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BOSTON MARATHON 2025

Yiu Cheong Wun

Bib: 3493•M

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 12%
Gender (Male)
#0 / 16105
Top 20%
Division (M18-39)
#0 / 5642
Top 44%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
18:22
Rank: #826
Start → 5K
18:22 | 5:55/mi
10K· 6.21 mi
37:15
Rank: #1052 (-226)
5K → 10K
18:53 | 6:05/mi
15K· 9.32 mi
56:10
Rank: #1135 (-83)
10K → 15K
18:55 | 6:05/mi
20K· 12.43 mi
1:15:59
Rank: #1395 (-260)
15K → 20K
19:49 | 6:23/mi
Half· 13.11 mi
1:20:23
Rank: #1472 (-77)
20K → Half
4:24 | 6:27/mi
25K· 15.53 mi
1:36:23
Rank: #1699 (-227)
Half → 25K
16:00 | 6:36/mi
30K· 18.64 mi
1:58:20
Rank: #2175 (-476)
25K → 30K
21:57 | 7:04/mi
20M
2:08:15
Rank: #2381 (-206)
30K → 20M
9:55 | 7:18/mi
21M
2:16:06
Rank: #2557 (-176)
20M → 21M
7:51 | 7:51/mi
35K· 21.75 mi
2:21:24
Rank: #2656 (-99)
21M → 35K
5:18 | 7:05/mi
23M
2:31:00
Rank: #2859 (-203)
35K → 23M
9:36 | 7:40/mi
24M
2:38:28
Rank: #3002 (-143)
23M → 24M
7:28 | 7:28/mi
40K· 24.85 mi
2:45:19
Rank: #3208 (-206)
24M → 40K
6:51 | 8:01/mi
25.2M
2:48:20
Rank: #3294 (-86)
40K → 25.2M
3:01 | 8:45/mi
Finish· 26.22 mi
2:56:06
Rank: #3517 (-223)
25.2M → Finish
7:46 | 7:37/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:20:23
Pace6:08 /mi
2nd Half
Distance13.11 mi
Time1:35:43
Pace7:18 /mi
📊Positive Split: 19.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:20:1618:225:5518:22
5:55
-
10K
6.21 mi10:39:0937:156:0018:53
6:05
+0:10
15K
9.32 mi10:58:0456:106:0218:55
6:05
0:00
20K
12.43 mi11:17:531:15:596:0719:49
6:23
+0:18
Half
13.11 mi11:22:171:20:236:084:24
6:27
+0:04
25K
15.53 mi11:38:171:36:236:1216:00
6:36
+0:09
30K
18.64 mi12:00:141:58:206:2121:57
7:04
+0:28
20M
20.00 mi12:10:092:08:156:259:55
7:18
+0:14
21M
21.00 mi12:18:002:16:066:297:51
7:51
+0:33
35K
21.75 mi12:23:182:21:246:305:18
7:05
-0:46
23M
23.00 mi12:32:542:31:006:349:36
7:40
+0:35
24M
24.00 mi12:40:222:38:286:367:28
7:28
-0:12
40K
24.85 mi12:47:132:45:196:396:51
8:01
+0:33
25.2M
25.20 mi12:50:142:48:206:413:01
8:45
+0:44
Finish
26.22 mi12:58:002:56:066:437:46
7:37
-1:08

