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BOSTON MARATHON 2025

Boyuan Yan

Bib: 9254•M

NY

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 24%
Gender (Male)
#0 / 16105
Top 37%
Masters (Masters Men)
#0 / 10463
Top 24%
Division (M40-44)
#0 / 2247
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:14
Rank: #6586
Start → 5K
6:50/mi
21:14 split
10K· 6.21 mi
42:40
Rank: #6895 (-309)
5K → 10K
6:54/mi
21:26 split
15K· 9.32 mi
1:04:01
Rank: #6815 (+80)
10K → 15K
6:52/mi
21:21 split
20K· 12.43 mi
1:25:44
Rank: #6804 (+11)
15K → 20K
6:59/mi
21:43 split
Half· 13.11 mi
1:30:26
Rank: #6816 (-12)
20K → Half
6:53/mi
4:42 split
25K· 15.53 mi
1:47:50
Rank: #6866 (-50)
Half → 25K
7:11/mi
17:24 split
30K· 18.64 mi
2:11:07
Rank: #6877 (-11)
25K → 30K
7:30/mi
23:17 split
20M
2:21:32
Rank: #6884 (-7)
30K → 20M
7:40/mi
10:25 split
21M
2:29:34
Rank: #6841 (+43)
20M → 21M
8:02/mi
8:02 split
35K· 21.75 mi
2:35:11
Rank: #6883 (-42)
21M → 35K
7:30/mi
5:37 split
23M
2:45:12
Rank: #6995 (-112)
35K → 23M
8:00/mi
10:01 split
24M
2:52:58
Rank: #7051 (-56)
23M → 24M
7:46/mi
7:46 split
40K· 24.85 mi
2:59:28
Rank: #7011 (+40)
24M → 40K
7:36/mi
6:30 split
25.2M
3:02:25
Rank: #7043 (-32)
40K → 25.2M
8:33/mi
2:57 split
Finish· 26.22 mi
3:09:35
Rank: #6934 (+109)
25.2M → Finish
7:02/mi
7:10 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:30:26
Pace6:54 /mi
2nd Half
Distance13.11 mi
Time1:39:09
Pace7:34 /mi
📊Positive Split: 9.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:11:4721:146:5021:14
6:50
-
10K
6.21 mi11:33:1342:406:5221:26
6:54
+0:04
15K
9.32 mi11:54:341:04:016:5221:21
6:52
-0:02
20K
12.43 mi12:16:171:25:446:5421:43
6:59
+0:07
Half
13.11 mi12:20:591:30:266:544:42
6:53
-0:06
25K
15.53 mi12:38:231:47:506:5617:24
7:11
+0:18
30K
18.64 mi13:01:402:11:077:0223:17
7:30
+0:19
20M
20.00 mi13:12:052:21:327:0510:25
7:40
+0:10
21M
21.00 mi13:20:072:29:347:078:02
8:02
+0:22
35K
21.75 mi13:25:442:35:117:085:37
7:30
-0:32
23M
23.00 mi13:35:452:45:127:1110:01
8:00
+0:30
24M
24.00 mi13:43:312:52:587:127:46
7:46
-0:14
40K
24.85 mi13:50:012:59:287:136:30
7:36
-0:10
25.2M
25.20 mi13:52:583:02:257:142:57
8:33
+0:57
Finish
26.22 mi14:00:083:09:357:147:10
7:02
-1:31

