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BOSTON MARATHON 2025

Pui Yuk Chan

Bib: 649•M

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 3%
Gender (Male)
#0 / 16105
Top 5%
Division (M18-39)
#0 / 5642
Top 12%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
18:11
Rank: #711
Start → 5K
18:11 | 5:51/mi
10K· 6.21 mi
36:22
Rank: #701 (+10)
5K → 10K
18:11 | 5:51/mi
15K· 9.32 mi
54:33
Rank: #669 (+32)
10K → 15K
18:11 | 5:51/mi
20K· 12.43 mi
1:13:06
Rank: #696 (-27)
15K → 20K
18:33 | 5:58/mi
Half· 13.11 mi
1:17:11
Rank: #711 (-15)
20K → Half
4:05 | 5:59/mi
25K· 15.53 mi
1:31:38
Rank: #692 (+19)
Half → 25K
14:27 | 5:58/mi
30K· 18.64 mi
1:50:38
Rank: #677 (+15)
25K → 30K
19:00 | 6:07/mi
20M
1:59:05
Rank: #669 (+8)
30K → 20M
8:27 | 6:13/mi
21M
2:05:53
Rank: #693 (-24)
20M → 21M
6:48 | 6:48/mi
35K· 21.75 mi
2:10:53
Rank: #728 (-35)
21M → 35K
5:00 | 6:41/mi
23M
2:19:16
Rank: #764 (-36)
35K → 23M
8:23 | 6:42/mi
24M
2:25:55
Rank: #804 (-40)
23M → 24M
6:39 | 6:39/mi
40K· 24.85 mi
2:31:31
Rank: #814 (-10)
24M → 40K
5:36 | 6:33/mi
25.2M
2:33:54
Rank: #815 (-1)
40K → 25.2M
2:23 | 6:55/mi
Finish· 26.22 mi
2:40:14
Rank: #830 (-15)
25.2M → Finish
6:20 | 6:13/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:17:11
Pace5:53 /mi
2nd Half
Distance13.11 mi
Time1:23:03
Pace6:20 /mi
📊Positive Split: 7.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:18:2118:115:5118:11
5:51
-
10K
6.21 mi10:36:3236:225:5118:11
5:51
0:00
15K
9.32 mi10:54:4354:335:5118:11
5:51
0:00
20K
12.43 mi11:13:161:13:065:5318:33
5:58
+0:07
Half
13.11 mi11:17:211:17:115:534:05
5:59
+0:01
25K
15.53 mi11:31:481:31:385:5414:27
5:58
-0:01
30K
18.64 mi11:50:481:50:385:5619:00
6:07
+0:09
20M
20.00 mi11:59:151:59:055:578:27
6:13
+0:06
21M
21.00 mi12:06:032:05:536:006:48
6:48
+0:35
35K
21.75 mi12:11:032:10:536:015:00
6:41
-0:07
23M
23.00 mi12:19:262:19:166:038:23
6:42
+0:01
24M
24.00 mi12:26:052:25:556:056:39
6:39
-0:03
40K
24.85 mi12:31:412:31:316:065:36
6:33
-0:06
25.2M
25.20 mi12:34:042:33:546:062:23
6:55
+0:22
Finish
26.22 mi12:40:242:40:146:076:20
6:13
-0:42

