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BOSTON MARATHON 2025

Jungyong Kim

Bib: 21984•M

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M65-69)
#0 / 639
Top 32%
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
8:17/mi
25:43
↑ 97↓ 3451.5%
10K· 6.21 mi
8:18/mi
51:30
↑ 79↓ 1380.4%
15K· 9.32 mi
8:21/mi
1:17:28
↑ 67↓ 78
20K· 12.43 mi
8:36/mi
1:44:10
↑ 106↓ 860.1%
Half· 13.11 mi
8:27/mi
1:49:56
↑ 19↓ 370.5%
25K· 15.53 mi
8:57/mi
2:11:39
↑ 66↓ 880.2%
30K· 18.64 mi
9:31/mi
2:41:13
↑ 181↓ 1480.2%
20M
9:20/mi
2:53:54
↑ 64↓ 500.2%
21M
10:12/mi
3:04:06
↑ 106↓ 241.6%
35K· 21.75 mi
8:59/mi
3:10:49
↑ 17↓ 861.7%
23M
9:32/mi
3:22:45
↑ 23↓ 630.6%
24M
9:19/mi
3:32:04
↓ 821.3%
40K· 24.85 mi
9:38/mi
3:40:18
↓ 200.3%
25.2M
11:01/mi
3:44:06
↑ 13↓ 160.2%
Finish· 26.22 mi
9:35/mi
3:53:52
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:49:56
Pace8:23 /mi
2nd Half
Distance13.11 mi
Time2:03:56
Pace9:27 /mi
📊Positive Split: 12.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:21:0725:438:1725:43
8:17
-
10K
6.21 mi11:46:5451:308:1725:47
8:18
+0:01
15K
9.32 mi12:12:521:17:288:1925:58
8:21
+0:03
20K
12.43 mi12:39:341:44:108:2326:42
8:36
+0:15
Half
13.11 mi12:45:201:49:568:235:46
8:27
-0:09
25K
15.53 mi13:07:032:11:398:2821:43
8:57
+0:30
30K
18.64 mi13:36:372:41:138:3929:34
9:31
+0:34
20M
20.00 mi13:49:182:53:548:4212:41
9:20
-0:11
21M
21.00 mi13:59:303:04:068:4610:12
10:12
+0:52
35K
21.75 mi14:06:133:10:498:466:43
8:59
-1:13
23M
23.00 mi14:18:093:22:458:4911:56
9:32
+0:33
24M
24.00 mi14:27:283:32:048:509:19
9:19
-0:13
40K
24.85 mi14:35:423:40:188:528:14
9:38
+0:19
25.2M
25.20 mi14:39:303:44:068:543:48
11:01
+1:23
Finish
26.22 mi14:49:163:53:528:569:46
9:35
-1:26

