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BOSTON MARATHON 2025

Chun Hung Au Yeung

Bib: 8667•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 33%
Gender (Male)
#0 / 16105
Top 46%
Masters (Masters Men)
#0 / 10463
Top 34%
Division (M45-49)
#0 / 2386
Top 49%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:50
Rank: #5505
Start → 5K
20:50 | 6:42/mi
10K· 6.21 mi
41:49
Rank: #5671 (-166)
5K → 10K
20:59 | 6:45/mi
15K· 9.32 mi
1:03:09
Rank: #5956 (-285)
10K → 15K
21:20 | 6:52/mi
20K· 12.43 mi
1:25:23
Rank: #6590 (-634)
15K → 20K
22:14 | 7:09/mi
Half· 13.11 mi
1:30:14
Rank: #6699 (-109)
20K → Half
4:51 | 7:07/mi
25K· 15.53 mi
1:48:20
Rank: #7091 (-392)
Half → 25K
18:06 | 7:28/mi
30K· 18.64 mi
2:13:20
Rank: #7692 (-601)
25K → 30K
25:00 | 8:03/mi
20M
2:24:23
Rank: #7903 (-211)
30K → 20M
11:03 | 8:08/mi
21M
2:33:24
Rank: #8176 (-273)
20M → 21M
9:01 | 9:01/mi
35K· 21.75 mi
2:39:14
Rank: #8246 (-70)
21M → 35K
5:50 | 7:48/mi
23M
2:50:01
Rank: #8555 (-309)
35K → 23M
10:47 | 8:37/mi
24M
2:58:04
Rank: #8694 (-139)
23M → 24M
8:03 | 8:03/mi
40K· 24.85 mi
3:05:18
Rank: #8848 (-154)
24M → 40K
7:14 | 8:28/mi
25.2M
3:08:37
Rank: #8964 (-116)
40K → 25.2M
3:19 | 9:37/mi
Finish· 26.22 mi
3:17:27
Rank: #9350 (-386)
25.2M → Finish
8:50 | 8:40/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:30:14
Pace6:53 /mi
2nd Half
Distance13.11 mi
Time1:47:13
Pace8:11 /mi
📊Positive Split: 18.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:46:1920:506:4220:50
6:42
-
10K
6.21 mi11:07:1841:496:4420:59
6:45
+0:03
15K
9.32 mi11:28:381:03:096:4721:20
6:52
+0:07
20K
12.43 mi11:50:521:25:236:5222:14
7:09
+0:17
Half
13.11 mi11:55:431:30:146:534:51
7:07
-0:02
25K
15.53 mi12:13:491:48:206:5818:06
7:28
+0:21
30K
18.64 mi12:38:492:13:207:0925:00
8:03
+0:35
20M
20.00 mi12:49:522:24:237:1311:03
8:08
+0:05
21M
21.00 mi12:58:532:33:247:189:01
9:01
+0:53
35K
21.75 mi13:04:432:39:147:195:50
7:48
-1:13
23M
23.00 mi13:15:302:50:017:2410:47
8:37
+0:49
24M
24.00 mi13:23:332:58:047:258:03
8:03
-0:34
40K
24.85 mi13:30:473:05:187:277:14
8:28
+0:25
25.2M
25.20 mi13:34:063:08:377:293:19
9:37
+1:09
Finish
26.22 mi13:42:563:17:277:328:50
8:40
-0:57

