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BOSTON MARATHON 2025

Kangsoon Park

Bib: 5914•M

BC

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 16%
Gender (Male)
#0 / 16105
Top 26%
Masters (Masters Men)
#0 / 10463
Top 13%
Division (M50-54)
#0 / 1996
Top 7%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:46
Rank: #5291
Start → 5K
20:46 | 6:41/mi
10K· 6.21 mi
41:37
Rank: #5331 (-40)
5K → 10K
20:51 | 6:43/mi
15K· 9.32 mi
1:02:27
Rank: #5259 (+72)
10K → 15K
20:50 | 6:42/mi
20K· 12.43 mi
1:23:26
Rank: #5108 (+151)
15K → 20K
20:59 | 6:45/mi
Half· 13.11 mi
1:28:01
Rank: #5117 (-9)
20K → Half
4:35 | 6:43/mi
25K· 15.53 mi
1:44:22
Rank: #4961 (+156)
Half → 25K
16:21 | 6:45/mi
30K· 18.64 mi
2:05:57
Rank: #4801 (+160)
25K → 30K
21:35 | 6:57/mi
20M
2:15:34
Rank: #4763 (+38)
30K → 20M
9:37 | 7:05/mi
21M
2:22:51
Rank: #4626 (+137)
20M → 21M
7:17 | 7:17/mi
35K· 21.75 mi
2:27:58
Rank: #4584 (+42)
21M → 35K
5:07 | 6:50/mi
23M
2:36:54
Rank: #4548 (+36)
35K → 23M
8:56 | 7:08/mi
24M
2:43:50
Rank: #4520 (+28)
23M → 24M
6:56 | 6:56/mi
40K· 24.85 mi
2:49:57
Rank: #4519 (+1)
24M → 40K
6:07 | 7:09/mi
25.2M
2:52:46
Rank: #4569 (-50)
40K → 25.2M
2:49 | 8:10/mi
Finish· 26.22 mi
2:59:52
Rank: #4654 (-85)
25.2M → Finish
7:06 | 6:58/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:28:01
Pace6:43 /mi
2nd Half
Distance13.11 mi
Time1:31:51
Pace7:00 /mi
📊Positive Split: 4.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:26:1720:466:4120:46
6:41
-
10K
6.21 mi10:47:0841:376:4220:51
6:43
+0:02
15K
9.32 mi11:07:581:02:276:4220:50
6:42
-0:01
20K
12.43 mi11:28:571:23:266:4320:59
6:45
+0:03
Half
13.11 mi11:33:321:28:016:434:35
6:43
-0:02
25K
15.53 mi11:49:531:44:226:4316:21
6:45
+0:02
30K
18.64 mi12:11:282:05:576:4521:35
6:57
+0:12
20M
20.00 mi12:21:052:15:346:479:37
7:05
+0:08
21M
21.00 mi12:28:222:22:516:487:17
7:17
+0:12
35K
21.75 mi12:33:292:27:586:485:07
6:50
-0:27
23M
23.00 mi12:42:252:36:546:498:56
7:08
+0:18
24M
24.00 mi12:49:212:43:506:506:56
6:56
-0:12
40K
24.85 mi12:55:282:49:576:506:07
7:09
+0:13
25.2M
25.20 mi12:58:172:52:466:512:49
8:10
+1:01
Finish
26.22 mi13:05:232:59:526:527:06
6:58
-1:12

