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BOSTON MARATHON 2025

Yiu Chun Hung

Bib: 20625 F HK

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F40-44)
#0 / 1718
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
8:24/mi
26:05
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
8:21/mi
52:01
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
8:27/mi
1:18:17
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
8:49/mi
1:45:42
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
8:52/mi
1:51:45
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
9:06/mi
2:13:49
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
9:37/mi
2:43:41
↑ 181↓ 1480.2%
138 ft elev
20M
9:56/mi
2:57:11
↑ 64↓ 500.2%
148 ft elev
21M
10:29/mi
3:07:40
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
9:37/mi
3:14:52
↑ 17↓ 861.7%
156 ft elev
23M
9:49/mi
3:27:09
↑ 23↓ 630.6%
116 ft elev
24M
9:18/mi
3:36:27
↓ 821.3%
34 ft elev
40K· 24.85 mi
9:28/mi
3:44:33
↓ 200.3%
20 ft elev
25.2M
10:29/mi
3:48:10
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
9:09/mi
3:57:29
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

Half Splits

1st Half· via Half
1:51:458:31 /mi⚡ faster
2nd Half
2:05:449:35 /mi+12.5%
Positive split — 12.5% slower in the second half
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Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:20:0226:058:2426:05
8:24
-
10K
6.21 mi11:45:5852:018:2225:56
8:21
-0:03
15K
9.32 mi12:12:141:18:178:2426:16
8:27
+0:06
20K
12.43 mi12:39:391:45:428:3027:25
8:49
+0:22
Half
13.11 mi12:45:421:51:458:316:03
8:52
+0:03
25K
15.53 mi13:07:462:13:498:3722:04
9:06
+0:14
30K
18.64 mi13:37:382:43:418:4729:52
9:37
+0:31
20M
20.00 mi13:51:082:57:118:5213:30
9:56
+0:19
21M
21.00 mi14:01:373:07:408:5610:29
10:29
+0:33
35K
21.75 mi14:08:493:14:528:587:12
9:37
-0:52
23M
23.00 mi14:21:063:27:099:0012:17
9:49
+0:12
24M
24.00 mi14:30:243:36:279:019:18
9:18
-0:31
40K
24.85 mi14:38:303:44:339:028:06
9:28
+0:10
25.2M
25.20 mi14:42:073:48:109:033:37
10:29
+1:01
Finish
26.22 mi14:51:263:57:299:049:19
9:09
-1:20

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

8:21 /mi

Average Pace

9:04 /mi

Slowest Pace

10:29 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:51:45

47% of race

Time at Steady Pace

1:25:51

36% of race

Time at Slower Pace

39:53

17% of race

Average Pace: 9:03 /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 mi11:20:0226:058:2426:05
8:24
#19297
10K
6.21 mi11:45:5852:018:2225:56
8:21
#19073
15K
9.32 mi12:12:141:18:178:2426:16
8:27
#19026
20K
12.43 mi12:39:391:45:428:3027:25
8:49
#19306
Half
13.11 mi12:45:421:51:458:316:03
8:52
#19422
25K
15.53 mi13:07:462:13:498:3722:04
9:06
#19590
30K
18.64 mi13:37:382:43:418:4729:52
9:37
#19758
20M
20.00 mi13:51:082:57:118:5213:30
9:56
#19879
21M
21.00 mi14:01:373:07:408:5610:29
10:29
#19886
35K
21.75 mi14:08:493:14:528:587:12
9:37
#19932
23M
23.00 mi14:21:063:27:099:0012:17
9:49
#19951
24M
24.00 mi14:30:243:36:279:019:18
9:18
#19887
40K
24.85 mi14:38:303:44:339:028:06
9:28
#19841
25.2M
25.20 mi14:42:073:48:109:033:37
10:29
#19837
Finish
26.22 mi14:51:263:57:299:049:19
9:09
#19835
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi19297708170811907369446944
10K6.21 mi3.10 mi19073+2246946+1356946+1351886968086808
15K9.32 mi3.11 mi19026+476928+186928+181907369446944
20K12.43 mi3.11 mi19306-2807085-1577085-1572008475277527
Half13.11 mi0.68 mi19422-1167147-627147-622124981638163
25K15.53 mi2.42 mi19590-1687250-1037250-1032036977397739
30K18.64 mi3.11 mi19758-1687385-1357385-1352040778807880
20M20.00 mi1.36 mi19879-1217482-977482-972072282038203
21M21.00 mi1.00 mi19886-77506-247506-241997078927892
35K21.75 mi0.75 mi19932-467550-447550-442077783788378
23M23.00 mi1.25 mi19951-197595-457595-451983679627962
24M24.00 mi1.00 mi19887+647588+77588+71883874637463
40K24.85 mi0.85 mi19841+467581+77581+71863274487448
25.2M25.20 mi0.35 mi19837+47577+47577+41899776367636
Finish26.22 mi1.02 mi19835+27591-147591-141972379937993

