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BOSTON MARATHON 2025

Chin Pang Cheung

Bib: 11753•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 29%
Gender (Male)
#0 / 16105
Top 43%
Masters (Masters Men)
#0 / 10463
Top 30%
Division (M45-49)
#0 / 2386
Top 43%
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
6:52/mi
21:20
↑ 97↓ 3451.5%
10K· 6.21 mi
6:46/mi
42:21
↑ 79↓ 1380.4%
15K· 9.32 mi
6:49/mi
1:03:33
↑ 67↓ 78
20K· 12.43 mi
6:53/mi
1:24:55
↑ 106↓ 860.1%
Half· 13.11 mi
6:47/mi
1:29:33
↑ 19↓ 370.5%
25K· 15.53 mi
6:58/mi
1:46:27
↑ 66↓ 880.2%
30K· 18.64 mi
7:31/mi
2:09:48
↑ 181↓ 1480.2%
20M
7:52/mi
2:20:29
↑ 64↓ 500.2%
21M
9:01/mi
2:29:30
↑ 106↓ 241.6%
35K· 21.75 mi
8:07/mi
2:35:34
↑ 17↓ 861.7%
23M
9:06/mi
2:46:58
↑ 23↓ 630.6%
24M
8:21/mi
2:55:19
↓ 821.3%
40K· 24.85 mi
8:23/mi
3:02:29
↓ 200.3%
25.2M
9:17/mi
3:05:41
↑ 13↓ 160.2%
Finish· 26.22 mi
8:31/mi
3:14:22
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:29:33
Pace6:50 /mi
2nd Half
Distance13.11 mi
Time1:44:49
Pace8:00 /mi
📊Positive Split: 17.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:47:3821:206:5221:20
6:52
-
10K
6.21 mi11:08:3942:216:4921:01
6:46
-0:06
15K
9.32 mi11:29:511:03:336:4921:12
6:49
+0:03
20K
12.43 mi11:51:131:24:556:5021:22
6:53
+0:04
Half
13.11 mi11:55:511:29:336:504:38
6:47
-0:06
25K
15.53 mi12:12:451:46:276:5116:54
6:58
+0:11
30K
18.64 mi12:36:062:09:486:5823:21
7:31
+0:33
20M
20.00 mi12:46:472:20:297:0110:41
7:52
+0:21
21M
21.00 mi12:55:482:29:307:079:01
9:01
+1:09
35K
21.75 mi13:01:522:35:347:096:04
8:07
-0:54
23M
23.00 mi13:13:162:46:587:1611:24
9:06
+0:59
24M
24.00 mi13:21:372:55:197:188:21
8:21
-0:45
40K
24.85 mi13:28:473:02:297:217:10
8:23
+0:02
25.2M
25.20 mi13:31:593:05:417:223:12
9:17
+0:54
Finish
26.22 mi13:40:403:14:227:258:41
8:31
-0:46

