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BOSTON MARATHON 2025

Chun-Chu Lin

Bib: 21830•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M60-64)
#0 / 1259
Top 40%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:18
Rank: #14999
Start → 5K
24:18 | 7:49/mi
10K· 6.21 mi
48:40
Rank: #15069 (-70)
5K → 10K
24:22 | 7:51/mi
15K· 9.32 mi
1:13:42
Rank: #15552 (-483)
10K → 15K
25:02 | 8:03/mi
20K· 12.43 mi
1:39:58
Rank: #16272 (-720)
15K → 20K
26:16 | 8:27/mi
Half· 13.11 mi
1:45:39
Rank: #16378 (-106)
20K → Half
5:41 | 8:20/mi
25K· 15.53 mi
2:06:55
Rank: #16773 (-395)
Half → 25K
21:16 | 8:46/mi
30K· 18.64 mi
2:35:32
Rank: #17107 (-334)
25K → 30K
28:37 | 9:13/mi
20M
2:48:27
Rank: #17285 (-178)
30K → 20M
12:55 | 9:30/mi
21M
2:58:27
Rank: #17347 (-62)
20M → 21M
10:00 | 10:00/mi
35K· 21.75 mi
3:05:08
Rank: #17351 (-4)
21M → 35K
6:41 | 8:56/mi
23M
3:16:32
Rank: #17312 (+39)
35K → 23M
11:24 | 9:06/mi
24M
3:25:26
Rank: #17281 (+31)
23M → 24M
8:54 | 8:54/mi
40K· 24.85 mi
3:33:14
Rank: #17268 (+13)
24M → 40K
7:48 | 9:07/mi
25.2M
3:36:43
Rank: #17272 (-4)
40K → 25.2M
3:29 | 10:06/mi
Finish· 26.22 mi
3:45:57
Rank: #17362 (-90)
25.2M → Finish
9:14 | 9:04/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:45:39
Pace8:04 /mi
2nd Half
Distance13.11 mi
Time2:00:18
Pace9:11 /mi
📊Positive Split: 13.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:18:2324:187:4924:18
7:49
-
10K
6.21 mi11:42:4548:407:5024:22
7:51
+0:02
15K
9.32 mi12:07:471:13:427:5425:02
8:03
+0:12
20K
12.43 mi12:34:031:39:588:0326:16
8:27
+0:24
Half
13.11 mi12:39:441:45:398:045:41
8:20
-0:07
25K
15.53 mi13:01:002:06:558:1021:16
8:46
+0:26
30K
18.64 mi13:29:372:35:328:2128:37
9:13
+0:27
20M
20.00 mi13:42:322:48:278:2512:55
9:30
+0:17
21M
21.00 mi13:52:322:58:278:3010:00
10:00
+0:30
35K
21.75 mi13:59:133:05:088:316:41
8:56
-1:04
23M
23.00 mi14:10:373:16:328:3311:24
9:06
+0:10
24M
24.00 mi14:19:313:25:268:348:54
8:54
-0:12
40K
24.85 mi14:27:193:33:148:357:48
9:07
+0:13
25.2M
25.20 mi14:30:483:36:438:363:29
10:06
+0:59
Finish
26.22 mi14:40:023:45:578:379:14
9:04
-1:02