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 67%
×21story building
+97ft-345ft

Overall

19073

Females

6944

F40-44

6944

5K→10K

3.1 - 6.2 mi

Top 66%
×5story building
+79ft-138ft

Overall

18869

Females

6808

F40-44

6808

10K→15K

6.2 - 9.3 mi

Top 67%
×3story building
+67ft-78ft

Overall

19073

Females

6944

F40-44

6944

15K→20K

9.3 - 12.4 mi

Top 71%
×5story building
+106ft-86ft

Overall

20084

Females

7527

F40-44

7527

20K→Half

12.4 - 13.1 mi

Top 75%
×2story building
+19ft-37ft

Overall

21249

Females

8163

F40-44

8163

Half→25K

13.1 - 15.5 mi

Top 72%
×4story building
+66ft-88ft

Overall

20369

Females

7739

F40-44

7739

25K→30K

15.5 - 18.6 mi

Top 72%
×9story building
+181ft-148ft

Overall

20407

Females

7880

F40-44

7880

30K→20M

18.6 - 20.0 mi

Top 73%
×5story building
+64ft-50ft

Overall

20722

Females

8203

F40-44

8203

20M→21M

20.0 - 21.0 mi

Top 70%
×8story building
+106ft-24ft

Overall

19970

Females

7892

F40-44

7892

21M→35K

21.0 - 21.8 mi

Top 73%
×7story building
+17ft-86ft

Overall

20777

Females

8378

F40-44

8378

35K→23M

21.8 - 23.0 mi

Top 70%
×5story building
+23ft-63ft

Overall

19836

Females

7962

F40-44

7962

23M→24M

23.0 - 24.0 mi

Top 66%
×6story building
+12ft-82ft

Overall

18838

Females

7463

F40-44

7463

24M→40K

24.0 - 24.9 mi

Top 66%
×1story
+6ft-20ft

Overall

18632

Females

7448

F40-44

7448

40K→25.2M

24.9 - 25.2 mi

Top 67%
×1story
+13ft-16ft

Overall

18997

Females

7636

F40-44

7636

25.2M→Finish

25.2 - 26.2 mi

Top 69%
×2story building
+22ft-21ft

Overall

19723

Females

7993

F40-44

7993

Passing Analysis

Category:
Athletes Passed
1559
Passed By
2097
Net Change
-538
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19297
5K → 10K396172+224#19297#19073
10K → 15K218171+47#19073#19026
15K → 20K114394-280#19026#19306
20K → Half9125-116#19306#19422
Half → 25K116284-168#19422#19590
25K → 30K174342-168#19590#19758
30K → 20M63184-121#19758#19879
20M → 21M9299-7#19879#19886
21M → 35K3985-46#19886#19932
35K → 23M7998-19#19932#19951
23M → 24M9733+64#19951#19887
24M → 40K7933+46#19887#19841
40K → 25.2M2723+4#19841#19837
25.2M → Finish5654+2#19837#19835
TOTALS15592097-538

Passing Charts

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