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BOSTON MARATHON 2025

Cheyung Chiu

Bib: 14325•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 48%
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M50-54)
#0 / 1996
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
7:46/mi
24:08
↑ 97↓ 3451.5%
10K· 6.21 mi
7:49/mi
48:26
↑ 79↓ 1380.4%
15K· 9.32 mi
7:42/mi
1:12:22
↑ 67↓ 78
20K· 12.43 mi
7:59/mi
1:37:09
↑ 106↓ 860.1%
Half· 13.11 mi
7:50/mi
1:42:30
↑ 19↓ 370.5%
25K· 15.53 mi
8:46/mi
2:03:45
↑ 66↓ 880.2%
30K· 18.64 mi
8:17/mi
2:29:29
↑ 181↓ 1480.2%
20M
8:27/mi
2:40:58
↑ 64↓ 500.2%
21M
9:07/mi
2:50:05
↑ 106↓ 241.6%
35K· 21.75 mi
8:12/mi
2:56:13
↑ 17↓ 861.7%
23M
8:27/mi
3:06:48
↑ 23↓ 630.6%
24M
8:03/mi
3:14:51
↓ 821.3%
40K· 24.85 mi
7:51/mi
3:21:34
↓ 200.3%
25.2M
8:30/mi
3:24:30
↑ 13↓ 160.2%
Finish· 26.22 mi
7:21/mi
3:31:59
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:42:30
Pace7:49 /mi
2nd Half
Distance13.11 mi
Time1:49:29
Pace8:21 /mi
📊Positive Split: 6.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:56:1724:087:4624:08
7:46
-
10K
6.21 mi11:20:3548:267:4824:18
7:49
+0:03
15K
9.32 mi11:44:311:12:227:4623:56
7:42
-0:07
20K
12.43 mi12:09:181:37:097:4924:47
7:59
+0:17
Half
13.11 mi12:14:391:42:307:495:21
7:50
-0:09
25K
15.53 mi12:35:542:03:457:5821:15
8:46
+0:56
30K
18.64 mi13:01:382:29:298:0125:44
8:17
-0:29
20M
20.00 mi13:13:072:40:588:0311:29
8:27
+0:10
21M
21.00 mi13:22:142:50:058:069:07
9:07
+0:40
35K
21.75 mi13:28:222:56:138:066:08
8:12
-0:55
23M
23.00 mi13:38:573:06:488:0710:35
8:27
+0:15
24M
24.00 mi13:47:003:14:518:078:03
8:03
-0:24
40K
24.85 mi13:53:433:21:348:076:43
7:51
-0:12
25.2M
25.20 mi13:56:393:24:308:072:56
8:30
+0:39
Finish
26.22 mi14:04:083:31:598:057:29
7:21
-1:09

