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BOSTON MARATHON 2024

Tsai Tsung Chen

Bib: 6279•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Top 21%
Gender (Male)
#0 / 14578
Top 31%
Masters (Masters Men)
#0 / 9729
Top 20%
Division (M45-49)
#0 / 2218
Top 27%
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:38
Rank: #4340
Start → 5K
6:38/mi
20:38 split
10K· 6.21 mi
41:30
Rank: #4383 (-43)
5K → 10K
6:43/mi
20:52 split
15K· 9.32 mi
1:02:43
Rank: #4555 (-172)
10K → 15K
6:50/mi
21:13 split
20K· 12.43 mi
1:24:29
Rank: #4724 (-169)
15K → 20K
7:00/mi
21:46 split
Half· 13.11 mi
1:29:18
Rank: #4824 (-100)
20K → Half
7:04/mi
4:49 split
25K· 15.53 mi
1:46:38
Rank: #4864 (-40)
Half → 25K
7:09/mi
17:20 split
30K· 18.64 mi
2:10:10
Rank: #4902 (-38)
25K → 30K
7:34/mi
23:32 split
20M
2:21:12
Rank: #5013 (-111)
30K → 20M
8:07/mi
11:02 split
21M
2:30:07
Rank: #5115 (-102)
20M → 21M
8:55/mi
8:55 split
35K· 21.75 mi
2:36:10
Rank: #5163 (-48)
21M → 35K
8:05/mi
6:03 split
23M
2:47:00
Rank: #5286 (-123)
35K → 23M
8:39/mi
10:50 split
24M
2:55:10
Rank: #5310 (-24)
23M → 24M
8:10/mi
8:10 split
40K· 24.85 mi
3:02:05
Rank: #5270 (+40)
24M → 40K
8:05/mi
6:55 split
25.2M
3:05:17
Rank: #5271 (-1)
40K → 25.2M
9:17/mi
3:12 split
Finish· 26.22 mi
3:13:14
Rank: #5284 (-13)
25.2M → Finish
7:48/mi
7:57 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:29:18
Pace6:49 /mi
2nd Half
Distance13.11 mi
Time1:43:56
Pace7:56 /mi
📊Positive Split: 16.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:25:2220:386:3820:38
6:38
-
10K
6.21 mi10:46:1441:306:4120:52
6:43
+0:05
15K
9.32 mi11:07:271:02:436:4421:13
6:50
+0:07
20K
12.43 mi11:29:131:24:296:4821:46
7:00
+0:10
Half
13.11 mi11:34:021:29:186:494:49
7:04
+0:04
25K
15.53 mi11:51:221:46:386:5217:20
7:09
+0:05
30K
18.64 mi12:14:542:10:106:5923:32
7:34
+0:25
20M
20.00 mi12:25:562:21:127:0411:02
8:07
+0:33
21M
21.00 mi12:34:512:30:077:098:55
8:55
+0:48
35K
21.75 mi12:40:542:36:107:116:03
8:05
-0:50
23M
23.00 mi12:51:442:47:007:1610:50
8:39
+0:34
24M
24.00 mi12:59:542:55:107:188:10
8:10
-0:29
40K
24.85 mi13:06:493:02:057:206:55
8:05
-0:05
25.2M
25.20 mi13:10:013:05:177:213:12
9:17
+1:12
Finish
26.22 mi13:17:583:13:147:237:57
7:48
-1:29

