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BOSTON MARATHON 2025

Kam Chan

Bib: 24207•M

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M65-69)
#0 / 639
Top 26%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:26
Rank: #18011
Start → 5K
25:26 | 8:11/mi
10K· 6.21 mi
50:39
Rank: #17643 (+368)
5K → 10K
25:13 | 8:07/mi
15K· 9.32 mi
1:16:04
Rank: #17491 (+152)
10K → 15K
25:25 | 8:11/mi
20K· 12.43 mi
1:42:05
Rank: #17430 (+61)
15K → 20K
26:01 | 8:22/mi
Half· 13.11 mi
1:47:43
Rank: #17441 (-11)
20K → Half
5:38 | 8:15/mi
25K· 15.53 mi
2:08:31
Rank: #17436 (+5)
Half → 25K
20:48 | 8:35/mi
30K· 18.64 mi
2:38:58
Rank: #18307 (-871)
25K → 30K
30:27 | 9:48/mi
20M
2:51:42
Rank: #18332 (-25)
30K → 20M
12:44 | 9:22/mi
21M
3:01:31
Rank: #18270 (+62)
20M → 21M
9:49 | 9:49/mi
35K· 21.75 mi
3:08:17
Rank: #18264 (+6)
21M → 35K
6:46 | 9:03/mi
23M
3:20:28
Rank: #18371 (-107)
35K → 23M
12:11 | 9:44/mi
24M
3:30:05
Rank: #18480 (-109)
23M → 24M
9:37 | 9:37/mi
40K· 24.85 mi
3:38:04
Rank: #18442 (+38)
24M → 40K
7:59 | 9:20/mi
25.2M
3:41:27
Rank: #18407 (+35)
40K → 25.2M
3:23 | 9:49/mi
Finish· 26.22 mi
3:50:22
Rank: #18400 (+7)
25.2M → Finish
8:55 | 8:45/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:47:43
Pace8:13 /mi
2nd Half
Distance13.11 mi
Time2:02:39
Pace9:21 /mi
📊Positive Split: 13.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:23:2525:268:1125:26
8:11
-
10K
6.21 mi11:48:3850:398:0925:13
8:07
-0:04
15K
9.32 mi12:14:031:16:048:1025:25
8:11
+0:04
20K
12.43 mi12:40:041:42:058:1326:01
8:22
+0:11
Half
13.11 mi12:45:421:47:438:135:38
8:15
-0:07
25K
15.53 mi13:06:302:08:318:1620:48
8:35
+0:20
30K
18.64 mi13:36:572:38:588:3230:27
9:48
+1:13
20M
20.00 mi13:49:412:51:428:3512:44
9:22
-0:26
21M
21.00 mi13:59:303:01:318:399:49
9:49
+0:27
35K
21.75 mi14:06:163:08:178:396:46
9:03
-0:46
23M
23.00 mi14:18:273:20:288:4312:11
9:44
+0:41
24M
24.00 mi14:28:043:30:058:459:37
9:37
-0:07
40K
24.85 mi14:36:033:38:048:467:59
9:20
-0:17
25.2M
25.20 mi14:39:263:41:278:473:23
9:49
+0:29
Finish
26.22 mi14:48:213:50:228:488:55
8:45
-1:04