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

5:55 /mi

Average Pace

6:43 /mi

Slowest Pace

8:45 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:36:23

55% of race

Time at Steady Pace

44:38

25% of race

Time at Slower Pace

35:05

20% of race

Average Pace: 6:43 /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 mi10:20:1618:225:5518:22
5:55
#826
10K
6.21 mi10:39:0937:156:0018:53
6:05
#1052
15K
9.32 mi10:58:0456:106:0218:55
6:05
#1135
20K
12.43 mi11:17:531:15:596:0719:49
6:23
#1395
Half
13.11 mi11:22:171:20:236:084:24
6:27
#1472
25K
15.53 mi11:38:171:36:236:1216:00
6:36
#1699
30K
18.64 mi12:00:141:58:206:2121:57
7:04
#2175
20M
20.00 mi12:10:092:08:156:259:55
7:18
#2381
21M
21.00 mi12:18:002:16:066:297:51
7:51
#2557
35K
21.75 mi12:23:182:21:246:305:18
7:05
#2656
23M
23.00 mi12:32:542:31:006:349:36
7:40
#2859
24M
24.00 mi12:40:222:38:286:367:28
7:28
#3002
40K
24.85 mi12:47:132:45:196:396:51
8:01
#3208
25.2M
25.20 mi12:50:142:48:206:413:01
8:45
#3294
Finish
26.22 mi12:58:002:56:066:437:46
7:37
#3517
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi8267727721332(Top 5%)1265(Top 8%)1265(Top 22%)
10K6.21 mi3.10 mi1052-226992-220992-2201399(Top 5%)1328(Top 8%)1328(Top 24%)
15K9.32 mi3.11 mi1135-831073-811073-811332(Top 5%)1265(Top 8%)1265(Top 22%)
20K12.43 mi3.11 mi1395-2601324-2511324-2512419(Top 9%)2308(Top 14%)2308(Top 41%)
Half13.11 mi0.68 mi1472-771397-731397-733413(Top 12%)3239(Top 20%)3239(Top 57%)
25K15.53 mi2.42 mi1699-2271614-2171614-2173469(Top 12%)3274(Top 20%)3274(Top 58%)
30K18.64 mi3.11 mi2175-4762072-4582072-4585111(Top 18%)4628(Top 29%)4628(Top 82%)
20M20.00 mi1.36 mi2381-2062272-2002272-2005773(Top 20%)5034(Top 31%)5034(Top 89%)
21M21.00 mi1.00 mi2557-1762438-1662438-1666473(Top 23%)5368(Top 33%)5368(Top 95%)
35K21.75 mi0.75 mi2656-992530-922530-925886(Top 21%)4985(Top 31%)4985(Top 88%)
23M23.00 mi1.25 mi2859-2032711-1812711-1817661(Top 27%)5963(Top 37%)5963(Top 106%)
24M24.00 mi1.00 mi3002-1432840-1292840-1297433(Top 26%)5780(Top 36%)5780(Top 102%)
40K24.85 mi0.85 mi3208-2063022-1823022-18210239(Top 36%)7152(Top 44%)7152(Top 127%)
25.2M25.20 mi0.35 mi3294-863097-753097-7510193(Top 36%)7017(Top 44%)7017(Top 124%)
Finish26.22 mi1.02 mi3517-2233283-1863283-18610068(Top 35%)7005(Top 43%)7005(Top 124%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 5%
×21stories
+97ft-345ft

Overall

1332

Males

1265

M18-39

1265

5K→10K

3.1 - 6.2 mi

Top 5%
×5stories
+79ft-138ft

Overall

1399

Males

1328

M18-39

1328

10K→15K

6.2 - 9.3 mi

Top 5%
×3stories
+67ft-78ft

Overall

1332

Males

1265

M18-39

1265

15K→20K

9.3 - 12.4 mi

Top 9%
×5stories
+106ft-86ft

Overall

2419

Males

2308

M18-39

2308

20K→Half

12.4 - 13.1 mi

Top 12%
×2stories
+19ft-37ft

Overall

3413

Males

3239

M18-39

3239

Half→25K

13.1 - 15.5 mi

Top 12%
×4stories
+66ft-88ft

Overall

3469

Males

3274

M18-39

3274

25K→30K

15.5 - 18.6 mi

Top 18%
×9stories
+181ft-148ft

Overall

5111

Males

4628

M18-39

4628

30K→20M

18.6 - 20.0 mi

Top 20%
×5stories
+64ft-50ft

Overall

5773

Males

5034

M18-39

5034

20M→21M

20.0 - 21.0 mi

Top 23%
×8stories
+106ft-24ft

Overall

6473

Males

5368

M18-39

5368

21M→35K

21.0 - 21.8 mi

Top 21%
×7stories
+17ft-86ft

Overall

5886

Males

4985

M18-39

4985

35K→23M

21.8 - 23.0 mi

Top 27%
×5stories
+23ft-63ft

Overall

7661

Males

5963

M18-39

5963

23M→24M

23.0 - 24.0 mi

Top 26%
×6stories
+12ft-82ft

Overall

7433

Males

5780

M18-39

5780

24M→40K

24.0 - 24.9 mi

Top 36%
×1story
+6ft-20ft

Overall

10239

Males

7152

M18-39

7152

40K→25.2M

24.9 - 25.2 mi

Top 36%
×1story
+13ft-16ft

Overall

10193

Males

7017

M18-39

7017

25.2M→Finish

25.2 - 26.2 mi

Top 35%
×2stories
+22ft-21ft

Overall

10068

Males

7005

M18-39

7005

Passing Analysis

Category:
Athletes Passed
144
Passed By
2835
Net Change
-2691
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#826
5K → 10K5231-226#826#1052
10K → 15K1699-83#1052#1135
15K → 20K7267-260#1135#1395
20K → Half077-77#1395#1472
Half → 25K10237-227#1472#1699
25K → 30K10486-476#1699#2175
30K → 20M10216-206#2175#2381
20M → 21M15191-176#2381#2557
21M → 35K14113-99#2557#2656
35K → 23M18221-203#2656#2859
23M → 24M14157-143#2859#3002
24M → 40K12218-206#3002#3208
40K → 25.2M591-86#3208#3294
25.2M → Finish8231-223#3294#3517
TOTALS1442835-2691
📊

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