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BOSTON MARATHON 2025

Endymion Yeung

Bib: 14329•M

NT

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M50-54)
#0 / 1996
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:18
Rank: #14994
Start → 5K
7:49/mi
24:18 split
10K· 6.21 mi
50:01
Rank: #16892 (-1898)
5K → 10K
8:17/mi
25:43 split
15K· 9.32 mi
1:15:19
Rank: #16931 (-39)
10K → 15K
8:09/mi
25:18 split
20K· 12.43 mi
1:41:03
Rank: #16902 (+29)
15K → 20K
8:17/mi
25:44 split
Half· 13.11 mi
1:46:26
Rank: #16799 (+103)
20K → Half
7:53/mi
5:23 split
25K· 15.53 mi
2:06:30
Rank: #16590 (+209)
Half → 25K
8:17/mi
20:04 split
30K· 18.64 mi
2:34:00
Rank: #16598 (-8)
25K → 30K
8:51/mi
27:30 split
20M
2:45:24
Rank: #16311 (+287)
30K → 20M
8:23/mi
11:24 split
21M
2:55:51
Rank: #16540 (-229)
20M → 21M
10:27/mi
10:27 split
35K· 21.75 mi
3:02:02
Rank: #16415 (+125)
21M → 35K
8:16/mi
6:11 split
23M
3:13:30
Rank: #16419 (-4)
35K → 23M
9:09/mi
11:28 split
24M
3:21:42
Rank: #16224 (+195)
23M → 24M
8:12/mi
8:12 split
40K· 24.85 mi
3:29:12
Rank: #16184 (+40)
24M → 40K
8:46/mi
7:30 split
25.2M
3:32:51
Rank: #16258 (-74)
40K → 25.2M
10:35/mi
3:39 split
Finish· 26.22 mi
3:41:34
Rank: #16258
25.2M → Finish
8:33/mi
8:43 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:46:26
Pace8:07 /mi
2nd Half
Distance13.11 mi
Time1:55:08
Pace8:47 /mi
📊Positive Split: 8.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:55:1524:187:4924:18
7:49
-
10K
6.21 mi11:20:5850:018:0325:43
8:17
+0:28
15K
9.32 mi11:46:161:15:198:0525:18
8:09
-0:08
20K
12.43 mi12:12:001:41:038:0825:44
8:17
+0:08
Half
13.11 mi12:17:231:46:268:075:23
7:53
-0:24
25K
15.53 mi12:37:272:06:308:0920:04
8:17
+0:24
30K
18.64 mi13:04:572:34:008:1627:30
8:51
+0:34
20M
20.00 mi13:16:212:45:248:1611:24
8:23
-0:28
21M
21.00 mi13:26:482:55:518:2210:27
10:27
+2:04
35K
21.75 mi13:32:593:02:028:226:11
8:16
-2:11
23M
23.00 mi13:44:273:13:308:2511:28
9:09
+0:53
24M
24.00 mi13:52:393:21:428:248:12
8:12
-0:57
40K
24.85 mi14:00:093:29:128:257:30
8:46
+0:34
25.2M
25.20 mi14:03:483:32:518:273:39
10:35
+1:49
Finish
26.22 mi14:12:313:41:348:278:43
8:33
-2:02

