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BOSTON MARATHON 2024

Lien-Hsun Chen

Bib: 9788•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
23:33
Rank: #11398
Start → 5K
23:33 | 7:35/mi
10K· 6.21 mi
46:08
Rank: #9807 (+1591)
5K → 10K
22:35 | 7:16/mi
15K· 9.32 mi
1:08:47
Rank: #9186 (+621)
10K → 15K
22:39 | 7:17/mi
20K· 12.43 mi
1:32:38
Rank: #9273 (-87)
15K → 20K
23:51 | 7:41/mi
Half· 13.11 mi
1:37:46
Rank: #9268 (+5)
20K → Half
5:08 | 7:31/mi
25K· 15.53 mi
1:58:24
Rank: #9942 (-674)
Half → 25K
20:38 | 8:31/mi
30K· 18.64 mi
2:30:03
Rank: #12004 (-2062)
25K → 30K
31:39 | 10:11/mi
20M
2:44:58
Rank: #12799 (-795)
30K → 20M
14:55 | 10:59/mi
21M
2:56:16
Rank: #13183 (-384)
20M → 21M
11:18 | 11:18/mi
35K· 21.75 mi
3:06:37
Rank: #14164 (-981)
21M → 35K
10:21 | 13:50/mi
23M
3:20:42
Rank: #14689 (-525)
35K → 23M
14:05 | 11:15/mi
24M
3:29:38
Rank: #14512 (+177)
23M → 24M
8:56 | 8:56/mi
40K· 24.85 mi
3:36:58
Rank: #14286 (+226)
24M → 40K
7:20 | 8:35/mi
25.2M
3:41:03
Rank: #14344 (-58)
40K → 25.2M
4:05 | 11:50/mi
Finish· 26.22 mi
3:49:28
Rank: #14153 (+191)
25.2M → Finish
8:25 | 8:16/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:37:46
Pace7:27 /mi
2nd Half
Distance13.11 mi
Time2:11:42
Pace10:03 /mi
📊Positive Split: 34.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:49:2723:337:3523:33
7:35
-
10K
6.21 mi11:12:0246:087:2522:35
7:16
-0:19
15K
9.32 mi11:34:411:08:477:2322:39
7:17
+0:01
20K
12.43 mi11:58:321:32:387:2723:51
7:41
+0:24
Half
13.11 mi12:03:401:37:467:275:08
7:31
-0:10
25K
15.53 mi12:24:181:58:247:3720:38
8:31
+1:00
30K
18.64 mi12:55:572:30:038:0331:39
10:11
+1:40
20M
20.00 mi13:10:522:44:588:1514:55
10:59
+0:48
21M
21.00 mi13:22:102:56:168:2411:18
11:18
+0:19
35K
21.75 mi13:32:313:06:378:3510:21
13:50
+2:32
23M
23.00 mi13:46:363:20:428:4414:05
11:15
-2:35
24M
24.00 mi13:55:323:29:388:448:56
8:56
-2:19
40K
24.85 mi14:02:523:36:588:447:20
8:35
-0:21
25.2M
25.20 mi14:06:573:41:038:464:05
11:50
+3:15
Finish
26.22 mi14:15:223:49:288:458:25
8:16
-3:34

