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BOSTON MARATHON 2024

Chun I Chen

Bib: 5140•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Top 41%
Gender (Male)
#0 / 14578
Masters (Masters Men)
#0 / 9729
Top 42%
Division (M40-44)
#0 / 2009
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:10
Rank: #5761
Start → 5K
21:10 | 6:49/mi
10K· 6.21 mi
43:10
Rank: #6479 (-718)
5K → 10K
22:00 | 7:05/mi
15K· 9.32 mi
1:06:15
Rank: #7258 (-779)
10K → 15K
23:05 | 7:26/mi
20K· 12.43 mi
1:30:58
Rank: #8264 (-1006)
15K → 20K
24:43 | 7:57/mi
Half· 13.11 mi
1:36:07
Rank: #8320 (-56)
20K → Half
5:09 | 7:33/mi
25K· 15.53 mi
1:55:32
Rank: #8618 (-298)
Half → 25K
19:25 | 8:00/mi
30K· 18.64 mi
2:22:28
Rank: #9148 (-530)
25K → 30K
26:56 | 8:40/mi
20M
2:35:09
Rank: #9479 (-331)
30K → 20M
12:41 | 9:20/mi
21M
2:45:05
Rank: #9667 (-188)
20M → 21M
9:56 | 9:56/mi
35K· 21.75 mi
2:51:31
Rank: #9711 (-44)
21M → 35K
6:26 | 8:36/mi
23M
3:03:14
Rank: #9895 (-184)
35K → 23M
11:43 | 9:21/mi
24M
3:12:30
Rank: #10055 (-160)
23M → 24M
9:16 | 9:16/mi
40K· 24.85 mi
3:20:44
Rank: #10204 (-149)
24M → 40K
8:14 | 9:38/mi
25.2M
3:24:15
Rank: #10229 (-25)
40K → 25.2M
3:31 | 10:12/mi
Finish· 26.22 mi
3:33:21
Rank: #10350 (-121)
25.2M → Finish
9:06 | 8:56/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:36:07
Pace7:20 /mi
2nd Half
Distance13.11 mi
Time1:57:14
Pace8:57 /mi
📊Positive Split: 22.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:25:4821:106:4921:10
6:49
-
10K
6.21 mi10:47:4843:106:5722:00
7:05
+0:16
15K
9.32 mi11:10:531:06:157:0623:05
7:26
+0:21
20K
12.43 mi11:35:361:30:587:1924:43
7:57
+0:31
Half
13.11 mi11:40:451:36:077:205:09
7:33
-0:24
25K
15.53 mi12:00:101:55:327:2619:25
8:00
+0:27
30K
18.64 mi12:27:062:22:287:3926:56
8:40
+0:40
20M
20.00 mi12:39:472:35:097:4512:41
9:20
+0:40
21M
21.00 mi12:49:432:45:057:529:56
9:56
+0:36
35K
21.75 mi12:56:092:51:317:536:26
8:36
-1:20
23M
23.00 mi13:07:523:03:147:5811:43
9:21
+0:45
24M
24.00 mi13:17:083:12:308:019:16
9:16
-0:05
40K
24.85 mi13:25:223:20:448:058:14
9:38
+0:22
25.2M
25.20 mi13:28:533:24:158:063:31
10:12
+0:34
Finish
26.22 mi13:37:593:33:218:099:06
8:56
-1:16

