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BOSTON MARATHON 2025

Beumkyu Yoo

Bib: 13736•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 46%
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Top 49%
Division (M55-59)
#0 / 1648
Top 36%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
7:45/mi
24:06
↑ 97↓ 3451.5%
10K· 6.21 mi
7:56/mi
48:45
↑ 79↓ 1380.4%
15K· 9.32 mi
7:51/mi
1:13:08
↑ 67↓ 78
20K· 12.43 mi
8:02/mi
1:38:06
↑ 106↓ 860.1%
Half· 13.11 mi
7:55/mi
1:43:30
↑ 19↓ 370.5%
25K· 15.53 mi
8:03/mi
2:03:00
↑ 66↓ 880.2%
30K· 18.64 mi
8:02/mi
2:27:59
↑ 181↓ 1480.2%
20M
8:08/mi
2:39:02
↑ 64↓ 500.2%
21M
8:31/mi
2:47:33
↑ 106↓ 241.6%
35K· 21.75 mi
7:46/mi
2:53:22
↑ 17↓ 861.7%
23M
8:04/mi
3:03:28
↑ 23↓ 630.6%
24M
7:50/mi
3:11:18
↓ 821.3%
40K· 24.85 mi
8:10/mi
3:18:17
↓ 200.3%
25.2M
8:33/mi
3:21:14
↑ 13↓ 160.2%
Finish· 26.22 mi
7:46/mi
3:29:09
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:43:30
Pace7:54 /mi
2nd Half
Distance13.11 mi
Time1:45:39
Pace8:04 /mi
📊Positive Split: 2.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:53:1524:067:4524:06
7:45
-
10K
6.21 mi11:17:5448:457:5124:39
7:56
+0:11
15K
9.32 mi11:42:171:13:087:5124:23
7:51
-0:05
20K
12.43 mi12:07:151:38:067:5424:58
8:02
+0:11
Half
13.11 mi12:12:391:43:307:545:24
7:55
-0:07
25K
15.53 mi12:32:092:03:007:5519:30
8:03
+0:08
30K
18.64 mi12:57:082:27:597:5624:59
8:02
-0:01
20M
20.00 mi13:08:112:39:027:5711:03
8:08
+0:06
21M
21.00 mi13:16:422:47:337:598:31
8:31
+0:23
35K
21.75 mi13:22:312:53:227:585:49
7:46
-0:45
23M
23.00 mi13:32:373:03:287:5910:06
8:04
+0:18
24M
24.00 mi13:40:273:11:187:587:50
7:50
-0:14
40K
24.85 mi13:47:263:18:177:596:59
8:10
+0:20
25.2M
25.20 mi13:50:233:21:147:592:57
8:33
+0:23
Finish
26.22 mi13:58:183:29:097:597:55
7:46
-0:47

