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BOSTON MARATHON 2025

Jung Kim

Bib: 10626•M

MD

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 37%
Gender (Male)
#0 / 16105
Top 49%
Masters (Masters Men)
#0 / 10463
Top 39%
Division (M50-54)
#0 / 1996
Top 40%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
7:07/mi
22:07
↑ 97↓ 3451.5%
10K· 6.21 mi
7:00/mi
43:52
↑ 79↓ 1380.4%
15K· 9.32 mi
7:00/mi
1:05:36
↑ 67↓ 78
20K· 12.43 mi
7:05/mi
1:27:36
↑ 106↓ 860.1%
Half· 13.11 mi
7:01/mi
1:32:23
↑ 19↓ 370.5%
25K· 15.53 mi
7:20/mi
1:50:10
↑ 66↓ 880.2%
30K· 18.64 mi
7:56/mi
2:14:49
↑ 181↓ 1480.2%
20M
8:25/mi
2:26:15
↑ 64↓ 500.2%
21M
8:55/mi
2:35:10
↑ 106↓ 241.6%
35K· 21.75 mi
8:37/mi
2:41:37
↑ 17↓ 861.7%
23M
9:06/mi
2:53:01
↑ 23↓ 630.6%
24M
9:02/mi
3:02:03
↓ 821.3%
40K· 24.85 mi
8:57/mi
3:09:42
↓ 200.3%
25.2M
9:20/mi
3:12:55
↑ 13↓ 160.2%
Finish· 26.22 mi
7:49/mi
3:20:53
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:32:23
Pace7:03 /mi
2nd Half
Distance13.11 mi
Time1:48:30
Pace8:17 /mi
📊Positive Split: 17.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:48:1422:077:0722:07
7:07
-
10K
6.21 mi11:09:5943:527:0421:45
7:00
-0:07
15K
9.32 mi11:31:431:05:367:0221:44
7:00
0:00
20K
12.43 mi11:53:431:27:367:0322:00
7:05
+0:05
Half
13.11 mi11:58:301:32:237:034:47
7:01
-0:04
25K
15.53 mi12:16:171:50:107:0617:47
7:20
+0:19
30K
18.64 mi12:40:562:14:497:1424:39
7:56
+0:36
20M
20.00 mi12:52:222:26:157:1911:26
8:25
+0:29
21M
21.00 mi13:01:172:35:107:238:55
8:55
+0:30
35K
21.75 mi13:07:442:41:377:266:27
8:37
-0:18
23M
23.00 mi13:19:082:53:017:3111:24
9:06
+0:29
24M
24.00 mi13:28:103:02:037:359:02
9:02
-0:04
40K
24.85 mi13:35:493:09:427:387:39
8:57
-0:05
25.2M
25.20 mi13:39:023:12:557:393:13
9:20
+0:23
Finish
26.22 mi13:47:003:20:537:407:58
7:49
-1:31