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

7:49 /mi

Average Pace

8:37 /mi

Slowest Pace

10:06 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:45:39

47% of race

Time at Steady Pace

1:33:54

42% of race

Time at Slower Pace

26:24

12% of race

Average Pace: 8:37 /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 mi11:18:2324:187:4924:18
7:49
#14999
10K
6.21 mi11:42:4548:407:5024:22
7:51
#15069
15K
9.32 mi12:07:471:13:427:5425:02
8:03
#15552
20K
12.43 mi12:34:031:39:588:0326:16
8:27
#16272
Half
13.11 mi12:39:441:45:398:045:41
8:20
#16378
25K
15.53 mi13:01:002:06:558:1021:16
8:46
#16773
30K
18.64 mi13:29:372:35:328:2128:37
9:13
#17107
20M
20.00 mi13:42:322:48:278:2512:55
9:30
#17285
21M
21.00 mi13:52:322:58:278:3010:00
10:00
#17347
35K
21.75 mi13:59:133:05:088:316:41
8:56
#17351
23M
23.00 mi14:10:373:16:328:3311:24
9:06
#17312
24M
24.00 mi14:19:313:25:268:348:54
8:54
#17281
40K
24.85 mi14:27:193:33:148:357:48
9:07
#17268
25.2M
25.20 mi14:30:483:36:438:363:29
10:06
#17272
Finish
26.22 mi14:40:023:45:578:379:14
9:04
#17362
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi14999104301043016457(Top 58%)11000(Top 68%)11000(Top 874%)
10K6.21 mi3.10 mi15069-7010442-1210442-1215195(Top 53%)10494(Top 65%)10494(Top 834%)
15K9.32 mi3.11 mi15552-48310633-19110633-19116457(Top 58%)11000(Top 68%)11000(Top 874%)
20K12.43 mi3.11 mi16272-72010915-28210915-28217902(Top 63%)11562(Top 72%)11562(Top 918%)
Half13.11 mi0.68 mi16378-10610963-4810963-4818060(Top 64%)11650(Top 72%)11650(Top 925%)
25K15.53 mi2.42 mi16773-39511093-13011093-13018773(Top 66%)11865(Top 74%)11865(Top 942%)
30K18.64 mi3.11 mi17107-33411179-8611179-8618677(Top 66%)11688(Top 73%)11688(Top 928%)
20M20.00 mi1.36 mi17285-17811220-4111220-4119182(Top 68%)11767(Top 73%)11767(Top 935%)
21M21.00 mi1.00 mi17347-6211212+811212+818276(Top 64%)11292(Top 70%)11292(Top 897%)
35K21.75 mi0.75 mi17351-411191+2111191+2117898(Top 63%)11001(Top 68%)11001(Top 874%)
23M23.00 mi1.25 mi17312+3911144+4711144+4716829(Top 59%)10441(Top 65%)10441(Top 829%)
24M24.00 mi1.00 mi17281+3111108+3611108+3616839(Top 59%)10394(Top 65%)10394(Top 826%)
40K24.85 mi0.85 mi17268+1311081+2711081+2716956(Top 60%)10363(Top 64%)10363(Top 823%)
25.2M25.20 mi0.35 mi17272-411071+1011071+1017425(Top 61%)10565(Top 66%)10565(Top 839%)
Finish26.22 mi1.02 mi17362-9011085-1411085-1419313(Top 68%)11490(Top 71%)11490(Top 913%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 58%
×21stories
+97ft-345ft

Overall

16457

Males

11000

M60-64

11000

5K→10K

3.1 - 6.2 mi

Top 53%
×5stories
+79ft-138ft

Overall

15195

Males

10494

M60-64

10494

10K→15K

6.2 - 9.3 mi

Top 58%
×3stories
+67ft-78ft

Overall

16457

Males

11000

M60-64

11000

15K→20K

9.3 - 12.4 mi

Top 63%
×5stories
+106ft-86ft

Overall

17902

Males

11562

M60-64

11562

20K→Half

12.4 - 13.1 mi

Top 64%
×2stories
+19ft-37ft

Overall

18060

Males

11650

M60-64

11650

Half→25K

13.1 - 15.5 mi

Top 66%
×4stories
+66ft-88ft

Overall

18773

Males

11865

M60-64

11865

25K→30K

15.5 - 18.6 mi

Top 66%
×9stories
+181ft-148ft

Overall

18677

Males

11688

M60-64

11688

30K→20M

18.6 - 20.0 mi

Top 68%
×5stories
+64ft-50ft

Overall

19182

Males

11767

M60-64

11767

20M→21M

20.0 - 21.0 mi

Top 64%
×8stories
+106ft-24ft

Overall

18276

Males

11292

M60-64

11292

21M→35K

21.0 - 21.8 mi

Top 63%
×7stories
+17ft-86ft

Overall

17898

Males

11001

M60-64

11001

35K→23M

21.8 - 23.0 mi

Top 59%
×5stories
+23ft-63ft

Overall

16829

Males

10441

M60-64

10441

23M→24M

23.0 - 24.0 mi

Top 59%
×6stories
+12ft-82ft

Overall

16839

Males

10394

M60-64

10394

24M→40K

24.0 - 24.9 mi

Top 60%
×1story
+6ft-20ft

Overall

16956

Males

10363

M60-64

10363

40K→25.2M

24.9 - 25.2 mi

Top 61%
×1story
+13ft-16ft

Overall

17425

Males

10565

M60-64

10565

25.2M→Finish

25.2 - 26.2 mi

Top 68%
×2stories
+22ft-21ft

Overall

19313

Males

11490

M60-64

11490

Passing Analysis

Category:
Athletes Passed
1204
Passed By
3567
Net Change
-2363
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14999
5K → 10K259329-70#14999#15069
10K → 15K87570-483#15069#15552
15K → 20K67787-720#15552#16272
20K → Half15121-106#16272#16378
Half → 25K66461-395#16378#16773
25K → 30K134468-334#16773#17107
30K → 20M58236-178#17107#17285
20M → 21M77139-62#17285#17347
21M → 35K6468-4#17347#17351
35K → 23M140101+39#17351#17312
23M → 24M8958+31#17312#17281
24M → 40K7158+13#17281#17268
40K → 25.2M3640-4#17268#17272
25.2M → Finish41131-90#17272#17362
TOTALS12043567-2363
📊

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