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

8:17 /mi

Average Pace

8:56 /mi

Slowest Pace

11:01 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:49:56

47% of race

Time at Steady Pace

1:49:56

47% of race

Time at Slower Pace

14:00

6% of race

Average Pace: 8:55 /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 mi11:21:0725:438:1725:43
8:17
#18570
10K
6.21 mi11:46:5451:308:1725:47
8:18
#18531
15K
9.32 mi12:12:521:17:288:1925:58
8:21
#18468
20K
12.43 mi12:39:341:44:108:2326:42
8:36
#18536
Half
13.11 mi12:45:201:49:568:235:46
8:27
#18550
25K
15.53 mi13:07:032:11:398:2821:43
8:57
#18759
30K
18.64 mi13:36:372:41:138:3929:34
9:31
#19031
20M
20.00 mi13:49:182:53:548:4212:41
9:20
#19003
21M
21.00 mi13:59:303:04:068:4610:12
10:12
#18991
35K
21.75 mi14:06:133:10:498:466:43
8:59
#18964
23M
23.00 mi14:18:093:22:458:4911:56
9:32
#18957
24M
24.00 mi14:27:283:32:048:509:19
9:19
#18965
40K
24.85 mi14:35:423:40:188:528:14
9:38
#18954
25.2M
25.20 mi14:39:303:44:068:543:48
11:01
#18996
Finish
26.22 mi14:49:163:53:528:569:46
9:35
#19106
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM65-69Seg. OverallSeg. MalesSeg. M65-69
5K3.11 mi3.11 mi18570118481184818424(Top 65%)11805(Top 73%)11805(Top 1847%)
10K6.21 mi3.10 mi18531+3911844+411844+418538(Top 65%)11866(Top 74%)11866(Top 1857%)
15K9.32 mi3.11 mi18468+6311811+3311811+3318424(Top 65%)11805(Top 73%)11805(Top 1847%)
20K12.43 mi3.11 mi18536-6811840-2911840-2918803(Top 66%)11951(Top 74%)11951(Top 1870%)
Half13.11 mi0.68 mi18550-1411850-1011850-1018869(Top 66%)11994(Top 74%)11994(Top 1877%)
25K15.53 mi2.42 mi18759-20911925-7511925-7519704(Top 69%)12281(Top 76%)12281(Top 1922%)
30K18.64 mi3.11 mi19031-27212003-7812003-7819998(Top 70%)12284(Top 76%)12284(Top 1922%)
20M20.00 mi1.36 mi19003+2811967+3611967+3618429(Top 65%)11417(Top 71%)11417(Top 1787%)
21M21.00 mi1.00 mi18991+1211936+3111936+3119011(Top 67%)11622(Top 72%)11622(Top 1819%)
35K21.75 mi0.75 mi18964+2711907+2911907+2918115(Top 64%)11105(Top 69%)11105(Top 1738%)
23M23.00 mi1.25 mi18957+711878+2911878+2918827(Top 66%)11369(Top 71%)11369(Top 1779%)
24M24.00 mi1.00 mi18965-811861+1711861+1718875(Top 66%)11348(Top 70%)11348(Top 1776%)
40K24.85 mi0.85 mi18954+1111829+3211829+3219191(Top 68%)11419(Top 71%)11419(Top 1787%)
25.2M25.20 mi0.35 mi18996-4211836-711836-720662(Top 73%)12109(Top 75%)12109(Top 1895%)
Finish26.22 mi1.02 mi19106-11011866-3011866-3021472(Top 76%)12519(Top 78%)12519(Top 1959%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 65%
×21story building
+97ft-345ft

Overall

18424

Males

11805

M65-69

11805

5K→10K

3.1 - 6.2 mi

Top 65%
×5story building
+79ft-138ft

Overall

18538

Males

11866

M65-69

11866

10K→15K

6.2 - 9.3 mi

Top 65%
×3story building
+67ft-78ft

Overall

18424

Males

11805

M65-69

11805

15K→20K

9.3 - 12.4 mi

Top 66%
×5story building
+106ft-86ft

Overall

18803

Males

11951

M65-69

11951

20K→Half

12.4 - 13.1 mi

Top 66%
×2story building
+19ft-37ft

Overall

18869

Males

11994

M65-69

11994

Half→25K

13.1 - 15.5 mi

Top 69%
×4story building
+66ft-88ft

Overall

19704

Males

12281

M65-69

12281

25K→30K

15.5 - 18.6 mi

Top 70%
×9story building
+181ft-148ft

Overall

19998

Males

12284

M65-69

12284

30K→20M

18.6 - 20.0 mi

Top 65%
×5story building
+64ft-50ft

Overall

18429

Males

11417

M65-69

11417

20M→21M

20.0 - 21.0 mi

Top 67%
×8story building
+106ft-24ft

Overall

19011

Males

11622

M65-69

11622

21M→35K

21.0 - 21.8 mi

Top 64%
×7story building
+17ft-86ft

Overall

18115

Males

11105

M65-69

11105

35K→23M

21.8 - 23.0 mi

Top 66%
×5story building
+23ft-63ft

Overall

18827

Males

11369

M65-69

11369

23M→24M

23.0 - 24.0 mi

Top 66%
×6story building
+12ft-82ft

Overall

18875

Males

11348

M65-69

11348

24M→40K

24.0 - 24.9 mi

Top 68%
×1story
+6ft-20ft

Overall

19191

Males

11419

M65-69

11419

40K→25.2M

24.9 - 25.2 mi

Top 73%
×1story
+13ft-16ft

Overall

20662

Males

12109

M65-69

12109

25.2M→Finish

25.2 - 26.2 mi

Top 76%
×2story building
+22ft-21ft

Overall

21472

Males

12519

M65-69

12519

Passing Analysis

Category:
Athletes Passed
1550
Passed By
2086
Net Change
-536
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18570
5K → 10K287248+39#18570#18531
10K → 15K215152+63#18531#18468
15K → 20K178246-68#18468#18536
20K → Half2842-14#18536#18550
Half → 25K105314-209#18550#18759
25K → 30K167439-272#18759#19031
30K → 20M11789+28#19031#19003
20M → 21M10391+12#19003#18991
21M → 35K7043+27#18991#18964
35K → 23M9992+7#18964#18957
23M → 24M6573-8#18957#18965
24M → 40K7867+11#18965#18954
40K → 25.2M1860-42#18954#18996
25.2M → Finish20130-110#18996#19106
TOTALS15502086-536
📊

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