Boston Marathon logo
BOSTON MARATHON 2025

Cho Wai Yau

Bib: 21363•M

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M60-64)
#0 / 1259
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
8:13/mi
25:31
↑ 97↓ 3451.5%
10K· 6.21 mi
8:14/mi
51:07
↑ 79↓ 1380.4%
15K· 9.32 mi
8:37/mi
1:17:53
↑ 67↓ 78
20K· 12.43 mi
9:26/mi
1:47:10
↑ 106↓ 860.1%
Half· 13.11 mi
9:30/mi
1:53:39
↑ 19↓ 370.5%
25K· 15.53 mi
9:36/mi
2:16:56
↑ 66↓ 880.2%
30K· 18.64 mi
10:08/mi
2:48:25
↑ 181↓ 1480.2%
20M
10:39/mi
3:02:54
↑ 64↓ 500.2%
21M
11:25/mi
3:14:19
↑ 106↓ 241.6%
35K· 21.75 mi
10:20/mi
3:22:03
↑ 17↓ 861.7%
23M
9:55/mi
3:34:28
↑ 23↓ 630.6%
24M
10:04/mi
3:44:32
↓ 821.3%
40K· 24.85 mi
10:13/mi
3:53:16
↓ 200.3%
25.2M
10:55/mi
3:57:02
↑ 13↓ 160.2%
Finish· 26.22 mi
10:05/mi
4:07:19
↑ 22↓ 21

The Course

Is this your race?

Claim it — unlock a deeper AI report on this race, free

A personalized Race Performance Report that goes beyond this page — emailed to you, built from your real splits.

Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:53:39
Pace8:40 /mi
2nd Half
Distance13.11 mi
Time2:13:40
Pace10:12 /mi
📊Positive Split: 17.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:19:0025:318:1325:31
8:13
-
10K
6.21 mi11:44:3651:078:1425:36
8:14
+0:01
15K
9.32 mi12:11:221:17:538:2126:46
8:37
+0:23
20K
12.43 mi12:40:391:47:108:3729:17
9:26
+0:49
Half
13.11 mi12:47:081:53:398:406:29
9:30
+0:04
25K
15.53 mi13:10:252:16:568:4923:17
9:36
+0:06
30K
18.64 mi13:41:542:48:259:0231:29
10:08
+0:32
20M
20.00 mi13:56:233:02:549:0914:29
10:39
+0:31
21M
21.00 mi14:07:483:14:199:1511:25
11:25
+0:46
35K
21.75 mi14:15:323:22:039:177:44
10:20
-1:05
23M
23.00 mi14:27:573:34:289:1912:25
9:55
-0:25
24M
24.00 mi14:38:013:44:329:2110:04
10:04
+0:09
40K
24.85 mi14:46:453:53:169:238:44
10:13
+0:09
25.2M
25.20 mi14:50:313:57:029:243:46
10:55
+0:42
Finish
26.22 mi15:00:484:07:199:2610:17
10:05
-0:50

