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BOSTON MARATHON 2025

Kevin Lin

Bib: 3489•M

CO

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 23%
Gender (Male)
#0 / 16105
Top 35%
Division (M18-39)
#0 / 5642
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:56
Rank: #5775
Start → 5K
20:56 | 6:44/mi
10K· 6.21 mi
42:04
Rank: #6014 (-239)
5K → 10K
21:08 | 6:48/mi
15K· 9.32 mi
1:04:05
Rank: #6868 (-854)
10K → 15K
22:01 | 7:05/mi
20K· 12.43 mi
1:25:28
Rank: #6645 (+223)
15K → 20K
21:23 | 6:53/mi
Half· 13.11 mi
1:30:03
Rank: #6581 (+64)
20K → Half
4:35 | 6:43/mi
25K· 15.53 mi
1:46:44
Rank: #6338 (+243)
Half → 25K
16:41 | 6:53/mi
30K· 18.64 mi
2:09:02
Rank: #6129 (+209)
25K → 30K
22:18 | 7:11/mi
20M
2:19:17
Rank: #6167 (-38)
30K → 20M
10:15 | 7:33/mi
21M
2:27:41
Rank: #6285 (-118)
20M → 21M
8:24 | 8:24/mi
35K· 21.75 mi
2:33:16
Rank: #6296 (-11)
21M → 35K
5:35 | 7:28/mi
23M
2:43:09
Rank: #6368 (-72)
35K → 23M
9:53 | 7:54/mi
24M
2:50:52
Rank: #6422 (-54)
23M → 24M
7:43 | 7:43/mi
40K· 24.85 mi
2:57:38
Rank: #6469 (-47)
24M → 40K
6:46 | 7:55/mi
25.2M
3:00:30
Rank: #6472 (-3)
40K → 25.2M
2:52 | 8:19/mi
Finish· 26.22 mi
3:07:52
Rank: #6448 (+24)
25.2M → Finish
7:22 | 7:14/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:30:03
Pace6:52 /mi
2nd Half
Distance13.11 mi
Time1:37:49
Pace7:28 /mi
📊Positive Split: 8.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:23:2520:566:4420:56
6:44
-
10K
6.21 mi10:44:3342:046:4621:08
6:48
+0:04
15K
9.32 mi11:06:341:04:056:5322:01
7:05
+0:17
20K
12.43 mi11:27:571:25:286:5321:23
6:53
-0:12
Half
13.11 mi11:32:321:30:036:524:35
6:43
-0:10
25K
15.53 mi11:49:131:46:446:5216:41
6:53
+0:10
30K
18.64 mi12:11:312:09:026:5522:18
7:11
+0:18
20M
20.00 mi12:21:462:19:176:5810:15
7:33
+0:22
21M
21.00 mi12:30:102:27:417:028:24
8:24
+0:51
35K
21.75 mi12:35:452:33:167:035:35
7:28
-0:56
23M
23.00 mi12:45:382:43:097:069:53
7:54
+0:26
24M
24.00 mi12:53:212:50:527:077:43
7:43
-0:11
40K
24.85 mi13:00:072:57:387:096:46
7:55
+0:12
25.2M
25.20 mi13:02:593:00:307:102:52
8:19
+0:24
Finish
26.22 mi13:10:213:07:527:107:22
7:14
-1:05

