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BOSTON MARATHON 2025

Chung Ha Hui

Bib: 6654•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 18%
Gender (Male)
#0 / 16105
Top 29%
Masters (Masters Men)
#0 / 10463
Top 15%
Division (M40-44)
#0 / 2247
Top 37%
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
6:39/mi
20:39
↑ 97↓ 3451.5%
10K· 6.21 mi
6:43/mi
41:31
↑ 79↓ 1380.4%
15K· 9.32 mi
6:42/mi
1:02:19
↑ 67↓ 78
20K· 12.43 mi
6:52/mi
1:23:40
↑ 106↓ 860.1%
Half· 13.11 mi
6:45/mi
1:28:16
↑ 19↓ 370.5%
25K· 15.53 mi
6:51/mi
1:44:52
↑ 66↓ 880.2%
30K· 18.64 mi
7:03/mi
2:06:45
↑ 181↓ 1480.2%
20M
7:07/mi
2:16:25
↑ 64↓ 500.2%
21M
7:31/mi
2:23:56
↑ 106↓ 241.6%
35K· 21.75 mi
7:01/mi
2:29:11
↑ 17↓ 861.7%
23M
7:11/mi
2:38:11
↑ 23↓ 630.6%
24M
7:10/mi
2:45:21
↓ 821.3%
40K· 24.85 mi
7:24/mi
2:51:41
↓ 200.3%
25.2M
8:10/mi
2:54:30
↑ 13↓ 160.2%
Finish· 26.22 mi
7:05/mi
3:01:43
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:28:16
Pace6:44 /mi
2nd Half
Distance13.11 mi
Time1:33:27
Pace7:08 /mi
📊Positive Split: 5.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:27:1220:396:3920:39
6:39
-
10K
6.21 mi10:48:0441:316:4120:52
6:43
+0:04
15K
9.32 mi11:08:521:02:196:4120:48
6:42
-0:01
20K
12.43 mi11:30:131:23:406:4421:21
6:52
+0:10
Half
13.11 mi11:34:491:28:166:444:36
6:45
-0:07
25K
15.53 mi11:51:251:44:526:4516:36
6:51
+0:06
30K
18.64 mi12:13:182:06:456:4821:53
7:03
+0:12
20M
20.00 mi12:22:582:16:256:499:40
7:07
+0:04
21M
21.00 mi12:30:292:23:566:517:31
7:31
+0:24
35K
21.75 mi12:35:442:29:116:525:15
7:01
-0:30
23M
23.00 mi12:44:442:38:116:539:00
7:11
+0:10
24M
24.00 mi12:51:542:45:216:537:10
7:10
-0:01
40K
24.85 mi12:58:142:51:416:546:20
7:24
+0:14
25.2M
25.20 mi13:01:032:54:306:552:49
8:10
+0:46
Finish
26.22 mi13:08:163:01:436:567:13
7:05
-1:05

