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BOSTON MARATHON 2025

Winston Tjin-A-Lim

Bib: 28486•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M55-59)
#0 / 1648
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
28:35
Rank: #23227
Start → 5K
28:35 | 9:12/mi
10K· 6.21 mi
55:53
Rank: #22396 (+831)
5K → 10K
27:18 | 8:47/mi
15K· 9.32 mi
1:23:17
Rank: #21997 (+399)
10K → 15K
27:24 | 8:49/mi
20K· 12.43 mi
1:51:35
Rank: #21831 (+166)
15K → 20K
28:18 | 9:07/mi
Half· 13.11 mi
1:57:46
Rank: #21839 (-8)
20K → Half
6:11 | 9:04/mi
25K· 15.53 mi
2:20:46
Rank: #21837 (+2)
Half → 25K
23:00 | 9:29/mi
30K· 18.64 mi
2:52:38
Rank: #22023 (-186)
25K → 30K
31:52 | 10:15/mi
20M
3:06:42
Rank: #22019 (+4)
30K → 20M
14:04 | 10:21/mi
21M
3:18:53
Rank: #22150 (-131)
20M → 21M
12:11 | 12:11/mi
35K· 21.75 mi
3:26:29
Rank: #22159 (-9)
21M → 35K
7:36 | 10:10/mi
23M
3:39:28
Rank: #22104 (+55)
35K → 23M
12:59 | 10:22/mi
24M
3:49:37
Rank: #22086 (+18)
23M → 24M
10:09 | 10:09/mi
40K· 24.85 mi
3:58:59
Rank: #22134 (-48)
24M → 40K
9:22 | 10:57/mi
25.2M
4:03:27
Rank: #22196 (-62)
40K → 25.2M
4:28 | 12:57/mi
Finish· 26.22 mi
4:14:46
Rank: #22322 (-126)
25.2M → Finish
11:19 | 11:06/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:57:46
Pace8:59 /mi
2nd Half
Distance13.11 mi
Time2:17:00
Pace10:27 /mi
📊Positive Split: 16.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:46:2428:359:1228:35
9:12
-
10K
6.21 mi12:13:4255:539:0027:18
8:47
-0:25
15K
9.32 mi12:41:061:23:178:5627:24
8:49
+0:02
20K
12.43 mi13:09:241:51:358:5928:18
9:07
+0:18
Half
13.11 mi13:15:351:57:468:596:11
9:04
-0:03
25K
15.53 mi13:38:352:20:469:0423:00
9:29
+0:25
30K
18.64 mi14:10:272:52:389:1631:52
10:15
+0:46
20M
20.00 mi14:24:313:06:429:2014:04
10:21
+0:06
21M
21.00 mi14:36:423:18:539:2812:11
12:11
+1:50
35K
21.75 mi14:44:183:26:299:307:36
10:10
-2:01
23M
23.00 mi14:57:173:39:289:3312:59
10:22
+0:12
24M
24.00 mi15:07:263:49:379:3410:09
10:09
-0:13
40K
24.85 mi15:16:483:58:599:379:22
10:57
+0:48
25.2M
25.20 mi15:21:164:03:279:404:28
12:57
+2:00
Finish
26.22 mi15:32:354:14:469:4311:19
11:06
-1:51

