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BOSTON MARATHON 2024

Chih-Kai Huang

Bib: 10479 M TW

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

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
8:58/mi
27:51
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
9:46/mi
58:12
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
10:48/mi
1:31:45
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
12:18/mi
2:09:58
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
12:38/mi
2:18:35
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
12:42/mi
2:49:22
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
14:08/mi
3:33:17
↑ 181↓ 1480.2%
138 ft elev
20M
13:52/mi
3:52:07
↑ 64↓ 500.2%
148 ft elev
21M
18:02/mi
4:10:09
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
13:59/mi
4:20:37
↑ 17↓ 861.7%
156 ft elev
23M
15:08/mi
4:39:34
↑ 23↓ 630.6%
116 ft elev
24M
14:29/mi
4:54:03
↓ 821.3%
34 ft elev
40K· 24.85 mi
15:23/mi
5:07:12
↓ 200.3%
20 ft elev
25.2M
17:56/mi
5:13:23
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
15:18/mi
5:28:58
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

Half Splits

1st Half· via Half
2:18:3510:34 /mi⚡ faster
2nd Half
3:10:2314:31 /mi+37.4%
Positive split — 37.4% slower in the second half
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Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:56:0927:518:5827:51
8:58
-
10K
6.21 mi11:26:3058:129:2230:21
9:46
+0:48
15K
9.32 mi12:00:031:31:459:5133:33
10:48
+1:02
20K
12.43 mi12:38:162:09:5810:2738:13
12:18
+1:30
Half
13.11 mi12:46:532:18:3510:348:37
12:38
+0:20
25K
15.53 mi13:17:402:49:2210:5430:47
12:42
+0:04
30K
18.64 mi14:01:353:33:1711:2643:55
14:08
+1:26
20M
20.00 mi14:20:253:52:0711:3618:50
13:52
-0:16
21M
21.00 mi14:38:274:10:0911:5518:02
18:02
+4:10
35K
21.75 mi14:48:554:20:3711:5910:28
13:59
-4:03
23M
23.00 mi15:07:524:39:3412:0918:57
15:08
+1:09
24M
24.00 mi15:22:214:54:0312:1514:29
14:29
-0:39
40K
24.85 mi15:35:305:07:1212:2213:09
15:23
+0:54
25.2M
25.20 mi15:41:415:13:2312:266:11
17:56
+2:33
Finish
26.22 mi15:57:165:28:5812:3315:35
15:18
-2:38

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

8:58 /mi

Average Pace

12:33 /mi

Slowest Pace

18:02 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:49:22

51% of race

Time at Steady Pace

1:46:39

32% of race

Time at Slower Pace

52:57

16% of race

Average Pace: 12:33 /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 mi10:56:0927:518:5827:51
8:58
#19919
10K
6.21 mi11:26:3058:129:2230:21
9:46
#21176
15K
9.32 mi12:00:031:31:459:5133:33
10:48
#22113
20K
12.43 mi12:38:162:09:5810:2738:13
12:18
#22939
Half
13.11 mi12:46:532:18:3510:348:37
12:38
#23151
25K
15.53 mi13:17:402:49:2210:5430:47
12:42
#23395
30K
18.64 mi14:01:353:33:1711:2643:55
14:08
#23682
20M
20.00 mi14:20:253:52:0711:3618:50
13:52
#23703
21M
21.00 mi14:38:274:10:0911:5518:02
18:02
#23871
35K
21.75 mi14:48:554:20:3711:5910:28
13:59
#23897
23M
23.00 mi15:07:524:39:3412:0918:57
15:08
#23963
24M
24.00 mi15:22:214:54:0312:1514:29
14:29
#24006
40K
24.85 mi15:35:305:07:1212:2213:09
15:23
#24072
25.2M
25.20 mi15:41:415:13:2312:266:11
17:56
#24114
Finish
26.22 mi15:57:165:28:5812:3315:35
15:18
#24264
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi199191203912039234541374513745
10K6.21 mi3.10 mi21176-125712660-62112660-621220151305013050
15K9.32 mi3.11 mi22113-93713108-44813108-448234541374513745
20K12.43 mi3.11 mi22939-82613515-40713515-407242831406614066
Half13.11 mi0.68 mi23151-21213601-8613601-86249871432314323
25K15.53 mi2.42 mi23395-24413683-8213683-82239251384813848
30K18.64 mi3.11 mi23682-28713791-10813791-108243051394613946
20M20.00 mi1.36 mi23703-2113792-113792-1238361363513635
21M21.00 mi1.00 mi23871-16813842-5013842-50252851440214402
35K21.75 mi0.75 mi23897-2613845-313845-3242581379413794
23M23.00 mi1.25 mi23963-6613868-2313868-23247461407014070
24M24.00 mi1.00 mi24006-4313880-1213880-12245491391313913
40K24.85 mi0.85 mi24072-6613902-2213902-22247381402414024
25.2M25.20 mi0.35 mi24114-4213918-1613918-16249921419514195
Finish26.22 mi1.02 mi24264-15013990-7213990-72252461434414344

