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BOSTON MARATHON 2025

Ka Yee Cheung

Bib: 10628•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 22%
Gender (Female)
#0 / 12228
Top 6%
Masters (Masters Women)
#0 / 6759
Top 2%
Division (F40-44)
#0 / 1718
Top 4%
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
6:53/mi
21:22
↑ 97↓ 3451.5%
10K· 6.21 mi
6:48/mi
42:29
↑ 79↓ 1380.4%
15K· 9.32 mi
6:51/mi
1:03:45
↑ 67↓ 78
20K· 12.43 mi
7:01/mi
1:25:32
↑ 106↓ 860.1%
Half· 13.11 mi
6:55/mi
1:30:15
↑ 19↓ 370.5%
25K· 15.53 mi
7:06/mi
1:47:29
↑ 66↓ 880.2%
30K· 18.64 mi
7:25/mi
2:10:30
↑ 181↓ 1480.2%
20M
7:30/mi
2:20:41
↑ 64↓ 500.2%
21M
8:00/mi
2:28:41
↑ 106↓ 241.6%
35K· 21.75 mi
7:18/mi
2:34:09
↑ 17↓ 861.7%
23M
7:30/mi
2:43:33
↑ 23↓ 630.6%
24M
7:17/mi
2:50:50
↓ 821.3%
40K· 24.85 mi
7:19/mi
2:57:05
↓ 200.3%
25.2M
8:04/mi
2:59:52
↑ 13↓ 160.2%
Finish· 26.22 mi
7:08/mi
3:07:08
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:30:15
Pace6:53 /mi
2nd Half
Distance13.11 mi
Time1:36:53
Pace7:23 /mi
📊Positive Split: 7.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:47:0021:226:5321:22
6:53
-
10K
6.21 mi11:08:0742:296:5021:07
6:48
-0:05
15K
9.32 mi11:29:231:03:456:5021:16
6:51
+0:03
20K
12.43 mi11:51:101:25:326:5321:47
7:01
+0:10
Half
13.11 mi11:55:531:30:156:534:43
6:55
-0:06
25K
15.53 mi12:13:071:47:296:5517:14
7:06
+0:11
30K
18.64 mi12:36:082:10:307:0023:01
7:25
+0:19
20M
20.00 mi12:46:192:20:417:0210:11
7:30
+0:05
21M
21.00 mi12:54:192:28:417:058:00
8:00
+0:30
35K
21.75 mi12:59:472:34:097:055:28
7:18
-0:42
23M
23.00 mi13:09:112:43:337:079:24
7:30
+0:12
24M
24.00 mi13:16:282:50:507:077:17
7:17
-0:13
40K
24.85 mi13:22:432:57:057:076:15
7:19
+0:02
25.2M
25.20 mi13:25:302:59:527:082:47
8:04
+0:45
Finish
26.22 mi13:32:463:07:087:097:16
7:08
-0:56

