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BOSTON MARATHON 2025

Wan Yiu Chan

Bib: 23387•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F50-54)
#0 / 1303
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
27:12
Rank: #21280
Start → 5K
27:12 | 8:45/mi
10K· 6.21 mi
54:28
Rank: #21261 (+19)
5K → 10K
27:16 | 8:47/mi
15K· 9.32 mi
1:23:16
Rank: #21989 (-728)
10K → 15K
28:48 | 9:16/mi
20K· 12.43 mi
1:51:18
Rank: #21736 (+253)
15K → 20K
28:02 | 9:01/mi
Half· 13.11 mi
1:57:26
Rank: #21732 (+4)
20K → Half
6:08 | 8:59/mi
25K· 15.53 mi
2:19:38
Rank: #21506 (+226)
Half → 25K
22:12 | 9:09/mi
30K· 18.64 mi
2:49:31
Rank: #21304 (+202)
25K → 30K
29:53 | 9:37/mi
20M
3:02:28
Rank: #21132 (+172)
30K → 20M
12:57 | 9:32/mi
21M
3:13:12
Rank: #21119 (+13)
20M → 21M
10:44 | 10:44/mi
35K· 21.75 mi
3:20:09
Rank: #21042 (+77)
21M → 35K
6:57 | 9:17/mi
23M
3:31:59
Rank: #20904 (+138)
35K → 23M
11:50 | 9:27/mi
24M
3:41:03
Rank: #20777 (+127)
23M → 24M
9:04 | 9:04/mi
40K· 24.85 mi
3:48:53
Rank: #20659 (+118)
24M → 40K
7:50 | 9:10/mi
25.2M
3:52:28
Rank: #20634 (+25)
40K → 25.2M
3:35 | 10:23/mi
Finish· 26.22 mi
4:03:03
Rank: #20783 (-149)
25.2M → Finish
10:35 | 10:23/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:57:26
Pace8:57 /mi
2nd Half
Distance13.11 mi
Time2:05:37
Pace9:35 /mi
📊Positive Split: 7.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:23:3827:128:4527:12
8:45
-
10K
6.21 mi11:50:5454:288:4627:16
8:47
+0:02
15K
9.32 mi12:19:421:23:168:5628:48
9:16
+0:29
20K
12.43 mi12:47:441:51:188:5728:02
9:01
-0:15
Half
13.11 mi12:53:521:57:268:576:08
8:59
-0:02
25K
15.53 mi13:16:042:19:388:5922:12
9:09
+0:10
30K
18.64 mi13:45:572:49:319:0629:53
9:37
+0:28
20M
20.00 mi13:58:543:02:289:0712:57
9:32
-0:05
21M
21.00 mi14:09:383:13:129:1210:44
10:44
+1:12
35K
21.75 mi14:16:353:20:099:126:57
9:17
-1:27
23M
23.00 mi14:28:253:31:599:1311:50
9:27
+0:10
24M
24.00 mi14:37:293:41:039:139:04
9:04
-0:23
40K
24.85 mi14:45:193:48:539:137:50
9:10
+0:06
25.2M
25.20 mi14:48:543:52:289:133:35
10:23
+1:13
Finish
26.22 mi14:59:294:03:039:1710:35
10:23
0:00

