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BOSTON MARATHON 2025

Chen-Min Chen

Bib: 6258•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 22%
Gender (Male)
#0 / 16105
Top 34%
Masters (Masters Men)
#0 / 10463
Top 21%
Division (M45-49)
#0 / 2386
Top 28%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:08
Rank: #3691
Start → 5K
20:08 | 6:29/mi
10K· 6.21 mi
40:40
Rank: #4106 (-415)
5K → 10K
20:32 | 6:37/mi
15K· 9.32 mi
1:01:14
Rank: #4172 (-66)
10K → 15K
20:34 | 6:37/mi
20K· 12.43 mi
1:23:07
Rank: #4890 (-718)
15K → 20K
21:53 | 7:03/mi
Half· 13.11 mi
1:27:43
Rank: #4922 (-32)
20K → Half
4:36 | 6:45/mi
25K· 15.53 mi
1:44:58
Rank: #5336 (-414)
Half → 25K
17:15 | 7:07/mi
30K· 18.64 mi
2:08:23
Rank: #5870 (-534)
25K → 30K
23:25 | 7:32/mi
20M
2:18:42
Rank: #5976 (-106)
30K → 20M
10:19 | 7:36/mi
21M
2:26:59
Rank: #6088 (-112)
20M → 21M
8:17 | 8:17/mi
35K· 21.75 mi
2:32:26
Rank: #6086 (+2)
21M → 35K
5:27 | 7:17/mi
23M
2:42:05
Rank: #6096 (-10)
35K → 23M
9:39 | 7:42/mi
24M
2:49:40
Rank: #6125 (-29)
23M → 24M
7:35 | 7:35/mi
40K· 24.85 mi
2:56:28
Rank: #6190 (-65)
24M → 40K
6:48 | 7:57/mi
25.2M
2:59:33
Rank: #6248 (-58)
40K → 25.2M
3:05 | 8:56/mi
Finish· 26.22 mi
3:07:20
Rank: #6308 (-60)
25.2M → Finish
7:47 | 7:38/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:27:43
Pace6:41 /mi
2nd Half
Distance13.11 mi
Time1:39:37
Pace7:36 /mi
📊Positive Split: 13.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:24:1820:086:2920:08
6:29
-
10K
6.21 mi10:44:5040:406:3320:32
6:37
+0:08
15K
9.32 mi11:05:241:01:146:3420:34
6:37
0:00
20K
12.43 mi11:27:171:23:076:4121:53
7:03
+0:26
Half
13.11 mi11:31:531:27:436:414:36
6:45
-0:18
25K
15.53 mi11:49:081:44:586:4517:15
7:07
+0:22
30K
18.64 mi12:12:332:08:236:5323:25
7:32
+0:25
20M
20.00 mi12:22:522:18:426:5610:19
7:36
+0:04
21M
21.00 mi12:31:092:26:597:008:17
8:17
+0:41
35K
21.75 mi12:36:362:32:267:015:27
7:17
-1:00
23M
23.00 mi12:46:152:42:057:039:39
7:42
+0:25
24M
24.00 mi12:53:502:49:407:047:35
7:35
-0:07
40K
24.85 mi13:00:382:56:287:066:48
7:57
+0:22
25.2M
25.20 mi13:03:432:59:337:083:05
8:56
+0:59
Finish
26.22 mi13:11:303:07:207:097:47
7:38
-1:18