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

6:48 /mi

Average Pace

7:09 /mi

Slowest Pace

8:04 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:36:46

84% of race

Time at Steady Pace

27:35

15% of race

Time at Slower Pace

2:47

1% of race

Average Pace: 7:08 /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 mi10:47:0021:226:5321:22
6:53
#6910
10K
6.21 mi11:08:0742:296:5021:07
6:48
#6649
15K
9.32 mi11:29:231:03:456:5021:16
6:51
#6575
20K
12.43 mi11:51:101:25:326:5321:47
7:01
#6702
Half
13.11 mi11:55:531:30:156:534:43
6:55
#6710
25K
15.53 mi12:13:071:47:296:5517:14
7:06
#6720
30K
18.64 mi12:36:082:10:307:0023:01
7:25
#6677
20M
20.00 mi12:46:192:20:417:0210:11
7:30
#6602
21M
21.00 mi12:54:192:28:417:058:00
8:00
#6579
35K
21.75 mi12:59:472:34:097:055:28
7:18
#6554
23M
23.00 mi13:09:112:43:337:079:24
7:30
#6482
24M
24.00 mi13:16:282:50:507:077:17
7:17
#6413
40K
24.85 mi13:22:432:57:057:076:15
7:19
#6360
25.2M
25.20 mi13:25:302:59:527:082:47
8:04
#6325
Finish
26.22 mi13:32:463:07:087:097:16
7:08
#6258
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi69106586586547(Top 23%)629(Top 5%)629(Top 37%)
10K6.21 mi3.10 mi6649+261611+47611+476379(Top 22%)584(Top 5%)584(Top 34%)
15K9.32 mi3.11 mi6575+74619-8619-86547(Top 23%)629(Top 5%)629(Top 37%)
20K12.43 mi3.11 mi6702-127640-21640-216948(Top 24%)762(Top 6%)762(Top 44%)
Half13.11 mi0.68 mi6710-8641-1641-17055(Top 25%)780(Top 6%)780(Top 45%)
25K15.53 mi2.42 mi6720-10666-25666-257031(Top 25%)868(Top 7%)868(Top 51%)
30K18.64 mi3.11 mi6677+43698-32698-327099(Top 25%)1046(Top 9%)1046(Top 61%)
20M20.00 mi1.36 mi6602+75702-4702-46980(Top 25%)1136(Top 9%)1136(Top 66%)
21M21.00 mi1.00 mi6579+23719-17719-177356(Top 26%)1451(Top 12%)1451(Top 84%)
35K21.75 mi0.75 mi6554+25732-13732-137301(Top 26%)1402(Top 11%)1402(Top 82%)
23M23.00 mi1.25 mi6482+72730+2730+26672(Top 23%)1247(Top 10%)1247(Top 73%)
24M24.00 mi1.00 mi6413+69732-2732-26331(Top 22%)1189(Top 10%)1189(Top 69%)
40K24.85 mi0.85 mi6360+53741-9741-95722(Top 20%)1019(Top 8%)1019(Top 59%)
25.2M25.20 mi0.35 mi6325+35746-5746-56360(Top 22%)1363(Top 11%)1363(Top 79%)
Finish26.22 mi1.02 mi6258+67749-3749-36593(Top 23%)1479(Top 12%)1479(Top 86%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 23%
×21story building
+97ft-345ft

Overall

6547

Females

629

F40-44

629

5K→10K

3.1 - 6.2 mi

Top 22%
×5story building
+79ft-138ft

Overall

6379

Females

584

F40-44

584

10K→15K

6.2 - 9.3 mi

Top 23%
×3story building
+67ft-78ft

Overall

6547

Females

629

F40-44

629

15K→20K

9.3 - 12.4 mi

Top 24%
×5story building
+106ft-86ft

Overall

6948

Females

762

F40-44

762

20K→Half

12.4 - 13.1 mi

Top 25%
×2story building
+19ft-37ft

Overall

7055

Females

780

F40-44

780

Half→25K

13.1 - 15.5 mi

Top 25%
×4story building
+66ft-88ft

Overall

7031

Females

868

F40-44

868

25K→30K

15.5 - 18.6 mi

Top 25%
×9story building
+181ft-148ft

Overall

7099

Females

1046

F40-44

1046

30K→20M

18.6 - 20.0 mi

Top 25%
×5story building
+64ft-50ft

Overall

6980

Females

1136

F40-44

1136

20M→21M

20.0 - 21.0 mi

Top 26%
×8story building
+106ft-24ft

Overall

7356

Females

1451

F40-44

1451

21M→35K

21.0 - 21.8 mi

Top 26%
×7story building
+17ft-86ft

Overall

7301

Females

1402

F40-44

1402

35K→23M

21.8 - 23.0 mi

Top 23%
×5story building
+23ft-63ft

Overall

6672

Females

1247

F40-44

1247

23M→24M

23.0 - 24.0 mi

Top 22%
×6story building
+12ft-82ft

Overall

6331

Females

1189

F40-44

1189

24M→40K

24.0 - 24.9 mi

Top 20%
×1story
+6ft-20ft

Overall

5722

Females

1019

F40-44

1019

40K→25.2M

24.9 - 25.2 mi

Top 22%
×1story
+13ft-16ft

Overall

6360

Females

1363

F40-44

1363

25.2M→Finish

25.2 - 26.2 mi

Top 23%
×2story building
+22ft-21ft

Overall

6593

Females

1479

F40-44

1479

Passing Analysis

Category:
Athletes Passed
1664
Passed By
1012
Net Change
+652
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6910
5K → 10K34382+261#6910#6649
10K → 15K191117+74#6649#6575
15K → 20K89216-127#6575#6702
20K → Half2230-8#6702#6710
Half → 25K126136-10#6710#6720
25K → 30K195152+43#6720#6677
30K → 20M12348+75#6677#6602
20M → 21M8461+23#6602#6579
21M → 35K6237+25#6579#6554
35K → 23M11947+72#6554#6482
23M → 24M9122+69#6482#6413
24M → 40K8128+53#6413#6360
40K → 25.2M4510+35#6360#6325
25.2M → Finish9326+67#6325#6258
TOTALS16641012+652
📊

Passing Visuals

Category:
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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