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

8:07 /mi

Average Pace

8:48 /mi

Slowest Pace

9:49 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:08:31

56% of race

Time at Steady Pace

36:24

16% of race

Time at Slower Pace

1:05:27

28% of race

Average Pace: 8:47 /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 mi11:23:2525:268:1125:26
8:11
#18011
10K
6.21 mi11:48:3850:398:0925:13
8:07
#17643
15K
9.32 mi12:14:031:16:048:1025:25
8:11
#17491
20K
12.43 mi12:40:041:42:058:1326:01
8:22
#17430
Half
13.11 mi12:45:421:47:438:135:38
8:15
#17441
25K
15.53 mi13:06:302:08:318:1620:48
8:35
#17436
30K
18.64 mi13:36:572:38:588:3230:27
9:48
#18307
20M
20.00 mi13:49:412:51:428:3512:44
9:22
#18332
21M
21.00 mi13:59:303:01:318:399:49
9:49
#18270
35K
21.75 mi14:06:163:08:178:396:46
9:03
#18264
23M
23.00 mi14:18:273:20:288:4312:11
9:44
#18371
24M
24.00 mi14:28:043:30:058:459:37
9:37
#18480
40K
24.85 mi14:36:033:38:048:467:59
9:20
#18442
25.2M
25.20 mi14:39:263:41:278:473:23
9:49
#18407
Finish
26.22 mi14:48:213:50:228:488:55
8:45
#18400
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM65-69Seg. OverallSeg. MalesSeg. M65-69
5K3.11 mi3.11 mi18011116061160617268(Top 61%)11337(Top 70%)11337(Top 1774%)
10K6.21 mi3.10 mi17643+36811473+13311473+13317308(Top 61%)11371(Top 71%)11371(Top 1779%)
15K9.32 mi3.11 mi17491+15211430+4311430+4317268(Top 61%)11337(Top 70%)11337(Top 1774%)
20K12.43 mi3.11 mi17430+6111388+4211388+4217383(Top 61%)11342(Top 70%)11342(Top 1775%)
Half13.11 mi0.68 mi17441-1111389-111389-117620(Top 62%)11462(Top 71%)11462(Top 1794%)
25K15.53 mi2.42 mi17436+511366+2311366+2317668(Top 62%)11391(Top 71%)11391(Top 1783%)
30K18.64 mi3.11 mi18307-87111694-32811694-32820993(Top 74%)12713(Top 79%)12713(Top 1990%)
20M20.00 mi1.36 mi18332-2511677+1711677+1718604(Top 65%)11499(Top 71%)11499(Top 1800%)
21M21.00 mi1.00 mi18270+6211624+5311624+5317538(Top 62%)10942(Top 68%)10942(Top 1712%)
35K21.75 mi0.75 mi18264+611606+1811606+1818428(Top 65%)11232(Top 70%)11232(Top 1758%)
23M23.00 mi1.25 mi18371-10711632-2611632-2619546(Top 69%)11688(Top 73%)11688(Top 1829%)
24M24.00 mi1.00 mi18480-10911648-1611648-1620043(Top 71%)11883(Top 74%)11883(Top 1860%)
40K24.85 mi0.85 mi18442+3811602+4611602+4618004(Top 63%)10830(Top 67%)10830(Top 1695%)
25.2M25.20 mi0.35 mi18407+3511577+2511577+2516121(Top 57%)9946(Top 62%)9946(Top 1556%)
Finish26.22 mi1.02 mi18400+711547+3011547+3017760(Top 63%)10755(Top 67%)10755(Top 1683%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 61%
×21stories
+97ft-345ft

Overall

17268

Males

11337

M65-69

11337

5K→10K

3.1 - 6.2 mi

Top 61%
×5stories
+79ft-138ft

Overall

17308

Males

11371

M65-69

11371

10K→15K

6.2 - 9.3 mi

Top 61%
×3stories
+67ft-78ft

Overall

17268

Males

11337

M65-69

11337

15K→20K

9.3 - 12.4 mi

Top 61%
×5stories
+106ft-86ft

Overall

17383

Males

11342

M65-69

11342

20K→Half

12.4 - 13.1 mi

Top 62%
×2stories
+19ft-37ft

Overall

17620

Males

11462

M65-69

11462

Half→25K

13.1 - 15.5 mi

Top 62%
×4stories
+66ft-88ft

Overall

17668

Males

11391

M65-69

11391

25K→30K

15.5 - 18.6 mi

Top 74%
×9stories
+181ft-148ft

Overall

20993

Males

12713

M65-69

12713

30K→20M

18.6 - 20.0 mi

Top 65%
×5stories
+64ft-50ft

Overall

18604

Males

11499

M65-69

11499

20M→21M

20.0 - 21.0 mi

Top 62%
×8stories
+106ft-24ft

Overall

17538

Males

10942

M65-69

10942

21M→35K

21.0 - 21.8 mi

Top 65%
×7stories
+17ft-86ft

Overall

18428

Males

11232

M65-69

11232

35K→23M

21.8 - 23.0 mi

Top 69%
×5stories
+23ft-63ft

Overall

19546

Males

11688

M65-69

11688

23M→24M

23.0 - 24.0 mi

Top 71%
×6stories
+12ft-82ft

Overall

20043

Males

11883

M65-69

11883

24M→40K

24.0 - 24.9 mi

Top 63%
×1story
+6ft-20ft

Overall

18004

Males

10830

M65-69

10830

40K→25.2M

24.9 - 25.2 mi

Top 57%
×1story
+13ft-16ft

Overall

16121

Males

9946

M65-69

9946

25.2M→Finish

25.2 - 26.2 mi

Top 63%
×2stories
+22ft-21ft

Overall

17760

Males

10755

M65-69

10755

Passing Analysis

Category:
Athletes Passed
1870
Passed By
2259
Net Change
-389
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18011
5K → 10K496128+368#18011#17643
10K → 15K280128+152#17643#17491
15K → 20K214153+61#17491#17430
20K → Half2637-11#17430#17441
Half → 25K179174+5#17441#17436
25K → 30K60931-871#17436#18307
30K → 20M110135-25#18307#18332
20M → 21M12664+62#18332#18270
21M → 35K6559+6#18270#18264
35K → 23M78185-107#18264#18371
23M → 24M44153-109#18371#18480
24M → 40K8648+38#18480#18442
40K → 25.2M449+35#18442#18407
25.2M → Finish6255+7#18407#18400
TOTALS18702259-389
📊

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