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

6:46 /mi

Average Pace

7:25 /mi

Slowest Pace

9:17 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:46:27

55% of race

Time at Steady Pace

40:06

21% of race

Time at Slower Pace

47:49

25% of race

Average Pace: 7:25 /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 mi10:47:3821:206:5221:20
6:52
#6821
10K
6.21 mi11:08:3942:216:4921:01
6:46
#6459
15K
9.32 mi11:29:511:03:336:4921:12
6:49
#6383
20K
12.43 mi11:51:131:24:556:5021:22
6:53
#6255
Half
13.11 mi11:55:511:29:336:504:38
6:47
#6240
25K
15.53 mi12:12:451:46:276:5116:54
6:58
#6189
30K
18.64 mi12:36:062:09:486:5823:21
7:31
#6421
20M
20.00 mi12:46:472:20:297:0110:41
7:52
#6533
21M
21.00 mi12:55:482:29:307:079:01
9:01
#6819
35K
21.75 mi13:01:522:35:347:096:04
8:07
#7024
23M
23.00 mi13:13:162:46:587:1611:24
9:06
#7528
24M
24.00 mi13:21:372:55:197:188:21
8:21
#7756
40K
24.85 mi13:28:473:02:297:217:10
8:23
#7916
25.2M
25.20 mi13:31:593:05:417:223:12
9:17
#8000
Finish
26.22 mi13:40:403:14:227:258:41
8:31
#8362
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi6821617261726336(Top 22%)5737(Top 36%)5737(Top 240%)
10K6.21 mi3.10 mi6459+3625887+2855887+2856013(Top 21%)5499(Top 34%)5499(Top 230%)
15K9.32 mi3.11 mi6383+765813+745813+746336(Top 22%)5737(Top 36%)5737(Top 240%)
20K12.43 mi3.11 mi6255+1285684+1295684+1296031(Top 21%)5464(Top 34%)5464(Top 229%)
Half13.11 mi0.68 mi6240+155671+135671+136128(Top 22%)5549(Top 34%)5549(Top 233%)
25K15.53 mi2.42 mi6189+515608+635608+636125(Top 22%)5497(Top 34%)5497(Top 230%)
30K18.64 mi3.11 mi6421-2325771-1635771-1637852(Top 28%)6498(Top 40%)6498(Top 272%)
20M20.00 mi1.36 mi6533-1125833-625833-629423(Top 33%)7214(Top 45%)7214(Top 302%)
21M21.00 mi1.00 mi6819-2866024-1916024-19113567(Top 48%)9123(Top 57%)9123(Top 382%)
35K21.75 mi0.75 mi7024-2056155-1316155-13112933(Top 46%)8757(Top 54%)8757(Top 367%)
23M23.00 mi1.25 mi7528-5046443-2886443-28816811(Top 59%)10423(Top 65%)10423(Top 437%)
24M24.00 mi1.00 mi7756-2286555-1126555-11213532(Top 48%)8904(Top 55%)8904(Top 373%)
40K24.85 mi0.85 mi7916-1606621-666621-6612629(Top 44%)8335(Top 52%)8335(Top 349%)
25.2M25.20 mi0.35 mi8000-846659-386659-3813261(Top 47%)8567(Top 53%)8567(Top 359%)
Finish26.22 mi1.02 mi8362-3626849-1906849-19016313(Top 57%)10062(Top 62%)10062(Top 422%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 22%
×21story building
+97ft-345ft

Overall

6336

Males

5737

M45-49

5737

5K→10K

3.1 - 6.2 mi

Top 21%
×5story building
+79ft-138ft

Overall

6013

Males

5499

M45-49

5499

10K→15K

6.2 - 9.3 mi

Top 22%
×3story building
+67ft-78ft

Overall

6336

Males

5737

M45-49

5737

15K→20K

9.3 - 12.4 mi

Top 21%
×5story building
+106ft-86ft

Overall

6031

Males

5464

M45-49

5464

20K→Half

12.4 - 13.1 mi

Top 22%
×2story building
+19ft-37ft

Overall

6128

Males

5549

M45-49

5549

Half→25K

13.1 - 15.5 mi

Top 22%
×4story building
+66ft-88ft

Overall

6125

Males

5497

M45-49

5497

25K→30K

15.5 - 18.6 mi

Top 28%
×9story building
+181ft-148ft

Overall

7852

Males

6498

M45-49

6498

30K→20M

18.6 - 20.0 mi

Top 33%
×5story building
+64ft-50ft

Overall

9423

Males

7214

M45-49

7214

20M→21M

20.0 - 21.0 mi

Top 48%
×8story building
+106ft-24ft

Overall

13567

Males

9123

M45-49

9123

21M→35K

21.0 - 21.8 mi

Top 46%
×7story building
+17ft-86ft

Overall

12933

Males

8757

M45-49

8757

35K→23M

21.8 - 23.0 mi

Top 59%
×5story building
+23ft-63ft

Overall

16811

Males

10423

M45-49

10423

23M→24M

23.0 - 24.0 mi

Top 48%
×6story building
+12ft-82ft

Overall

13532

Males

8904

M45-49

8904

24M→40K

24.0 - 24.9 mi

Top 44%
×1story
+6ft-20ft

Overall

12629

Males

8335

M45-49

8335

40K→25.2M

24.9 - 25.2 mi

Top 47%
×1story
+13ft-16ft

Overall

13261

Males

8567

M45-49

8567

25.2M→Finish

25.2 - 26.2 mi

Top 57%
×2story building
+22ft-21ft

Overall

16313

Males

10062

M45-49

10062

Passing Analysis

Category:
Athletes Passed
1276
Passed By
2817
Net Change
-1541
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6821
5K → 10K41351+362#6821#6459
10K → 15K183107+76#6459#6383
15K → 20K19971+128#6383#6255
20K → Half3621+15#6255#6240
Half → 25K13988+51#6240#6189
25K → 30K109341-232#6189#6421
30K → 20M59171-112#6421#6533
20M → 21M15301-286#6533#6819
21M → 35K17222-205#6819#7024
35K → 23M21525-504#7024#7528
23M → 24M24252-228#7528#7756
24M → 40K35195-160#7756#7916
40K → 25.2M1599-84#7916#8000
25.2M → Finish11373-362#8000#8362
TOTALS12762817-1541
📊

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