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BOSTON MARATHON 2025

Sungkwan Hong

Bib: 23977•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M70-74)
#0 / 228
Top 17%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:23
Rank: #17877
Start → 5K
25:23 | 8:10/mi
10K· 6.21 mi
53:02
Rank: #20041 (-2164)
5K → 10K
27:39 | 8:54/mi
15K· 9.32 mi
1:19:18
Rank: #19708 (+333)
10K → 15K
26:16 | 8:27/mi
20K· 12.43 mi
1:47:12
Rank: #20005 (-297)
15K → 20K
27:54 | 8:59/mi
Half· 13.11 mi
1:53:22
Rank: #20101 (-96)
20K → Half
6:10 | 9:02/mi
25K· 15.53 mi
2:15:33
Rank: #20213 (-112)
Half → 25K
22:11 | 9:09/mi
30K· 18.64 mi
2:44:42
Rank: #20068 (+145)
25K → 30K
29:09 | 9:23/mi
20M
2:57:35
Rank: #19984 (+84)
30K → 20M
12:53 | 9:29/mi
21M
3:07:44
Rank: #19897 (+87)
20M → 21M
10:09 | 10:09/mi
35K· 21.75 mi
3:14:47
Rank: #19908 (-11)
21M → 35K
7:03 | 9:25/mi
23M
3:26:55
Rank: #19891 (+17)
35K → 23M
12:08 | 9:41/mi
24M
3:36:35
Rank: #19919 (-28)
23M → 24M
9:40 | 9:40/mi
40K· 24.85 mi
3:44:49
Rank: #19896 (+23)
24M → 40K
8:14 | 9:38/mi
25.2M
3:48:37
Rank: #19906 (-10)
40K → 25.2M
3:48 | 11:01/mi
Finish· 26.22 mi
3:58:29
Rank: #20049 (-143)
25.2M → Finish
9:52 | 9:41/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:53:22
Pace8:39 /mi
2nd Half
Distance13.11 mi
Time2:05:07
Pace9:33 /mi
📊Positive Split: 10.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:23:5925:238:1025:23
8:10
-
10K
6.21 mi11:51:3853:028:3227:39
8:54
+0:44
15K
9.32 mi12:17:541:19:188:3026:16
8:27
-0:27
20K
12.43 mi12:45:481:47:128:3827:54
8:59
+0:32
Half
13.11 mi12:51:581:53:228:396:10
9:02
+0:03
25K
15.53 mi13:14:092:15:338:4422:11
9:09
+0:07
30K
18.64 mi13:43:182:44:428:5029:09
9:23
+0:14
20M
20.00 mi13:56:112:57:358:5312:53
9:29
+0:06
21M
21.00 mi14:06:203:07:448:5610:09
10:09
+0:40
35K
21.75 mi14:13:233:14:478:577:03
9:25
-0:44
23M
23.00 mi14:25:313:26:559:0012:08
9:41
+0:16
24M
24.00 mi14:35:113:36:359:019:40
9:40
-0:01
40K
24.85 mi14:43:253:44:499:038:14
9:38
-0:02
25.2M
25.20 mi14:47:133:48:379:043:48
11:01
+1:23
Finish
26.22 mi14:57:053:58:299:069:52
9:41
-1:20

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

8:10 /mi

Average Pace

9:06 /mi

Slowest Pace

11:01 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:53:22

48% of race

Time at Steady Pace

1:51:10

47% of race

Time at Slower Pace

13:57

6% of race

Average Pace: 9:06 /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 mi11:23:5925:238:1025:23
8:10
#17877
10K
6.21 mi11:51:3853:028:3227:39
8:54
#20041
15K
9.32 mi12:17:541:19:188:3026:16
8:27
#19708
20K
12.43 mi12:45:481:47:128:3827:54
8:59
#20005
Half
13.11 mi12:51:581:53:228:396:10
9:02
#20101
25K
15.53 mi13:14:092:15:338:4422:11
9:09
#20213
30K
18.64 mi13:43:182:44:428:5029:09
9:23
#20068
20M
20.00 mi13:56:112:57:358:5312:53
9:29
#19984
21M
21.00 mi14:06:203:07:448:5610:09
10:09
#19897
35K
21.75 mi14:13:233:14:478:577:03
9:25
#19908
23M
23.00 mi14:25:313:26:559:0012:08
9:41
#19891
24M
24.00 mi14:35:113:36:359:019:40
9:40
#19919
40K
24.85 mi14:43:253:44:499:038:14
9:38
#19896
25.2M
25.20 mi14:47:133:48:379:043:48
11:01
#19906
Finish
26.22 mi14:57:053:58:299:069:52
9:41
#20049
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM70-74Seg. OverallSeg. MalesSeg. M70-74
5K3.11 mi3.11 mi17877115541155419041(Top 67%)12060(Top 75%)12060(Top 5289%)
10K6.21 mi3.10 mi20041-216412489-93512489-93521913(Top 77%)13300(Top 83%)13300(Top 5833%)
15K9.32 mi3.11 mi19708+33312353+13612353+13619041(Top 67%)12060(Top 75%)12060(Top 5289%)
20K12.43 mi3.11 mi20005-29712472-11912472-11920845(Top 73%)12816(Top 80%)12816(Top 5621%)
Half13.11 mi0.68 mi20101-9612510-3812510-3821947(Top 77%)13306(Top 83%)13306(Top 5836%)
25K15.53 mi2.42 mi20213-11212544-3412544-3420552(Top 72%)12652(Top 79%)12652(Top 5549%)
30K18.64 mi3.11 mi20068+14512452+9212452+9219458(Top 69%)12036(Top 75%)12036(Top 5279%)
20M20.00 mi1.36 mi19984+8412392+6012392+6019066(Top 67%)11714(Top 73%)11714(Top 5138%)
21M21.00 mi1.00 mi19897+8712330+6212330+6218833(Top 66%)11525(Top 72%)11525(Top 5055%)
35K21.75 mi0.75 mi19908-1112321+912321+920002(Top 70%)11959(Top 74%)11959(Top 5245%)
23M23.00 mi1.25 mi19891+1712275+4612275+4619389(Top 68%)11610(Top 72%)11610(Top 5092%)
24M24.00 mi1.00 mi19919-2812261+1412261+1420234(Top 71%)11966(Top 74%)11966(Top 5248%)
40K24.85 mi0.85 mi19896+2312238+2312238+2319163(Top 67%)11391(Top 71%)11391(Top 4996%)
25.2M25.20 mi0.35 mi19906-1012235+312235+320623(Top 73%)12070(Top 75%)12070(Top 5294%)
Finish26.22 mi1.02 mi20049-14312286-5112286-5121827(Top 77%)12691(Top 79%)12691(Top 5566%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 67%
×21stories
+97ft-345ft

Overall

19041

Males

12060

M70-74

12060

5K→10K

3.1 - 6.2 mi

Top 77%
×5stories
+79ft-138ft

Overall

21913

Males

13300

M70-74

13300

10K→15K

6.2 - 9.3 mi

Top 67%
×3stories
+67ft-78ft

Overall

19041

Males

12060

M70-74

12060

15K→20K

9.3 - 12.4 mi

Top 73%
×5stories
+106ft-86ft

Overall

20845

Males

12816

M70-74

12816

20K→Half

12.4 - 13.1 mi

Top 77%
×2stories
+19ft-37ft

Overall

21947

Males

13306

M70-74

13306

Half→25K

13.1 - 15.5 mi

Top 72%
×4stories
+66ft-88ft

Overall

20552

Males

12652

M70-74

12652

25K→30K

15.5 - 18.6 mi

Top 69%
×9stories
+181ft-148ft

Overall

19458

Males

12036

M70-74

12036

30K→20M

18.6 - 20.0 mi

Top 67%
×5stories
+64ft-50ft

Overall

19066

Males

11714

M70-74

11714

20M→21M

20.0 - 21.0 mi

Top 66%
×8stories
+106ft-24ft

Overall

18833

Males

11525

M70-74

11525

21M→35K

21.0 - 21.8 mi

Top 70%
×7stories
+17ft-86ft

Overall

20002

Males

11959

M70-74

11959

35K→23M

21.8 - 23.0 mi

Top 68%
×5stories
+23ft-63ft

Overall

19389

Males

11610

M70-74

11610

23M→24M

23.0 - 24.0 mi

Top 71%
×6stories
+12ft-82ft

Overall

20234

Males

11966

M70-74

11966

24M→40K

24.0 - 24.9 mi

Top 67%
×1story
+6ft-20ft

Overall

19163

Males

11391

M70-74

11391

40K→25.2M

24.9 - 25.2 mi

Top 73%
×1story
+13ft-16ft

Overall

20623

Males

12070

M70-74

12070

25.2M→Finish

25.2 - 26.2 mi

Top 77%
×2stories
+22ft-21ft

Overall

21827

Males

12691

M70-74

12691

Passing Analysis

Category:
Athletes Passed
1550
Passed By
3722
Net Change
-2172
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17877
5K → 10K132177-2164#17877#20041
10K → 15K39057+333#20041#19708
15K → 20K116413-297#19708#20005
20K → Half13109-96#20005#20101
Half → 25K122234-112#20101#20213
25K → 30K298153+145#20213#20068
30K → 20M14157+84#20068#19984
20M → 21M13346+87#19984#19897
21M → 35K5061-11#19897#19908
35K → 23M9679+17#19908#19891
23M → 24M5886-28#19891#19919
24M → 40K7653+23#19919#19896
40K → 25.2M2232-10#19896#19906
25.2M → Finish22165-143#19906#20049
TOTALS15503722-2172
📊

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