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BOSTON MARATHON 2025

Dongchun Ryoo

Bib: 20631•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M60-64)
#0 / 1259
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
8:36/mi
26:42
↑ 97↓ 3451.5%
10K· 6.21 mi
8:11/mi
52:07
↑ 79↓ 1380.4%
15K· 9.32 mi
8:25/mi
1:18:16
↑ 67↓ 78
20K· 12.43 mi
8:41/mi
1:45:14
↑ 106↓ 860.1%
Half· 13.11 mi
8:32/mi
1:51:03
↑ 19↓ 370.5%
25K· 15.53 mi
9:00/mi
2:12:52
↑ 66↓ 880.2%
30K· 18.64 mi
10:20/mi
2:44:58
↑ 181↓ 1480.2%
20M
9:08/mi
2:57:23
↑ 64↓ 500.2%
21M
11:27/mi
3:08:50
↑ 106↓ 241.6%
35K· 21.75 mi
11:31/mi
3:17:27
↑ 17↓ 861.7%
23M
10:31/mi
3:30:37
↑ 23↓ 630.6%
24M
9:36/mi
3:40:13
↓ 821.3%
40K· 24.85 mi
10:48/mi
3:49:27
↓ 200.3%
25.2M
11:30/mi
3:53:25
↑ 13↓ 160.2%
Finish· 26.22 mi
10:05/mi
4:03:42
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:51:03
Pace8:28 /mi
2nd Half
Distance13.11 mi
Time2:12:39
Pace10:07 /mi
📊Positive Split: 19.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:21:4226:428:3626:42
8:36
-
10K
6.21 mi11:47:0752:078:2325:25
8:11
-0:25
15K
9.32 mi12:13:161:18:168:2426:09
8:25
+0:14
20K
12.43 mi12:40:141:45:148:2826:58
8:41
+0:16
Half
13.11 mi12:46:031:51:038:285:49
8:32
-0:09
25K
15.53 mi13:07:522:12:528:3321:49
9:00
+0:28
30K
18.64 mi13:39:582:44:588:5132:06
10:20
+1:20
20M
20.00 mi13:52:232:57:238:5212:25
9:08
-1:12
21M
21.00 mi14:03:503:08:509:0011:27
11:27
+2:19
35K
21.75 mi14:12:273:17:279:058:37
11:31
+0:04
23M
23.00 mi14:25:373:30:379:0913:10
10:31
-1:00
24M
24.00 mi14:35:133:40:139:119:36
9:36
-0:55
40K
24.85 mi14:44:273:49:279:149:14
10:48
+1:12
25.2M
25.20 mi14:48:253:53:259:163:58
11:30
+0:42
Finish
26.22 mi14:58:424:03:429:1810:17
10:05
-1:25

