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BOSTON MARATHON 2025

Ki Hoon Kim

Bib: 7311•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 23%
Gender (Male)
#0 / 16105
Top 36%
Masters (Masters Men)
#0 / 10463
Top 22%
Division (M50-54)
#0 / 1996
Top 18%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:06
Rank: #3620
Start → 5K
20:06 | 6:28/mi
10K· 6.21 mi
40:26
Rank: #3837 (-217)
5K → 10K
20:20 | 6:33/mi
15K· 9.32 mi
1:01:01
Rank: #4012 (-175)
10K → 15K
20:35 | 6:38/mi
20K· 12.43 mi
1:22:07
Rank: #4236 (-224)
15K → 20K
21:06 | 6:47/mi
Half· 13.11 mi
1:26:45
Rank: #4315 (-79)
20K → Half
4:38 | 6:47/mi
25K· 15.53 mi
1:44:01
Rank: #4759 (-444)
Half → 25K
17:16 | 7:07/mi
30K· 18.64 mi
2:07:35
Rank: #5547 (-788)
25K → 30K
23:34 | 7:35/mi
20M
2:18:16
Rank: #5821 (-274)
30K → 20M
10:41 | 7:52/mi
21M
2:27:02
Rank: #6109 (-288)
20M → 21M
8:46 | 8:46/mi
35K· 21.75 mi
2:32:38
Rank: #6137 (-28)
21M → 35K
5:36 | 7:29/mi
23M
2:42:46
Rank: #6286 (-149)
35K → 23M
10:08 | 8:06/mi
24M
2:50:42
Rank: #6383 (-97)
23M → 24M
7:56 | 7:56/mi
40K· 24.85 mi
2:57:37
Rank: #6465 (-82)
24M → 40K
6:55 | 8:05/mi
25.2M
3:00:42
Rank: #6523 (-58)
40K → 25.2M
3:05 | 8:56/mi
Finish· 26.22 mi
3:08:36
Rank: #6655 (-132)
25.2M → Finish
7:54 | 7:45/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:26:45
Pace6:37 /mi
2nd Half
Distance13.11 mi
Time1:41:51
Pace7:46 /mi
📊Positive Split: 17.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:26:0920:066:2820:06
6:28
-
10K
6.21 mi10:46:2940:266:3020:20
6:33
+0:05
15K
9.32 mi11:07:041:01:016:3320:35
6:38
+0:05
20K
12.43 mi11:28:101:22:076:3621:06
6:47
+0:09
Half
13.11 mi11:32:481:26:456:374:38
6:47
0:00
25K
15.53 mi11:50:041:44:016:4217:16
7:07
+0:20
30K
18.64 mi12:13:382:07:356:5123:34
7:35
+0:28
20M
20.00 mi12:24:192:18:166:5510:41
7:52
+0:17
21M
21.00 mi12:33:052:27:027:008:46
8:46
+0:54
35K
21.75 mi12:38:412:32:387:015:36
7:29
-1:17
23M
23.00 mi12:48:492:42:467:0510:08
8:06
+0:37
24M
24.00 mi12:56:452:50:427:077:56
7:56
-0:10
40K
24.85 mi13:03:402:57:377:096:55
8:05
+0:09
25.2M
25.20 mi13:06:453:00:427:103:05
8:56
+0:51
Finish
26.22 mi13:14:393:08:367:127:54
7:45
-1:11

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

6:28 /mi

Average Pace

7:12 /mi

Slowest Pace

8:56 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:44:01

55% of race

Time at Steady Pace

55:41

30% of race

Time at Slower Pace

28:54

15% of race

Average Pace: 7:12 /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 mi10:26:0920:066:2820:06
6:28
#3620
10K
6.21 mi10:46:2940:266:3020:20
6:33
#3837
15K
9.32 mi11:07:041:01:016:3320:35
6:38
#4012
20K
12.43 mi11:28:101:22:076:3621:06
6:47
#4236
Half
13.11 mi11:32:481:26:456:374:38
6:47
#4315
25K
15.53 mi11:50:041:44:016:4217:16
7:07
#4759
30K
18.64 mi12:13:382:07:356:5123:34
7:35
#5547
20M
20.00 mi12:24:192:18:166:5510:41
7:52
#5821
21M
21.00 mi12:33:052:27:027:008:46
8:46
#6109
35K
21.75 mi12:38:412:32:387:015:36
7:29
#6137
23M
23.00 mi12:48:492:42:467:0510:08
8:06
#6286
24M
24.00 mi12:56:452:50:427:077:56
7:56
#6383
40K
24.85 mi13:03:402:57:377:096:55
8:05
#6465
25.2M
25.20 mi13:06:453:00:427:103:05
8:56
#6523
Finish
26.22 mi13:14:393:08:367:127:54
7:45
#6655
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi3620343534354465(Top 16%)4186(Top 26%)4186(Top 210%)
10K6.21 mi3.10 mi3837-2173629-1943629-1944051(Top 14%)3812(Top 24%)3812(Top 191%)
15K9.32 mi3.11 mi4012-1753783-1543783-1544465(Top 16%)4186(Top 26%)4186(Top 210%)
20K12.43 mi3.11 mi4236-2243984-2013984-2015225(Top 18%)4814(Top 30%)4814(Top 241%)
Half13.11 mi0.68 mi4315-794054-704054-706114(Top 22%)5535(Top 34%)5535(Top 277%)
25K15.53 mi2.42 mi4759-4444430-3764430-3767100(Top 25%)6190(Top 38%)6190(Top 310%)
30K18.64 mi3.11 mi5547-7885075-6455075-6458329(Top 29%)6781(Top 42%)6781(Top 340%)
20M20.00 mi1.36 mi5821-2745284-2095284-2099415(Top 33%)7206(Top 45%)7206(Top 361%)
21M21.00 mi1.00 mi6109-2885489-2055489-20512047(Top 42%)8383(Top 52%)8383(Top 420%)
35K21.75 mi0.75 mi6137-285508-195508-198469(Top 30%)6561(Top 41%)6561(Top 329%)
23M23.00 mi1.25 mi6286-1495596-885596-8810669(Top 38%)7564(Top 47%)7564(Top 379%)
24M24.00 mi1.00 mi6383-975648-525648-5210739(Top 38%)7543(Top 47%)7543(Top 378%)
40K24.85 mi0.85 mi6465-825679-315679-3110741(Top 38%)7419(Top 46%)7419(Top 372%)
25.2M25.20 mi0.35 mi6523-585704-255704-2511372(Top 40%)7632(Top 47%)7632(Top 382%)
Finish26.22 mi1.02 mi6655-1325763-595763-5911042(Top 39%)7519(Top 47%)7519(Top 377%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 16%
×21stories
+97ft-345ft

Overall

4465

Males

4186

M50-54

4186

5K→10K

3.1 - 6.2 mi

Top 14%
×5stories
+79ft-138ft

Overall

4051

Males

3812

M50-54

3812

10K→15K

6.2 - 9.3 mi

Top 16%
×3stories
+67ft-78ft

Overall

4465

Males

4186

M50-54

4186

15K→20K

9.3 - 12.4 mi

Top 18%
×5stories
+106ft-86ft

Overall

5225

Males

4814

M50-54

4814

20K→Half

12.4 - 13.1 mi

Top 22%
×2stories
+19ft-37ft

Overall

6114

Males

5535

M50-54

5535

Half→25K

13.1 - 15.5 mi

Top 25%
×4stories
+66ft-88ft

Overall

7100

Males

6190

M50-54

6190

25K→30K

15.5 - 18.6 mi

Top 29%
×9stories
+181ft-148ft

Overall

8329

Males

6781

M50-54

6781

30K→20M

18.6 - 20.0 mi

Top 33%
×5stories
+64ft-50ft

Overall

9415

Males

7206

M50-54

7206

20M→21M

20.0 - 21.0 mi

Top 42%
×8stories
+106ft-24ft

Overall

12047

Males

8383

M50-54

8383

21M→35K

21.0 - 21.8 mi

Top 30%
×7stories
+17ft-86ft

Overall

8469

Males

6561

M50-54

6561

35K→23M

21.8 - 23.0 mi

Top 38%
×5stories
+23ft-63ft

Overall

10669

Males

7564

M50-54

7564

23M→24M

23.0 - 24.0 mi

Top 38%
×6stories
+12ft-82ft

Overall

10739

Males

7543

M50-54

7543

24M→40K

24.0 - 24.9 mi

Top 38%
×1story
+6ft-20ft

Overall

10741

Males

7419

M50-54

7419

40K→25.2M

24.9 - 25.2 mi

Top 40%
×1story
+13ft-16ft

Overall

11372

Males

7632

M50-54

7632

25.2M→Finish

25.2 - 26.2 mi

Top 39%
×2stories
+22ft-21ft

Overall

11042

Males

7519

M50-54

7519

Passing Analysis

Category:
Athletes Passed
455
Passed By
3490
Net Change
-3035
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3620
5K → 10K55272-217#3620#3837
10K → 15K45220-175#3837#4012
15K → 20K43267-224#4012#4236
20K → Half887-79#4236#4315
Half → 25K34478-444#4315#4759
25K → 30K50838-788#4759#5547
30K → 20M14288-274#5547#5821
20M → 21M20308-288#5821#6109
21M → 35K2856-28#6109#6137
35K → 23M44193-149#6137#6286
23M → 24M37134-97#6286#6383
24M → 40K32114-82#6383#6465
40K → 25.2M1169-58#6465#6523
25.2M → Finish34166-132#6523#6655
TOTALS4553490-3035
📊

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