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BOSTON MARATHON 2025

Yong Chuang Chen

Bib: 3891•M

BC

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 32%
Gender (Male)
#0 / 16105
Top 45%
Masters (Masters Men)
#0 / 10463
Top 34%
Division (M50-54)
#0 / 1996
Top 33%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:08
Rank: #8843
Start → 5K
22:08 | 7:07/mi
10K· 6.21 mi
44:17
Rank: #8843
5K → 10K
22:09 | 7:08/mi
15K· 9.32 mi
1:06:47
Rank: #9024 (-181)
10K → 15K
22:30 | 7:15/mi
20K· 12.43 mi
1:29:31
Rank: #9016 (+8)
15K → 20K
22:44 | 7:19/mi
Half· 13.11 mi
1:34:23
Rank: #8978 (+38)
20K → Half
4:52 | 7:08/mi
25K· 15.53 mi
1:52:44
Rank: #9196 (-218)
Half → 25K
18:21 | 7:34/mi
30K· 18.64 mi
2:17:11
Rank: #9365 (-169)
25K → 30K
24:27 | 7:52/mi
20M
2:28:05
Rank: #9410 (-45)
30K → 20M
10:54 | 8:01/mi
21M
2:36:28
Rank: #9409 (+1)
20M → 21M
8:23 | 8:23/mi
35K· 21.75 mi
2:41:58
Rank: #9312 (+97)
21M → 35K
5:30 | 7:21/mi
23M
2:51:56
Rank: #9282 (+30)
35K → 23M
9:58 | 7:58/mi
24M
2:59:36
Rank: #9256 (+26)
23M → 24M
7:40 | 7:40/mi
40K· 24.85 mi
3:06:18
Rank: #9196 (+60)
24M → 40K
6:42 | 7:50/mi
25.2M
3:09:17
Rank: #9190 (+6)
40K → 25.2M
2:59 | 8:39/mi
Finish· 26.22 mi
3:16:58
Rank: #9197 (-7)
25.2M → Finish
7:41 | 7:32/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:34:23
Pace7:12 /mi
2nd Half
Distance13.11 mi
Time1:42:35
Pace7:50 /mi
📊Positive Split: 8.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:25:5522:087:0722:08
7:07
-
10K
6.21 mi10:48:0444:177:0822:09
7:08
+0:01
15K
9.32 mi11:10:341:06:477:1022:30
7:15
+0:07
20K
12.43 mi11:33:181:29:317:1222:44
7:19
+0:04
Half
13.11 mi11:38:101:34:237:124:52
7:08
-0:11
25K
15.53 mi11:56:311:52:447:1518:21
7:34
+0:26
30K
18.64 mi12:20:582:17:117:2224:27
7:52
+0:18
20M
20.00 mi12:31:522:28:057:2410:54
8:01
+0:09
21M
21.00 mi12:40:152:36:287:278:23
8:23
+0:22
35K
21.75 mi12:45:452:41:587:275:30
7:21
-1:02
23M
23.00 mi12:55:432:51:567:299:58
7:58
+0:37
24M
24.00 mi13:03:232:59:367:297:40
7:40
-0:18
40K
24.85 mi13:10:053:06:187:306:42
7:50
+0:10
25.2M
25.20 mi13:13:043:09:177:312:59
8:39
+0:49
Finish
26.22 mi13:20:453:16:587:317:41
7:32
-1:07