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

6:43 /mi

Average Pace

7:10 /mi

Slowest Pace

8:24 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:24:43

45% of race

Time at Steady Pace

57:16

30% of race

Time at Slower Pace

45:53

24% of race

Average Pace: 7:10 /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 mi10:23:2520:566:4420:56
6:44
#5775
10K
6.21 mi10:44:3342:046:4621:08
6:48
#6014
15K
9.32 mi11:06:341:04:056:5322:01
7:05
#6868
20K
12.43 mi11:27:571:25:286:5321:23
6:53
#6645
Half
13.11 mi11:32:321:30:036:524:35
6:43
#6581
25K
15.53 mi11:49:131:46:446:5216:41
6:53
#6338
30K
18.64 mi12:11:312:09:026:5522:18
7:11
#6129
20M
20.00 mi12:21:462:19:176:5810:15
7:33
#6167
21M
21.00 mi12:30:102:27:417:028:24
8:24
#6285
35K
21.75 mi12:35:452:33:167:035:35
7:28
#6296
23M
23.00 mi12:45:382:43:097:069:53
7:54
#6368
24M
24.00 mi12:53:212:50:527:077:43
7:43
#6422
40K
24.85 mi13:00:072:57:387:096:46
7:55
#6469
25.2M
25.20 mi13:02:593:00:307:102:52
8:19
#6472
Finish
26.22 mi13:10:213:07:527:107:22
7:14
#6448
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi5775532753278232(Top 29%)7077(Top 44%)7077(Top 125%)
10K6.21 mi3.10 mi6014-2395521-1945521-1946397(Top 23%)5797(Top 36%)5797(Top 103%)
15K9.32 mi3.11 mi6868-8546177-6566177-6568232(Top 29%)7077(Top 44%)7077(Top 125%)
20K12.43 mi3.11 mi6645+2235997+1805997+1806054(Top 21%)5477(Top 34%)5477(Top 97%)
Half13.11 mi0.68 mi6581+645944+535944+535436(Top 19%)4991(Top 31%)4991(Top 88%)
25K15.53 mi2.42 mi6338+2435734+2105734+2105507(Top 19%)4997(Top 31%)4997(Top 89%)
30K18.64 mi3.11 mi6129+2095530+2045530+2045773(Top 20%)5145(Top 32%)5145(Top 91%)
20M20.00 mi1.36 mi6167-385547-175547-177266(Top 26%)5990(Top 37%)5990(Top 106%)
21M21.00 mi1.00 mi6285-1185631-845631-849804(Top 35%)7248(Top 45%)7248(Top 128%)
35K21.75 mi0.75 mi6296-115630+15630+18301(Top 29%)6465(Top 40%)6465(Top 115%)
23M23.00 mi1.25 mi6368-725653-235653-239211(Top 32%)6820(Top 42%)6820(Top 121%)
24M24.00 mi1.00 mi6422-545674-215674-219164(Top 32%)6724(Top 42%)6724(Top 119%)
40K24.85 mi0.85 mi6469-475682-85682-89510(Top 33%)6784(Top 42%)6784(Top 120%)
25.2M25.20 mi0.35 mi6472-35671+115671+117627(Top 27%)5686(Top 35%)5686(Top 101%)
Finish26.22 mi1.02 mi6448+245624+475624+477194(Top 25%)5441(Top 34%)5441(Top 96%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 29%
×21stories
+97ft-345ft

Overall

8232

Males

7077

M18-39

7077

5K→10K

3.1 - 6.2 mi

Top 23%
×5stories
+79ft-138ft

Overall

6397

Males

5797

M18-39

5797

10K→15K

6.2 - 9.3 mi

Top 29%
×3stories
+67ft-78ft

Overall

8232

Males

7077

M18-39

7077

15K→20K

9.3 - 12.4 mi

Top 21%
×5stories
+106ft-86ft

Overall

6054

Males

5477

M18-39

5477

20K→Half

12.4 - 13.1 mi

Top 19%
×2stories
+19ft-37ft

Overall

5436

Males

4991

M18-39

4991

Half→25K

13.1 - 15.5 mi

Top 19%
×4stories
+66ft-88ft

Overall

5507

Males

4997

M18-39

4997

25K→30K

15.5 - 18.6 mi

Top 20%
×9stories
+181ft-148ft

Overall

5773

Males

5145

M18-39

5145

30K→20M

18.6 - 20.0 mi

Top 26%
×5stories
+64ft-50ft

Overall

7266

Males

5990

M18-39

5990

20M→21M

20.0 - 21.0 mi

Top 35%
×8stories
+106ft-24ft

Overall

9804

Males

7248

M18-39

7248

21M→35K

21.0 - 21.8 mi

Top 29%
×7stories
+17ft-86ft

Overall

8301

Males

6465

M18-39

6465

35K→23M

21.8 - 23.0 mi

Top 32%
×5stories
+23ft-63ft

Overall

9211

Males

6820

M18-39

6820

23M→24M

23.0 - 24.0 mi

Top 32%
×6stories
+12ft-82ft

Overall

9164

Males

6724

M18-39

6724

24M→40K

24.0 - 24.9 mi

Top 33%
×1story
+6ft-20ft

Overall

9510

Males

6784

M18-39

6784

40K→25.2M

24.9 - 25.2 mi

Top 27%
×1story
+13ft-16ft

Overall

7627

Males

5686

M18-39

5686

25.2M→Finish

25.2 - 26.2 mi

Top 25%
×2stories
+22ft-21ft

Overall

7194

Males

5441

M18-39

5441

Passing Analysis

Category:
Athletes Passed
1384
Passed By
2057
Net Change
-673
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5775
5K → 10K100339-239#5775#6014
10K → 15K25879-854#6014#6868
15K → 20K26037+223#6868#6645
20K → Half728+64#6645#6581
Half → 25K26118+243#6581#6338
25K → 30K28071+209#6338#6129
30K → 20M63101-38#6129#6167
20M → 21M36154-118#6167#6285
21M → 35K3546-11#6285#6296
35K → 23M60132-72#6296#6368
23M → 24M4599-54#6368#6422
24M → 40K4289-47#6422#6469
40K → 25.2M2629-3#6469#6472
25.2M → Finish7955+24#6472#6448
TOTALS13842057-673
📊

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