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

6:50 /mi

Average Pace

7:14 /mi

Slowest Pace

8:33 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:55:00

61% of race

Time at Steady Pace

45:49

24% of race

Time at Slower Pace

28:46

15% of race

Average Pace: 7:14 /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 mi11:11:4721:146:5021:14
6:50
#6586
10K
6.21 mi11:33:1342:406:5221:26
6:54
#6895
15K
9.32 mi11:54:341:04:016:5221:21
6:52
#6815
20K
12.43 mi12:16:171:25:446:5421:43
6:59
#6804
Half
13.11 mi12:20:591:30:266:544:42
6:53
#6816
25K
15.53 mi12:38:231:47:506:5617:24
7:11
#6866
30K
18.64 mi13:01:402:11:077:0223:17
7:30
#6877
20M
20.00 mi13:12:052:21:327:0510:25
7:40
#6884
21M
21.00 mi13:20:072:29:347:078:02
8:02
#6841
35K
21.75 mi13:25:442:35:117:085:37
7:30
#6883
23M
23.00 mi13:35:452:45:127:1110:01
8:00
#6995
24M
24.00 mi13:43:312:52:587:127:46
7:46
#7051
40K
24.85 mi13:50:012:59:287:136:30
7:36
#7011
25.2M
25.20 mi13:52:583:02:257:142:57
8:33
#7043
Finish
26.22 mi14:00:083:09:357:147:10
7:02
#6934
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi6586598659866746(Top 24%)6060(Top 38%)6060(Top 270%)
10K6.21 mi3.10 mi6895-3096213-2276213-2277217(Top 25%)6445(Top 40%)6445(Top 287%)
15K9.32 mi3.11 mi6815+806134+796134+796746(Top 24%)6060(Top 38%)6060(Top 270%)
20K12.43 mi3.11 mi6804+116132+26132+26808(Top 24%)6061(Top 38%)6061(Top 270%)
Half13.11 mi0.68 mi6816-126137-56137-56773(Top 24%)6038(Top 37%)6038(Top 269%)
25K15.53 mi2.42 mi6866-506146-96146-97414(Top 26%)6385(Top 40%)6385(Top 284%)
30K18.64 mi3.11 mi6877-116114+326114+327692(Top 27%)6402(Top 40%)6402(Top 285%)
20M20.00 mi1.36 mi6884-76099+156099+158094(Top 28%)6492(Top 40%)6492(Top 289%)
21M21.00 mi1.00 mi6841+436039+606039+607496(Top 26%)5961(Top 37%)5961(Top 265%)
35K21.75 mi0.75 mi6883-426055-166055-168621(Top 30%)6630(Top 41%)6630(Top 295%)
23M23.00 mi1.25 mi6995-1126095-406095-409981(Top 35%)7210(Top 45%)7210(Top 321%)
24M24.00 mi1.00 mi7051-566099-46099-49514(Top 33%)6906(Top 43%)6906(Top 307%)
40K24.85 mi0.85 mi7011+406041+586041+587395(Top 26%)5653(Top 35%)5653(Top 252%)
25.2M25.20 mi0.35 mi7043-326045-46045-48993(Top 32%)6412(Top 40%)6412(Top 285%)
Finish26.22 mi1.02 mi6934+1095950+955950+955919(Top 21%)4677(Top 29%)4677(Top 208%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 24%
×21story building
+97ft-345ft

Overall

6746

Males

6060

M40-44

6060

5K→10K

3.1 - 6.2 mi

Top 25%
×5story building
+79ft-138ft

Overall

7217

Males

6445

M40-44

6445

10K→15K

6.2 - 9.3 mi

Top 24%
×3story building
+67ft-78ft

Overall

6746

Males

6060

M40-44

6060

15K→20K

9.3 - 12.4 mi

Top 24%
×5story building
+106ft-86ft

Overall

6808

Males

6061

M40-44

6061

20K→Half

12.4 - 13.1 mi

Top 24%
×2story building
+19ft-37ft

Overall

6773

Males

6038

M40-44

6038

Half→25K

13.1 - 15.5 mi

Top 26%
×4story building
+66ft-88ft

Overall

7414

Males

6385

M40-44

6385

25K→30K

15.5 - 18.6 mi

Top 27%
×9story building
+181ft-148ft

Overall

7692

Males

6402

M40-44

6402

30K→20M

18.6 - 20.0 mi

Top 28%
×5story building
+64ft-50ft

Overall

8094

Males

6492

M40-44

6492

20M→21M

20.0 - 21.0 mi

Top 26%
×8story building
+106ft-24ft

Overall

7496

Males

5961

M40-44

5961

21M→35K

21.0 - 21.8 mi

Top 30%
×7story building
+17ft-86ft

Overall

8621

Males

6630

M40-44

6630

35K→23M

21.8 - 23.0 mi

Top 35%
×5story building
+23ft-63ft

Overall

9981

Males

7210

M40-44

7210

23M→24M

23.0 - 24.0 mi

Top 33%
×6story building
+12ft-82ft

Overall

9514

Males

6906

M40-44

6906

24M→40K

24.0 - 24.9 mi

Top 26%
×1story
+6ft-20ft

Overall

7395

Males

5653

M40-44

5653

40K→25.2M

24.9 - 25.2 mi

Top 32%
×1story
+13ft-16ft

Overall

8993

Males

6412

M40-44

6412

25.2M→Finish

25.2 - 26.2 mi

Top 21%
×2story building
+22ft-21ft

Overall

5919

Males

4677

M40-44

4677

Passing Analysis

Category:
Athletes Passed
1287
Passed By
1635
Net Change
-348
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6586
5K → 10K95404-309#6586#6895
10K → 15K185105+80#6895#6815
15K → 20K133122+11#6815#6804
20K → Half1830-12#6804#6816
Half → 25K104154-50#6816#6866
25K → 30K176187-11#6866#6877
30K → 20M9299-7#6877#6884
20M → 21M10865+43#6884#6841
21M → 35K4385-42#6841#6883
35K → 23M60172-112#6883#6995
23M → 24M47103-56#6995#7051
24M → 40K8242+40#7051#7011
40K → 25.2M1648-32#7011#7043
25.2M → Finish12819+109#7043#6934
TOTALS12871635-348
📊

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