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BOSTON MARATHON 2025

Ken-Win To

Bib: 6231•M

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 15%
Gender (Male)
#0 / 16105
Top 25%
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
21:06
Rank: #6243
Start → 5K
21:06 | 6:47/mi
10K· 6.21 mi
42:15
Rank: #6289 (-46)
5K → 10K
21:09 | 6:48/mi
15K· 9.32 mi
1:03:20
Rank: #6146 (+143)
10K → 15K
21:05 | 6:47/mi
20K· 12.43 mi
1:24:40
Rank: #6052 (+94)
15K → 20K
21:20 | 6:52/mi
Half· 13.11 mi
1:29:13
Rank: #5994 (+58)
20K → Half
4:33 | 6:40/mi
25K· 15.53 mi
1:45:50
Rank: #5826 (+168)
Half → 25K
16:37 | 6:51/mi
30K· 18.64 mi
2:07:23
Rank: #5454 (+372)
25K → 30K
21:33 | 6:56/mi
20M
2:16:38
Rank: #5200 (+254)
30K → 20M
9:15 | 6:48/mi
21M
2:23:48
Rank: #5001 (+199)
20M → 21M
7:10 | 7:10/mi
35K· 21.75 mi
2:28:40
Rank: #4851 (+150)
21M → 35K
4:52 | 6:30/mi
23M
2:37:10
Rank: #4651 (+200)
35K → 23M
8:30 | 6:47/mi
24M
2:43:44
Rank: #4487 (+164)
23M → 24M
6:34 | 6:34/mi
40K· 24.85 mi
2:49:35
Rank: #4403 (+84)
24M → 40K
5:51 | 6:51/mi
25.2M
2:52:12
Rank: #4388 (+15)
40K → 25.2M
2:37 | 7:35/mi
Finish· 26.22 mi
2:59:07
Rank: #4392 (-4)
25.2M → Finish
6:55 | 6:47/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:29:13
Pace6:48 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:29:54
Pace6:51 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:27:2321:066:4721:06
6:47
-
10K
6.21 mi10:48:3242:156:4821:09
6:48
+0:01
15K
9.32 mi11:09:371:03:206:4821:05
6:47
-0:01
20K
12.43 mi11:30:571:24:406:4921:20
6:52
+0:05
Half
13.11 mi11:35:301:29:136:484:33
6:40
-0:12
25K
15.53 mi11:52:071:45:506:4916:37
6:51
+0:11
30K
18.64 mi12:13:402:07:236:5021:33
6:56
+0:05
20M
20.00 mi12:22:552:16:386:509:15
6:48
-0:08
21M
21.00 mi12:30:052:23:486:517:10
7:10
+0:22
35K
21.75 mi12:34:572:28:406:504:52
6:30
-0:40
23M
23.00 mi12:43:272:37:106:508:30
6:47
+0:17
24M
24.00 mi12:50:012:43:446:496:34
6:34
-0:13
40K
24.85 mi12:55:522:49:356:495:51
6:51
+0:17
25.2M
25.20 mi12:58:292:52:126:502:37
7:35
+0:44
Finish
26.22 mi13:05:242:59:076:506:55
6:47
-0:48

