All Results|Race Analytics|Course|Contact
BOSTON MARATHON 2025

Jin Gyou Kim

Bib: 5331•M

Masters
Boston Marathon logo
0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Age Group (M50-54)
#0 / 1996
Race Day Weather
50°/40°F
broken clouds

Race Timeline and Course Information

Your journey through the course with elevation, pacing, and checkpoint details

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K· 3.11 mi
20:51
Rank: #5556
Start → 5K
20:51 | 6:43/mi
10K· 6.21 mi
43:27
Rank: #7802 (-2246)
5K → 10K
22:36 | 7:16/mi
15K· 9.32 mi
1:07:48
Rank: #9988 (-2186)
10K → 15K
24:21 | 7:50/mi
20K· 12.43 mi
1:32:05
Rank: #10846 (-858)
15K → 20K
24:17 | 7:49/mi
Half· 13.11 mi
1:37:23
Rank: #11012 (-166)
20K → Half
5:18 | 7:46/mi
25K· 15.53 mi
1:57:04
Rank: #11648 (-636)
Half → 25K
19:41 | 8:07/mi
30K· 18.64 mi
2:24:20
Rank: #12605 (-957)
25K → 30K
27:16 | 8:47/mi
20M
2:37:11
Rank: #13202 (-597)
30K → 20M
12:51 | 9:27/mi
21M
2:47:44
Rank: #13765 (-563)
20M → 21M
10:33 | 10:33/mi
35K· 21.75 mi
3:01:03
Rank: #16139 (-2374)
21M → 35K
13:19 | 17:48/mi
23M
3:12:39
Rank: #16179 (-40)
35K → 23M
11:36 | 9:16/mi
24M
3:21:52
Rank: #16267 (-88)
23M → 24M
9:13 | 9:13/mi
40K· 24.85 mi
3:29:51
Rank: #16356 (-89)
24M → 40K
7:59 | 9:20/mi
25.2M
3:33:30
Rank: #16424 (-68)
40K → 25.2M
3:39 | 10:35/mi
Finish· 26.22 mi
3:43:10
Rank: #16666 (-242)
25.2M → Finish
9:40 | 9:29/mi
Is this your race?

Claim it — get your free Race Performance Report

An AI deep-dive into your pacing, rankings, and passing — built from your real splits and emailed to you, free.

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via Half
Distance13.11 mi
Time1:37:23
Pace7:26 /mi
2nd Half
Distance13.11 mi
Time2:05:47
Pace9:36 /mi
📊Positive Split: 29.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:47:1020:516:4320:51
6:43
-
10K
6.21 mi11:09:4643:277:0022:36
7:16
+0:33
15K
9.32 mi11:34:071:07:487:1624:21
7:50
+0:34
20K
12.43 mi11:58:241:32:057:2524:17
7:49
-0:01
Half
13.11 mi12:03:421:37:237:265:18
7:46
-0:03
25K
15.53 mi12:23:231:57:047:3219:41
8:07
+0:21
30K
18.64 mi12:50:392:24:207:4527:16
8:47
+0:40
20M
20.00 mi13:03:302:37:117:5212:51
9:27
+0:40
21M
21.00 mi13:14:032:47:447:5910:33
10:33
+1:06
35K
21.75 mi13:27:223:01:038:1913:19
17:48
+7:15
23M
23.00 mi13:38:583:12:398:2311:36
9:16
-8:32
24M
24.00 mi13:48:113:21:528:259:13
9:13
-0:03
40K
24.85 mi13:56:103:29:518:277:59
9:20
+0:07
25.2M
25.20 mi13:59:493:33:308:283:39
10:35
+1:15
Finish
26.22 mi14:09:293:43:108:319:40
9:29
-1:06

Checkpoint Splits Visualizations

Explore your race data through different visual perspectives. Scroll to discover each visualization.

📈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

6:43 /mi

Average Pace

8:31 /mi

Slowest Pace

17:48 /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

1:37:23

44% of race

Time at Steady Pace

1:38:16

44% of race

Time at Slower Pace

27:31

12% of race

Average Pace: 8:31 /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 mi10:47:1020:516:4320:51
6:43
#5556
10K
6.21 mi11:09:4643:277:0022:36
7:16
#7802
15K
9.32 mi11:34:071:07:487:1624:21
7:50
#9988
20K
12.43 mi11:58:241:32:057:2524:17
7:49
#10846
Half
13.11 mi12:03:421:37:237:265:18
7:46
#11012
25K
15.53 mi12:23:231:57:047:3219:41
8:07
#11648
30K
18.64 mi12:50:392:24:207:4527:16
8:47
#12605
20M
20.00 mi13:03:302:37:117:5212:51
9:27
#13202
21M
21.00 mi13:14:032:47:447:5910:33
10:33
#13765
35K
21.75 mi13:27:223:01:038:1913:19
17:48
#16139
23M
23.00 mi13:38:583:12:398:2311:36
9:16
#16179
24M
24.00 mi13:48:113:21:528:259:13
9:13
#16267
40K
24.85 mi13:56:103:29:518:277:59
9:20
#16356
25.2M
25.20 mi13:59:493:33:308:283:39
10:35
#16424
Finish
26.22 mi14:09:293:43:108:319:40
9:29
#16666
Faster pace
Steady pace
Slower pace