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

6:29 /mi

Average Pace

7:09 /mi

Slowest Pace

8:56 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:44:58

56% of race

Time at Steady Pace

1:04:12

34% of race

Time at Slower Pace

18:10

10% of race

Average Pace: 7:09 /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 mi10:24:1820:086:2920:08
6:29
#3691
10K
6.21 mi10:44:5040:406:3320:32
6:37
#4106
15K
9.32 mi11:05:241:01:146:3420:34
6:37
#4172
20K
12.43 mi11:27:171:23:076:4121:53
7:03
#4890
Half
13.11 mi11:31:531:27:436:414:36
6:45
#4922
25K
15.53 mi11:49:081:44:586:4517:15
7:07
#5336
30K
18.64 mi12:12:332:08:236:5323:25
7:32
#5870
20M
20.00 mi12:22:522:18:426:5610:19
7:36
#5976
21M
21.00 mi12:31:092:26:597:008:17
8:17
#6088
35K
21.75 mi12:36:362:32:267:015:27
7:17
#6086
23M
23.00 mi12:46:152:42:057:039:39
7:42
#6096
24M
24.00 mi12:53:502:49:407:047:35
7:35
#6125
40K
24.85 mi13:00:382:56:287:066:48
7:57
#6190
25.2M
25.20 mi13:03:432:59:337:083:05
8:56
#6248
Finish
26.22 mi13:11:303:07:207:097:47
7:38
#6308
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi3691349734974394(Top 15%)4124(Top 26%)4124(Top 173%)
10K6.21 mi3.10 mi4106-4153870-3733870-3734540(Top 16%)4254(Top 26%)4254(Top 178%)
15K9.32 mi3.11 mi4172-663929-593929-594394(Top 15%)4124(Top 26%)4124(Top 173%)
20K12.43 mi3.11 mi4890-7184558-6294558-6297137(Top 25%)6301(Top 39%)6301(Top 264%)
Half13.11 mi0.68 mi4922-324587-294587-295609(Top 20%)5129(Top 32%)5129(Top 215%)
25K15.53 mi2.42 mi5336-4144920-3334920-3337047(Top 25%)6149(Top 38%)6149(Top 258%)
30K18.64 mi3.11 mi5870-5345338-4185338-4187991(Top 28%)6577(Top 41%)6577(Top 276%)
20M20.00 mi1.36 mi5976-1065402-645402-647585(Top 27%)6187(Top 38%)6187(Top 259%)
21M21.00 mi1.00 mi6088-1125471-695471-699075(Top 32%)6843(Top 42%)6843(Top 287%)
35K21.75 mi0.75 mi6086+25464+75464+77087(Top 25%)5739(Top 36%)5739(Top 241%)
23M23.00 mi1.25 mi6096-105452+125452+127910(Top 28%)6104(Top 38%)6104(Top 256%)
24M24.00 mi1.00 mi6125-295460-85460-88252(Top 29%)6242(Top 39%)6242(Top 262%)
40K24.85 mi0.85 mi6190-655487-275487-279792(Top 34%)6927(Top 43%)6927(Top 290%)
25.2M25.20 mi0.35 mi6248-585516-295516-2911350(Top 40%)7610(Top 47%)7610(Top 319%)
Finish26.22 mi1.02 mi6308-605531-155531-1510175(Top 36%)7061(Top 44%)7061(Top 296%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 15%
×21stories
+97ft-345ft

Overall

4394

Males

4124

M45-49

4124

5K→10K

3.1 - 6.2 mi

Top 16%
×5stories
+79ft-138ft

Overall

4540

Males

4254

M45-49

4254

10K→15K

6.2 - 9.3 mi

Top 15%
×3stories
+67ft-78ft

Overall

4394

Males

4124

M45-49

4124

15K→20K

9.3 - 12.4 mi

Top 25%
×5stories
+106ft-86ft

Overall

7137

Males

6301

M45-49

6301

20K→Half

12.4 - 13.1 mi

Top 20%
×2stories
+19ft-37ft

Overall

5609

Males

5129

M45-49

5129

Half→25K

13.1 - 15.5 mi

Top 25%
×4stories
+66ft-88ft

Overall

7047

Males

6149

M45-49

6149

25K→30K

15.5 - 18.6 mi

Top 28%
×9stories
+181ft-148ft

Overall

7991

Males

6577

M45-49

6577

30K→20M

18.6 - 20.0 mi

Top 27%
×5stories
+64ft-50ft

Overall

7585

Males

6187

M45-49

6187

20M→21M

20.0 - 21.0 mi

Top 32%
×8stories
+106ft-24ft

Overall

9075

Males

6843

M45-49

6843

21M→35K

21.0 - 21.8 mi

Top 25%
×7stories
+17ft-86ft

Overall

7087

Males

5739

M45-49

5739

35K→23M

21.8 - 23.0 mi

Top 28%
×5stories
+23ft-63ft

Overall

7910

Males

6104

M45-49

6104

23M→24M

23.0 - 24.0 mi

Top 29%
×6stories
+12ft-82ft

Overall

8252

Males

6242

M45-49

6242

24M→40K

24.0 - 24.9 mi

Top 34%
×1story
+6ft-20ft

Overall

9792

Males

6927

M45-49

6927

40K→25.2M

24.9 - 25.2 mi

Top 40%
×1story
+13ft-16ft

Overall

11350

Males

7610

M45-49

7610

25.2M→Finish

25.2 - 26.2 mi

Top 36%
×2stories
+22ft-21ft

Overall

10175

Males

7061

M45-49

7061

Passing Analysis

Category:
Athletes Passed
582
Passed By
3199
Net Change
-2617
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3691
5K → 10K35450-415#3691#4106
10K → 15K68134-66#4106#4172
15K → 20K24742-718#4172#4890
20K → Half1345-32#4890#4922
Half → 25K35449-414#4922#5336
25K → 30K72606-534#5336#5870
30K → 20M45151-106#5870#5976
20M → 21M37149-112#5976#6088
21M → 35K3836+2#6088#6086
35K → 23M8090-10#6086#6096
23M → 24M4978-29#6096#6125
24M → 40K3095-65#6125#6190
40K → 25.2M1674-58#6190#6248
25.2M → Finish40100-60#6248#6308
TOTALS5823199-2617
📊

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