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

6:49 /mi

Average Pace

8:09 /mi

Slowest Pace

10:12 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:55:32

54% of race

Time at Steady Pace

42:28

20% of race

Time at Slower Pace

55:21

26% of race

Average Pace: 8:08 /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 mi10:25:4821:106:4921:10
6:49
#5761
10K
6.21 mi10:47:4843:106:5722:00
7:05
#6479
15K
9.32 mi11:10:531:06:157:0623:05
7:26
#7258
20K
12.43 mi11:35:361:30:587:1924:43
7:57
#8264
Half
13.11 mi11:40:451:36:077:205:09
7:33
#8320
25K
15.53 mi12:00:101:55:327:2619:25
8:00
#8618
30K
18.64 mi12:27:062:22:287:3926:56
8:40
#9148
20M
20.00 mi12:39:472:35:097:4512:41
9:20
#9479
21M
21.00 mi12:49:432:45:057:529:56
9:56
#9667
35K
21.75 mi12:56:092:51:317:536:26
8:36
#9711
23M
23.00 mi13:07:523:03:147:5811:43
9:21
#9895
24M
24.00 mi13:17:083:12:308:019:16
9:16
#10055
40K
24.85 mi13:25:223:20:448:058:14
9:38
#10204
25.2M
25.20 mi13:28:533:24:158:063:31
10:12
#10229
Finish
26.22 mi13:37:593:33:218:099:06
8:56
#10350
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi5761525452549110(Top 36%)7349(Top 50%)7349(Top 366%)
10K6.21 mi3.10 mi6479-7185779-5255779-5257174(Top 28%)6233(Top 43%)6233(Top 310%)
15K9.32 mi3.11 mi7258-7796303-5246303-5249110(Top 36%)7349(Top 50%)7349(Top 366%)
20K12.43 mi3.11 mi8264-10066899-5966899-59611514(Top 45%)8412(Top 58%)8412(Top 419%)
Half13.11 mi0.68 mi8320-566928-296928-299447(Top 37%)7400(Top 51%)7400(Top 368%)
25K15.53 mi2.42 mi8618-2987049-1217049-12110239(Top 40%)7616(Top 52%)7616(Top 379%)
30K18.64 mi3.11 mi9148-5307246-1977246-19711528(Top 45%)8033(Top 55%)8033(Top 400%)
20M20.00 mi1.36 mi9479-3317352-1067352-10613750(Top 54%)8731(Top 60%)8731(Top 435%)
21M21.00 mi1.00 mi9667-1887391-397391-3912684(Top 50%)8030(Top 55%)8030(Top 400%)
35K21.75 mi0.75 mi9711-447368+237368+2311279(Top 44%)7345(Top 50%)7345(Top 366%)
23M23.00 mi1.25 mi9895-1847390-227390-2212849(Top 50%)7986(Top 55%)7986(Top 398%)
24M24.00 mi1.00 mi10055-1607435-457435-4513366(Top 52%)8225(Top 56%)8225(Top 409%)
40K24.85 mi0.85 mi10204-1497461-267461-2613600(Top 53%)8222(Top 56%)8222(Top 409%)
25.2M25.20 mi0.35 mi10229-257453+87453+811666(Top 46%)7209(Top 49%)7209(Top 359%)
Finish26.22 mi1.02 mi10350-1217472-197472-1913828(Top 54%)8408(Top 58%)8408(Top 419%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 36%
×21stories
+97ft-345ft

Overall

9110

Males

7349

M40-44

7349

5K→10K

3.1 - 6.2 mi

Top 28%
×5stories
+79ft-138ft

Overall

7174

Males

6233

M40-44

6233

10K→15K

6.2 - 9.3 mi

Top 36%
×3stories
+67ft-78ft

Overall

9110

Males

7349

M40-44

7349

15K→20K

9.3 - 12.4 mi

Top 45%
×5stories
+106ft-86ft

Overall

11514

Males

8412

M40-44

8412

20K→Half

12.4 - 13.1 mi

Top 37%
×2stories
+19ft-37ft

Overall

9447

Males

7400

M40-44

7400

Half→25K

13.1 - 15.5 mi

Top 40%
×4stories
+66ft-88ft

Overall

10239

Males

7616

M40-44

7616

25K→30K

15.5 - 18.6 mi

Top 45%
×9stories
+181ft-148ft

Overall

11528

Males

8033

M40-44

8033

30K→20M

18.6 - 20.0 mi

Top 54%
×5stories
+64ft-50ft

Overall

13750

Males

8731

M40-44

8731

20M→21M

20.0 - 21.0 mi

Top 50%
×8stories
+106ft-24ft

Overall

12684

Males

8030

M40-44

8030

21M→35K

21.0 - 21.8 mi

Top 44%
×7stories
+17ft-86ft

Overall

11279

Males

7345

M40-44

7345

35K→23M

21.8 - 23.0 mi

Top 50%
×5stories
+23ft-63ft

Overall

12849

Males

7986

M40-44

7986

23M→24M

23.0 - 24.0 mi

Top 52%
×6stories
+12ft-82ft

Overall

13366

Males

8225

M40-44

8225

24M→40K

24.0 - 24.9 mi

Top 53%
×1story
+6ft-20ft

Overall

13600

Males

8222

M40-44

8222

40K→25.2M

24.9 - 25.2 mi

Top 46%
×1story
+13ft-16ft

Overall

11666

Males

7209

M40-44

7209

25.2M→Finish

25.2 - 26.2 mi

Top 54%
×2stories
+22ft-21ft

Overall

13828

Males

8408

M40-44

8408

Passing Analysis

Category:
Athletes Passed
884
Passed By
5471
Net Change
-4589
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5761
5K → 10K45763-718#5761#6479
10K → 15K23802-779#6479#7258
15K → 20K371043-1006#7258#8264
20K → Half1167-56#8264#8320
Half → 25K126424-298#8320#8618
25K → 30K132662-530#8618#9148
30K → 20M71402-331#9148#9479
20M → 21M73261-188#9479#9667
21M → 35K72116-44#9667#9711
35K → 23M94277-184#9711#9895
23M → 24M60219-160#9895#10055
24M → 40K50199-149#10055#10204
40K → 25.2M3257-25#10204#10229
25.2M → Finish58179-121#10229#10350
TOTALS8845471-4589
📊

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