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BOSTON MARATHON 2025

Youngrin Kim

Bib: 9652•M

NY

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 19%
Gender (Male)
#0 / 16105
Top 31%
Masters (Masters Men)
#0 / 10463
Top 17%
Division (M45-49)
#0 / 2386
Top 22%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:21
Rank: #6853
Start → 5K
21:21 | 6:52/mi
10K· 6.21 mi
42:31
Rank: #6690 (+163)
5K → 10K
21:10 | 6:49/mi
15K· 9.32 mi
1:03:31
Rank: #6342 (+348)
10K → 15K
21:00 | 6:46/mi
20K· 12.43 mi
1:25:03
Rank: #6346 (-4)
15K → 20K
21:32 | 6:56/mi
Half· 13.11 mi
1:29:39
Rank: #6304 (+42)
20K → Half
4:36 | 6:45/mi
25K· 15.53 mi
1:46:15
Rank: #6068 (+236)
Half → 25K
16:36 | 6:51/mi
30K· 18.64 mi
2:08:27
Rank: #5899 (+169)
25K → 30K
22:12 | 7:09/mi
20M
2:18:12
Rank: #5803 (+96)
30K → 20M
9:45 | 7:10/mi
21M
2:26:00
Rank: #5771 (+32)
20M → 21M
7:48 | 7:48/mi
35K· 21.75 mi
2:31:17
Rank: #5743 (+28)
21M → 35K
5:17 | 7:04/mi
23M
2:40:32
Rank: #5679 (+64)
35K → 23M
9:15 | 7:23/mi
24M
2:47:51
Rank: #5659 (+20)
23M → 24M
7:19 | 7:19/mi
40K· 24.85 mi
2:54:01
Rank: #5582 (+77)
24M → 40K
6:10 | 7:13/mi
25.2M
2:56:49
Rank: #5560 (+22)
40K → 25.2M
2:48 | 8:07/mi
Finish· 26.22 mi
3:03:49
Rank: #5474 (+86)
25.2M → Finish
7:00 | 6:52/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:29:39
Pace6:50 /mi
2nd Half
Distance13.11 mi
Time1:34:10
Pace7:11 /mi
📊Positive Split: 5.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:47:1821:216:5221:21
6:52
-
10K
6.21 mi11:08:2842:316:5121:10
6:49
-0:03
15K
9.32 mi11:29:281:03:316:4921:00
6:46
-0:03
20K
12.43 mi11:51:001:25:036:5121:32
6:56
+0:10
Half
13.11 mi11:55:361:29:396:504:36
6:45
-0:11
25K
15.53 mi12:12:121:46:156:5016:36
6:51
+0:06
30K
18.64 mi12:34:242:08:276:5322:12
7:09
+0:18
20M
20.00 mi12:44:092:18:126:559:45
7:10
+0:01
21M
21.00 mi12:51:572:26:006:577:48
7:48
+0:38
35K
21.75 mi12:57:142:31:176:575:17
7:04
-0:44
23M
23.00 mi13:06:292:40:326:599:15
7:23
+0:19
24M
24.00 mi13:13:482:47:517:007:19
7:19
-0:04
40K
24.85 mi13:19:582:54:017:006:10
7:13
-0:06
25.2M
25.20 mi13:22:462:56:497:012:48
8:07
+0:54
Finish
26.22 mi13:29:463:03:497:017:00
6:52
-1:15