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

7:16 /mi

Average Pace

8:45 /mi

Slowest Pace

13:50 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:13:55

32% of race

Time at Steady Pace

1:09:10

30% of race

Time at Slower Pace

1:26:23

38% of race

Average Pace: 8:45 /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 mi10:49:2723:337:3523:33
7:35
#11398
10K
6.21 mi11:12:0246:087:2522:35
7:16
#9807
15K
9.32 mi11:34:411:08:477:2322:39
7:17
#9186
20K
12.43 mi11:58:321:32:387:2723:51
7:41
#9273
Half
13.11 mi12:03:401:37:467:275:08
7:31
#9268
25K
15.53 mi12:24:181:58:247:3720:38
8:31
#9942
30K
18.64 mi12:55:572:30:038:0331:39
10:11
#12004
20M
20.00 mi13:10:522:44:588:1514:55
10:59
#12799
21M
21.00 mi13:22:102:56:168:2411:18
11:18
#13183
35K
21.75 mi13:32:313:06:378:3510:21
13:50
#14164
23M
23.00 mi13:46:363:20:428:4414:05
11:15
#14689
24M
24.00 mi13:55:323:29:388:448:56
8:56
#14512
40K
24.85 mi14:02:523:36:588:447:20
8:35
#14286
25.2M
25.20 mi14:06:573:41:038:464:05
11:50
#14344
Finish
26.22 mi14:15:223:49:288:458:25
8:16
#14153
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi11398858885888106(Top 32%)6782(Top 47%)6782(Top 306%)
10K6.21 mi3.10 mi9807+15917829+7597829+7598428(Top 33%)7004(Top 48%)7004(Top 316%)
15K9.32 mi3.11 mi9186+6217463+3667463+3668106(Top 32%)6782(Top 47%)6782(Top 306%)
20K12.43 mi3.11 mi9273-877466-37466-39586(Top 38%)7453(Top 51%)7453(Top 336%)
Half13.11 mi0.68 mi9268+57455+117455+119303(Top 36%)7341(Top 50%)7341(Top 331%)
25K15.53 mi2.42 mi9942-6747727-2727727-27213105(Top 51%)8981(Top 62%)8981(Top 405%)
30K18.64 mi3.11 mi12004-20628624-8978624-89717939(Top 70%)10889(Top 75%)10889(Top 491%)
20M20.00 mi1.36 mi12799-7958917-2938917-29319224(Top 75%)11361(Top 78%)11361(Top 512%)
21M21.00 mi1.00 mi13183-3849007-909007-9017129(Top 67%)10174(Top 70%)10174(Top 459%)
35K21.75 mi0.75 mi14164-9819419-4129419-41224134(Top 94%)13719(Top 94%)13719(Top 619%)
23M23.00 mi1.25 mi14689-5259569-1509569-15019044(Top 75%)11091(Top 76%)11091(Top 500%)
24M24.00 mi1.00 mi14512+1779447+1229447+12211802(Top 46%)7475(Top 51%)7475(Top 337%)
40K24.85 mi0.85 mi14286+2269324+1239324+1238759(Top 34%)5790(Top 40%)5790(Top 261%)
25.2M25.20 mi0.35 mi14344-589330-69330-616925(Top 66%)9883(Top 68%)9883(Top 446%)
Finish26.22 mi1.02 mi14153+1919227+1039227+10310099(Top 40%)6522(Top 45%)6522(Top 294%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 32%
×21stories
+97ft-345ft

Overall

8106

Males

6782

M45-49

6782

5K→10K

3.1 - 6.2 mi

Top 33%
×5stories
+79ft-138ft

Overall

8428

Males

7004

M45-49

7004

10K→15K

6.2 - 9.3 mi

Top 32%
×3stories
+67ft-78ft

Overall

8106

Males

6782

M45-49

6782

15K→20K

9.3 - 12.4 mi

Top 38%
×5stories
+106ft-86ft

Overall

9586

Males

7453

M45-49

7453

20K→Half

12.4 - 13.1 mi

Top 36%
×2stories
+19ft-37ft

Overall

9303

Males

7341

M45-49

7341

Half→25K

13.1 - 15.5 mi

Top 51%
×4stories
+66ft-88ft

Overall

13105

Males

8981

M45-49

8981

25K→30K

15.5 - 18.6 mi

Top 70%
×9stories
+181ft-148ft

Overall

17939

Males

10889

M45-49

10889

30K→20M

18.6 - 20.0 mi

Top 75%
×5stories
+64ft-50ft

Overall

19224

Males

11361

M45-49

11361

20M→21M

20.0 - 21.0 mi

Top 67%
×8stories
+106ft-24ft

Overall

17129

Males

10174

M45-49

10174

21M→35K

21.0 - 21.8 mi

Top 94%
×7stories
+17ft-86ft

Overall

24134

Males

13719

M45-49

13719

35K→23M

21.8 - 23.0 mi

Top 75%
×5stories
+23ft-63ft

Overall

19044

Males

11091

M45-49

11091

23M→24M

23.0 - 24.0 mi

Top 46%
×6stories
+12ft-82ft

Overall

11802

Males

7475

M45-49

7475

24M→40K

24.0 - 24.9 mi

Top 34%
×1story
+6ft-20ft

Overall

8759

Males

5790

M45-49

5790

40K→25.2M

24.9 - 25.2 mi

Top 66%
×1story
+13ft-16ft

Overall

16925

Males

9883

M45-49

9883

25.2M→Finish

25.2 - 26.2 mi

Top 40%
×2stories
+22ft-21ft

Overall

10099

Males

6522

M45-49

6522

Passing Analysis

Category:
Athletes Passed
3306*
Passed By
6058
Net Change
-2755
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11398
5K → 10K1596*5+1591#11398#9807
10K → 15K6309+621#9807#9186
15K → 20K179266-87#9186#9273
20K → Half3732+5#9273#9268
Half → 25K71744-674#9268#9942
25K → 30K222082-2062#9942#12004
30K → 20M26821-795#12004#12799
20M → 21M49433-384#12799#13183
21M → 35K6987-981#13183#14164
35K → 23M44569-525#14164#14689
23M → 24M19619+177#14689#14512
24M → 40K2271+226#14512#14286
40K → 25.2M2179-58#14286#14344
25.2M → Finish20211+191#14344#14153
TOTALS3306*6058-2755

* 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