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

6:30 /mi

Average Pace

6:50 /mi

Slowest Pace

7:35 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:49:20

95% of race

Time at Steady Pace

9:47

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:50 /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 mi10:27:2321:066:4721:06
6:47
#6243
10K
6.21 mi10:48:3242:156:4821:09
6:48
#6289
15K
9.32 mi11:09:371:03:206:4821:05
6:47
#6146
20K
12.43 mi11:30:571:24:406:4921:20
6:52
#6052
Half
13.11 mi11:35:301:29:136:484:33
6:40
#5994
25K
15.53 mi11:52:071:45:506:4916:37
6:51
#5826
30K
18.64 mi12:13:402:07:236:5021:33
6:56
#5454
20M
20.00 mi12:22:552:16:386:509:15
6:48
#5200
21M
21.00 mi12:30:052:23:486:517:10
7:10
#5001
35K
21.75 mi12:34:572:28:406:504:52
6:30
#4851
23M
23.00 mi12:43:272:37:106:508:30
6:47
#4651
24M
24.00 mi12:50:012:43:446:496:34
6:34
#4487
40K
24.85 mi12:55:522:49:356:495:51
6:51
#4403
25.2M
25.20 mi12:58:292:52:126:502:37
7:35
#4388
Finish
26.22 mi13:05:242:59:076:506:55
6:47
#4392
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi6243571557155950(Top 21%)5416(Top 34%)5416(Top 96%)
10K6.21 mi3.10 mi6289-465755-405755-406457(Top 23%)5845(Top 36%)5845(Top 104%)
15K9.32 mi3.11 mi6146+1435623+1325623+1325950(Top 21%)5416(Top 34%)5416(Top 96%)
20K12.43 mi3.11 mi6052+945526+975526+975913(Top 21%)5361(Top 33%)5361(Top 95%)
Half13.11 mi0.68 mi5994+585477+495477+495025(Top 18%)4654(Top 29%)4654(Top 82%)
25K15.53 mi2.42 mi5826+1685322+1555322+1555304(Top 19%)4851(Top 30%)4851(Top 86%)
30K18.64 mi3.11 mi5454+3725002+3205002+3204318(Top 15%)3961(Top 25%)3961(Top 70%)
20M20.00 mi1.36 mi5200+2544770+2324770+2322998(Top 11%)2797(Top 17%)2797(Top 50%)
21M21.00 mi1.00 mi5001+1994602+1684602+1683016(Top 11%)2790(Top 17%)2790(Top 49%)
35K21.75 mi0.75 mi4851+1504471+1314471+1312527(Top 9%)2360(Top 15%)2360(Top 42%)
23M23.00 mi1.25 mi4651+2004287+1844287+1842666(Top 9%)2458(Top 15%)2458(Top 44%)
24M24.00 mi1.00 mi4487+1644138+1494138+1492371(Top 8%)2196(Top 14%)2196(Top 39%)
40K24.85 mi0.85 mi4403+844055+834055+833072(Top 11%)2768(Top 17%)2768(Top 49%)
25.2M25.20 mi0.35 mi4388+154040+154040+153844(Top 14%)3326(Top 21%)3326(Top 59%)
Finish26.22 mi1.02 mi4392-44034+64034+64438(Top 16%)3754(Top 23%)3754(Top 67%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 21%
×21stories
+97ft-345ft

Overall

5950

Males

5416

M18-39

5416

5K→10K

3.1 - 6.2 mi

Top 23%
×5stories
+79ft-138ft

Overall

6457

Males

5845

M18-39

5845

10K→15K

6.2 - 9.3 mi

Top 21%
×3stories
+67ft-78ft

Overall

5950

Males

5416

M18-39

5416

15K→20K

9.3 - 12.4 mi

Top 21%
×5stories
+106ft-86ft

Overall

5913

Males

5361

M18-39

5361

20K→Half

12.4 - 13.1 mi

Top 18%
×2stories
+19ft-37ft

Overall

5025

Males

4654

M18-39

4654

Half→25K

13.1 - 15.5 mi

Top 19%
×4stories
+66ft-88ft

Overall

5304

Males

4851

M18-39

4851

25K→30K

15.5 - 18.6 mi

Top 15%
×9stories
+181ft-148ft

Overall

4318

Males

3961

M18-39

3961

30K→20M

18.6 - 20.0 mi

Top 11%
×5stories
+64ft-50ft

Overall

2998

Males

2797

M18-39

2797

20M→21M

20.0 - 21.0 mi

Top 11%
×8stories
+106ft-24ft

Overall

3016

Males

2790

M18-39

2790

21M→35K

21.0 - 21.8 mi

Top 9%
×7stories
+17ft-86ft

Overall

2527

Males

2360

M18-39

2360

35K→23M

21.8 - 23.0 mi

Top 9%
×5stories
+23ft-63ft

Overall

2666

Males

2458

M18-39

2458

23M→24M

23.0 - 24.0 mi

Top 8%
×6stories
+12ft-82ft

Overall

2371

Males

2196

M18-39

2196

24M→40K

24.0 - 24.9 mi

Top 11%
×1story
+6ft-20ft

Overall

3072

Males

2768

M18-39

2768

40K→25.2M

24.9 - 25.2 mi

Top 14%
×1story
+13ft-16ft

Overall

3844

Males

3326

M18-39

3326

25.2M→Finish

25.2 - 26.2 mi

Top 16%
×2stories
+22ft-21ft

Overall

4438

Males

3754

M18-39

3754

Passing Analysis

Category:
Athletes Passed
2394
Passed By
543
Net Change
+1851
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6243
5K → 10K169215-46#6243#6289
10K → 15K22077+143#6289#6146
15K → 20K194100+94#6146#6052
20K → Half613+58#6052#5994
Half → 25K20941+168#5994#5826
25K → 30K38715+372#5826#5454
30K → 20M2584+254#5454#5200
20M → 21M2056+199#5200#5001
21M → 35K1500+150#5001#4851
35K → 23M2077+200#4851#4651
23M → 24M1673+164#4651#4487
24M → 40K939+84#4487#4403
40K → 25.2M3015+15#4403#4388
25.2M → Finish4448-4#4388#4392
TOTALS2394543+1851
📊

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