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

6:39 /mi

Average Pace

6:56 /mi

Slowest Pace

8:10 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:23:31

46% of race

Time at Steady Pace

1:21:32

45% of race

Time at Slower Pace

16:40

9% of race

Average Pace: 6:56 /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 mi10:27:1220:396:3920:39
6:39
#4986
10K
6.21 mi10:48:0441:316:4120:52
6:43
#5198
15K
9.32 mi11:08:521:02:196:4120:48
6:42
#5113
20K
12.43 mi11:30:131:23:406:4421:21
6:52
#5292
Half
13.11 mi11:34:491:28:166:444:36
6:45
#5302
25K
15.53 mi11:51:251:44:526:4516:36
6:51
#5279
30K
18.64 mi12:13:182:06:456:4821:53
7:03
#5154
20M
20.00 mi12:22:582:16:256:499:40
7:07
#5108
21M
21.00 mi12:30:292:23:566:517:31
7:31
#5047
35K
21.75 mi12:35:442:29:116:525:15
7:01
#5062
23M
23.00 mi12:44:442:38:116:539:00
7:11
#5031
24M
24.00 mi12:51:542:45:216:537:10
7:10
#5047
40K
24.85 mi12:58:142:51:416:546:20
7:24
#5061
25.2M
25.20 mi13:01:032:54:306:552:49
8:10
#5063
Finish
26.22 mi13:08:163:01:436:567:13
7:05
#5055
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi4986466046605022(Top 18%)4667(Top 29%)4667(Top 208%)
10K6.21 mi3.10 mi5198-2124834-1744834-1745477(Top 19%)5052(Top 31%)5052(Top 225%)
15K9.32 mi3.11 mi5113+854760+744760+745022(Top 18%)4667(Top 29%)4667(Top 208%)
20K12.43 mi3.11 mi5292-1794900-1404900-1405945(Top 21%)5388(Top 33%)5388(Top 240%)
Half13.11 mi0.68 mi5302-104907-74907-75580(Top 20%)5100(Top 32%)5100(Top 227%)
25K15.53 mi2.42 mi5279+234872+354872+355234(Top 18%)4796(Top 30%)4796(Top 213%)
30K18.64 mi3.11 mi5154+1254743+1294743+1294958(Top 17%)4503(Top 28%)4503(Top 200%)
20M20.00 mi1.36 mi5108+464697+464697+464731(Top 17%)4272(Top 27%)4272(Top 190%)
21M21.00 mi1.00 mi5047+614642+554642+554674(Top 16%)4131(Top 26%)4131(Top 184%)
35K21.75 mi0.75 mi5062-154646-44646-45414(Top 19%)4654(Top 29%)4654(Top 207%)
23M23.00 mi1.25 mi5031+314611+354611+354783(Top 17%)4159(Top 26%)4159(Top 185%)
24M24.00 mi1.00 mi5047-164613-24613-25584(Top 20%)4647(Top 29%)4647(Top 207%)
40K24.85 mi0.85 mi5061-144615-24615-26202(Top 22%)4962(Top 31%)4962(Top 221%)
25.2M25.20 mi0.35 mi5063-24611+44611+46773(Top 24%)5192(Top 32%)5192(Top 231%)
Finish26.22 mi1.02 mi5055+84592+194592+196226(Top 22%)4869(Top 30%)4869(Top 217%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 18%
×21story building
+97ft-345ft

Overall

5022

Males

4667

M40-44

4667

5K→10K

3.1 - 6.2 mi

Top 19%
×5story building
+79ft-138ft

Overall

5477

Males

5052

M40-44

5052

10K→15K

6.2 - 9.3 mi

Top 18%
×3story building
+67ft-78ft

Overall

5022

Males

4667

M40-44

4667

15K→20K

9.3 - 12.4 mi

Top 21%
×5story building
+106ft-86ft

Overall

5945

Males

5388

M40-44

5388

20K→Half

12.4 - 13.1 mi

Top 20%
×2story building
+19ft-37ft

Overall

5580

Males

5100

M40-44

5100

Half→25K

13.1 - 15.5 mi

Top 18%
×4story building
+66ft-88ft

Overall

5234

Males

4796

M40-44

4796

25K→30K

15.5 - 18.6 mi

Top 17%
×9story building
+181ft-148ft

Overall

4958

Males

4503

M40-44

4503

30K→20M

18.6 - 20.0 mi

Top 17%
×5story building
+64ft-50ft

Overall

4731

Males

4272

M40-44

4272

20M→21M

20.0 - 21.0 mi

Top 16%
×8story building
+106ft-24ft

Overall

4674

Males

4131

M40-44

4131

21M→35K

21.0 - 21.8 mi

Top 19%
×7story building
+17ft-86ft

Overall

5414

Males

4654

M40-44

4654

35K→23M

21.8 - 23.0 mi

Top 17%
×5story building
+23ft-63ft

Overall

4783

Males

4159

M40-44

4159

23M→24M

23.0 - 24.0 mi

Top 20%
×6story building
+12ft-82ft

Overall

5584

Males

4647

M40-44

4647

24M→40K

24.0 - 24.9 mi

Top 22%
×1story
+6ft-20ft

Overall

6202

Males

4962

M40-44

4962

40K→25.2M

24.9 - 25.2 mi

Top 24%
×1story
+13ft-16ft

Overall

6773

Males

5192

M40-44

5192

25.2M→Finish

25.2 - 26.2 mi

Top 22%
×2story building
+22ft-21ft

Overall

6226

Males

4869

M40-44

4869

Passing Analysis

Category:
Athletes Passed
1229
Passed By
1298
Net Change
-69
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4986
5K → 10K95307-212#4986#5198
10K → 15K188103+85#5198#5113
15K → 20K74253-179#5113#5292
20K → Half2535-10#5292#5302
Half → 25K123100+23#5302#5279
25K → 30K22499+125#5279#5154
30K → 20M9145+46#5154#5108
20M → 21M10241+61#5108#5047
21M → 35K5065-15#5047#5062
35K → 23M9867+31#5062#5031
23M → 24M5167-16#5031#5047
24M → 40K4559-14#5047#5061
40K → 25.2M2123-2#5061#5063
25.2M → Finish4234+8#5063#5055
TOTALS12291298-69
📊

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