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

5:51 /mi

Average Pace

6:07 /mi

Slowest Pace

6:55 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:05:25

78% of race

Time at Steady Pace

32:26

20% of race

Time at Slower Pace

2:23

1% of race

Average Pace: 6:07 /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 mi10:18:2118:115:5118:11
5:51
#711
10K
6.21 mi10:36:3236:225:5118:11
5:51
#701
15K
9.32 mi10:54:4354:335:5118:11
5:51
#669
20K
12.43 mi11:13:161:13:065:5318:33
5:58
#696
Half
13.11 mi11:17:211:17:115:534:05
5:59
#711
25K
15.53 mi11:31:481:31:385:5414:27
5:58
#692
30K
18.64 mi11:50:481:50:385:5619:00
6:07
#677
20M
20.00 mi11:59:151:59:055:578:27
6:13
#669
21M
21.00 mi12:06:032:05:536:006:48
6:48
#693
35K
21.75 mi12:11:032:10:536:015:00
6:41
#728
23M
23.00 mi12:19:262:19:166:038:23
6:42
#764
24M
24.00 mi12:26:052:25:556:056:39
6:39
#804
40K
24.85 mi12:31:412:31:316:065:36
6:33
#814
25.2M
25.20 mi12:34:042:33:546:062:23
6:55
#815
Finish
26.22 mi12:40:242:40:146:076:20
6:13
#830
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi711661661635(Top 2%)589(Top 4%)589(Top 10%)
10K6.21 mi3.10 mi701+10653+8653+8717(Top 3%)672(Top 4%)672(Top 12%)
15K9.32 mi3.11 mi669+32621+32621+32635(Top 2%)589(Top 4%)589(Top 10%)
20K12.43 mi3.11 mi696-27649-28649-28806(Top 3%)757(Top 5%)757(Top 13%)
Half13.11 mi0.68 mi711-15663-14663-141077(Top 4%)1019(Top 6%)1019(Top 18%)
25K15.53 mi2.42 mi692+19644+19644+19705(Top 2%)657(Top 4%)657(Top 12%)
30K18.64 mi3.11 mi677+15630+14630+14721(Top 3%)675(Top 4%)675(Top 12%)
20M20.00 mi1.36 mi669+8622+8622+8774(Top 3%)731(Top 5%)731(Top 13%)
21M21.00 mi1.00 mi693-24646-24646-241508(Top 5%)1419(Top 9%)1419(Top 25%)
35K21.75 mi0.75 mi728-35680-34680-343344(Top 12%)3043(Top 19%)3043(Top 54%)
23M23.00 mi1.25 mi764-36715-35715-352207(Top 8%)2058(Top 13%)2058(Top 36%)
24M24.00 mi1.00 mi804-40753-38753-382684(Top 9%)2458(Top 15%)2458(Top 44%)
40K24.85 mi0.85 mi814-10762-9762-91760(Top 6%)1623(Top 10%)1623(Top 29%)
25.2M25.20 mi0.35 mi815-1763-1763-11210(Top 4%)1112(Top 7%)1112(Top 20%)
Finish26.22 mi1.02 mi830-15776-13776-131548(Top 5%)1437(Top 9%)1437(Top 25%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 2%
×21stories
+97ft-345ft

Overall

635

Males

589

M18-39

589

5K→10K

3.1 - 6.2 mi

Top 3%
×5stories
+79ft-138ft

Overall

717

Males

672

M18-39

672

10K→15K

6.2 - 9.3 mi

Top 2%
×3stories
+67ft-78ft

Overall

635

Males

589

M18-39

589

15K→20K

9.3 - 12.4 mi

Top 3%
×5stories
+106ft-86ft

Overall

806

Males

757

M18-39

757

20K→Half

12.4 - 13.1 mi

Top 4%
×2stories
+19ft-37ft

Overall

1077

Males

1019

M18-39

1019

Half→25K

13.1 - 15.5 mi

Top 2%
×4stories
+66ft-88ft

Overall

705

Males

657

M18-39

657

25K→30K

15.5 - 18.6 mi

Top 3%
×9stories
+181ft-148ft

Overall

721

Males

675

M18-39

675

30K→20M

18.6 - 20.0 mi

Top 3%
×5stories
+64ft-50ft

Overall

774

Males

731

M18-39

731

20M→21M

20.0 - 21.0 mi

Top 5%
×8stories
+106ft-24ft

Overall

1508

Males

1419

M18-39

1419

21M→35K

21.0 - 21.8 mi

Top 12%
×7stories
+17ft-86ft

Overall

3344

Males

3043

M18-39

3043

35K→23M

21.8 - 23.0 mi

Top 8%
×5stories
+23ft-63ft

Overall

2207

Males

2058

M18-39

2058

23M→24M

23.0 - 24.0 mi

Top 9%
×6stories
+12ft-82ft

Overall

2684

Males

2458

M18-39

2458

24M→40K

24.0 - 24.9 mi

Top 6%
×1story
+6ft-20ft

Overall

1760

Males

1623

M18-39

1623

40K→25.2M

24.9 - 25.2 mi

Top 4%
×1story
+13ft-16ft

Overall

1210

Males

1112

M18-39

1112

25.2M→Finish

25.2 - 26.2 mi

Top 5%
×2stories
+22ft-21ft

Overall

1548

Males

1437

M18-39

1437

Passing Analysis

Category:
Athletes Passed
244
Passed By
363
Net Change
-119
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#711
5K → 10K3929+10#711#701
10K → 15K397+32#701#669
15K → 20K1744-27#669#696
20K → Half015-15#696#711
Half → 25K3011+19#711#692
25K → 30K4025+15#692#677
30K → 20M2214+8#677#669
20M → 21M731-24#669#693
21M → 35K843-35#693#728
35K → 23M743-36#728#764
23M → 24M848-40#764#804
24M → 40K1121-10#804#814
40K → 25.2M56-1#814#815
25.2M → Finish1126-15#815#830
TOTALS244363-119
📊

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