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

7:07 /mi

Average Pace

7:31 /mi

Slowest Pace

8:39 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:34:23

48% of race

Time at Steady Pace

39:12

20% of race

Time at Slower Pace

1:03:23

32% of race

Average Pace: 7:31 /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 mi10:25:5522:087:0722:08
7:07
#8843
10K
6.21 mi10:48:0444:177:0822:09
7:08
#8843
15K
9.32 mi11:10:341:06:477:1022:30
7:15
#9024
20K
12.43 mi11:33:181:29:317:1222:44
7:19
#9016
Half
13.11 mi11:38:101:34:237:124:52
7:08
#8978
25K
15.53 mi11:56:311:52:447:1518:21
7:34
#9196
30K
18.64 mi12:20:582:17:117:2224:27
7:52
#9365
20M
20.00 mi12:31:522:28:057:2410:54
8:01
#9410
21M
21.00 mi12:40:152:36:287:278:23
8:23
#9409
35K
21.75 mi12:45:452:41:587:275:30
7:21
#9312
23M
23.00 mi12:55:432:51:567:299:58
7:58
#9282
24M
24.00 mi13:03:232:59:367:297:40
7:40
#9256
40K
24.85 mi13:10:053:06:187:306:42
7:50
#9196
25.2M
25.20 mi13:13:043:09:177:312:59
8:39
#9190
Finish
26.22 mi13:20:453:16:587:317:41
7:32
#9197
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi8843752075209473(Top 33%)7807(Top 48%)7807(Top 391%)
10K6.21 mi3.10 mi88437503+177503+178911(Top 31%)7549(Top 47%)7549(Top 378%)
15K9.32 mi3.11 mi9024-1817596-937596-939473(Top 33%)7807(Top 48%)7807(Top 391%)
20K12.43 mi3.11 mi9016+87574+227574+229175(Top 32%)7547(Top 47%)7547(Top 378%)
Half13.11 mi0.68 mi8978+387551+237551+238533(Top 30%)7216(Top 45%)7216(Top 362%)
25K15.53 mi2.42 mi9196-2187631-807631-8010474(Top 37%)8126(Top 50%)8126(Top 407%)
30K18.64 mi3.11 mi9365-1697675-447675-4410408(Top 37%)7885(Top 49%)7885(Top 395%)
20M20.00 mi1.36 mi9410-457656+197656+1910558(Top 37%)7811(Top 49%)7811(Top 391%)
21M21.00 mi1.00 mi9409+17625+317625+319724(Top 34%)7216(Top 45%)7216(Top 362%)
35K21.75 mi0.75 mi9312+977552+737552+737562(Top 27%)6039(Top 37%)6039(Top 303%)
23M23.00 mi1.25 mi9282+307496+567496+569716(Top 34%)7084(Top 44%)7084(Top 355%)
24M24.00 mi1.00 mi9256+267452+447452+448883(Top 31%)6590(Top 41%)6590(Top 330%)
40K24.85 mi0.85 mi9196+607381+717381+718998(Top 32%)6522(Top 40%)6522(Top 327%)
25.2M25.20 mi0.35 mi9190+67356+257356+259663(Top 34%)6782(Top 42%)6782(Top 340%)
Finish26.22 mi1.02 mi9197-77320+367320+369456(Top 33%)6684(Top 42%)6684(Top 335%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 33%
×21stories
+97ft-345ft

Overall

9473

Males

7807

M50-54

7807

5K→10K

3.1 - 6.2 mi

Top 31%
×5stories
+79ft-138ft

Overall

8911

Males

7549

M50-54

7549

10K→15K

6.2 - 9.3 mi

Top 33%
×3stories
+67ft-78ft

Overall

9473

Males

7807

M50-54

7807

15K→20K

9.3 - 12.4 mi

Top 32%
×5stories
+106ft-86ft

Overall

9175

Males

7547

M50-54

7547

20K→Half

12.4 - 13.1 mi

Top 30%
×2stories
+19ft-37ft

Overall

8533

Males

7216

M50-54

7216

Half→25K

13.1 - 15.5 mi

Top 37%
×4stories
+66ft-88ft

Overall

10474

Males

8126

M50-54

8126

25K→30K

15.5 - 18.6 mi

Top 37%
×9stories
+181ft-148ft

Overall

10408

Males

7885

M50-54

7885

30K→20M

18.6 - 20.0 mi

Top 37%
×5stories
+64ft-50ft

Overall

10558

Males

7811

M50-54

7811

20M→21M

20.0 - 21.0 mi

Top 34%
×8stories
+106ft-24ft

Overall

9724

Males

7216

M50-54

7216

21M→35K

21.0 - 21.8 mi

Top 27%
×7stories
+17ft-86ft

Overall

7562

Males

6039

M50-54

6039

35K→23M

21.8 - 23.0 mi

Top 34%
×5stories
+23ft-63ft

Overall

9716

Males

7084

M50-54

7084

23M→24M

23.0 - 24.0 mi

Top 31%
×6stories
+12ft-82ft

Overall

8883

Males

6590

M50-54

6590

24M→40K

24.0 - 24.9 mi

Top 32%
×1story
+6ft-20ft

Overall

8998

Males

6522

M50-54

6522

40K→25.2M

24.9 - 25.2 mi

Top 34%
×1story
+13ft-16ft

Overall

9663

Males

6782

M50-54

6782

25.2M→Finish

25.2 - 26.2 mi

Top 33%
×2stories
+22ft-21ft

Overall

9456

Males

6684

M50-54

6684

Passing Analysis

Category:
Athletes Passed
1543
Passed By
1897
Net Change
-354
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8843
5K → 10K2152150#8843#8843
10K → 15K104285-181#8843#9024
15K → 20K167159+8#9024#9016
20K → Half5719+38#9016#8978
Half → 25K96314-218#8978#9196
25K → 30K168337-169#9196#9365
30K → 20M93138-45#9365#9410
20M → 21M8887+1#9410#9409
21M → 35K11619+97#9409#9312
35K → 23M12292+30#9312#9282
23M → 24M9670+26#9282#9256
24M → 40K10343+60#9256#9196
40K → 25.2M4236+6#9196#9190
25.2M → Finish7683-7#9190#9197
TOTALS15431897-354
📊

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