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

6:42 /mi

Average Pace

7:32 /mi

Slowest Pace

9:37 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:48:20

55% of race

Time at Steady Pace

57:10

29% of race

Time at Slower Pace

31:57

16% of race

Average Pace: 7:32 /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 mi10:46:1920:506:4220:50
6:42
#5505
10K
6.21 mi11:07:1841:496:4420:59
6:45
#5671
15K
9.32 mi11:28:381:03:096:4721:20
6:52
#5956
20K
12.43 mi11:50:521:25:236:5222:14
7:09
#6590
Half
13.11 mi11:55:431:30:146:534:51
7:07
#6699
25K
15.53 mi12:13:491:48:206:5818:06
7:28
#7091
30K
18.64 mi12:38:492:13:207:0925:00
8:03
#7692
20M
20.00 mi12:49:522:24:237:1311:03
8:08
#7903
21M
21.00 mi12:58:532:33:247:189:01
9:01
#8176
35K
21.75 mi13:04:432:39:147:195:50
7:48
#8246
23M
23.00 mi13:15:302:50:017:2410:47
8:37
#8555
24M
24.00 mi13:23:332:58:047:258:03
8:03
#8694
40K
24.85 mi13:30:473:05:187:277:14
8:28
#8848
25.2M
25.20 mi13:34:063:08:377:293:19
9:37
#8964
Finish
26.22 mi13:42:563:17:277:328:50
8:40
#9350
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi5505510751076729(Top 24%)6050(Top 38%)6050(Top 254%)
10K6.21 mi3.10 mi5671-1665239-1325239-1325898(Top 21%)5399(Top 34%)5399(Top 226%)
15K9.32 mi3.11 mi5956-2855461-2225461-2226729(Top 24%)6050(Top 38%)6050(Top 254%)
20K12.43 mi3.11 mi6590-6345953-4925953-4927863(Top 28%)6786(Top 42%)6786(Top 284%)
Half13.11 mi0.68 mi6699-1096048-956048-958341(Top 29%)7110(Top 44%)7110(Top 298%)
25K15.53 mi2.42 mi7091-3926326-2786326-2789663(Top 34%)7674(Top 48%)7674(Top 322%)
30K18.64 mi3.11 mi7692-6016685-3596685-35911704(Top 41%)8525(Top 53%)8525(Top 357%)
20M20.00 mi1.36 mi7903-2116773-886773-8811294(Top 40%)8173(Top 51%)8173(Top 343%)
21M21.00 mi1.00 mi8176-2736919-1466919-14613570(Top 48%)9126(Top 57%)9126(Top 382%)
35K21.75 mi0.75 mi8246-706942-236942-2310746(Top 38%)7728(Top 48%)7728(Top 324%)
23M23.00 mi1.25 mi8555-3097079-1377079-13713969(Top 49%)9142(Top 57%)9142(Top 383%)
24M24.00 mi1.00 mi8694-1397125-467125-4611564(Top 41%)7928(Top 49%)7928(Top 332%)
40K24.85 mi0.85 mi8848-1547175-507175-5013143(Top 46%)8582(Top 53%)8582(Top 360%)
25.2M25.20 mi0.35 mi8964-1167230-557230-5515094(Top 53%)9433(Top 59%)9433(Top 395%)
Finish26.22 mi1.02 mi9350-3867408-1787408-17817233(Top 61%)10501(Top 65%)10501(Top 440%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 24%
×21stories
+97ft-345ft

Overall

6729

Males

6050

M45-49

6050

5K→10K

3.1 - 6.2 mi

Top 21%
×5stories
+79ft-138ft

Overall

5898

Males

5399

M45-49

5399

10K→15K

6.2 - 9.3 mi

Top 24%
×3stories
+67ft-78ft

Overall

6729

Males

6050

M45-49

6050

15K→20K

9.3 - 12.4 mi

Top 28%
×5stories
+106ft-86ft

Overall

7863

Males

6786

M45-49

6786

20K→Half

12.4 - 13.1 mi

Top 29%
×2stories
+19ft-37ft

Overall

8341

Males

7110

M45-49

7110

Half→25K

13.1 - 15.5 mi

Top 34%
×4stories
+66ft-88ft

Overall

9663

Males

7674

M45-49

7674

25K→30K

15.5 - 18.6 mi

Top 41%
×9stories
+181ft-148ft

Overall

11704

Males

8525

M45-49

8525

30K→20M

18.6 - 20.0 mi

Top 40%
×5stories
+64ft-50ft

Overall

11294

Males

8173

M45-49

8173

20M→21M

20.0 - 21.0 mi

Top 48%
×8stories
+106ft-24ft

Overall

13570

Males

9126

M45-49

9126

21M→35K

21.0 - 21.8 mi

Top 38%
×7stories
+17ft-86ft

Overall

10746

Males

7728

M45-49

7728

35K→23M

21.8 - 23.0 mi

Top 49%
×5stories
+23ft-63ft

Overall

13969

Males

9142

M45-49

9142

23M→24M

23.0 - 24.0 mi

Top 41%
×6stories
+12ft-82ft

Overall

11564

Males

7928

M45-49

7928

24M→40K

24.0 - 24.9 mi

Top 46%
×1story
+6ft-20ft

Overall

13143

Males

8582

M45-49

8582

40K→25.2M

24.9 - 25.2 mi

Top 53%
×1story
+13ft-16ft

Overall

15094

Males

9433

M45-49

9433

25.2M→Finish

25.2 - 26.2 mi

Top 61%
×2stories
+22ft-21ft

Overall

17233

Males

10501

M45-49

10501

Passing Analysis

Category:
Athletes Passed
609
Passed By
4454
Net Change
-3845
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5505
5K → 10K111277-166#5505#5671
10K → 15K60345-285#5671#5956
15K → 20K42676-634#5956#6590
20K → Half5114-109#6590#6699
Half → 25K41433-392#6699#7091
25K → 30K65666-601#7091#7692
30K → 20M42253-211#7692#7903
20M → 21M41314-273#7903#8176
21M → 35K42112-70#8176#8246
35K → 23M51360-309#8246#8555
23M → 24M43182-139#8555#8694
24M → 40K43197-154#8694#8848
40K → 25.2M15131-116#8848#8964
25.2M → Finish8394-386#8964#9350
TOTALS6094454-3845
📊

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