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BOSTON MARATHON 2025

Cheuk Yan Douglas Cheng

Bib: 3554•M

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 21%
Gender (Male)
#0 / 16105
Top 33%
Division (M18-39)
#0 / 5642
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:50
Rank: #5489
Start → 5K
20:50 | 6:42/mi
10K· 6.21 mi
41:30
Rank: #5176 (+313)
5K → 10K
20:40 | 6:39/mi
15K· 9.32 mi
1:02:16
Rank: #5063 (+113)
10K → 15K
20:46 | 6:41/mi
20K· 12.43 mi
1:23:41
Rank: #5309 (-246)
15K → 20K
21:25 | 6:54/mi
Half· 13.11 mi
1:28:11
Rank: #5236 (+73)
20K → Half
4:30 | 6:36/mi
25K· 15.53 mi
1:45:13
Rank: #5493 (-257)
Half → 25K
17:02 | 7:02/mi
30K· 18.64 mi
2:08:25
Rank: #5884 (-391)
25K → 30K
23:12 | 7:28/mi
20M
2:18:36
Rank: #5940 (-56)
30K → 20M
10:11 | 7:30/mi
21M
2:26:22
Rank: #5873 (+67)
20M → 21M
7:46 | 7:46/mi
35K· 21.75 mi
2:31:39
Rank: #5839 (+34)
21M → 35K
5:17 | 7:04/mi
23M
2:41:12
Rank: #5860 (-21)
35K → 23M
9:33 | 7:38/mi
24M
2:48:51
Rank: #5923 (-63)
23M → 24M
7:39 | 7:39/mi
40K· 24.85 mi
2:55:20
Rank: #5912 (+11)
24M → 40K
6:29 | 7:35/mi
25.2M
2:58:12
Rank: #5903 (+9)
40K → 25.2M
2:52 | 8:19/mi
Finish· 26.22 mi
3:06:12
Rank: #6040 (-137)
25.2M → Finish
8:00 | 7:51/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:28:11
Pace6:44 /mi
2nd Half
Distance13.11 mi
Time1:38:01
Pace7:29 /mi
📊Positive Split: 11.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:5220:506:4220:50
6:42
-
10K
6.21 mi10:43:3241:306:4120:40
6:39
-0:03
15K
9.32 mi11:04:181:02:166:4120:46
6:41
+0:02
20K
12.43 mi11:25:431:23:416:4421:25
6:54
+0:13
Half
13.11 mi11:30:131:28:116:444:30
6:36
-0:18
25K
15.53 mi11:47:151:45:136:4617:02
7:02
+0:26
30K
18.64 mi12:10:272:08:256:5323:12
7:28
+0:26
20M
20.00 mi12:20:382:18:366:5610:11
7:30
+0:02
21M
21.00 mi12:28:242:26:226:587:46
7:46
+0:16
35K
21.75 mi12:33:412:31:396:585:17
7:04
-0:42
23M
23.00 mi12:43:142:41:127:019:33
7:38
+0:34
24M
24.00 mi12:50:532:48:517:027:39
7:39
+0:01
40K
24.85 mi12:57:222:55:207:036:29
7:35
-0:04
25.2M
25.20 mi13:00:142:58:127:042:52
8:19
+0:44
Finish
26.22 mi13:08:143:06:127:068:00
7:51
-0:28