Rankings

Your position at each checkpoint and how you ranked in each segment

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi55565146514614694(Top 52%)10241(Top 64%)10241(Top 513%)
10K6.21 mi3.10 mi7802-22466857-17116857-171110142(Top 36%)8231(Top 51%)8231(Top 412%)
15K9.32 mi3.11 mi9988-21868125-12688125-126814694(Top 52%)10241(Top 64%)10241(Top 513%)
20K12.43 mi3.11 mi10846-8588557-4328557-43213400(Top 47%)9606(Top 60%)9606(Top 481%)
Half13.11 mi0.68 mi11012-1668641-848641-8413972(Top 49%)9916(Top 62%)9916(Top 497%)
25K15.53 mi2.42 mi11648-6368890-2498890-24914753(Top 52%)10100(Top 63%)10100(Top 506%)
30K18.64 mi3.11 mi12605-9579248-3589248-35816453(Top 58%)10694(Top 66%)10694(Top 536%)
20M20.00 mi1.36 mi13202-5979471-2239471-22318953(Top 67%)11663(Top 72%)11663(Top 584%)
21M21.00 mi1.00 mi13765-5639688-2179688-21720149(Top 71%)12097(Top 75%)12097(Top 606%)
35K21.75 mi0.75 mi16139-237410689-100110689-100128343(Top 100%)16063(Top 100%)16063(Top 805%)
23M23.00 mi1.25 mi16179-4010684+510684+517611(Top 62%)10770(Top 67%)10770(Top 540%)
24M24.00 mi1.00 mi16267-8810696-1210696-1218401(Top 65%)11102(Top 69%)11102(Top 556%)
40K24.85 mi0.85 mi16356-8910706-1010706-1017992(Top 63%)10818(Top 67%)10818(Top 542%)
25.2M25.20 mi0.35 mi16424-6810728-2210728-2219264(Top 68%)11423(Top 71%)11423(Top 572%)
Finish26.22 mi1.02 mi16666-24210795-6710795-6721103(Top 74%)12336(Top 77%)12336(Top 618%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 52%
×21stories
+97ft-345ft

Overall

14694

Males

10241

M50-54

10241

5K→10K

3.1 - 6.2 mi

Top 36%
×5stories
+79ft-138ft

Overall

10142

Males

8231

M50-54

8231

10K→15K

6.2 - 9.3 mi

Top 52%
×3stories
+67ft-78ft

Overall

14694

Males

10241

M50-54

10241

15K→20K

9.3 - 12.4 mi

Top 47%
×5stories
+106ft-86ft

Overall

13400

Males

9606

M50-54

9606

20K→Half

12.4 - 13.1 mi

Top 49%
×2stories
+19ft-37ft

Overall

13972

Males

9916

M50-54

9916

Half→25K

13.1 - 15.5 mi

Top 52%
×4stories
+66ft-88ft

Overall

14753

Males

10100

M50-54

10100

25K→30K

15.5 - 18.6 mi

Top 58%
×9stories
+181ft-148ft

Overall

16453

Males

10694

M50-54

10694

30K→20M

18.6 - 20.0 mi

Top 67%
×5stories
+64ft-50ft

Overall

18953

Males

11663

M50-54

11663

20M→21M

20.0 - 21.0 mi

Top 71%
×8stories
+106ft-24ft

Overall

20149

Males

12097

M50-54

12097

21M→35K

21.0 - 21.8 mi

Top 100%
×7stories
+17ft-86ft

Overall

28343

Males

16063

M50-54

16063

35K→23M

21.8 - 23.0 mi

Top 62%
×5stories
+23ft-63ft

Overall

17611

Males

10770

M50-54

10770

23M→24M

23.0 - 24.0 mi

Top 65%
×6stories
+12ft-82ft

Overall

18401

Males

11102

M50-54

11102

24M→40K

24.0 - 24.9 mi

Top 63%
×1story
+6ft-20ft

Overall

17992

Males

10818

M50-54

10818

40K→25.2M

24.9 - 25.2 mi

Top 68%
×1story
+13ft-16ft

Overall

19264

Males

11423

M50-54

11423

25.2M→Finish

25.2 - 26.2 mi

Top 74%
×2stories
+22ft-21ft

Overall

21103

Males

12336

M50-54

12336

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
470
Passed By
11577
Net Change
-11110
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5556
5K → 10K32249-2246#5556#7802
10K → 15K102195-2186#7802#9988
15K → 20K37893-858#9988#10846
20K → Half7173-166#10846#11012
Half → 25K54690-636#11012#11648
25K → 30K771034-957#11648#12605
30K → 20M36633-597#12605#13202
20M → 21M20583-563#13202#13765
21M → 35K12375-2374#13765#16139
35K → 23M92132-40#16139#16179
23M → 24M50138-88#16179#16267
24M → 40K44133-89#16267#16356
40K → 25.2M876-68#16356#16424
25.2M → Finish31273-242#16424#16666
TOTALS47011577-11110
📊

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:
Category:

📈Position Graph

Loading...

🎨Heatmap Timeline

Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Activity Data

Upload your GPX file to see detailed activity metrics

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export & Support

Download your data, get help, and share your feedback

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support
Share Feedback

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing