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BOSTON MARATHON 2025

Suk Nga Fu

Bib: 23639•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Top 41%
Division (F50-54)
#0 / 1303
Top 36%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:36
Rank: #15907
Start → 5K
24:36 | 7:55/mi
10K· 6.21 mi
49:15
Rank: #15922 (-15)
5K → 10K
24:39 | 7:56/mi
15K· 9.32 mi
1:14:15
Rank: #16064 (-142)
10K → 15K
25:00 | 8:03/mi
20K· 12.43 mi
1:39:46
Rank: #16154 (-90)
15K → 20K
25:31 | 8:13/mi
Half· 13.11 mi
1:45:16
Rank: #16173 (-19)
20K → Half
5:30 | 8:04/mi
25K· 15.53 mi
2:05:58
Rank: #16379 (-206)
Half → 25K
20:42 | 8:32/mi
30K· 18.64 mi
2:34:14
Rank: #16685 (-306)
25K → 30K
28:16 | 9:06/mi
20M
2:46:49
Rank: #16771 (-86)
30K → 20M
12:35 | 9:16/mi
21M
2:57:09
Rank: #16923 (-152)
20M → 21M
10:20 | 10:20/mi
35K· 21.75 mi
3:03:45
Rank: #16931 (-8)
21M → 35K
6:36 | 8:49/mi
23M
3:15:30
Rank: #17014 (-83)
35K → 23M
11:45 | 9:23/mi
24M
3:24:50
Rank: #17134 (-120)
23M → 24M
9:20 | 9:20/mi
40K· 24.85 mi
3:32:58
Rank: #17202 (-68)
24M → 40K
8:08 | 9:31/mi
25.2M
3:36:44
Rank: #17278 (-76)
40K → 25.2M
3:46 | 10:55/mi
Finish· 26.22 mi
3:46:36
Rank: #17516 (-238)
25.2M → Finish
9:52 | 9:41/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:45:16
Pace8:02 /mi
2nd Half
Distance13.11 mi
Time2:01:20
Pace9:15 /mi
📊Positive Split: 15.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:23:0124:367:5524:36
7:55
-
10K
6.21 mi11:47:4049:157:5624:39
7:56
+0:01
15K
9.32 mi12:12:401:14:157:5825:00
8:03
+0:07
20K
12.43 mi12:38:111:39:468:0225:31
8:13
+0:10
Half
13.11 mi12:43:411:45:168:025:30
8:04
-0:09
25K
15.53 mi13:04:232:05:588:0720:42
8:32
+0:28
30K
18.64 mi13:32:392:34:148:1628:16
9:06
+0:34
20M
20.00 mi13:45:142:46:498:2012:35
9:16
+0:10
21M
21.00 mi13:55:342:57:098:2610:20
10:20
+1:04
35K
21.75 mi14:02:103:03:458:276:36
8:49
-1:31
23M
23.00 mi14:13:553:15:308:3011:45
9:23
+0:34
24M
24.00 mi14:23:153:24:508:329:20
9:20
-0:03
40K
24.85 mi14:31:233:32:588:348:08
9:31
+0:11
25.2M
25.20 mi14:35:093:36:448:363:46
10:55
+1:24
Finish
26.22 mi14:45:013:46:368:399:52
9:41
-1:14