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

6:45 /mi

Average Pace

7:01 /mi

Slowest Pace

8:07 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:31:43

50% of race

Time at Steady Pace

1:04:56

35% of race

Time at Slower Pace

27:10

15% of race

Average Pace: 7:01 /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 mi10:47:1821:216:5221:21
6:52
#6853
10K
6.21 mi11:08:2842:316:5121:10
6:49
#6690
15K
9.32 mi11:29:281:03:316:4921:00
6:46
#6342
20K
12.43 mi11:51:001:25:036:5121:32
6:56
#6346
Half
13.11 mi11:55:361:29:396:504:36
6:45
#6304
25K
15.53 mi12:12:121:46:156:5016:36
6:51
#6068
30K
18.64 mi12:34:242:08:276:5322:12
7:09
#5899
20M
20.00 mi12:44:092:18:126:559:45
7:10
#5803
21M
21.00 mi12:51:572:26:006:577:48
7:48
#5771
35K
21.75 mi12:57:142:31:176:575:17
7:04
#5743
23M
23.00 mi13:06:292:40:326:599:15
7:23
#5679
24M
24.00 mi13:13:482:47:517:007:19
7:19
#5659
40K
24.85 mi13:19:582:54:017:006:10
7:13
#5582
25.2M
25.20 mi13:22:462:56:497:012:48
8:07
#5560
Finish
26.22 mi13:29:463:03:497:017:00
6:52
#5474
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi6853619661965689(Top 20%)5193(Top 32%)5193(Top 218%)
10K6.21 mi3.10 mi6690+1636054+1426054+1426527(Top 23%)5904(Top 37%)5904(Top 247%)
15K9.32 mi3.11 mi6342+3485780+2745780+2745689(Top 20%)5193(Top 32%)5193(Top 218%)
20K12.43 mi3.11 mi6346-45759+215759+216423(Top 23%)5763(Top 36%)5763(Top 242%)
Half13.11 mi0.68 mi6304+425721+385721+385655(Top 20%)5175(Top 32%)5175(Top 217%)
25K15.53 mi2.42 mi6068+2365514+2075514+2075250(Top 18%)4812(Top 30%)4812(Top 202%)
30K18.64 mi3.11 mi5899+1695363+1515363+1515584(Top 20%)5002(Top 31%)5002(Top 210%)
20M20.00 mi1.36 mi5803+965270+935270+935076(Top 18%)4543(Top 28%)4543(Top 190%)
21M21.00 mi1.00 mi5771+325238+325238+326177(Top 22%)5178(Top 32%)5178(Top 217%)
35K21.75 mi0.75 mi5743+285204+345204+345776(Top 20%)4912(Top 30%)4912(Top 206%)
23M23.00 mi1.25 mi5679+645132+725132+725983(Top 21%)4961(Top 31%)4961(Top 208%)
24M24.00 mi1.00 mi5659+205102+305102+306501(Top 23%)5223(Top 32%)5223(Top 219%)
40K24.85 mi0.85 mi5582+775030+725030+725122(Top 18%)4293(Top 27%)4293(Top 180%)
25.2M25.20 mi0.35 mi5560+225007+235007+236560(Top 23%)5089(Top 32%)5089(Top 213%)
Finish26.22 mi1.02 mi5474+864926+814926+814904(Top 17%)4052(Top 25%)4052(Top 170%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 20%
×21stories
+97ft-345ft

Overall

5689

Males

5193

M45-49

5193

5K→10K

3.1 - 6.2 mi

Top 23%
×5stories
+79ft-138ft

Overall

6527

Males

5904

M45-49

5904

10K→15K

6.2 - 9.3 mi

Top 20%
×3stories
+67ft-78ft

Overall

5689

Males

5193

M45-49

5193

15K→20K

9.3 - 12.4 mi

Top 23%
×5stories
+106ft-86ft

Overall

6423

Males

5763

M45-49

5763

20K→Half

12.4 - 13.1 mi

Top 20%
×2stories
+19ft-37ft

Overall

5655

Males

5175

M45-49

5175

Half→25K

13.1 - 15.5 mi

Top 18%
×4stories
+66ft-88ft

Overall

5250

Males

4812

M45-49

4812

25K→30K

15.5 - 18.6 mi

Top 20%
×9stories
+181ft-148ft

Overall

5584

Males

5002

M45-49

5002

30K→20M

18.6 - 20.0 mi

Top 18%
×5stories
+64ft-50ft

Overall

5076

Males

4543

M45-49

4543

20M→21M

20.0 - 21.0 mi

Top 22%
×8stories
+106ft-24ft

Overall

6177

Males

5178

M45-49

5178

21M→35K

21.0 - 21.8 mi

Top 20%
×7stories
+17ft-86ft

Overall

5776

Males

4912

M45-49

4912

35K→23M

21.8 - 23.0 mi

Top 21%
×5stories
+23ft-63ft

Overall

5983

Males

4961

M45-49

4961

23M→24M

23.0 - 24.0 mi

Top 23%
×6stories
+12ft-82ft

Overall

6501

Males

5223

M45-49

5223

24M→40K

24.0 - 24.9 mi

Top 18%
×1story
+6ft-20ft

Overall

5122

Males

4293

M45-49

4293

40K→25.2M

24.9 - 25.2 mi

Top 23%
×1story
+13ft-16ft

Overall

6560

Males

5089

M45-49

5089

25.2M→Finish

25.2 - 26.2 mi

Top 17%
×2stories
+22ft-21ft

Overall

4904

Males

4052

M45-49

4052

Passing Analysis

Category:
Athletes Passed
2018
Passed By
639
Net Change
+1379
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6853
5K → 10K277114+163#6853#6690
10K → 15K37426+348#6690#6342
15K → 20K141145-4#6342#6346
20K → Half475+42#6346#6304
Half → 25K25418+236#6304#6068
25K → 30K26596+169#6068#5899
30K → 20M12327+96#5899#5803
20M → 21M7745+32#5803#5771
21M → 35K5628+28#5771#5743
35K → 23M10541+64#5743#5679
23M → 24M6646+20#5679#5659
24M → 40K9619+77#5659#5582
40K → 25.2M3513+22#5582#5560
25.2M → Finish10216+86#5560#5474
TOTALS2018639+1379
📊

Passing Visuals

Category:

📈Position Graph

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🎨Heatmap Timeline

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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