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

8:11 /mi

Average Pace

9:18 /mi

Slowest Pace

11:31 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:12:52

55% of race

Time at Steady Pace

32:18

13% of race

Time at Slower Pace

1:18:32

32% of race

Average Pace: 9:18 /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 mi11:21:4226:428:3626:42
8:36
#20419
10K
6.21 mi11:47:0752:078:2325:25
8:11
#19161
15K
9.32 mi12:13:161:18:168:2426:09
8:25
#19006
20K
12.43 mi12:40:141:45:148:2826:58
8:41
#19057
Half
13.11 mi12:46:031:51:038:285:49
8:32
#19065
25K
15.53 mi13:07:522:12:528:3321:49
9:00
#19215
30K
18.64 mi13:39:582:44:588:5132:06
10:20
#20132
20M
20.00 mi13:52:232:57:238:5212:25
9:08
#19927
21M
21.00 mi14:03:503:08:509:0011:27
11:27
#20162
35K
21.75 mi14:12:273:17:279:058:37
11:31
#20491
23M
23.00 mi14:25:373:30:379:0913:10
10:31
#20628
24M
24.00 mi14:35:133:40:139:119:36
9:36
#20617
40K
24.85 mi14:44:273:49:279:149:14
10:48
#20750
25.2M
25.20 mi14:48:253:53:259:163:58
11:30
#20763
Finish
26.22 mi14:58:424:03:429:1810:17
10:05
#20848
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi20419126091260918809(Top 66%)11971(Top 74%)11971(Top 951%)
10K6.21 mi3.10 mi19161+125812113+49612113+49617754(Top 63%)11556(Top 72%)11556(Top 918%)
15K9.32 mi3.11 mi19006+15512037+7612037+7618809(Top 66%)11971(Top 74%)11971(Top 951%)
20K12.43 mi3.11 mi19057-5112065-2812065-2819313(Top 68%)12172(Top 76%)12172(Top 967%)
Half13.11 mi0.68 mi19065-812066-112066-119353(Top 68%)12207(Top 76%)12207(Top 970%)
25K15.53 mi2.42 mi19215-15012125-5912125-5919885(Top 70%)12363(Top 77%)12363(Top 982%)
30K18.64 mi3.11 mi20132-91712474-34912474-34922543(Top 79%)13410(Top 83%)13410(Top 1065%)
20M20.00 mi1.36 mi19927+20512369+10512369+10517482(Top 62%)11030(Top 68%)11030(Top 876%)
21M21.00 mi1.00 mi20162-23512433-6412433-6422513(Top 79%)13205(Top 82%)13205(Top 1049%)
35K21.75 mi0.75 mi20491-32912575-14212575-14225123(Top 88%)14405(Top 89%)14405(Top 1144%)
23M23.00 mi1.25 mi20628-13712615-4012615-4022049(Top 78%)12901(Top 80%)12901(Top 1025%)
24M24.00 mi1.00 mi20617+1112592+2312592+2319980(Top 70%)11863(Top 74%)11863(Top 942%)
40K24.85 mi0.85 mi20750-13312638-4612638-4622666(Top 80%)13072(Top 81%)13072(Top 1038%)
25.2M25.20 mi0.35 mi20763-1312625+1312625+1322016(Top 78%)12791(Top 79%)12791(Top 1016%)
Finish26.22 mi1.02 mi20848-8512652-2712652-2723183(Top 82%)13362(Top 83%)13362(Top 1061%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 66%
×21story building
+97ft-345ft

Overall

18809

Males

11971

M60-64

11971

5K→10K

3.1 - 6.2 mi

Top 63%
×5story building
+79ft-138ft

Overall

17754

Males

11556

M60-64

11556

10K→15K

6.2 - 9.3 mi

Top 66%
×3story building
+67ft-78ft

Overall

18809

Males

11971

M60-64

11971

15K→20K

9.3 - 12.4 mi

Top 68%
×5story building
+106ft-86ft

Overall

19313

Males

12172

M60-64

12172

20K→Half

12.4 - 13.1 mi

Top 68%
×2story building
+19ft-37ft

Overall

19353

Males

12207

M60-64

12207

Half→25K

13.1 - 15.5 mi

Top 70%
×4story building
+66ft-88ft

Overall

19885

Males

12363

M60-64

12363

25K→30K

15.5 - 18.6 mi

Top 79%
×9story building
+181ft-148ft

Overall

22543

Males

13410

M60-64

13410

30K→20M

18.6 - 20.0 mi

Top 62%
×5story building
+64ft-50ft

Overall

17482

Males

11030

M60-64

11030

20M→21M

20.0 - 21.0 mi

Top 79%
×8story building
+106ft-24ft

Overall

22513

Males

13205

M60-64

13205

21M→35K

21.0 - 21.8 mi

Top 88%
×7story building
+17ft-86ft

Overall

25123

Males

14405

M60-64

14405

35K→23M

21.8 - 23.0 mi

Top 78%
×5story building
+23ft-63ft

Overall

22049

Males

12901

M60-64

12901

23M→24M

23.0 - 24.0 mi

Top 70%
×6story building
+12ft-82ft

Overall

19980

Males

11863

M60-64

11863

24M→40K

24.0 - 24.9 mi

Top 80%
×1story
+6ft-20ft

Overall

22666

Males

13072

M60-64

13072

40K→25.2M

24.9 - 25.2 mi

Top 78%
×1story
+13ft-16ft

Overall

22016

Males

12791

M60-64

12791

25.2M→Finish

25.2 - 26.2 mi

Top 82%
×2story building
+22ft-21ft

Overall

23183

Males

13362

M60-64

13362

Passing Analysis

Category:
Athletes Passed
2397
Passed By
2826
Net Change
-429
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20419
5K → 10K127719+1258#20419#19161
10K → 15K276121+155#19161#19006
15K → 20K184235-51#19006#19057
20K → Half2937-8#19057#19065
Half → 25K127277-150#19065#19215
25K → 30K48965-917#19215#20132
30K → 20M22520+205#20132#19927
20M → 21M40275-235#19927#20162
21M → 35K11340-329#20162#20491
35K → 23M55192-137#20491#20628
23M → 24M6756+11#20628#20617
24M → 40K19152-133#20617#20750
40K → 25.2M2639-13#20750#20763
25.2M → Finish1398-85#20763#20848
TOTALS23972826-429
📊

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