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

6:36 /mi

Average Pace

7:06 /mi

Slowest Pace

8:19 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:50:30

59% of race

Time at Steady Pace

57:04

31% of race

Time at Slower Pace

18:38

10% of race

Average Pace: 7:06 /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 mi10:22:5220:506:4220:50
6:42
#5489
10K
6.21 mi10:43:3241:306:4120:40
6:39
#5176
15K
9.32 mi11:04:181:02:166:4120:46
6:41
#5063
20K
12.43 mi11:25:431:23:416:4421:25
6:54
#5309
Half
13.11 mi11:30:131:28:116:444:30
6:36
#5236
25K
15.53 mi11:47:151:45:136:4617:02
7:02
#5493
30K
18.64 mi12:10:272:08:256:5323:12
7:28
#5884
20M
20.00 mi12:20:382:18:366:5610:11
7:30
#5940
21M
21.00 mi12:28:242:26:226:587:46
7:46
#5873
35K
21.75 mi12:33:412:31:396:585:17
7:04
#5839
23M
23.00 mi12:43:142:41:127:019:33
7:38
#5860
24M
24.00 mi12:50:532:48:517:027:39
7:39
#5923
40K
24.85 mi12:57:222:55:207:036:29
7:35
#5912
25.2M
25.20 mi13:00:142:58:127:042:52
8:19
#5903
Finish
26.22 mi13:08:143:06:127:068:00
7:51
#6040
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi5489509150914934(Top 17%)4597(Top 29%)4597(Top 81%)
10K6.21 mi3.10 mi5176+3134816+2754816+2754887(Top 17%)4563(Top 28%)4563(Top 81%)
15K9.32 mi3.11 mi5063+1134715+1014715+1014934(Top 17%)4597(Top 29%)4597(Top 81%)
20K12.43 mi3.11 mi5309-2464914-1994914-1996125(Top 22%)5527(Top 34%)5527(Top 98%)
Half13.11 mi0.68 mi5236+734851+634851+634365(Top 15%)4087(Top 25%)4087(Top 72%)
25K15.53 mi2.42 mi5493-2575048-1975048-1976459(Top 23%)5734(Top 36%)5734(Top 102%)
30K18.64 mi3.11 mi5884-3915350-3025350-3027501(Top 26%)6273(Top 39%)6273(Top 111%)
20M20.00 mi1.36 mi5940-565375-255375-256929(Top 24%)5782(Top 36%)5782(Top 102%)
21M21.00 mi1.00 mi5873+675310+655310+655978(Top 21%)5049(Top 31%)5049(Top 89%)
35K21.75 mi0.75 mi5839+345276+345276+345737(Top 20%)4873(Top 30%)4873(Top 86%)
23M23.00 mi1.25 mi5860-215272+45272+47394(Top 26%)5797(Top 36%)5797(Top 103%)
24M24.00 mi1.00 mi5923-635303-315303-318721(Top 31%)6488(Top 40%)6488(Top 115%)
40K24.85 mi0.85 mi5912+115281+225281+227262(Top 26%)5568(Top 35%)5568(Top 99%)
25.2M25.20 mi0.35 mi5903+95266+155266+157621(Top 27%)5680(Top 35%)5680(Top 101%)
Finish26.22 mi1.02 mi6040-1375347-815347-8111751(Top 41%)7890(Top 49%)7890(Top 140%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 17%
×21stories
+97ft-345ft

Overall

4934

Males

4597

M18-39

4597

5K→10K

3.1 - 6.2 mi

Top 17%
×5stories
+79ft-138ft

Overall

4887

Males

4563

M18-39

4563

10K→15K

6.2 - 9.3 mi

Top 17%
×3stories
+67ft-78ft

Overall

4934

Males

4597

M18-39

4597

15K→20K

9.3 - 12.4 mi

Top 22%
×5stories
+106ft-86ft

Overall

6125

Males

5527

M18-39

5527

20K→Half

12.4 - 13.1 mi

Top 15%
×2stories
+19ft-37ft

Overall

4365

Males

4087

M18-39

4087

Half→25K

13.1 - 15.5 mi

Top 23%
×4stories
+66ft-88ft

Overall

6459

Males

5734

M18-39

5734

25K→30K

15.5 - 18.6 mi

Top 26%
×9stories
+181ft-148ft

Overall

7501

Males

6273

M18-39

6273

30K→20M

18.6 - 20.0 mi

Top 24%
×5stories
+64ft-50ft

Overall

6929

Males

5782

M18-39

5782

20M→21M

20.0 - 21.0 mi

Top 21%
×8stories
+106ft-24ft

Overall

5978

Males

5049

M18-39

5049

21M→35K

21.0 - 21.8 mi

Top 20%
×7stories
+17ft-86ft

Overall

5737

Males

4873

M18-39

4873

35K→23M

21.8 - 23.0 mi

Top 26%
×5stories
+23ft-63ft

Overall

7394

Males

5797

M18-39

5797

23M→24M

23.0 - 24.0 mi

Top 31%
×6stories
+12ft-82ft

Overall

8721

Males

6488

M18-39

6488

24M→40K

24.0 - 24.9 mi

Top 26%
×1story
+6ft-20ft

Overall

7262

Males

5568

M18-39

5568

40K→25.2M

24.9 - 25.2 mi

Top 27%
×1story
+13ft-16ft

Overall

7621

Males

5680

M18-39

5680

25.2M→Finish

25.2 - 26.2 mi

Top 41%
×2stories
+22ft-21ft

Overall

11751

Males

7890

M18-39

7890

Passing Analysis

Category:
Athletes Passed
1319
Passed By
1870
Net Change
-551
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5489
5K → 10K37663+313#5489#5176
10K → 15K20188+113#5176#5063
15K → 20K63309-246#5063#5309
20K → Half774+73#5309#5236
Half → 25K52309-257#5236#5493
25K → 30K92483-391#5493#5884
30K → 20M55111-56#5884#5940
20M → 21M10134+67#5940#5873
21M → 35K5824+34#5873#5839
35K → 23M7899-21#5839#5860
23M → 24M42105-63#5860#5923
24M → 40K5847+11#5923#5912
40K → 25.2M3425+9#5912#5903
25.2M → Finish32169-137#5903#6040
TOTALS13191870-551
📊

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