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BOSTON MARATHON 2025

Ki Yongeun

Bib: 6820•M

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 48%
Gender (Male)
#0 / 16105
Division (M18-39)
#0 / 5642
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:48
Rank: #5417
Start → 5K
20:48 | 6:42/mi
10K· 6.21 mi
41:42
Rank: #5482 (-65)
5K → 10K
20:54 | 6:44/mi
15K· 9.32 mi
1:02:32
Rank: #5340 (+142)
10K → 15K
20:50 | 6:42/mi
20K· 12.43 mi
1:24:18
Rank: #5806 (-466)
15K → 20K
21:46 | 7:00/mi
Half· 13.11 mi
1:28:54
Rank: #5787 (+19)
20K → Half
4:36 | 6:45/mi
25K· 15.53 mi
1:46:42
Rank: #6326 (-539)
Half → 25K
17:48 | 7:20/mi
30K· 18.64 mi
2:12:15
Rank: #7318 (-992)
25K → 30K
25:33 | 8:13/mi
20M
2:26:38
Rank: #8797 (-1479)
30K → 20M
14:23 | 10:35/mi
21M
2:36:50
Rank: #9541 (-744)
20M → 21M
10:12 | 10:12/mi
35K· 21.75 mi
2:43:44
Rank: #9988 (-447)
21M → 35K
6:54 | 9:13/mi
23M
2:56:08
Rank: #10800 (-812)
35K → 23M
12:24 | 9:54/mi
24M
3:06:10
Rank: #11463 (-663)
23M → 24M
10:02 | 10:02/mi
40K· 24.85 mi
3:15:43
Rank: #12293 (-830)
24M → 40K
9:33 | 11:10/mi
25.2M
3:19:50
Rank: #12596 (-303)
40K → 25.2M
4:07 | 11:56/mi
Finish· 26.22 mi
3:31:17
Rank: #13554 (-958)
25.2M → Finish
11:27 | 11:14/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:28:54
Pace6:47 /mi
2nd Half
Distance13.11 mi
Time2:02:23
Pace9:20 /mi
📊Positive Split: 37.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:46:3420:486:4220:48
6:42
-
10K
6.21 mi11:07:2841:426:4320:54
6:44
+0:02
15K
9.32 mi11:28:181:02:326:4320:50
6:42
-0:02
20K
12.43 mi11:50:041:24:186:4721:46
7:00
+0:18
Half
13.11 mi11:54:401:28:546:474:36
6:45
-0:15
25K
15.53 mi12:12:281:46:426:5217:48
7:20
+0:35
30K
18.64 mi12:38:012:12:157:0625:33
8:13
+0:53
20M
20.00 mi12:52:242:26:387:2014:23
10:35
+2:22
21M
21.00 mi13:02:362:36:507:2810:12
10:12
-0:23
35K
21.75 mi13:09:302:43:447:326:54
9:13
-0:59
23M
23.00 mi13:21:542:56:087:3912:24
9:54
+0:41
24M
24.00 mi13:31:563:06:107:4510:02
10:02
+0:08
40K
24.85 mi13:41:293:15:437:529:33
11:10
+1:08
25.2M
25.20 mi13:45:363:19:507:564:07
11:56
+0:46
Finish
26.22 mi13:57:033:31:178:0411:27
11:14
-0:42

