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BOSTON MARATHON 2024

Tsan Chung Chen

Bib: 9911•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Top 46%
Gender (Male)
#0 / 14578
Masters (Masters Men)
#0 / 9729
Top 48%
Division (M45-49)
#0 / 2218
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
6:56/mi
21:34
↑ 97↓ 3451.5%
10K· 6.21 mi
7:06/mi
43:37
↑ 79↓ 1380.4%
15K· 9.32 mi
7:17/mi
1:06:16
↑ 67↓ 78
20K· 12.43 mi
7:35/mi
1:29:51
↑ 106↓ 860.1%
Half· 13.11 mi
8:45/mi
1:35:49
↑ 19↓ 370.5%
25K· 15.53 mi
8:20/mi
1:56:01
↑ 66↓ 880.2%
30K· 18.64 mi
9:32/mi
2:25:37
↑ 181↓ 1480.2%
20M
10:06/mi
2:39:20
↑ 64↓ 500.2%
21M
10:43/mi
2:50:03
↑ 106↓ 241.6%
35K· 21.75 mi
9:45/mi
2:57:21
↑ 17↓ 861.7%
23M
10:08/mi
3:10:02
↑ 23↓ 630.6%
24M
8:51/mi
3:18:53
↓ 821.3%
40K· 24.85 mi
9:05/mi
3:26:39
↓ 200.3%
25.2M
11:04/mi
3:30:28
↑ 13↓ 160.2%
Finish· 26.22 mi
8:04/mi
3:38:41
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:35:49
Pace7:19 /mi
2nd Half
Distance13.11 mi
Time2:02:52
Pace9:22 /mi
📊Positive Split: 28.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:47:2821:346:5621:34
6:56
-
10K
6.21 mi11:09:3143:377:0122:03
7:06
+0:10
15K
9.32 mi11:32:101:06:167:0722:39
7:17
+0:11
20K
12.43 mi11:55:451:29:517:1423:35
7:35
+0:18
Half
13.11 mi12:01:431:35:497:195:58
8:45
+1:10
25K
15.53 mi12:21:551:56:017:2820:12
8:20
-0:25
30K
18.64 mi12:51:312:25:377:4929:36
9:32
+1:12
20M
20.00 mi13:05:142:39:207:5813:43
10:06
+0:34
21M
21.00 mi13:15:572:50:038:0610:43
10:43
+0:37
35K
21.75 mi13:23:152:57:218:097:18
9:45
-0:58
23M
23.00 mi13:35:563:10:028:1612:41
10:08
+0:23
24M
24.00 mi13:44:473:18:538:178:51
8:51
-1:17
40K
24.85 mi13:52:333:26:398:197:46
9:05
+0:14
25.2M
25.20 mi13:56:223:30:288:213:49
11:04
+1:59
Finish
26.22 mi14:04:353:38:418:218:13
8:04
-3:00

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

6:56 /mi

Average Pace

8:21 /mi

Slowest Pace

11:04 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:38:04

45% of race

Time at Steady Pace

42:47

20% of race

Time at Slower Pace

1:17:50

36% of race

Average Pace: 8:20 /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 mi10:47:2821:346:5621:34
6:56
#6679
10K
6.21 mi11:09:3143:377:0122:03
7:06
#6967
15K
9.32 mi11:32:101:06:167:0722:39
7:17
#7269
20K
12.43 mi11:55:451:29:517:1423:35
7:35
#7633
Half
13.11 mi12:01:431:35:497:195:58
8:45
#8158
25K
15.53 mi12:21:551:56:017:2820:12
8:20
#8849
30K
18.64 mi12:51:312:25:377:4929:36
9:32
#10323
20M
20.00 mi13:05:142:39:207:5813:43
10:06
#10942
21M
21.00 mi13:15:572:50:038:0610:43
10:43
#11318
35K
21.75 mi13:23:152:57:218:097:18
9:45
#11535
23M
23.00 mi13:35:563:10:028:1612:41
10:08
#11892
24M
24.00 mi13:44:473:18:538:178:51
8:51
#11825
40K
24.85 mi13:52:333:26:398:197:46
9:05
#11763
25.2M
25.20 mi13:56:223:30:288:213:49
11:04
#11826
Finish
26.22 mi14:04:353:38:418:218:13
8:04
#11665
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi6679594059408105(Top 32%)6781(Top 47%)6781(Top 306%)
10K6.21 mi3.10 mi6967-2886122-1826122-1827270(Top 28%)6296(Top 43%)6296(Top 284%)
15K9.32 mi3.11 mi7269-3026312-1906312-1908105(Top 32%)6781(Top 47%)6781(Top 306%)
20K12.43 mi3.11 mi7633-3646514-2026514-2029012(Top 35%)7181(Top 49%)7181(Top 324%)
Half13.11 mi0.68 mi8158-5256833-3196833-31917013(Top 67%)10737(Top 74%)10737(Top 484%)
25K15.53 mi2.42 mi8849-6917186-3537186-35312147(Top 48%)8522(Top 58%)8522(Top 384%)
30K18.64 mi3.11 mi10323-14747809-6237809-62315551(Top 61%)9802(Top 67%)9802(Top 442%)
20M20.00 mi1.36 mi10942-6198067-2588067-25816777(Top 66%)10141(Top 70%)10141(Top 457%)
21M21.00 mi1.00 mi11318-3768192-1258192-12515494(Top 61%)9394(Top 64%)9394(Top 424%)
35K21.75 mi0.75 mi11535-2178259-678259-6716374(Top 64%)9785(Top 67%)9785(Top 441%)
23M23.00 mi1.25 mi11892-3578353-948353-9415878(Top 62%)9505(Top 65%)9505(Top 429%)
24M24.00 mi1.00 mi11825+678281+728281+7211353(Top 44%)7242(Top 50%)7242(Top 327%)
40K24.85 mi0.85 mi11763+628197+848197+8411243(Top 44%)7046(Top 48%)7046(Top 318%)
25.2M25.20 mi0.35 mi11826-638208-118208-1114681(Top 57%)8758(Top 60%)8758(Top 395%)
Finish26.22 mi1.02 mi11665+1618092+1168092+1168913(Top 35%)5885(Top 40%)5885(Top 265%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 32%
×21story building
+97ft-345ft

Overall

8105

Males

6781

M45-49

6781

5K→10K

3.1 - 6.2 mi

Top 28%
×5story building
+79ft-138ft

Overall

7270

Males

6296

M45-49

6296

10K→15K

6.2 - 9.3 mi

Top 32%
×3story building
+67ft-78ft

Overall

8105

Males

6781

M45-49

6781

15K→20K

9.3 - 12.4 mi

Top 35%
×5story building
+106ft-86ft

Overall

9012

Males

7181

M45-49

7181

20K→Half

12.4 - 13.1 mi

Top 67%
×2story building
+19ft-37ft

Overall

17013

Males

10737

M45-49

10737

Half→25K

13.1 - 15.5 mi

Top 48%
×4story building
+66ft-88ft

Overall

12147

Males

8522

M45-49

8522

25K→30K

15.5 - 18.6 mi

Top 61%
×9story building
+181ft-148ft

Overall

15551

Males

9802

M45-49

9802

30K→20M

18.6 - 20.0 mi

Top 66%
×5story building
+64ft-50ft

Overall

16777

Males

10141

M45-49

10141

20M→21M

20.0 - 21.0 mi

Top 61%
×8story building
+106ft-24ft

Overall

15494

Males

9394

M45-49

9394

21M→35K

21.0 - 21.8 mi

Top 64%
×7story building
+17ft-86ft

Overall

16374

Males

9785

M45-49

9785

35K→23M

21.8 - 23.0 mi

Top 62%
×5story building
+23ft-63ft

Overall

15878

Males

9505

M45-49

9505

23M→24M

23.0 - 24.0 mi

Top 44%
×6story building
+12ft-82ft

Overall

11353

Males

7242

M45-49

7242

24M→40K

24.0 - 24.9 mi

Top 44%
×1story
+6ft-20ft

Overall

11243

Males

7046

M45-49

7046

40K→25.2M

24.9 - 25.2 mi

Top 57%
×1story
+13ft-16ft

Overall

14681

Males

8758

M45-49

8758

25.2M→Finish

25.2 - 26.2 mi

Top 35%
×2story building
+22ft-21ft

Overall

8913

Males

5885

M45-49

5885

Passing Analysis

Category:
Athletes Passed
1024
Passed By
6007
Net Change
-4986
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6679
5K → 10K108396-288#6679#6967
10K → 15K68370-302#6967#7269
15K → 20K93457-364#7269#7633
20K → Half0525-525#7633#8158
Half → 25K71762-691#8158#8849
25K → 30K401512-1474#8849#10323
30K → 20M33651-619#10323#10942
20M → 21M59435-376#10942#11318
21M → 35K39256-217#11318#11535
35K → 23M71428-357#11535#11892
23M → 24M12356+67#11892#11825
24M → 40K12462+62#11825#11763
40K → 25.2M2386-63#11763#11826
25.2M → Finish17211+161#11826#11665
TOTALS10246007-4986
📊

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