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

7:49 /mi

Average Pace

8:27 /mi

Slowest Pace

10:35 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

24:18

11% of race

Time at Steady Pace

2:16:42

62% of race

Time at Slower Pace

1:00:34

27% of race

Average Pace: 8:27 /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 mi10:55:1524:187:4924:18
7:49
#14994
10K
6.21 mi11:20:5850:018:0325:43
8:17
#16892
15K
9.32 mi11:46:161:15:198:0525:18
8:09
#16931
20K
12.43 mi12:12:001:41:038:0825:44
8:17
#16902
Half
13.11 mi12:17:231:46:268:075:23
7:53
#16799
25K
15.53 mi12:37:272:06:308:0920:04
8:17
#16590
30K
18.64 mi13:04:572:34:008:1627:30
8:51
#16598
20M
20.00 mi13:16:212:45:248:1611:24
8:23
#16311
21M
21.00 mi13:26:482:55:518:2210:27
10:27
#16540
35K
21.75 mi13:32:593:02:028:226:11
8:16
#16415
23M
23.00 mi13:44:273:13:308:2511:28
9:09
#16419
24M
24.00 mi13:52:393:21:428:248:12
8:12
#16224
40K
24.85 mi14:00:093:29:128:257:30
8:46
#16184
25.2M
25.20 mi14:03:483:32:518:273:39
10:35
#16258
Finish
26.22 mi14:12:313:41:348:278:43
8:33
#16258
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi14994104251042517027(Top 60%)11227(Top 70%)11227(Top 562%)
10K6.21 mi3.10 mi16892-189811181-75611181-75618392(Top 65%)11800(Top 73%)11800(Top 591%)
15K9.32 mi3.11 mi16931-3911200-1911200-1917027(Top 60%)11227(Top 70%)11227(Top 562%)
20K12.43 mi3.11 mi16902+2911171+2911171+2916827(Top 59%)11100(Top 69%)11100(Top 556%)
Half13.11 mi0.68 mi16799+10311142+2911142+2914984(Top 53%)10346(Top 64%)10346(Top 518%)
25K15.53 mi2.42 mi16590+20911023+11911023+11915763(Top 55%)10550(Top 66%)10550(Top 529%)
30K18.64 mi3.11 mi16598-810969+5410969+5416891(Top 59%)10867(Top 67%)10867(Top 544%)
20M20.00 mi1.36 mi16311+28710822+14710822+14713072(Top 46%)9031(Top 56%)9031(Top 452%)
21M21.00 mi1.00 mi16540-22910891-6910891-6919826(Top 70%)11959(Top 74%)11959(Top 599%)
35K21.75 mi0.75 mi16415+12510818+7310818+7314033(Top 49%)9318(Top 58%)9318(Top 467%)
23M23.00 mi1.25 mi16419-410792+2610792+2617126(Top 60%)10561(Top 66%)10561(Top 529%)
24M24.00 mi1.00 mi16224+19510672+12010672+12012559(Top 44%)8453(Top 52%)8453(Top 423%)
40K24.85 mi0.85 mi16184+4010637+3510637+3515014(Top 53%)9457(Top 59%)9457(Top 474%)
25.2M25.20 mi0.35 mi16258-7410657-2010657-2019263(Top 68%)11422(Top 71%)11422(Top 572%)
Finish26.22 mi1.02 mi1625810640+1710640+1716552(Top 58%)10181(Top 63%)10181(Top 510%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 60%
×21story building
+97ft-345ft

Overall

17027

Males

11227

M50-54

11227

5K→10K

3.1 - 6.2 mi

Top 65%
×5story building
+79ft-138ft

Overall

18392

Males

11800

M50-54

11800

10K→15K

6.2 - 9.3 mi

Top 60%
×3story building
+67ft-78ft

Overall

17027

Males

11227

M50-54

11227

15K→20K

9.3 - 12.4 mi

Top 59%
×5story building
+106ft-86ft

Overall

16827

Males

11100

M50-54

11100

20K→Half

12.4 - 13.1 mi

Top 53%
×2story building
+19ft-37ft

Overall

14984

Males

10346

M50-54

10346

Half→25K

13.1 - 15.5 mi

Top 55%
×4story building
+66ft-88ft

Overall

15763

Males

10550

M50-54

10550

25K→30K

15.5 - 18.6 mi

Top 59%
×9story building
+181ft-148ft

Overall

16891

Males

10867

M50-54

10867

30K→20M

18.6 - 20.0 mi

Top 46%
×5story building
+64ft-50ft

Overall

13072

Males

9031

M50-54

9031

20M→21M

20.0 - 21.0 mi

Top 70%
×8story building
+106ft-24ft

Overall

19826

Males

11959

M50-54

11959

21M→35K

21.0 - 21.8 mi

Top 49%
×7story building
+17ft-86ft

Overall

14033

Males

9318

M50-54

9318

35K→23M

21.8 - 23.0 mi

Top 60%
×5story building
+23ft-63ft

Overall

17126

Males

10561

M50-54

10561

23M→24M

23.0 - 24.0 mi

Top 44%
×6story building
+12ft-82ft

Overall

12559

Males

8453

M50-54

8453

24M→40K

24.0 - 24.9 mi

Top 53%
×1story
+6ft-20ft

Overall

15014

Males

9457

M50-54

9457

40K→25.2M

24.9 - 25.2 mi

Top 68%
×1story
+13ft-16ft

Overall

19263

Males

11422

M50-54

11422

25.2M→Finish

25.2 - 26.2 mi

Top 58%
×2story building
+22ft-21ft

Overall

16552

Males

10181

M50-54

10181

Passing Analysis

Category:
Athletes Passed
1973
Passed By
3237
Net Change
-1264
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14994
5K → 10K231921-1898#14994#16892
10K → 15K191230-39#16892#16931
15K → 20K204175+29#16931#16902
20K → Half1063+103#16902#16799
Half → 25K26253+209#16799#16590
25K → 30K215223-8#16590#16598
30K → 20M2936+287#16598#16311
20M → 21M54283-229#16311#16540
21M → 35K1338+125#16540#16415
35K → 23M120124-4#16415#16419
23M → 24M2016+195#16419#16224
24M → 40K8242+40#16224#16184
40K → 25.2M1488-74#16184#16258
25.2M → Finish75750#16258#16258
TOTALS19733237-1264
📊

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