7053738-6033738-60314221(Top 56%)8755(Top 60%)8755(Top 181%)
35K21.75 mi0.75 mi4426-3894053-3154053-31515655(Top 61%)9440(Top 65%)9440(Top 195%)
23M23.00 mi1.25 mi4936-5104412-3594412-35914961(Top 59%)9024(Top 62%)9024(Top 186%)
24M24.00 mi1.00 mi5521-5854810-3984810-39818074(Top 71%)10536(Top 72%)10536(Top 217%)
40K24.85 mi0.85 mi6041-5205131-3215131-32117787(Top 70%)10335(Top 71%)10335(Top 213%)
25.2M25.20 mi0.35 mi6183-1425206-755206-7514474(Top 57%)8642(Top 59%)8642(Top 178%)
Finish26.22 mi1.02 mi6539-3565398-1925398-19215290(Top 60%)9109(Top 62%)9109(Top 188%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 11%
×21story building
+97ft-345ft

Overall

2765

Males

2647

M18-39

2647

5K→10K

3.1 - 6.2 mi

Top 13%
×5story building
+79ft-138ft

Overall

3200

Males

3043

M18-39

3043

10K→15K

6.2 - 9.3 mi

Top 11%
×3story building
+67ft-78ft

Overall

2765

Males

2647

M18-39

2647

15K→20K

9.3 - 12.4 mi

Top 12%
×5story building
+106ft-86ft

Overall

2962

Males

2822

M18-39

2822

20K→Half

12.4 - 13.1 mi

Top 9%
×2story building
+19ft-37ft

Overall

2266

Males

2182

M18-39

2182

Half→25K

13.1 - 15.5 mi

Top 11%
×4story building
+66ft-88ft

Overall

2851

Males

2694

M18-39

2694

25K→30K

15.5 - 18.6 mi

Top 21%
×9story building
+181ft-148ft

Overall

5329

Males

4580

M18-39

4580

30K→20M

18.6 - 20.0 mi

Top 25%
×5story building
+64ft-50ft

Overall

6271

Males

5021

M18-39

5021

20M→21M

20.0 - 21.0 mi

Top 56%
×8story building
+106ft-24ft

Overall

14221

Males

8755

M18-39

8755

21M→35K

21.0 - 21.8 mi

Top 61%
×7story building
+17ft-86ft

Overall

15655

Males

9440

M18-39

9440

35K→23M

21.8 - 23.0 mi

Top 59%
×5story building
+23ft-63ft

Overall

14961

Males

9024

M18-39

9024

23M→24M

23.0 - 24.0 mi

Top 71%
×6story building
+12ft-82ft

Overall

18074

Males

10536

M18-39

10536

24M→40K

24.0 - 24.9 mi

Top 70%
×1story
+6ft-20ft

Overall

17787

Males

10335

M18-39

10335

40K→25.2M

24.9 - 25.2 mi

Top 57%
×1story
+13ft-16ft

Overall

14474

Males

8642

M18-39

8642

25.2M→Finish

25.2 - 26.2 mi

Top 60%
×2story building
+22ft-21ft

Overall

15290

Males

9109

M18-39

9109

Passing Analysis

Category:
Athletes Passed
468
Passed By
4944
Net Change
-4476
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2063
5K → 10K21544-523#2063#2586
10K → 15K74107-33#2586#2619
15K → 20K77127-50#2619#2669
20K → Half332+31#2669#2638
Half → 25K9778+19#2638#2619
25K → 30K56517-461#2619#3080
30K → 20M30282-252#3080#3332
20M → 21M10715-705#3332#4037
21M → 35K7396-389#4037#4426
35K → 23M17527-510#4426#4936
23M → 24M12597-585#4936#5521
24M → 40K11531-520#5521#6041
40K → 25.2M10152-142#6041#6183
25.2M → Finish13369-356#6183#6539
TOTALS4684944-4476
📊

Passing Visuals

Category:
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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