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 92%
×21story building
+97ft-345ft

Overall

23454

Males

13745

M45-49

13745

5K→10K

3.1 - 6.2 mi

Top 86%
×5story building
+79ft-138ft

Overall

22015

Males

13050

M45-49

13050

10K→15K

6.2 - 9.3 mi

Top 92%
×3story building
+67ft-78ft

Overall

23454

Males

13745

M45-49

13745

15K→20K

9.3 - 12.4 mi

Top 95%
×5story building
+106ft-86ft

Overall

24283

Males

14066

M45-49

14066

20K→Half

12.4 - 13.1 mi

Top 98%
×2story building
+19ft-37ft

Overall

24987

Males

14323

M45-49

14323

Half→25K

13.1 - 15.5 mi

Top 94%
×4story building
+66ft-88ft

Overall

23925

Males

13848

M45-49

13848

25K→30K

15.5 - 18.6 mi

Top 95%
×9story building
+181ft-148ft

Overall

24305

Males

13946

M45-49

13946

30K→20M

18.6 - 20.0 mi

Top 93%
×5story building
+64ft-50ft

Overall

23836

Males

13635

M45-49

13635

20M→21M

20.0 - 21.0 mi

Top 99%
×8story building
+106ft-24ft

Overall

25285

Males

14402

M45-49

14402

21M→35K

21.0 - 21.8 mi

Top 95%
×7story building
+17ft-86ft

Overall

24258

Males

13794

M45-49

13794

35K→23M

21.8 - 23.0 mi

Top 97%
×5story building
+23ft-63ft

Overall

24746

Males

14070

M45-49

14070

23M→24M

23.0 - 24.0 mi

Top 96%
×6story building
+12ft-82ft

Overall

24549

Males

13913

M45-49

13913

24M→40K

24.0 - 24.9 mi

Top 97%
×1story
+6ft-20ft

Overall

24738

Males

14024

M45-49

14024

40K→25.2M

24.9 - 25.2 mi

Top 98%
×1story
+13ft-16ft

Overall

24992

Males

14195

M45-49

14195

25.2M→Finish

25.2 - 26.2 mi

Top 99%
×2story building
+22ft-21ft

Overall

25246

Males

14344

M45-49

14344

Passing Analysis

Category:
Athletes Passed
340
Passed By
4685
Net Change
-4345
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19919
5K → 10K331290-1257#19919#21176
10K → 15K25962-937#21176#22113
15K → 20K23849-826#22113#22939
20K → Half3215-212#22939#23151
Half → 25K52296-244#23151#23395
25K → 30K49336-287#23395#23682
30K → 20M4768-21#23682#23703
20M → 21M17185-168#23703#23871
21M → 35K1844-26#23871#23897
35K → 23M2389-66#23897#23963
23M → 24M2366-43#23963#24006
24M → 40K1682-66#24006#24072
40K → 25.2M547-42#24072#24114
25.2M → Finish6156-150#24114#24264
TOTALS3404685-4345

Passing Charts

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