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

7:45 /mi

Average Pace

7:59 /mi

Slowest Pace

8:33 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:26:12

99% of race

Time at Steady Pace

2:57

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:59 /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 mi10:53:1524:067:4524:06
7:45
#14422
10K
6.21 mi11:17:5448:457:5124:39
7:56
#15193
15K
9.32 mi11:42:171:13:087:5124:23
7:51
#15045
20K
12.43 mi12:07:151:38:067:5424:58
8:02
#15039
Half
13.11 mi12:12:391:43:307:545:24
7:55
#15042
25K
15.53 mi12:32:092:03:007:5519:30
8:03
#14883
30K
18.64 mi12:57:082:27:597:5624:59
8:02
#14172
20M
20.00 mi13:08:112:39:027:5711:03
8:08
#13923
21M
21.00 mi13:16:422:47:337:598:31
8:31
#13684
35K
21.75 mi13:22:312:53:227:585:49
7:46
#13562
23M
23.00 mi13:32:373:03:287:5910:06
8:04
#13345
24M
24.00 mi13:40:273:11:187:587:50
7:50
#13184
40K
24.85 mi13:47:263:18:177:596:59
8:10
#13095
25.2M
25.20 mi13:50:233:21:147:592:57
8:33
#13036
Finish
26.22 mi13:58:183:29:097:597:55
7:46
#12962
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi14422102061020614779(Top 52%)10272(Top 64%)10272(Top 623%)
10K6.21 mi3.10 mi15193-77110491-28510491-28515924(Top 56%)10794(Top 67%)10794(Top 655%)
15K9.32 mi3.11 mi15045+14810417+7410417+7414779(Top 52%)10272(Top 64%)10272(Top 623%)
20K12.43 mi3.11 mi15039+610391+2610391+2615176(Top 53%)10393(Top 65%)10393(Top 631%)
Half13.11 mi0.68 mi15042-310389+210389+215136(Top 53%)10383(Top 64%)10383(Top 630%)
25K15.53 mi2.42 mi14883+15910281+10810281+10814206(Top 50%)9850(Top 61%)9850(Top 598%)
30K18.64 mi3.11 mi14172+7119926+3559926+35511680(Top 41%)8518(Top 53%)8518(Top 517%)
20M20.00 mi1.36 mi13923+2499783+1439783+14311331(Top 40%)8210(Top 51%)8210(Top 498%)
21M21.00 mi1.00 mi13684+2399650+1339650+13310576(Top 37%)7665(Top 48%)7665(Top 465%)
35K21.75 mi0.75 mi13562+1229575+759575+7510616(Top 37%)7685(Top 48%)7685(Top 466%)
23M23.00 mi1.25 mi13345+2179444+1319444+13110512(Top 37%)7492(Top 47%)7492(Top 455%)
24M24.00 mi1.00 mi13184+1619340+1049340+10410050(Top 35%)7199(Top 45%)7199(Top 437%)
40K24.85 mi0.85 mi13095+899277+639277+6311353(Top 40%)7744(Top 48%)7744(Top 470%)
25.2M25.20 mi0.35 mi13036+599244+339244+339099(Top 32%)6518(Top 40%)6518(Top 396%)
Finish26.22 mi1.02 mi12962+749195+499195+4911206(Top 39%)7624(Top 47%)7624(Top 463%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 52%
×21story building
+97ft-345ft

Overall

14779

Males

10272

M55-59

10272

5K→10K

3.1 - 6.2 mi

Top 56%
×5story building
+79ft-138ft

Overall

15924

Males

10794

M55-59

10794

10K→15K

6.2 - 9.3 mi

Top 52%
×3story building
+67ft-78ft

Overall

14779

Males

10272

M55-59

10272

15K→20K

9.3 - 12.4 mi

Top 53%
×5story building
+106ft-86ft

Overall

15176

Males

10393

M55-59

10393

20K→Half

12.4 - 13.1 mi

Top 53%
×2story building
+19ft-37ft

Overall

15136

Males

10383

M55-59

10383

Half→25K

13.1 - 15.5 mi

Top 50%
×4story building
+66ft-88ft

Overall

14206

Males

9850

M55-59

9850

25K→30K

15.5 - 18.6 mi

Top 41%
×9story building
+181ft-148ft

Overall

11680

Males

8518

M55-59

8518

30K→20M

18.6 - 20.0 mi

Top 40%
×5story building
+64ft-50ft

Overall

11331

Males

8210

M55-59

8210

20M→21M

20.0 - 21.0 mi

Top 37%
×8story building
+106ft-24ft

Overall

10576

Males

7665

M55-59

7665

21M→35K

21.0 - 21.8 mi

Top 37%
×7story building
+17ft-86ft

Overall

10616

Males

7685

M55-59

7685

35K→23M

21.8 - 23.0 mi

Top 37%
×5story building
+23ft-63ft

Overall

10512

Males

7492

M55-59

7492

23M→24M

23.0 - 24.0 mi

Top 35%
×6story building
+12ft-82ft

Overall

10050

Males

7199

M55-59

7199

24M→40K

24.0 - 24.9 mi

Top 40%
×1story
+6ft-20ft

Overall

11353

Males

7744

M55-59

7744

40K→25.2M

24.9 - 25.2 mi

Top 32%
×1story
+13ft-16ft

Overall

9099

Males

6518

M55-59

6518

25.2M→Finish

25.2 - 26.2 mi

Top 39%
×2story building
+22ft-21ft

Overall

11206

Males

7624

M55-59

7624

Passing Analysis

Category:
Athletes Passed
2911
Passed By
1451
Net Change
+1460
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14422
5K → 10K77848-771#14422#15193
10K → 15K284136+148#15193#15045
15K → 20K223217+6#15045#15039
20K → Half3336-3#15039#15042
Half → 25K24182+159#15042#14883
25K → 30K72211+711#14883#14172
30K → 20M26213+249#14172#13923
20M → 21M25415+239#13923#13684
21M → 35K1286+122#13684#13562
35K → 23M23316+217#13562#13345
23M → 24M17110+161#13345#13184
24M → 40K11324+89#13184#13095
40K → 25.2M656+59#13095#13036
25.2M → Finish10531+74#13036#12962
TOTALS29111451+1460
📊

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