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

8:13 /mi

Average Pace

9:26 /mi

Slowest Pace

11:25 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:16:56

55% of race

Time at Steady Pace

1:20:43

33% of race

Time at Slower Pace

29:40

12% of race

Average Pace: 9:26 /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 mi11:19:0025:318:1325:31
8:13
#18193
10K
6.21 mi11:44:3651:078:1425:36
8:14
#18145
15K
9.32 mi12:11:221:17:538:2126:46
8:37
#18761
20K
12.43 mi12:40:391:47:108:3729:17
9:26
#19997
Half
13.11 mi12:47:081:53:398:406:29
9:30
#20235
25K
15.53 mi13:10:252:16:568:4923:17
9:36
#20697
30K
18.64 mi13:41:542:48:259:0231:29
10:08
#21036
20M
20.00 mi13:56:233:02:549:0914:29
10:39
#21222
21M
21.00 mi14:07:483:14:199:1511:25
11:25
#21329
35K
21.75 mi14:15:323:22:039:177:44
10:20
#21422
23M
23.00 mi14:27:573:34:289:1912:25
9:55
#21328
24M
24.00 mi14:38:013:44:329:2110:04
10:04
#21336
40K
24.85 mi14:46:453:53:169:238:44
10:13
#21321
25.2M
25.20 mi14:50:313:57:029:243:46
10:55
#21304
Finish
26.22 mi15:00:484:07:199:2610:17
10:05
#21380
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi18193116841168420006(Top 70%)12509(Top 78%)12509(Top 994%)
10K6.21 mi3.10 mi18145+4811677+711677+718163(Top 64%)11716(Top 73%)11716(Top 931%)
15K9.32 mi3.11 mi18761-61611942-26511942-26520006(Top 70%)12509(Top 78%)12509(Top 994%)
20K12.43 mi3.11 mi19997-123612469-52712469-52722647(Top 80%)13635(Top 85%)13635(Top 1083%)
Half13.11 mi0.68 mi20235-23812561-9212561-9223552(Top 83%)14029(Top 87%)14029(Top 1114%)
25K15.53 mi2.42 mi20697-46212768-20712768-20722189(Top 78%)13373(Top 83%)13373(Top 1062%)
30K18.64 mi3.11 mi21036-33912872-10412872-10421997(Top 77%)13169(Top 82%)13169(Top 1046%)
20M20.00 mi1.36 mi21222-18612931-5912931-5922841(Top 80%)13443(Top 83%)13443(Top 1068%)
21M21.00 mi1.00 mi21329-10712975-4412975-4422423(Top 79%)13162(Top 82%)13162(Top 1045%)
35K21.75 mi0.75 mi21422-9313003-2813003-2822779(Top 80%)13290(Top 83%)13290(Top 1056%)
23M23.00 mi1.25 mi21328+9412935+6812935+6820228(Top 71%)12017(Top 75%)12017(Top 954%)
24M24.00 mi1.00 mi21336-812919+1612919+1621532(Top 76%)12606(Top 78%)12606(Top 1001%)
40K24.85 mi0.85 mi21321+1512891+2812891+2821109(Top 74%)12338(Top 77%)12338(Top 980%)
25.2M25.20 mi0.35 mi21304+1712874+1712874+1720373(Top 72%)11973(Top 74%)11973(Top 951%)
Finish26.22 mi1.02 mi21380-7612890-1612890-1623187(Top 82%)13366(Top 83%)13366(Top 1062%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 70%
×21story building
+97ft-345ft

Overall

20006

Males

12509

M60-64

12509

5K→10K

3.1 - 6.2 mi

Top 64%
×5story building
+79ft-138ft

Overall

18163

Males

11716

M60-64

11716

10K→15K

6.2 - 9.3 mi

Top 70%
×3story building
+67ft-78ft

Overall

20006

Males

12509

M60-64

12509

15K→20K

9.3 - 12.4 mi

Top 80%
×5story building
+106ft-86ft

Overall

22647

Males

13635

M60-64

13635

20K→Half

12.4 - 13.1 mi

Top 83%
×2story building
+19ft-37ft

Overall

23552

Males

14029

M60-64

14029

Half→25K

13.1 - 15.5 mi

Top 78%
×4story building
+66ft-88ft

Overall

22189

Males

13373

M60-64

13373

25K→30K

15.5 - 18.6 mi

Top 77%
×9story building
+181ft-148ft

Overall

21997

Males

13169

M60-64

13169

30K→20M

18.6 - 20.0 mi

Top 80%
×5story building
+64ft-50ft

Overall

22841

Males

13443

M60-64

13443

20M→21M

20.0 - 21.0 mi

Top 79%
×8story building
+106ft-24ft

Overall

22423

Males

13162

M60-64

13162

21M→35K

21.0 - 21.8 mi

Top 80%
×7story building
+17ft-86ft

Overall

22779

Males

13290

M60-64

13290

35K→23M

21.8 - 23.0 mi

Top 71%
×5story building
+23ft-63ft

Overall

20228

Males

12017

M60-64

12017

23M→24M

23.0 - 24.0 mi

Top 76%
×6story building
+12ft-82ft

Overall

21532

Males

12606

M60-64

12606

24M→40K

24.0 - 24.9 mi

Top 74%
×1story
+6ft-20ft

Overall

21109

Males

12338

M60-64

12338

40K→25.2M

24.9 - 25.2 mi

Top 72%
×1story
+13ft-16ft

Overall

20373

Males

11973

M60-64

11973

25.2M→Finish

25.2 - 26.2 mi

Top 82%
×2story building
+22ft-21ft

Overall

23187

Males

13366

M60-64

13366

Passing Analysis

Category:
Athletes Passed
978
Passed By
4165
Net Change
-3187
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18193
5K → 10K301253+48#18193#18145
10K → 15K44660-616#18145#18761
15K → 20K241260-1236#18761#19997
20K → Half6244-238#19997#20235
Half → 25K53515-462#20235#20697
25K → 30K114453-339#20697#21036
30K → 20M58244-186#21036#21222
20M → 21M51158-107#21222#21329
21M → 35K25118-93#21329#21422
35K → 23M14551+94#21422#21328
23M → 24M4149-8#21328#21336
24M → 40K6045+15#21336#21321
40K → 25.2M3720+17#21321#21304
25.2M → Finish1995-76#21304#21380
TOTALS9784165-3187
📊

Passing Visuals

Category:
Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing