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BOSTON MARATHON 2025

Hyunwoo Kim

Bib: 8703•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 20%
Gender (Male)
#0 / 16105
Top 32%
Masters (Masters Men)
#0 / 10463
Top 18%
Division (M50-54)
#0 / 1996
Top 12%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:18
Rank: #9265
Start → 5K
22:18 | 7:11/mi
10K· 6.21 mi
44:01
Rank: #8525 (+740)
5K → 10K
21:43 | 6:59/mi
15K· 9.32 mi
1:05:31
Rank: #7963 (+562)
10K → 15K
21:30 | 6:55/mi
20K· 12.43 mi
1:26:56
Rank: #7464 (+499)
15K → 20K
21:25 | 6:54/mi
Half· 13.11 mi
1:31:44
Rank: #7472 (-8)
20K → Half
4:48 | 7:02/mi
25K· 15.53 mi
1:48:54
Rank: #7326 (+146)
Half → 25K
17:10 | 7:05/mi
30K· 18.64 mi
2:10:50
Rank: #6789 (+537)
25K → 30K
21:56 | 7:04/mi
20M
2:20:18
Rank: #6477 (+312)
30K → 20M
9:28 | 6:58/mi
21M
2:27:46
Rank: #6301 (+176)
20M → 21M
7:28 | 7:28/mi
35K· 21.75 mi
2:32:57
Rank: #6225 (+76)
21M → 35K
5:11 | 6:56/mi
23M
2:41:50
Rank: #6014 (+211)
35K → 23M
8:53 | 7:06/mi
24M
2:48:51
Rank: #5920 (+94)
23M → 24M
7:01 | 7:01/mi
40K· 24.85 mi
2:54:54
Rank: #5796 (+124)
24M → 40K
6:03 | 7:05/mi
25.2M
2:57:41
Rank: #5766 (+30)
40K → 25.2M
2:47 | 8:04/mi
Finish· 26.22 mi
3:04:50
Rank: #5711 (+55)
25.2M → Finish
7:09 | 7:01/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:31:44
Pace7:00 /mi
2nd Half
Distance13.11 mi
Time1:33:06
Pace7:06 /mi
📊Positive Split: 1.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:48:1922:187:1122:18
7:11
-
10K
6.21 mi11:10:0244:017:0521:43
6:59
-0:12
15K
9.32 mi11:31:321:05:317:0221:30
6:55
-0:04
20K
12.43 mi11:52:571:26:567:0021:25
6:54
-0:01
Half
13.11 mi11:57:451:31:447:004:48
7:02
+0:08
25K
15.53 mi12:14:551:48:547:0117:10
7:05
+0:03
30K
18.64 mi12:36:512:10:507:0121:56
7:04
-0:01
20M
20.00 mi12:46:192:20:187:019:28
6:58
-0:06
21M
21.00 mi12:53:472:27:467:027:28
7:28
+0:30
35K
21.75 mi12:58:582:32:577:025:11
6:56
-0:32
23M
23.00 mi13:07:512:41:507:028:53
7:06
+0:10
24M
24.00 mi13:14:522:48:517:027:01
7:01
-0:05
40K
24.85 mi13:20:552:54:547:026:03
7:05
+0:04
25.2M
25.20 mi13:23:422:57:417:032:47
8:04
+0:59
Finish
26.22 mi13:30:513:04:507:037:09
7:01
-1:03

