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BOSTON MARATHON 2025

Jungwook Kim

Bib: 7992•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 35%
Gender (Male)
#0 / 16105
Top 48%
Masters (Masters Men)
#0 / 10463
Top 36%
Division (M40-44)
#0 / 2247
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K· 3.11 mi
21:35
Rank: #7413
Start → 5K
21:35 | 6:57/mi
10K· 6.21 mi
42:57
Rank: #7249 (+164)
5K → 10K
21:22 | 6:53/mi
15K· 9.32 mi
1:04:13
Rank: #7001 (+248)
10K → 15K
21:16 | 6:51/mi
20K· 12.43 mi
1:26:17
Rank: #7139 (-138)
15K → 20K
22:04 | 7:06/mi
Half· 13.11 mi
1:31:04
Rank: #7161 (-22)
20K → Half
4:47 | 7:01/mi
25K· 15.53 mi
1:48:52
Rank: #7317 (-156)
Half → 25K
17:48 | 7:20/mi
30K· 18.64 mi
2:14:12
Rank: #8012 (-695)
25K → 30K
25:20 | 8:09/mi
20M
2:26:39
Rank: #8805 (-793)
30K → 20M
12:27 | 9:10/mi
21M
2:36:08
Rank: #9263 (-458)
20M → 21M
9:29 | 9:29/mi
35K· 21.75 mi
2:42:25
Rank: #9475 (-212)
21M → 35K
6:17 | 8:24/mi
23M
2:53:36
Rank: #9925 (-450)
35K → 23M
11:11 | 8:56/mi
24M
3:01:35
Rank: #9933 (-8)
23M → 24M
7:59 | 7:59/mi
40K· 24.85 mi
3:08:49
Rank: #10040 (-107)
24M → 40K
7:14 | 8:28/mi
25.2M
3:11:41
Rank: #9977 (+63)
40K → 25.2M
2:52 | 8:19/mi
Finish· 26.22 mi
3:19:01
Rank: #9832 (+145)
25.2M → Finish
7:20 | 7:12/mi

Course Map & Elevation

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:31:04
Pace6:57 /mi
2nd Half
Distance13.11 mi
Time1:47:57
Pace8:14 /mi
📊Positive Split: 18.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:29:1821:356:5721:35
6:57
-
10K
6.21 mi10:50:4042:576:5521:22
6:53
-0:04
15K
9.32 mi11:11:561:04:136:5321:16
6:51
-0:02
20K
12.43 mi11:34:001:26:176:5722:04
7:06
+0:15
Half
13.11 mi11:38:471:31:046:574:47
7:01
-0:05
25K
15.53 mi11:56:351:48:527:0017:48
7:20
+0:19
30K
18.64 mi12:21:552:14:127:1225:20
8:09
+0:49
20M
20.00 mi12:34:222:26:397:2012:27
9:10
+1:01
21M
21.00 mi12:43:512:36:087:269:29
9:29
+0:19
35K
21.75 mi12:50:082:42:257:286:17
8:24
-1:05
23M
23.00 mi13:01:192:53:367:3311:11
8:56
+0:32
24M
24.00 mi13:09:183:01:357:347:59
7:59
-0:57
40K
24.85 mi13:16:323:08:497:367:14
8:28
+0:29
25.2M
25.20 mi13:19:243:11:417:362:52
8:19
-0:09
Finish
26.22 mi13:26:443:19:017:367:20
7:12
-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