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

6:42 /mi

Average Pace

8:04 /mi

Slowest Pace

11:56 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:12:15

63% of race

Time at Steady Pace

29:20

14% of race

Time at Slower Pace

49:42

24% of race

Average Pace: 8:03 /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 mi10:46:3420:486:4220:48
6:42
#5417
10K
6.21 mi11:07:2841:426:4320:54
6:44
#5482
15K
9.32 mi11:28:181:02:326:4320:50
6:42
#5340
20K
12.43 mi11:50:041:24:186:4721:46
7:00
#5806
Half
13.11 mi11:54:401:28:546:474:36
6:45
#5787
25K
15.53 mi12:12:281:46:426:5217:48
7:20
#6326
30K
18.64 mi12:38:012:12:157:0625:33
8:13
#7318
20M
20.00 mi12:52:242:26:387:2014:23
10:35
#8797
21M
21.00 mi13:02:362:36:507:2810:12
10:12
#9541
35K
21.75 mi13:09:302:43:447:326:54
9:13
#9988
23M
23.00 mi13:21:542:56:087:3912:24
9:54
#10800
24M
24.00 mi13:31:563:06:107:4510:02
10:02
#11463
40K
24.85 mi13:41:293:15:437:529:33
11:10
#12293
25.2M
25.20 mi13:45:363:19:507:564:07
11:56
#12596
Finish
26.22 mi13:57:033:31:178:0411:27
11:14
#13554
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi5417503450345140(Top 18%)4765(Top 30%)4765(Top 84%)
10K6.21 mi3.10 mi5482-655069-355069-355613(Top 20%)5162(Top 32%)5162(Top 91%)
15K9.32 mi3.11 mi5340+1424955+1144955+1145140(Top 18%)4765(Top 30%)4765(Top 84%)
20K12.43 mi3.11 mi5806-4665327-3725327-3726906(Top 24%)6139(Top 38%)6139(Top 109%)
Half13.11 mi0.68 mi5787+195307+205307+205699(Top 20%)5219(Top 32%)5219(Top 93%)
25K15.53 mi2.42 mi6326-5395724-4175724-4178683(Top 31%)7169(Top 45%)7169(Top 127%)
30K18.64 mi3.11 mi7318-9926437-7136437-71312988(Top 46%)9137(Top 57%)9137(Top 162%)
20M20.00 mi1.36 mi8797-14797315-8787315-87822639(Top 80%)13353(Top 83%)13353(Top 237%)
21M21.00 mi1.00 mi9541-7447699-3847699-38418997(Top 67%)11608(Top 72%)11608(Top 206%)
35K21.75 mi0.75 mi9988-4477900-2017900-20119223(Top 68%)11599(Top 72%)11599(Top 206%)
23M23.00 mi1.25 mi10800-8128266-3668266-36620144(Top 71%)11964(Top 74%)11964(Top 212%)
24M24.00 mi1.00 mi11463-6638539-2738539-27321443(Top 75%)12554(Top 78%)12554(Top 223%)
40K24.85 mi0.85 mi12293-8308910-3718910-37123482(Top 83%)13488(Top 84%)13488(Top 239%)
25.2M25.20 mi0.35 mi12596-3039046-1369046-13623057(Top 81%)13300(Top 83%)13300(Top 236%)
Finish26.22 mi1.02 mi13554-9589449-4039449-40325759(Top 91%)14663(Top 91%)14663(Top 260%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 18%
×21stories
+97ft-345ft

Overall

5140

Males

4765

M18-39

4765

5K→10K

3.1 - 6.2 mi

Top 20%
×5stories
+79ft-138ft

Overall

5613

Males

5162

M18-39

5162

10K→15K

6.2 - 9.3 mi

Top 18%
×3stories
+67ft-78ft

Overall

5140

Males

4765

M18-39

4765

15K→20K

9.3 - 12.4 mi

Top 24%
×5stories
+106ft-86ft

Overall

6906

Males

6139

M18-39

6139

20K→Half

12.4 - 13.1 mi

Top 20%
×2stories
+19ft-37ft

Overall

5699

Males

5219

M18-39

5219

Half→25K

13.1 - 15.5 mi

Top 31%
×4stories
+66ft-88ft

Overall

8683

Males

7169

M18-39

7169

25K→30K

15.5 - 18.6 mi

Top 46%
×9stories
+181ft-148ft

Overall

12988

Males

9137

M18-39

9137

30K→20M

18.6 - 20.0 mi

Top 80%
×5stories
+64ft-50ft

Overall

22639

Males

13353

M18-39

13353

20M→21M

20.0 - 21.0 mi

Top 67%
×8stories
+106ft-24ft

Overall

18997

Males

11608

M18-39

11608

21M→35K

21.0 - 21.8 mi

Top 68%
×7stories
+17ft-86ft

Overall

19223

Males

11599

M18-39

11599

35K→23M

21.8 - 23.0 mi

Top 71%
×5stories
+23ft-63ft

Overall

20144

Males

11964

M18-39

11964

23M→24M

23.0 - 24.0 mi

Top 75%
×6stories
+12ft-82ft

Overall

21443

Males

12554

M18-39

12554

24M→40K

24.0 - 24.9 mi

Top 83%
×1story
+6ft-20ft

Overall

23482

Males

13488

M18-39

13488

40K→25.2M

24.9 - 25.2 mi

Top 81%
×1story
+13ft-16ft

Overall

23057

Males

13300

M18-39

13300

25.2M→Finish

25.2 - 26.2 mi

Top 91%
×2stories
+22ft-21ft

Overall

25759

Males

14663

M18-39

14663

Passing Analysis

Category:
Athletes Passed
563
Passed By
8697
Net Change
-8137
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5417
5K → 10K158223-65#5417#5482
10K → 15K19957+142#5482#5340
15K → 20K38504-466#5340#5806
20K → Half3415+19#5806#5787
Half → 25K40579-539#5787#6326
25K → 30K281020-992#6326#7318
30K → 20M51484-1479#7318#8797
20M → 21M13757-744#8797#9541
21M → 35K10456-447#9541#9988
35K → 23M13823-812#9988#10800
23M → 24M12675-663#10800#11463
24M → 40K7837-830#11463#12293
40K → 25.2M4307-303#12293#12596
25.2M → Finish2960-958#12596#13554
TOTALS5638697-8137
📊

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