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BOSTON MARATHON 2025

Jeasung Kwon

Bib: 2875•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 17%
Gender (Male)
#0 / 16105
Top 27%
Masters (Masters Men)
#0 / 10463
Top 13%
Division (M45-49)
#0 / 2386
Top 17%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:26
Rank: #4386
Start → 5K
20:26 | 6:35/mi
10K· 6.21 mi
40:54
Rank: #4350 (+36)
5K → 10K
20:28 | 6:35/mi
15K· 9.32 mi
1:01:17
Rank: #4216 (+134)
10K → 15K
20:23 | 6:34/mi
20K· 12.43 mi
1:23:00
Rank: #4810 (-594)
15K → 20K
21:43 | 6:59/mi
Half· 13.11 mi
1:27:47
Rank: #4961 (-151)
20K → Half
4:47 | 7:01/mi
25K· 15.53 mi
1:44:21
Rank: #4948 (+13)
Half → 25K
16:34 | 6:50/mi
30K· 18.64 mi
2:06:41
Rank: #5114 (-166)
25K → 30K
22:20 | 7:11/mi
20M
2:16:30
Rank: #5137 (-23)
30K → 20M
9:49 | 7:13/mi
21M
2:24:27
Rank: #5256 (-119)
20M → 21M
7:57 | 7:57/mi
35K· 21.75 mi
2:29:33
Rank: #5196 (+60)
21M → 35K
5:06 | 6:49/mi
23M
2:38:07
Rank: #4997 (+199)
35K → 23M
8:34 | 6:51/mi
24M
2:44:50
Rank: #4867 (+130)
23M → 24M
6:43 | 6:43/mi
40K· 24.85 mi
2:50:43
Rank: #4770 (+97)
24M → 40K
5:53 | 6:53/mi
25.2M
2:53:24
Rank: #4766 (+4)
40K → 25.2M
2:41 | 7:47/mi
Finish· 26.22 mi
3:00:10
Rank: #4723 (+43)
25.2M → Finish
6:46 | 6:38/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:27:47
Pace6:42 /mi
2nd Half
Distance13.11 mi
Time1:32:23
Pace7:03 /mi
📊Positive Split: 5.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:0120:266:3520:26
6:35
-
10K
6.21 mi10:42:2940:546:3520:28
6:35
0:00
15K
9.32 mi11:02:521:01:176:3520:23
6:34
-0:01
20K
12.43 mi11:24:351:23:006:4121:43
6:59
+0:25
Half
13.11 mi11:29:221:27:476:424:47
7:01
+0:02
25K
15.53 mi11:45:561:44:216:4316:34
6:50
-0:11
30K
18.64 mi12:08:162:06:416:4822:20
7:11
+0:21
20M
20.00 mi12:18:052:16:306:499:49
7:13
+0:02
21M
21.00 mi12:26:022:24:276:537:57
7:57
+0:44
35K
21.75 mi12:31:082:29:336:535:06
6:49
-1:08
23M
23.00 mi12:39:422:38:076:528:34
6:51
+0:02
24M
24.00 mi12:46:252:44:506:526:43
6:43
-0:08
40K
24.85 mi12:52:182:50:436:525:53
6:53
+0:10
25.2M
25.20 mi12:54:592:53:246:532:41
7:47
+0:54
Finish
26.22 mi13:01:453:00:106:536:46
6:38
-1:09

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

6:34 /mi

Average Pace

6:53 /mi

Slowest Pace

7:57 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:08:03

38% of race

Time at Steady Pace

1:09:20

38% of race

Time at Slower Pace

42:47

24% 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 mi10:22:0120:266:3520:26
6:35
#4386
10K
6.21 mi10:42:2940:546:3520:28
6:35
#4350
15K
9.32 mi11:02:521:01:176:3520:23
6:34
#4216
20K
12.43 mi11:24:351:23:006:4121:43
6:59
#4810
Half
13.11 mi11:29:221:27:476:424:47
7:01
#4961
25K
15.53 mi11:45:561:44:216:4316:34
6:50
#4948
30K
18.64 mi12:08:162:06:416:4822:20
7:11
#5114
20M
20.00 mi12:18:052:16:306:499:49
7:13
#5137
21M
21.00 mi12:26:022:24:276:537:57
7:57
#5256
35K
21.75 mi12:31:082:29:336:535:06
6:49
#5196
23M
23.00 mi12:39:422:38:076:528:34
6:51
#4997
24M
24.00 mi12:46:252:44:506:526:43
6:43
#4867
40K
24.85 mi12:52:182:50:436:525:53
6:53
#4770
25.2M
25.20 mi12:54:592:53:246:532:41
7:47
#4766
Finish
26.22 mi13:01:453:00:106:536:46
6:38
#4723
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi4386412341233951(Top 14%)3723(Top 23%)3723(Top 156%)
10K6.21 mi3.10 mi4350+364090+334090+334361(Top 15%)4094(Top 25%)4094(Top 172%)
15K9.32 mi3.11 mi4216+1343967+1233967+1233951(Top 14%)3723(Top 23%)3723(Top 156%)
20K12.43 mi3.11 mi4810-5944485-5184485-5186801(Top 24%)6054(Top 38%)6054(Top 254%)
Half13.11 mi0.68 mi4961-1514617-1324617-1327591(Top 27%)6612(Top 41%)6612(Top 277%)
25K15.53 mi2.42 mi4948+134595+224595+225099(Top 18%)4674(Top 29%)4674(Top 196%)
30K18.64 mi3.11 mi5114-1664709-1144709-1145820(Top 20%)5178(Top 32%)5178(Top 217%)
20M20.00 mi1.36 mi5137-234721-124721-125302(Top 19%)4699(Top 29%)4699(Top 197%)
21M21.00 mi1.00 mi5256-1194813-924813-927036(Top 25%)5687(Top 35%)5687(Top 238%)
35K21.75 mi0.75 mi5196+604760+534760+534188(Top 15%)3741(Top 23%)3741(Top 157%)
23M23.00 mi1.25 mi4997+1994579+1814579+1812910(Top 10%)2665(Top 17%)2665(Top 112%)
24M24.00 mi1.00 mi4867+1304458+1214458+1213062(Top 11%)2775(Top 17%)2775(Top 116%)
40K24.85 mi0.85 mi4770+974373+854373+853251(Top 11%)2903(Top 18%)2903(Top 122%)
25.2M25.20 mi0.35 mi4766+44364+94364+94703(Top 17%)3901(Top 24%)3901(Top 163%)
Finish26.22 mi1.02 mi4723+434322+424322+423548(Top 12%)3095(Top 19%)3095(Top 130%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 14%
×21stories
+97ft-345ft

Overall

3951

Males

3723

M45-49

3723

5K→10K

3.1 - 6.2 mi

Top 15%
×5stories
+79ft-138ft

Overall

4361

Males

4094

M45-49

4094

10K→15K

6.2 - 9.3 mi

Top 14%
×3stories
+67ft-78ft

Overall

3951

Males

3723

M45-49

3723

15K→20K

9.3 - 12.4 mi

Top 24%
×5stories
+106ft-86ft

Overall

6801

Males

6054

M45-49

6054

20K→Half

12.4 - 13.1 mi

Top 27%
×2stories
+19ft-37ft

Overall

7591

Males

6612

M45-49

6612

Half→25K

13.1 - 15.5 mi

Top 18%
×4stories
+66ft-88ft

Overall

5099

Males

4674

M45-49

4674

25K→30K

15.5 - 18.6 mi

Top 20%
×9stories
+181ft-148ft

Overall

5820

Males

5178

M45-49

5178

30K→20M

18.6 - 20.0 mi

Top 19%
×5stories
+64ft-50ft

Overall

5302

Males

4699

M45-49

4699

20M→21M

20.0 - 21.0 mi

Top 25%
×8stories
+106ft-24ft

Overall

7036

Males

5687

M45-49

5687

21M→35K

21.0 - 21.8 mi

Top 15%
×7stories
+17ft-86ft

Overall

4188

Males

3741

M45-49

3741

35K→23M

21.8 - 23.0 mi

Top 10%
×5stories
+23ft-63ft

Overall

2910

Males

2665

M45-49

2665

23M→24M

23.0 - 24.0 mi

Top 11%
×6stories
+12ft-82ft

Overall

3062

Males

2775

M45-49

2775

24M→40K

24.0 - 24.9 mi

Top 11%
×1story
+6ft-20ft

Overall

3251

Males

2903

M45-49

2903

40K→25.2M

24.9 - 25.2 mi

Top 17%
×1story
+13ft-16ft

Overall

4703

Males

3901

M45-49

3901

25.2M→Finish

25.2 - 26.2 mi

Top 12%
×2stories
+22ft-21ft

Overall

3548

Males

3095

M45-49

3095

Passing Analysis

Category:
Athletes Passed
1316
Passed By
1653
Net Change
-337
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4386
5K → 10K149113+36#4386#4350
10K → 15K17844+134#4350#4216
15K → 20K29623-594#4216#4810
20K → Half3154-151#4810#4961
Half → 25K11299+13#4961#4948
25K → 30K122288-166#4948#5114
30K → 20M6184-23#5114#5137
20M → 21M51170-119#5137#5256
21M → 35K7414+60#5256#5196
35K → 23M2056+199#5196#4997
23M → 24M1388+130#4997#4867
24M → 40K10811+97#4867#4770
40K → 25.2M2723+4#4770#4766
25.2M → Finish5916+43#4766#4723
TOTALS13161653-337
📊

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