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

6:41 /mi

Average Pace

6:52 /mi

Slowest Pace

8:10 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:44:22

58% of race

Time at Steady Pace

50:21

28% of race

Time at Slower Pace

25:09

14% of race

Average Pace: 6:52 /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 mi10:26:1720:466:4120:46
6:41
#5291
10K
6.21 mi10:47:0841:376:4220:51
6:43
#5331
15K
9.32 mi11:07:581:02:276:4220:50
6:42
#5259
20K
12.43 mi11:28:571:23:266:4320:59
6:45
#5108
Half
13.11 mi11:33:321:28:016:434:35
6:43
#5117
25K
15.53 mi11:49:531:44:226:4316:21
6:45
#4961
30K
18.64 mi12:11:282:05:576:4521:35
6:57
#4801
20M
20.00 mi12:21:052:15:346:479:37
7:05
#4763
21M
21.00 mi12:28:222:22:516:487:17
7:17
#4626
35K
21.75 mi12:33:292:27:586:485:07
6:50
#4584
23M
23.00 mi12:42:252:36:546:498:56
7:08
#4548
24M
24.00 mi12:49:212:43:506:506:56
6:56
#4520
40K
24.85 mi12:55:282:49:576:506:07
7:09
#4519
25.2M
25.20 mi12:58:172:52:466:512:49
8:10
#4569
Finish
26.22 mi13:05:232:59:526:527:06
6:58
#4654
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi5291492249225113(Top 18%)4738(Top 29%)4738(Top 237%)
10K6.21 mi3.10 mi5331-404942-204942-205426(Top 19%)5010(Top 31%)5010(Top 251%)
15K9.32 mi3.11 mi5259+724879+634879+635113(Top 18%)4738(Top 29%)4738(Top 237%)
20K12.43 mi3.11 mi5108+1514743+1364743+1364864(Top 17%)4501(Top 28%)4501(Top 226%)
Half13.11 mi0.68 mi5117-94749-64749-65360(Top 19%)4915(Top 31%)4915(Top 246%)
25K15.53 mi2.42 mi4961+1564607+1424607+1424425(Top 16%)4097(Top 25%)4097(Top 205%)
30K18.64 mi3.11 mi4801+1604443+1644443+1644369(Top 15%)4000(Top 25%)4000(Top 200%)
20M20.00 mi1.36 mi4763+384410+334410+334532(Top 16%)4116(Top 26%)4116(Top 206%)
21M21.00 mi1.00 mi4626+1374290+1204290+1203537(Top 12%)3236(Top 20%)3236(Top 162%)
35K21.75 mi0.75 mi4584+424246+444246+444318(Top 15%)3847(Top 24%)3847(Top 193%)
23M23.00 mi1.25 mi4548+364195+514195+514503(Top 16%)3954(Top 25%)3954(Top 198%)
24M24.00 mi1.00 mi4520+284166+294166+294243(Top 15%)3724(Top 23%)3724(Top 187%)
40K24.85 mi0.85 mi4519+14153+134153+134756(Top 17%)4034(Top 25%)4034(Top 202%)
25.2M25.20 mi0.35 mi4569-504194-414194-416762(Top 24%)5181(Top 32%)5181(Top 260%)
Finish26.22 mi1.02 mi4654-854266-724266-725478(Top 19%)4402(Top 27%)4402(Top 221%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 18%
×21stories
+97ft-345ft

Overall

5113

Males

4738

M50-54

4738

5K→10K

3.1 - 6.2 mi

Top 19%
×5stories
+79ft-138ft

Overall

5426

Males

5010

M50-54

5010

10K→15K

6.2 - 9.3 mi

Top 18%
×3stories
+67ft-78ft

Overall

5113

Males

4738

M50-54

4738

15K→20K

9.3 - 12.4 mi

Top 17%
×5stories
+106ft-86ft

Overall

4864

Males

4501

M50-54

4501

20K→Half

12.4 - 13.1 mi

Top 19%
×2stories
+19ft-37ft

Overall

5360

Males

4915

M50-54

4915

Half→25K

13.1 - 15.5 mi

Top 16%
×4stories
+66ft-88ft

Overall

4425

Males

4097

M50-54

4097

25K→30K

15.5 - 18.6 mi

Top 15%
×9stories
+181ft-148ft

Overall

4369

Males

4000

M50-54

4000

30K→20M

18.6 - 20.0 mi

Top 16%
×5stories
+64ft-50ft

Overall

4532

Males

4116

M50-54

4116

20M→21M

20.0 - 21.0 mi

Top 12%
×8stories
+106ft-24ft

Overall

3537

Males

3236

M50-54

3236

21M→35K

21.0 - 21.8 mi

Top 15%
×7stories
+17ft-86ft

Overall

4318

Males

3847

M50-54

3847

35K→23M

21.8 - 23.0 mi

Top 16%
×5stories
+23ft-63ft

Overall

4503

Males

3954

M50-54

3954

23M→24M

23.0 - 24.0 mi

Top 15%
×6stories
+12ft-82ft

Overall

4243

Males

3724

M50-54

3724

24M→40K

24.0 - 24.9 mi

Top 17%
×1story
+6ft-20ft

Overall

4756

Males

4034

M50-54

4034

40K→25.2M

24.9 - 25.2 mi

Top 24%
×1story
+13ft-16ft

Overall

6762

Males

5181

M50-54

5181

25.2M→Finish

25.2 - 26.2 mi

Top 19%
×2stories
+22ft-21ft

Overall

5478

Males

4402

M50-54

4402

Passing Analysis

Category:
Athletes Passed
1509
Passed By
872
Net Change
+637
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5291
5K → 10K155195-40#5291#5331
10K → 15K16492+72#5331#5259
15K → 20K20756+151#5259#5108
20K → Half2231-9#5108#5117
Half → 25K17822+156#5117#4961
25K → 30K24181+160#4961#4801
30K → 20M8749+38#4801#4763
20M → 21M15013+137#4763#4626
21M → 35K6119+42#4626#4584
35K → 23M9256+36#4584#4548
23M → 24M7345+28#4548#4520
24M → 40K4948+1#4520#4519
40K → 25.2M1161-50#4519#4569
25.2M → Finish19104-85#4569#4654
TOTALS1509872+637
📊

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