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

7:00 /mi

Average Pace

7:40 /mi

Slowest Pace

9:20 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:50:10

55% of race

Time at Steady Pace

32:37

16% of race

Time at Slower Pace

58:06

29% of race

Average Pace: 7:40 /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 mi10:48:1422:077:0722:07
7:07
#8806
10K
6.21 mi11:09:5943:527:0421:45
7:00
#8340
15K
9.32 mi11:31:431:05:367:0221:44
7:00
#8028
20K
12.43 mi11:53:431:27:367:0322:00
7:05
#7818
Half
13.11 mi11:58:301:32:237:034:47
7:01
#7806
25K
15.53 mi12:16:171:50:107:0617:47
7:20
#7876
30K
18.64 mi12:40:562:14:497:1424:39
7:56
#8278
20M
20.00 mi12:52:222:26:157:1911:26
8:25
#8631
21M
21.00 mi13:01:172:35:107:238:55
8:55
#8887
35K
21.75 mi13:07:442:41:377:266:27
8:37
#9165
23M
23.00 mi13:19:082:53:017:3111:24
9:06
#9699
24M
24.00 mi13:28:103:02:037:359:02
9:02
#10105
40K
24.85 mi13:35:493:09:427:387:39
8:57
#10336
25.2M
25.20 mi13:39:023:12:557:393:13
9:20
#10383
Finish
26.22 mi13:47:003:20:537:407:58
7:49
#10401
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi8806749574957609(Top 27%)6691(Top 42%)6691(Top 335%)
10K6.21 mi3.10 mi8340+4667199+2967199+2967924(Top 28%)6931(Top 43%)6931(Top 347%)
15K9.32 mi3.11 mi8028+3126994+2056994+2057609(Top 27%)6691(Top 42%)6691(Top 335%)
20K12.43 mi3.11 mi7818+2106837+1576837+1577411(Top 26%)6498(Top 40%)6498(Top 326%)
Half13.11 mi0.68 mi7806+126832+56832+57687(Top 27%)6708(Top 42%)6708(Top 336%)
25K15.53 mi2.42 mi7876-706857-256857-258634(Top 30%)7134(Top 44%)7134(Top 357%)
30K18.64 mi3.11 mi8278-4027046-1897046-18910888(Top 38%)8134(Top 51%)8134(Top 408%)
20M20.00 mi1.36 mi8631-3537219-1737219-17313211(Top 47%)9077(Top 56%)9077(Top 455%)
21M21.00 mi1.00 mi8887-2567339-1207339-12012997(Top 46%)8835(Top 55%)8835(Top 443%)
35K21.75 mi0.75 mi9165-2787474-1357474-13516143(Top 57%)10226(Top 63%)10226(Top 512%)
23M23.00 mi1.25 mi9699-5347723-2497723-24916814(Top 59%)10426(Top 65%)10426(Top 522%)
24M24.00 mi1.00 mi10105-4067886-1637886-16317502(Top 62%)10684(Top 66%)10684(Top 535%)
40K24.85 mi0.85 mi10336-2317967-817967-8115964(Top 56%)9890(Top 61%)9890(Top 495%)
25.2M25.20 mi0.35 mi10383-477974-77974-713521(Top 48%)8691(Top 54%)8691(Top 435%)
Finish26.22 mi1.02 mi10401-187957+177957+1711540(Top 41%)7785(Top 48%)7785(Top 390%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 27%
×21story building
+97ft-345ft

Overall

7609

Males

6691

M50-54

6691

5K→10K

3.1 - 6.2 mi

Top 28%
×5story building
+79ft-138ft

Overall

7924

Males

6931

M50-54

6931

10K→15K

6.2 - 9.3 mi

Top 27%
×3story building
+67ft-78ft

Overall

7609

Males

6691

M50-54

6691

15K→20K

9.3 - 12.4 mi

Top 26%
×5story building
+106ft-86ft

Overall

7411

Males

6498

M50-54

6498

20K→Half

12.4 - 13.1 mi

Top 27%
×2story building
+19ft-37ft

Overall

7687

Males

6708

M50-54

6708

Half→25K

13.1 - 15.5 mi

Top 30%
×4story building
+66ft-88ft

Overall

8634

Males

7134

M50-54

7134

25K→30K

15.5 - 18.6 mi

Top 38%
×9story building
+181ft-148ft

Overall

10888

Males

8134

M50-54

8134

30K→20M

18.6 - 20.0 mi

Top 47%
×5story building
+64ft-50ft

Overall

13211

Males

9077

M50-54

9077

20M→21M

20.0 - 21.0 mi

Top 46%
×8story building
+106ft-24ft

Overall

12997

Males

8835

M50-54

8835

21M→35K

21.0 - 21.8 mi

Top 57%
×7story building
+17ft-86ft

Overall

16143

Males

10226

M50-54

10226

35K→23M

21.8 - 23.0 mi

Top 59%
×5story building
+23ft-63ft

Overall

16814

Males

10426

M50-54

10426

23M→24M

23.0 - 24.0 mi

Top 62%
×6story building
+12ft-82ft

Overall

17502

Males

10684

M50-54

10684

24M→40K

24.0 - 24.9 mi

Top 56%
×1story
+6ft-20ft

Overall

15964

Males

9890

M50-54

9890

40K→25.2M

24.9 - 25.2 mi

Top 48%
×1story
+13ft-16ft

Overall

13521

Males

8691

M50-54

8691

25.2M→Finish

25.2 - 26.2 mi

Top 41%
×2story building
+22ft-21ft

Overall

11540

Males

7785

M50-54

7785

Passing Analysis

Category:
Athletes Passed
1598
Passed By
3191
Net Change
-1595
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8806
5K → 10K52862+466#8806#8340
10K → 15K33523+312#8340#8028
15K → 20K24939+210#8028#7818
20K → Half3826+12#7818#7806
Half → 25K89159-70#7806#7876
25K → 30K94496-402#7876#8278
30K → 20M35388-353#8278#8631
20M → 21M38294-256#8631#8887
21M → 35K19297-278#8887#9165
35K → 23M26560-534#9165#9699
23M → 24M22426-406#9699#10105
24M → 40K37268-231#10105#10336
40K → 25.2M2067-47#10336#10383
25.2M → Finish6886-18#10383#10401
TOTALS15983191-1595
📊

Passing Visuals

Category:
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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