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BOSTON MARATHON 2025

Jung Min Lee

Bib: 13602•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 41%
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Top 43%
Division (M50-54)
#0 / 1996
Top 46%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:33
Rank: #9956
Start → 5K
22:33 | 7:15/mi
10K· 6.21 mi
44:27
Rank: #9065 (+891)
5K → 10K
21:54 | 7:03/mi
15K· 9.32 mi
1:06:25
Rank: #8709 (+356)
10K → 15K
21:58 | 7:04/mi
20K· 12.43 mi
1:29:19
Rank: #8868 (-159)
15K → 20K
22:54 | 7:22/mi
Half· 13.11 mi
1:34:16
Rank: #8893 (-25)
20K → Half
4:57 | 7:15/mi
25K· 15.53 mi
1:53:38
Rank: #9698 (-805)
Half → 25K
19:22 | 7:59/mi
30K· 18.64 mi
2:19:27
Rank: #10409 (-711)
25K → 30K
25:49 | 8:19/mi
20M
2:30:50
Rank: #10615 (-206)
30K → 20M
11:23 | 8:23/mi
21M
2:39:43
Rank: #10715 (-100)
20M → 21M
8:53 | 8:53/mi
35K· 21.75 mi
2:46:01
Rank: #10863 (-148)
21M → 35K
6:18 | 8:25/mi
23M
2:56:52
Rank: #11053 (-190)
35K → 23M
10:51 | 8:40/mi
24M
3:05:27
Rank: #11218 (-165)
23M → 24M
8:35 | 8:35/mi
40K· 24.85 mi
3:12:57
Rank: #11379 (-161)
24M → 40K
7:30 | 8:46/mi
25.2M
3:16:12
Rank: #11413 (-34)
40K → 25.2M
3:15 | 9:25/mi
Finish· 26.22 mi
3:24:39
Rank: #11564 (-151)
25.2M → Finish
8:27 | 8:18/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:34:16
Pace7:11 /mi
2nd Half
Distance13.11 mi
Time1:50:23
Pace8:25 /mi
📊Positive Split: 17.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:13:1222:337:1522:33
7:15
-
10K
6.21 mi11:35:0644:277:0921:54
7:03
-0:12
15K
9.32 mi11:57:041:06:257:0821:58
7:04
+0:01
20K
12.43 mi12:19:581:29:197:1122:54
7:22
+0:18
Half
13.11 mi12:24:551:34:167:114:57
7:15
-0:07
25K
15.53 mi12:44:171:53:387:1919:22
7:59
+0:44
30K
18.64 mi13:10:062:19:277:2925:49
8:19
+0:20
20M
20.00 mi13:21:292:30:507:3211:23
8:23
+0:04
21M
21.00 mi13:30:222:39:437:368:53
8:53
+0:30
35K
21.75 mi13:36:402:46:017:386:18
8:25
-0:28
23M
23.00 mi13:47:312:56:527:4110:51
8:40
+0:15
24M
24.00 mi13:56:063:05:277:448:35
8:35
-0:05
40K
24.85 mi14:03:363:12:577:467:30
8:46
+0:11
25.2M
25.20 mi14:06:513:16:127:473:15
9:25
+0:39
Finish
26.22 mi14:15:183:24:397:498:27
8:18
-1:07

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

7:03 /mi

Average Pace

7:49 /mi

Slowest Pace

9:25 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:34:16

46% of race

Time at Steady Pace

1:30:45

44% of race

Time at Slower Pace

19:38

10% of race

Average Pace: 7:48 /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 mi11:13:1222:337:1522:33
7:15
#9956
10K
6.21 mi11:35:0644:277:0921:54
7:03
#9065
15K
9.32 mi11:57:041:06:257:0821:58
7:04
#8709
20K
12.43 mi12:19:581:29:197:1122:54
7:22
#8868
Half
13.11 mi12:24:551:34:167:114:57
7:15
#8893
25K
15.53 mi12:44:171:53:387:1919:22
7:59
#9698
30K
18.64 mi13:10:062:19:277:2925:49
8:19
#10409
20M
20.00 mi13:21:292:30:507:3211:23
8:23
#10615
21M
21.00 mi13:30:222:39:437:368:53
8:53
#10715
35K
21.75 mi13:36:402:46:017:386:18
8:25
#10863
23M
23.00 mi13:47:312:56:527:4110:51
8:40
#11053
24M
24.00 mi13:56:063:05:277:448:35
8:35
#11218
40K
24.85 mi14:03:363:12:577:467:30
8:46
#11379
25.2M
25.20 mi14:06:513:16:127:473:15
9:25
#11413
Finish
26.22 mi14:15:183:24:397:498:27
8:18
#11564
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi9956814681468127(Top 29%)7025(Top 44%)7025(Top 352%)
10K6.21 mi3.10 mi9065+8917642+5047642+5048289(Top 29%)7162(Top 44%)7162(Top 359%)
15K9.32 mi3.11 mi8709+3567415+2277415+2278127(Top 29%)7025(Top 44%)7025(Top 352%)
20K12.43 mi3.11 mi8868-1597488-737488-739645(Top 34%)7817(Top 49%)7817(Top 392%)
Half13.11 mi0.68 mi8893-257495-77495-79588(Top 34%)7823(Top 49%)7823(Top 392%)
25K15.53 mi2.42 mi9698-8057908-4137908-41313770(Top 48%)9637(Top 60%)9637(Top 483%)
30K18.64 mi3.11 mi10409-7118225-3178225-31713555(Top 48%)9393(Top 58%)9393(Top 471%)
20M20.00 mi1.36 mi10615-2068276-518276-5112972(Top 46%)8974(Top 56%)8974(Top 450%)
21M21.00 mi1.00 mi10715-1008287-118287-1112794(Top 45%)8735(Top 54%)8735(Top 438%)
35K21.75 mi0.75 mi10863-1488332-458332-4514936(Top 53%)9685(Top 60%)9685(Top 485%)
23M23.00 mi1.25 mi11053-1908384-528384-5214317(Top 50%)9304(Top 58%)9304(Top 466%)
24M24.00 mi1.00 mi11218-1658420-368420-3615015(Top 53%)9584(Top 60%)9584(Top 480%)
40K24.85 mi0.85 mi11379-1618459-398459-3914993(Top 53%)9436(Top 59%)9436(Top 473%)
25.2M25.20 mi0.35 mi11413-348456+38456+314067(Top 50%)8952(Top 56%)8952(Top 448%)
Finish26.22 mi1.02 mi11564-1518498-428498-4214834(Top 52%)9404(Top 58%)9404(Top 471%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 29%
×21stories
+97ft-345ft

Overall

8127

Males

7025

M50-54

7025

5K→10K

3.1 - 6.2 mi

Top 29%
×5stories
+79ft-138ft

Overall

8289

Males

7162

M50-54

7162

10K→15K

6.2 - 9.3 mi

Top 29%
×3stories
+67ft-78ft

Overall

8127

Males

7025

M50-54

7025

15K→20K

9.3 - 12.4 mi

Top 34%
×5stories
+106ft-86ft

Overall

9645

Males

7817

M50-54

7817

20K→Half

12.4 - 13.1 mi

Top 34%
×2stories
+19ft-37ft

Overall

9588

Males

7823

M50-54

7823

Half→25K

13.1 - 15.5 mi

Top 48%
×4stories
+66ft-88ft

Overall

13770

Males

9637

M50-54

9637

25K→30K

15.5 - 18.6 mi

Top 48%
×9stories
+181ft-148ft

Overall

13555

Males

9393

M50-54

9393

30K→20M

18.6 - 20.0 mi

Top 46%
×5stories
+64ft-50ft

Overall

12972

Males

8974

M50-54

8974

20M→21M

20.0 - 21.0 mi

Top 45%
×8stories
+106ft-24ft

Overall

12794

Males

8735

M50-54

8735

21M→35K

21.0 - 21.8 mi

Top 53%
×7stories
+17ft-86ft

Overall

14936

Males

9685

M50-54

9685

35K→23M

21.8 - 23.0 mi

Top 50%
×5stories
+23ft-63ft

Overall

14317

Males

9304

M50-54

9304

23M→24M

23.0 - 24.0 mi

Top 53%
×6stories
+12ft-82ft

Overall

15015

Males

9584

M50-54

9584

24M→40K

24.0 - 24.9 mi

Top 53%
×1story
+6ft-20ft

Overall

14993

Males

9436

M50-54

9436

40K→25.2M

24.9 - 25.2 mi

Top 50%
×1story
+13ft-16ft

Overall

14067

Males

8952

M50-54

8952

25.2M→Finish

25.2 - 26.2 mi

Top 52%
×2stories
+22ft-21ft

Overall

14834

Males

9404

M50-54

9404

Passing Analysis

Category:
Athletes Passed
1943
Passed By
3549
Net Change
-1608
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9956
5K → 10K91019+891#9956#9065
10K → 15K39135+356#9065#8709
15K → 20K134293-159#8709#8868
20K → Half2247-25#8868#8893
Half → 25K35840-805#8893#9698
25K → 30K79788-711#9698#10409
30K → 20M73279-206#10409#10615
20M → 21M72172-100#10615#10715
21M → 35K26174-148#10715#10863
35K → 23M56246-190#10863#11053
23M → 24M46211-165#11053#11218
24M → 40K32193-161#11218#11379
40K → 25.2M3367-34#11379#11413
25.2M → Finish34185-151#11413#11564
TOTALS19433549-1608
📊

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