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

6:38 /mi

Average Pace

7:23 /mi

Slowest Pace

9:17 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:46:38

55% of race

Time at Steady Pace

1:03:39

33% of race

Time at Slower Pace

22:57

12% of race

Average Pace: 7:22 /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 mi10:25:2220:386:3820:38
6:38
#4340
10K
6.21 mi10:46:1441:306:4120:52
6:43
#4383
15K
9.32 mi11:07:271:02:436:4421:13
6:50
#4555
20K
12.43 mi11:29:131:24:296:4821:46
7:00
#4724
Half
13.11 mi11:34:021:29:186:494:49
7:04
#4824
25K
15.53 mi11:51:221:46:386:5217:20
7:09
#4864
30K
18.64 mi12:14:542:10:106:5923:32
7:34
#4902
20M
20.00 mi12:25:562:21:127:0411:02
8:07
#5013
21M
21.00 mi12:34:512:30:077:098:55
8:55
#5115
35K
21.75 mi12:40:542:36:107:116:03
8:05
#5163
23M
23.00 mi12:51:442:47:007:1610:50
8:39
#5286
24M
24.00 mi12:59:542:55:107:188:10
8:10
#5310
40K
24.85 mi13:06:493:02:057:206:55
8:05
#5270
25.2M
25.20 mi13:10:013:05:177:213:12
9:17
#5271
Finish
26.22 mi13:17:583:13:147:237:57
7:48
#5284
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi4340408040805002(Top 20%)4606(Top 32%)4606(Top 208%)
10K6.21 mi3.10 mi4383-434117-374117-374463(Top 17%)4171(Top 29%)4171(Top 188%)
15K9.32 mi3.11 mi4555-1724249-1324249-1325002(Top 20%)4606(Top 32%)4606(Top 208%)
20K12.43 mi3.11 mi4724-1694387-1384387-1385279(Top 21%)4794(Top 33%)4794(Top 216%)
Half13.11 mi0.68 mi4824-1004472-854472-856078(Top 24%)5368(Top 37%)5368(Top 242%)
25K15.53 mi2.42 mi4864-404488-164488-165050(Top 20%)4512(Top 31%)4512(Top 203%)
30K18.64 mi3.11 mi4902-384484+44484+45474(Top 21%)4659(Top 32%)4659(Top 210%)
20M20.00 mi1.36 mi5013-1114558-744558-747382(Top 29%)5653(Top 39%)5653(Top 255%)
21M21.00 mi1.00 mi5115-1024597-394597-398146(Top 32%)5862(Top 40%)5862(Top 264%)
35K21.75 mi0.75 mi5163-484616-194616-198264(Top 32%)5873(Top 40%)5873(Top 265%)
23M23.00 mi1.25 mi5286-1234665-494665-499260(Top 36%)6215(Top 43%)6215(Top 280%)
24M24.00 mi1.00 mi5310-244658+74658+77526(Top 29%)5247(Top 36%)5247(Top 237%)
40K24.85 mi0.85 mi5270+404601+574601+576206(Top 24%)4436(Top 30%)4436(Top 200%)
25.2M25.20 mi0.35 mi5271-14586+154586+157750(Top 30%)5170(Top 35%)5170(Top 233%)
Finish26.22 mi1.02 mi5284-134568+184568+187334(Top 29%)5046(Top 35%)5046(Top 228%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 20%
×21story building
+97ft-345ft

Overall

5002

Males

4606

M45-49

4606

5K→10K

3.1 - 6.2 mi

Top 17%
×5story building
+79ft-138ft

Overall

4463

Males

4171

M45-49

4171

10K→15K

6.2 - 9.3 mi

Top 20%
×3story building
+67ft-78ft

Overall

5002

Males

4606

M45-49

4606

15K→20K

9.3 - 12.4 mi

Top 21%
×5story building
+106ft-86ft

Overall

5279

Males

4794

M45-49

4794

20K→Half

12.4 - 13.1 mi

Top 24%
×2story building
+19ft-37ft

Overall

6078

Males

5368

M45-49

5368

Half→25K

13.1 - 15.5 mi

Top 20%
×4story building
+66ft-88ft

Overall

5050

Males

4512

M45-49

4512

25K→30K

15.5 - 18.6 mi

Top 21%
×9story building
+181ft-148ft

Overall

5474

Males

4659

M45-49

4659

30K→20M

18.6 - 20.0 mi

Top 29%
×5story building
+64ft-50ft

Overall

7382

Males

5653

M45-49

5653

20M→21M

20.0 - 21.0 mi

Top 32%
×8story building
+106ft-24ft

Overall

8146

Males

5862

M45-49

5862

21M→35K

21.0 - 21.8 mi

Top 32%
×7story building
+17ft-86ft

Overall

8264

Males

5873

M45-49

5873

35K→23M

21.8 - 23.0 mi

Top 36%
×5story building
+23ft-63ft

Overall

9260

Males

6215

M45-49

6215

23M→24M

23.0 - 24.0 mi

Top 29%
×6story building
+12ft-82ft

Overall

7526

Males

5247

M45-49

5247

24M→40K

24.0 - 24.9 mi

Top 24%
×1story
+6ft-20ft

Overall

6206

Males

4436

M45-49

4436

40K→25.2M

24.9 - 25.2 mi

Top 30%
×1story
+13ft-16ft

Overall

7750

Males

5170

M45-49

5170

25.2M→Finish

25.2 - 26.2 mi

Top 29%
×2story building
+22ft-21ft

Overall

7334

Males

5046

M45-49

5046

Passing Analysis

Category:
Athletes Passed
1189
Passed By
2133
Net Change
-944
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4340
5K → 10K168211-43#4340#4383
10K → 15K78250-172#4383#4555
15K → 20K104273-169#4555#4724
20K → Half7107-100#4724#4824
Half → 25K161201-40#4824#4864
25K → 30K168206-38#4864#4902
30K → 20M61172-111#4902#5013
20M → 21M59161-102#5013#5115
21M → 35K4694-48#5115#5163
35K → 23M73196-123#5163#5286
23M → 24M6488-24#5286#5310
24M → 40K9151+40#5310#5270
40K → 25.2M4041-1#5270#5271
25.2M → Finish6982-13#5271#5284
TOTALS11892133-944
📊

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