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

8:47 /mi

Average Pace

9:43 /mi

Slowest Pace

12:57 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:20:46

55% of race

Time at Steady Pace

1:16:40

30% of race

Time at Slower Pace

37:20

15% of race

Average Pace: 9:43 /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 mi11:46:2428:359:1228:35
9:12
#23227
10K
6.21 mi12:13:4255:539:0027:18
8:47
#22396
15K
9.32 mi12:41:061:23:178:5627:24
8:49
#21997
20K
12.43 mi13:09:241:51:358:5928:18
9:07
#21831
Half
13.11 mi13:15:351:57:468:596:11
9:04
#21839
25K
15.53 mi13:38:352:20:469:0423:00
9:29
#21837
30K
18.64 mi14:10:272:52:389:1631:52
10:15
#22023
20M
20.00 mi14:24:313:06:429:2014:04
10:21
#22019
21M
21.00 mi14:36:423:18:539:2812:11
12:11
#22150
35K
21.75 mi14:44:183:26:299:307:36
10:10
#22159
23M
23.00 mi14:57:173:39:289:3312:59
10:22
#22104
24M
24.00 mi15:07:263:49:379:3410:09
10:09
#22086
40K
24.85 mi15:16:483:58:599:379:22
10:57
#22134
25.2M
25.20 mi15:21:164:03:279:404:28
12:57
#22196
Finish
26.22 mi15:32:354:14:469:4311:19
11:06
#22322
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi23227138751387521110(Top 74%)12994(Top 81%)12994(Top 788%)
10K6.21 mi3.10 mi22396+83113503+37213503+37221343(Top 75%)13065(Top 81%)13065(Top 793%)
15K9.32 mi3.11 mi21997+39913334+16913334+16921110(Top 74%)12994(Top 81%)12994(Top 788%)
20K12.43 mi3.11 mi21831+16613262+7213262+7221481(Top 76%)13119(Top 81%)13119(Top 796%)
Half13.11 mi0.68 mi21839-813266-413266-422063(Top 78%)13367(Top 83%)13367(Top 811%)
25K15.53 mi2.42 mi21837+213257+913257+921808(Top 77%)13204(Top 82%)13204(Top 801%)
30K18.64 mi3.11 mi22023-18613327-7013327-7022328(Top 79%)13312(Top 83%)13312(Top 808%)
20M20.00 mi1.36 mi22019+413309+1813309+1822007(Top 77%)13058(Top 81%)13058(Top 792%)
21M21.00 mi1.00 mi22150-13113337-2813337-2823898(Top 84%)13862(Top 86%)13862(Top 841%)
35K21.75 mi0.75 mi22159-913333+413333+422313(Top 79%)13061(Top 81%)13061(Top 793%)
23M23.00 mi1.25 mi22104+5513267+6613267+6621637(Top 76%)12697(Top 79%)12697(Top 770%)
24M24.00 mi1.00 mi22086+1813245+2213245+2221797(Top 77%)12712(Top 79%)12712(Top 771%)
40K24.85 mi0.85 mi22134-4813242+313242+323038(Top 81%)13256(Top 82%)13256(Top 804%)
25.2M25.20 mi0.35 mi22196-6213270-2813270-2824957(Top 88%)14229(Top 88%)14229(Top 863%)
Finish26.22 mi1.02 mi22322-12613305-3513305-3525559(Top 90%)14555(Top 90%)14555(Top 883%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 74%
×21stories
+97ft-345ft

Overall

21110

Males

12994

M55-59

12994

5K→10K

3.1 - 6.2 mi

Top 75%
×5stories
+79ft-138ft

Overall

21343

Males

13065

M55-59

13065

10K→15K

6.2 - 9.3 mi

Top 74%
×3stories
+67ft-78ft

Overall

21110

Males

12994

M55-59

12994

15K→20K

9.3 - 12.4 mi

Top 76%
×5stories
+106ft-86ft

Overall

21481

Males

13119

M55-59

13119

20K→Half

12.4 - 13.1 mi

Top 78%
×2stories
+19ft-37ft

Overall

22063

Males

13367

M55-59

13367

Half→25K

13.1 - 15.5 mi

Top 77%
×4stories
+66ft-88ft

Overall

21808

Males

13204

M55-59

13204

25K→30K

15.5 - 18.6 mi

Top 79%
×9stories
+181ft-148ft

Overall

22328

Males

13312

M55-59

13312

30K→20M

18.6 - 20.0 mi

Top 77%
×5stories
+64ft-50ft

Overall

22007

Males

13058

M55-59

13058

20M→21M

20.0 - 21.0 mi

Top 84%
×8stories
+106ft-24ft

Overall

23898

Males

13862

M55-59

13862

21M→35K

21.0 - 21.8 mi

Top 79%
×7stories
+17ft-86ft

Overall

22313

Males

13061

M55-59

13061

35K→23M

21.8 - 23.0 mi

Top 76%
×5stories
+23ft-63ft

Overall

21637

Males

12697

M55-59

12697

23M→24M

23.0 - 24.0 mi

Top 77%
×6stories
+12ft-82ft

Overall

21797

Males

12712

M55-59

12712

24M→40K

24.0 - 24.9 mi

Top 81%
×1story
+6ft-20ft

Overall

23038

Males

13256

M55-59

13256

40K→25.2M

24.9 - 25.2 mi

Top 88%
×1story
+13ft-16ft

Overall

24957

Males

14229

M55-59

14229

25.2M→Finish

25.2 - 26.2 mi

Top 90%
×2stories
+22ft-21ft

Overall

25559

Males

14555

M55-59

14555

Passing Analysis

Category:
Athletes Passed
2261
Passed By
1356
Net Change
+905
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23227
5K → 10K85524+831#23227#22396
10K → 15K44142+399#22396#21997
15K → 20K268102+166#21997#21831
20K → Half3139-8#21831#21839
Half → 25K151149+2#21839#21837
25K → 30K130316-186#21837#22023
30K → 20M9389+4#22023#22019
20M → 21M52183-131#22019#22150
21M → 35K3241-9#22150#22159
35K → 23M10550+55#22159#22104
23M → 24M4931+18#22104#22086
24M → 40K3381-48#22086#22134
40K → 25.2M365-62#22134#22196
25.2M → Finish18144-126#22196#22322
TOTALS22611356+905
📊

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