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

6:54 /mi

Average Pace

7:03 /mi

Slowest Pace

8:04 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:02:03

98% of race

Time at Steady Pace

2:47

2% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:03 /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 mi10:48:1922:187:1122:18
7:11
#9265
10K
6.21 mi11:10:0244:017:0521:43
6:59
#8525
15K
9.32 mi11:31:321:05:317:0221:30
6:55
#7963
20K
12.43 mi11:52:571:26:567:0021:25
6:54
#7464
Half
13.11 mi11:57:451:31:447:004:48
7:02
#7472
25K
15.53 mi12:14:551:48:547:0117:10
7:05
#7326
30K
18.64 mi12:36:512:10:507:0121:56
7:04
#6789
20M
20.00 mi12:46:192:20:187:019:28
6:58
#6477
21M
21.00 mi12:53:472:27:467:027:28
7:28
#6301
35K
21.75 mi12:58:582:32:577:025:11
6:56
#6225
23M
23.00 mi13:07:512:41:507:028:53
7:06
#6014
24M
24.00 mi13:14:522:48:517:027:01
7:01
#5920
40K
24.85 mi13:20:552:54:547:026:03
7:05
#5796
25.2M
25.20 mi13:23:422:57:417:032:47
8:04
#5766
Finish
26.22 mi13:30:513:04:507:037:09
7:01
#5711
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi9265774777477073(Top 25%)6301(Top 39%)6301(Top 316%)
10K6.21 mi3.10 mi8525+7407308+4397308+4397843(Top 28%)6865(Top 43%)6865(Top 344%)
15K9.32 mi3.11 mi7963+5626951+3576951+3577073(Top 25%)6301(Top 39%)6301(Top 316%)
20K12.43 mi3.11 mi7464+4996604+3476604+3476120(Top 22%)5522(Top 34%)5522(Top 277%)
Half13.11 mi0.68 mi7472-86609-56609-57760(Top 27%)6722(Top 42%)6722(Top 337%)
25K15.53 mi2.42 mi7326+1466487+1226487+1226831(Top 24%)5996(Top 37%)5996(Top 300%)
30K18.64 mi3.11 mi6789+5376046+4416046+4415065(Top 18%)4589(Top 28%)4589(Top 230%)
20M20.00 mi1.36 mi6477+3125794+2525794+2523897(Top 14%)3580(Top 22%)3580(Top 179%)
21M21.00 mi1.00 mi6301+1765644+1505644+1504438(Top 16%)3956(Top 25%)3956(Top 198%)
35K21.75 mi0.75 mi6225+765573+715573+714897(Top 17%)4309(Top 27%)4309(Top 216%)
23M23.00 mi1.25 mi6014+2115395+1785395+1784293(Top 15%)3805(Top 24%)3805(Top 191%)
24M24.00 mi1.00 mi5920+945300+955300+954706(Top 17%)4046(Top 25%)4046(Top 203%)
40K24.85 mi0.85 mi5796+1245191+1095191+1094321(Top 15%)3719(Top 23%)3719(Top 186%)
25.2M25.20 mi0.35 mi5766+305158+335158+336229(Top 22%)4862(Top 30%)4862(Top 244%)
Finish26.22 mi1.02 mi5711+555101+575101+575808(Top 20%)4605(Top 29%)4605(Top 231%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 25%
×21stories
+97ft-345ft

Overall

7073

Males

6301

M50-54

6301

5K→10K

3.1 - 6.2 mi

Top 28%
×5stories
+79ft-138ft

Overall

7843

Males

6865

M50-54

6865

10K→15K

6.2 - 9.3 mi

Top 25%
×3stories
+67ft-78ft

Overall

7073

Males

6301

M50-54

6301

15K→20K

9.3 - 12.4 mi

Top 22%
×5stories
+106ft-86ft

Overall

6120

Males

5522

M50-54

5522

20K→Half

12.4 - 13.1 mi

Top 27%
×2stories
+19ft-37ft

Overall

7760

Males

6722

M50-54

6722

Half→25K

13.1 - 15.5 mi

Top 24%
×4stories
+66ft-88ft

Overall

6831

Males

5996

M50-54

5996

25K→30K

15.5 - 18.6 mi

Top 18%
×9stories
+181ft-148ft

Overall

5065

Males

4589

M50-54

4589

30K→20M

18.6 - 20.0 mi

Top 14%
×5stories
+64ft-50ft

Overall

3897

Males

3580

M50-54

3580

20M→21M

20.0 - 21.0 mi

Top 16%
×8stories
+106ft-24ft

Overall

4438

Males

3956

M50-54

3956

21M→35K

21.0 - 21.8 mi

Top 17%
×7stories
+17ft-86ft

Overall

4897

Males

4309

M50-54

4309

35K→23M

21.8 - 23.0 mi

Top 15%
×5stories
+23ft-63ft

Overall

4293

Males

3805

M50-54

3805

23M→24M

23.0 - 24.0 mi

Top 17%
×6stories
+12ft-82ft

Overall

4706

Males

4046

M50-54

4046

24M→40K

24.0 - 24.9 mi

Top 15%
×1story
+6ft-20ft

Overall

4321

Males

3719

M50-54

3719

40K→25.2M

24.9 - 25.2 mi

Top 22%
×1story
+13ft-16ft

Overall

6229

Males

4862

M50-54

4862

25.2M→Finish

25.2 - 26.2 mi

Top 20%
×2stories
+22ft-21ft

Overall

5808

Males

4605

M50-54

4605

Passing Analysis

Category:
Athletes Passed
3747
Passed By
193
Net Change
+3554
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9265
5K → 10K76929+740#9265#8525
10K → 15K5708+562#8525#7963
15K → 20K5001+499#7963#7464
20K → Half2735-8#7464#7472
Half → 25K17933+146#7472#7326
25K → 30K5414+537#7326#6789
30K → 20M3131+312#6789#6477
20M → 21M1815+176#6477#6301
21M → 35K826+76#6301#6225
35K → 23M2121+211#6225#6014
23M → 24M11016+94#6014#5920
24M → 40K1317+124#5920#5796
40K → 25.2M4818+30#5796#5766
25.2M → Finish8429+55#5766#5711
TOTALS3747193+3554
📊

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