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

8:45 /mi

Average Pace

9:17 /mi

Slowest Pace

10:44 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

54:28

22% of race

Time at Steady Pace

2:13:48

55% of race

Time at Slower Pace

54:47

23% of race

Average Pace: 9:16 /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 mi11:23:3827:128:4527:12
8:45
#21280
10K
6.21 mi11:50:5454:288:4627:16
8:47
#21261
15K
9.32 mi12:19:421:23:168:5628:48
9:16
#21989
20K
12.43 mi12:47:441:51:188:5728:02
9:01
#21736
Half
13.11 mi12:53:521:57:268:576:08
8:59
#21732
25K
15.53 mi13:16:042:19:388:5922:12
9:09
#21506
30K
18.64 mi13:45:572:49:319:0629:53
9:37
#21304
20M
20.00 mi13:58:543:02:289:0712:57
9:32
#21132
21M
21.00 mi14:09:383:13:129:1210:44
10:44
#21119
35K
21.75 mi14:16:353:20:099:126:57
9:17
#21042
23M
23.00 mi14:28:253:31:599:1311:50
9:27
#20904
24M
24.00 mi14:37:293:41:039:139:04
9:04
#20777
40K
24.85 mi14:45:193:48:539:137:50
9:10
#20659
25.2M
25.20 mi14:48:543:52:289:133:35
10:23
#20634
Finish
26.22 mi14:59:294:03:039:1710:35
10:23
#20783
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi212808233823323111(Top 81%)9156(Top 75%)9156(Top 703%)
10K6.21 mi3.10 mi21261+198192+418192+4121298(Top 75%)8195(Top 67%)8195(Top 629%)
15K9.32 mi3.11 mi21989-7288597-4058597-40523111(Top 81%)9156(Top 75%)9156(Top 703%)
20K12.43 mi3.11 mi21736+2538456+1418456+14121100(Top 74%)8114(Top 66%)8114(Top 623%)
Half13.11 mi0.68 mi21732+48455+18455+121804(Top 77%)8476(Top 69%)8476(Top 650%)
25K15.53 mi2.42 mi21506+2268325+1308325+13020601(Top 73%)7875(Top 64%)7875(Top 604%)
30K18.64 mi3.11 mi21304+2028253+728253+7220429(Top 72%)7892(Top 65%)7892(Top 606%)
20M20.00 mi1.36 mi21132+1728184+698184+6919334(Top 68%)7445(Top 61%)7445(Top 571%)
21M21.00 mi1.00 mi21119+138184818420689(Top 73%)8288(Top 68%)8288(Top 636%)
35K21.75 mi0.75 mi21042+778159+258159+2519559(Top 69%)7751(Top 63%)7751(Top 595%)
23M23.00 mi1.25 mi20904+1388113+468113+4618499(Top 65%)7241(Top 59%)7241(Top 556%)
24M24.00 mi1.00 mi20777+1278054+598054+5917745(Top 62%)6911(Top 57%)6911(Top 530%)
40K24.85 mi0.85 mi20659+1188009+458009+4517217(Top 61%)6712(Top 55%)6712(Top 515%)
25.2M25.20 mi0.35 mi20634+258004+58004+518665(Top 66%)7476(Top 61%)7476(Top 574%)
Finish26.22 mi1.02 mi20783-1498106-1028106-10224006(Top 85%)10171(Top 83%)10171(Top 781%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 81%
×21stories
+97ft-345ft

Overall

23111

Females

9156

F50-54

9156

5K→10K

3.1 - 6.2 mi

Top 75%
×5stories
+79ft-138ft

Overall

21298

Females

8195

F50-54

8195

10K→15K

6.2 - 9.3 mi

Top 81%
×3stories
+67ft-78ft

Overall

23111

Females

9156

F50-54

9156

15K→20K

9.3 - 12.4 mi

Top 74%
×5stories
+106ft-86ft

Overall

21100

Females

8114

F50-54

8114

20K→Half

12.4 - 13.1 mi

Top 77%
×2stories
+19ft-37ft

Overall

21804

Females

8476

F50-54

8476

Half→25K

13.1 - 15.5 mi

Top 73%
×4stories
+66ft-88ft

Overall

20601

Females

7875

F50-54

7875

25K→30K

15.5 - 18.6 mi

Top 72%
×9stories
+181ft-148ft

Overall

20429

Females

7892

F50-54

7892

30K→20M

18.6 - 20.0 mi

Top 68%
×5stories
+64ft-50ft

Overall

19334

Females

7445

F50-54

7445

20M→21M

20.0 - 21.0 mi

Top 73%
×8stories
+106ft-24ft

Overall

20689

Females

8288

F50-54

8288

21M→35K

21.0 - 21.8 mi

Top 69%
×7stories
+17ft-86ft

Overall

19559

Females

7751

F50-54

7751

35K→23M

21.8 - 23.0 mi

Top 65%
×5stories
+23ft-63ft

Overall

18499

Females

7241

F50-54

7241

23M→24M

23.0 - 24.0 mi

Top 62%
×6stories
+12ft-82ft

Overall

17745

Females

6911

F50-54

6911

24M→40K

24.0 - 24.9 mi

Top 61%
×1story
+6ft-20ft

Overall

17217

Females

6712

F50-54

6712

40K→25.2M

24.9 - 25.2 mi

Top 66%
×1story
+13ft-16ft

Overall

18665

Females

7476

F50-54

7476

25.2M→Finish

25.2 - 26.2 mi

Top 85%
×2stories
+22ft-21ft

Overall

24006

Females

10171

F50-54

10171

Passing Analysis

Category:
Athletes Passed
2102
Passed By
1605
Net Change
+497
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21280
5K → 10K286267+19#21280#21261
10K → 15K51779-728#21261#21989
15K → 20K31865+253#21989#21736
20K → Half3935+4#21736#21732
Half → 25K26640+226#21732#21506
25K → 30K28785+202#21506#21304
30K → 20M19119+172#21304#21132
20M → 21M9683+13#21132#21119
21M → 35K10629+77#21119#21042
35K → 23M15517+138#21042#20904
23M → 24M13811+127#20904#20777
24M → 40K12810+118#20777#20659
40K → 25.2M294+25#20659#20634
25.2M → Finish12161-149#20634#20783
TOTALS21021605+497
📊

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