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

7:55 /mi

Average Pace

8:39 /mi

Slowest Pace

10:55 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:05:58

56% of race

Time at Steady Pace

1:16:40

34% of race

Time at Slower Pace

23:58

11% of race

Average Pace: 8:39 /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 mi11:23:0124:367:5524:36
7:55
#15907
10K
6.21 mi11:47:4049:157:5624:39
7:56
#15922
15K
9.32 mi12:12:401:14:157:5825:00
8:03
#16064
20K
12.43 mi12:38:111:39:468:0225:31
8:13
#16154
Half
13.11 mi12:43:411:45:168:025:30
8:04
#16173
25K
15.53 mi13:04:232:05:588:0720:42
8:32
#16379
30K
18.64 mi13:32:392:34:148:1628:16
9:06
#16685
20M
20.00 mi13:45:142:46:498:2012:35
9:16
#16771
21M
21.00 mi13:55:342:57:098:2610:20
10:20
#16923
35K
21.75 mi14:02:103:03:458:276:36
8:49
#16931
23M
23.00 mi14:13:553:15:308:3011:45
9:23
#17014
24M
24.00 mi14:23:153:24:508:329:20
9:20
#17134
40K
24.85 mi14:31:233:32:588:348:08
9:31
#17202
25.2M
25.20 mi14:35:093:36:448:363:46
10:55
#17278
Finish
26.22 mi14:45:013:46:368:399:52
9:41
#17516
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi159075091509116400(Top 58%)5381(Top 44%)5381(Top 413%)
10K6.21 mi3.10 mi15922-155091509115965(Top 56%)5107(Top 42%)5107(Top 392%)
15K9.32 mi3.11 mi16064-1425179-885179-8816400(Top 58%)5381(Top 44%)5381(Top 413%)
20K12.43 mi3.11 mi16154-905245-665245-6616400(Top 58%)5442(Top 45%)5442(Top 418%)
Half13.11 mi0.68 mi16173-195262-175262-1716449(Top 58%)5454(Top 45%)5454(Top 419%)
25K15.53 mi2.42 mi16379-2065391-1295391-12917423(Top 61%)6098(Top 50%)6098(Top 468%)
30K18.64 mi3.11 mi16685-3065628-2375628-23718178(Top 64%)6679(Top 55%)6679(Top 513%)
20M20.00 mi1.36 mi16771-865702-745702-7418103(Top 64%)6772(Top 55%)6772(Top 520%)
21M21.00 mi1.00 mi16923-1525828-1265828-12619494(Top 69%)7611(Top 62%)7611(Top 584%)
35K21.75 mi0.75 mi16931-85857-295857-2917391(Top 61%)6578(Top 54%)6578(Top 505%)
23M23.00 mi1.25 mi17014-835942-855942-8518179(Top 64%)7069(Top 58%)7069(Top 543%)
24M24.00 mi1.00 mi17134-1206031-896031-8918968(Top 67%)7523(Top 62%)7523(Top 577%)
40K24.85 mi0.85 mi17202-686105-746105-7418762(Top 66%)7500(Top 61%)7500(Top 576%)
25.2M25.20 mi0.35 mi17278-766158-536158-5320403(Top 72%)8351(Top 68%)8351(Top 641%)
Finish26.22 mi1.02 mi17516-2386322-1646322-16421858(Top 77%)9083(Top 74%)9083(Top 697%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 58%
×21stories
+97ft-345ft

Overall

16400

Females

5381

F50-54

5381

5K→10K

3.1 - 6.2 mi

Top 56%
×5stories
+79ft-138ft

Overall

15965

Females

5107

F50-54

5107

10K→15K

6.2 - 9.3 mi

Top 58%
×3stories
+67ft-78ft

Overall

16400

Females

5381

F50-54

5381

15K→20K

9.3 - 12.4 mi

Top 58%
×5stories
+106ft-86ft

Overall

16400

Females

5442

F50-54

5442

20K→Half

12.4 - 13.1 mi

Top 58%
×2stories
+19ft-37ft

Overall

16449

Females

5454

F50-54

5454

Half→25K

13.1 - 15.5 mi

Top 61%
×4stories
+66ft-88ft

Overall

17423

Females

6098

F50-54

6098

25K→30K

15.5 - 18.6 mi

Top 64%
×9stories
+181ft-148ft

Overall

18178

Females

6679

F50-54

6679

30K→20M

18.6 - 20.0 mi

Top 64%
×5stories
+64ft-50ft

Overall

18103

Females

6772

F50-54

6772

20M→21M

20.0 - 21.0 mi

Top 69%
×8stories
+106ft-24ft

Overall

19494

Females

7611

F50-54

7611

21M→35K

21.0 - 21.8 mi

Top 61%
×7stories
+17ft-86ft

Overall

17391

Females

6578

F50-54

6578

35K→23M

21.8 - 23.0 mi

Top 64%
×5stories
+23ft-63ft

Overall

18179

Females

7069

F50-54

7069

23M→24M

23.0 - 24.0 mi

Top 67%
×6stories
+12ft-82ft

Overall

18968

Females

7523

F50-54

7523

24M→40K

24.0 - 24.9 mi

Top 66%
×1story
+6ft-20ft

Overall

18762

Females

7500

F50-54

7500

40K→25.2M

24.9 - 25.2 mi

Top 72%
×1story
+13ft-16ft

Overall

20403

Females

8351

F50-54

8351

25.2M→Finish

25.2 - 26.2 mi

Top 77%
×2stories
+22ft-21ft

Overall

21858

Females

9083

F50-54

9083

Passing Analysis

Category:
Athletes Passed
1347
Passed By
2956
Net Change
-1609
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15907
5K → 10K313328-15#15907#15922
10K → 15K154296-142#15922#16064
15K → 20K184274-90#16064#16154
20K → Half2342-19#16154#16173
Half → 25K102308-206#16173#16379
25K → 30K134440-306#16379#16685
30K → 20M78164-86#16685#16771
20M → 21M73225-152#16771#16923
21M → 35K6270-8#16923#16931
35K → 23M91174-83#16931#17014
23M → 24M48168-120#17014#17134
24M → 40K48116-68#17134#17202
40K → 25.2M1995-76#17202#17278
25.2M → Finish18256-238#17278#17516
TOTALS13472956-1609
📊

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