6:51 /mi

Average Pace

7:36 /mi

Slowest Pace

9:29 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

1:56:12

58% of race

Time at Steady Pace

42:28

21% of race

Time at Slower Pace

40:21

20% of race

Average Pace: 7:35 /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

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:29:1821:356:5721:35
6:57
#7413
10K
6.21 mi10:50:4042:576:5521:22
6:53
#7249
15K
9.32 mi11:11:561:04:136:5321:16
6:51
#7001
20K
12.43 mi11:34:001:26:176:5722:04
7:06
#7139
Half
13.11 mi11:38:471:31:046:574:47
7:01
#7161
25K
15.53 mi11:56:351:48:527:0017:48
7:20
#7317
30K
18.64 mi12:21:552:14:127:1225:20
8:09
#8012
20M
20.00 mi12:34:222:26:397:2012:27
9:10
#8805
21M
21.00 mi12:43:512:36:087:269:29
9:29
#9263
35K
21.75 mi12:50:082:42:257:286:17
8:24
#9475
23M
23.00 mi13:01:192:53:367:3311:11
8:56
#9925
24M
24.00 mi13:09:183:01:357:347:59
7:59
#9933
40K
24.85 mi13:16:323:08:497:367:14
8:28
#10040
25.2M
25.20 mi13:19:243:11:417:362:52
8:19
#9977
Finish
26.22 mi13:26:443:19:017:367:20
7:12
#9832
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi7413660766076534(Top 23%)5896(Top 37%)5896(Top 262%)
10K6.21 mi3.10 mi7249+1646478+1296478+1297080(Top 25%)6338(Top 39%)6338(Top 282%)
15K9.32 mi3.11 mi7001+2486285+1936285+1936534(Top 23%)5896(Top 37%)5896(Top 262%)
20K12.43 mi3.11 mi7139-1386376-916376-917528(Top 27%)6572(Top 41%)6572(Top 292%)
Half13.11 mi0.68 mi7161-226389-136389-137683(Top 27%)6704(Top 42%)6704(Top 298%)
25K15.53 mi2.42 mi7317-1566480-916480-918675(Top 31%)7161(Top 44%)7161(Top 319%)
30K18.64 mi3.11 mi8012-6956875-3956875-39512463(Top 44%)8885(Top 55%)8885(Top 395%)
20M20.00 mi1.36 mi8805-7937320-4457320-44517571(Top 62%)11058(Top 69%)11058(Top 492%)
21M21.00 mi1.00 mi9263-4587544-2247544-22415971(Top 56%)10231(Top 64%)10231(Top 455%)
35K21.75 mi0.75 mi9475-2127648-1047648-10414802(Top 52%)9619(Top 60%)9619(Top 428%)
23M23.00 mi1.25 mi9925-4507826-1787826-17815843(Top 56%)9991(Top 62%)9991(Top 445%)
24M24.00 mi1.00 mi9933-87799+277799+2711089(Top 39%)7713(Top 48%)7713(Top 343%)
40K24.85 mi0.85 mi10040-1077823-247823-2413148(Top 46%)8587(Top 53%)8587(Top 382%)
25.2M25.20 mi0.35 mi9977+637774+497774+497704(Top 27%)5763(Top 36%)5763(Top 256%)
Finish26.22 mi1.02 mi9832+1457662+1127662+1127019(Top 25%)5349(Top 33%)5349(Top 238%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 23%
×21stories
+97ft-345ft

Overall

6534

Males

5896

M40-44

5896

5K→10K

3.1 - 6.2 mi

Top 25%
×5stories
+79ft-138ft

Overall

7080

Males

6338

M40-44

6338

10K→15K

6.2 - 9.3 mi

Top 23%
×3stories
+67ft-78ft

Overall

6534

Males

5896

M40-44

5896

15K→20K

9.3 - 12.4 mi

Top 27%
×5stories
+106ft-86ft

Overall

7528

Males

6572

M40-44

6572

20K→Half

12.4 - 13.1 mi

Top 27%
×2stories
+19ft-37ft

Overall

7683

Males

6704

M40-44

6704

Half→25K

13.1 - 15.5 mi

Top 31%
×4stories
+66ft-88ft

Overall

8675

Males

7161

M40-44

7161

25K→30K

15.5 - 18.6 mi

Top 44%
×9stories
+181ft-148ft

Overall

12463

Males

8885

M40-44

8885

30K→20M

18.6 - 20.0 mi

Top 62%
×5stories
+64ft-50ft

Overall

17571

Males

11058

M40-44

11058

20M→21M

20.0 - 21.0 mi

Top 56%
×8stories
+106ft-24ft

Overall

15971

Males

10231

M40-44

10231

21M→35K

21.0 - 21.8 mi

Top 52%
×7stories
+17ft-86ft

Overall

14802

Males

9619

M40-44

9619

35K→23M

21.8 - 23.0 mi

Top 56%
×5stories
+23ft-63ft

Overall

15843

Males

9991

M40-44

9991

23M→24M

23.0 - 24.0 mi

Top 39%
×6stories
+12ft-82ft

Overall

11089

Males

7713

M40-44

7713

24M→40K

24.0 - 24.9 mi

Top 46%
×1story
+6ft-20ft

Overall

13148

Males

8587

M40-44

8587

40K→25.2M

24.9 - 25.2 mi

Top 27%
×1story
+13ft-16ft

Overall

7704

Males

5763

M40-44

5763

25.2M→Finish

25.2 - 26.2 mi

Top 25%
×2stories
+22ft-21ft

Overall

7019

Males

5349

M40-44

5349

Passing Analysis

Category:
Athletes Passed
1264*
Passed By
3680
Net Change
-2419
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7413
5K → 10K296132+164#7413#7249
10K → 15K28032+248#7249#7001
15K → 20K109247-138#7001#7139
20K → Half1032-22#7139#7161
Half → 25K73229-156#7161#7317
25K → 30K51746-695#7317#8012
30K → 20M11804-793#8012#8805
20M → 21M23481-458#8805#9263
21M → 35K20232-212#9263#9475
35K → 23M31480-450#9475#9925
23M → 24M8189-8#9925#9933
24M → 40K48153-107#9933#10040
40K → 25.2M73*10+63#10040#9977
25.2M → Finish15813+145#9977#9832
TOTALS1264*3680-2419

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

Passing Visuals

Category:

📈Position Graph

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🎨Heatmap Timeline

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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