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

7:21 /mi

Average Pace

8:05 /mi

Slowest Pace

9:07 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:19:51

38% of race

Time at Steady Pace

51:02

24% of race

Time at Slower Pace

1:21:06

38% of race

Average Pace: 8:05 /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 mi10:56:1724:087:4624:08
7:46
#14504
10K
6.21 mi11:20:3548:267:4824:18
7:49
#14734
15K
9.32 mi11:44:311:12:227:4623:56
7:42
#14324
20K
12.43 mi12:09:181:37:097:4924:47
7:59
#14397
Half
13.11 mi12:14:391:42:307:495:21
7:50
#14388
25K
15.53 mi12:35:542:03:457:5821:15
8:46
#15293
30K
18.64 mi13:01:382:29:298:0125:44
8:17
#14891
20M
20.00 mi13:13:072:40:588:0311:29
8:27
#14730
21M
21.00 mi13:22:142:50:058:069:07
9:07
#14667
35K
21.75 mi13:28:222:56:138:066:08
8:12
#14593
23M
23.00 mi13:38:573:06:488:0710:35
8:27
#14476
24M
24.00 mi13:47:003:14:518:078:03
8:03
#14325
40K
24.85 mi13:53:433:21:348:076:43
7:51
#14109
25.2M
25.20 mi13:56:393:24:308:072:56
8:30
#14009
Finish
26.22 mi14:04:083:31:598:057:29
7:21
#13744
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi14504102421024213523(Top 48%)9737(Top 60%)9737(Top 488%)
10K6.21 mi3.10 mi14734-23010302-6010302-6014998(Top 53%)10419(Top 65%)10419(Top 522%)
15K9.32 mi3.11 mi14324+41010131+17110131+17113523(Top 48%)9737(Top 60%)9737(Top 488%)
20K12.43 mi3.11 mi14397-7310121+1010121+1014738(Top 52%)10195(Top 63%)10195(Top 511%)
Half13.11 mi0.68 mi14388+910115+610115+614543(Top 51%)10124(Top 63%)10124(Top 507%)
25K15.53 mi2.42 mi15293-90510477-36210477-36218733(Top 66%)11846(Top 74%)11846(Top 593%)
30K18.64 mi3.11 mi14891+40210236+24110236+24113369(Top 47%)9296(Top 58%)9296(Top 466%)
20M20.00 mi1.36 mi14730+16110143+9310143+9313458(Top 47%)9195(Top 57%)9195(Top 461%)
21M21.00 mi1.00 mi14667+6310089+5410089+5414175(Top 50%)9412(Top 58%)9412(Top 472%)
35K21.75 mi0.75 mi14593+7410047+4210047+4213583(Top 48%)9076(Top 56%)9076(Top 455%)
23M23.00 mi1.25 mi14476+1179959+889959+8812997(Top 46%)8694(Top 54%)8694(Top 436%)
24M24.00 mi1.00 mi14325+1519862+979862+9711588(Top 41%)7952(Top 49%)7952(Top 398%)
40K24.85 mi0.85 mi14109+2169727+1359727+1359179(Top 32%)6626(Top 41%)6626(Top 332%)
25.2M25.20 mi0.35 mi14009+1009675+529675+528819(Top 31%)6378(Top 40%)6378(Top 320%)
Finish26.22 mi1.02 mi13744+2659521+1549521+1548076(Top 28%)5961(Top 37%)5961(Top 299%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 48%
×21story building
+97ft-345ft

Overall

13523

Males

9737

M50-54

9737

5K→10K

3.1 - 6.2 mi

Top 53%
×5story building
+79ft-138ft

Overall

14998

Males

10419

M50-54

10419

10K→15K

6.2 - 9.3 mi

Top 48%
×3story building
+67ft-78ft

Overall

13523

Males

9737

M50-54

9737

15K→20K

9.3 - 12.4 mi

Top 52%
×5story building
+106ft-86ft

Overall

14738

Males

10195

M50-54

10195

20K→Half

12.4 - 13.1 mi

Top 51%
×2story building
+19ft-37ft

Overall

14543

Males

10124

M50-54

10124

Half→25K

13.1 - 15.5 mi

Top 66%
×4story building
+66ft-88ft

Overall

18733

Males

11846

M50-54

11846

25K→30K

15.5 - 18.6 mi

Top 47%
×9story building
+181ft-148ft

Overall

13369

Males

9296

M50-54

9296

30K→20M

18.6 - 20.0 mi

Top 47%
×5story building
+64ft-50ft

Overall

13458

Males

9195

M50-54

9195

20M→21M

20.0 - 21.0 mi

Top 50%
×8story building
+106ft-24ft

Overall

14175

Males

9412

M50-54

9412

21M→35K

21.0 - 21.8 mi

Top 48%
×7story building
+17ft-86ft

Overall

13583

Males

9076

M50-54

9076

35K→23M

21.8 - 23.0 mi

Top 46%
×5story building
+23ft-63ft

Overall

12997

Males

8694

M50-54

8694

23M→24M

23.0 - 24.0 mi

Top 41%
×6story building
+12ft-82ft

Overall

11588

Males

7952

M50-54

7952

24M→40K

24.0 - 24.9 mi

Top 32%
×1story
+6ft-20ft

Overall

9179

Males

6626

M50-54

6626

40K→25.2M

24.9 - 25.2 mi

Top 31%
×1story
+13ft-16ft

Overall

8819

Males

6378

M50-54

6378

25.2M→Finish

25.2 - 26.2 mi

Top 28%
×2story building
+22ft-21ft

Overall

8076

Males

5961

M50-54

5961

Passing Analysis

Category:
Athletes Passed
2738
Passed By
1978
Net Change
+760
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14504
5K → 10K199429-230#14504#14734
10K → 15K44939+410#14734#14324
15K → 20K190263-73#14324#14397
20K → Half4132+9#14397#14388
Half → 25K34939-905#14388#15293
25K → 30K46563+402#15293#14891
30K → 20M20544+161#14891#14730
20M → 21M13976+63#14730#14667
21M → 35K10834+74#14667#14593
35K → 23M16043+117#14593#14476
23M → 24M1598+151#14476#14325
24M → 40K2193+216#14325#14109
40K → 25.2M1011+100#14109#14009
25.2M → Finish2694+265#14009#13744
TOTALS27381978+760
📊

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