All Results|Race Analytics|Course|Contact
BOSTON MARATHON 2026

Yoonsoo Kim

Bib: 3966β€’M

Boston Marathon logo
0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 29021
Top 8%
Gender (Male)
#0 / 16340
Top 14%
Age Group (M18-39)
#0 / 5723
Top 34%
Race Day Weather
51Β°/41Β°F
overcast 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
19:31
3.11 mi
Rank: #2558
Start β†’ 5K
19:31 | 6:17/mi
10K
38:56
6.21 mi
Rank: #2537 (+21)
5K β†’ 10K
19:25 | 6:15/mi
15K
58:11
9.32 mi
Rank: #2405 (+132)
10K β†’ 15K
19:15 | 6:12/mi
20K
1:17:31
12.43 mi
Rank: #2325 (+80)
15K β†’ 20K
19:20 | 6:14/mi
HALF
1:21:46
13.11 mi
Rank: #2330 (-5)
20K β†’ HALF
4:15 | 6:15/mi
25K
1:36:54
15.53 mi
Rank: #2260 (+70)
HALF β†’ 25K
15:08 | 6:15/mi
30K
1:57:00
18.64 mi
Rank: #2266 (-6)
25K β†’ 30K
20:06 | 6:29/mi
20M
2:05:50
20.00 mi
Rank: #2260 (+6)
30K β†’ 20M
8:50 | 6:31/mi
21M
2:12:47
21.00 mi
Rank: #2278 (-18)
20M β†’ 21M
6:57 | 6:57/mi
35K
2:17:33
21.75 mi
Rank: #2285 (-7)
21M β†’ 35K
4:46 | 6:23/mi
23M
2:25:43
23.00 mi
Rank: #2274 (+11)
35K β†’ 23M
8:10 | 6:32/mi
24M
2:32:15
24.00 mi
Rank: #2290 (-16)
23M β†’ 24M
6:32 | 6:32/mi
40K
2:37:58
24.85 mi
Rank: #2320 (-30)
24M β†’ 40K
5:43 | 6:42/mi
25.2M
2:40:29
25.20 mi
Rank: #2334 (-14)
40K β†’ 25.2M
2:31 | 7:18/mi
FINISH
2:47:19
26.22 mi
Rank: #2406 (-72)
25.2M β†’ FINISH
6:50 | 6:43/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:21:46
Pace6:15 /mi
2nd Half
Distance13.11 mi
Time1:25:33
Pace6:32 /mi
πŸ“ŠPositive Split: 4.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:5819:316:1719:31
6:17
-
10K
6.21 mi10:41:2338:566:1619:25
6:15
-0:02
15K
9.32 mi11:00:3858:116:1519:15
6:12
-0:03
20K
12.43 mi11:19:581:17:316:1519:20
6:14
+0:02
HALF
13.11 mi11:24:131:21:466:154:15
6:15
+0:01
25K
15.53 mi11:39:211:36:546:1515:08
6:15
0:00
30K
18.64 mi11:59:271:57:006:1720:06
6:29
+0:14
20M
20.00 mi12:08:172:05:506:188:50
6:31
+0:02
21M
21.00 mi12:15:142:12:476:206:57
6:57
+0:26
35K
21.75 mi12:20:002:17:336:204:46
6:23
-0:34
23M
23.00 mi12:28:102:25:436:218:10
6:32
+0:09
24M
24.00 mi12:34:422:32:156:216:32
6:32
0:00
40K
24.85 mi12:40:252:37:586:225:43
6:42
+0:10
25.2M
25.20 mi12:42:562:40:296:232:31
7:18
+0:36
FINISH
26.22 mi12:49:462:47:196:246:50
6:43
-0:35

Checkpoint Splits Visualizations

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

πŸ“ˆPace 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

6:12 /mi

Average Pace

6:23 /mi

Slowest Pace

7:18 /mi

Loading chart...
Fastest
Middle
Slowest
Average

πŸ“ŠSegments

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

2:37:51

94% of race

Time at Steady Pace

9:28

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:23 /mi

Loading chart...
Faster pace (< avg)
Steady pace (β‰ˆ 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 mi10:21:5819:316:1719:31
6:17
#2558
10K
6.21 mi10:41:2338:566:1619:25
6:15
#2537
15K
9.32 mi11:00:3858:116:1519:15
6:12
#2405
20K
12.43 mi11:19:581:17:316:1519:20
6:14
#2325
HALF
13.11 mi11:24:131:21:466:154:15
6:15
#2330
25K
15.53 mi11:39:211:36:546:1515:08
6:15
#2260
30K
18.64 mi11:59:271:57:006:1720:06
6:29
#2266
20M
20.00 mi12:08:172:05:506:188:50
6:31
#2260
21M
21.00 mi12:15:142:12:476:206:57
6:57
#2278
35K
21.75 mi12:20:002:17:336:204:46
6:23
#2285
23M
23.00 mi12:28:102:25:436:218:10
6:32
#2274
24M
24.00 mi12:34:422:32:156:216:32
6:32
#2290
40K
24.85 mi12:40:252:37:586:225:43
6:42
#2320
25.2M
25.20 mi12:42:562:40:296:232:31
7:18
#2334
FINISH
26.22 mi12:49:462:47:196:246:50
6:43
#2406
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi2558245724572260(Top 8%)2180(Top 13%)2180(Top 38%)
10K6.21 mi3.10 mi2537+212442+152442+152529(Top 9%)2435(Top 15%)2435(Top 43%)
15K9.32 mi3.11 mi2405+1322319+1232319+1232260(Top 8%)2180(Top 13%)2180(Top 38%)
20K12.43 mi3.11 mi2325+802244+752244+752153(Top 7%)2075(Top 13%)2075(Top 36%)
HALF13.11 mi0.68 mi2330-52251-72251-72647(Top 9%)2551(Top 16%)2551(Top 45%)
25K15.53 mi2.42 mi2260+702182+692182+692028(Top 7%)1954(Top 12%)1954(Top 34%)
30K18.64 mi3.11 mi2266-62185-32185-32415(Top 8%)2315(Top 14%)2315(Top 40%)
20M20.00 mi1.36 mi2260+62180+52180+52432(Top 8%)2308(Top 14%)2308(Top 40%)
21M21.00 mi1.00 mi2278-182195-152195-153141(Top 11%)2911(Top 18%)2911(Top 51%)
35K21.75 mi0.75 mi2285-72199-42199-42825(Top 10%)2639(Top 16%)2639(Top 46%)
23M23.00 mi1.25 mi2274+112187+122187+122527(Top 9%)2369(Top 14%)2369(Top 41%)
24M24.00 mi1.00 mi2290-162199-122199-123313(Top 11%)3004(Top 18%)3004(Top 52%)
40K24.85 mi0.85 mi2320-302225-262225-263485(Top 12%)3114(Top 19%)3114(Top 54%)
25.2M25.20 mi0.35 mi2334-142239-142239-143987(Top 14%)3444(Top 21%)3444(Top 60%)
FINISH26.22 mi1.02 mi2406-722306-672306-675446(Top 19%)4491(Top 27%)4491(Top 78%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 8%
Γ—21
+97ft-345ft

Overall

2260

Males

2180

M18-39

2180

5K→10K

3.1 - 6.2 mi

Top 9%
Γ—5
+79ft-138ft

Overall

2529

Males

2435

M18-39

2435

10K→15K

6.2 - 9.3 mi

Top 8%
Γ—3
+67ft-78ft

Overall

2260

Males

2180

M18-39

2180

15K→20K

9.3 - 12.4 mi

Top 7%
Γ—5
+106ft-86ft

Overall

2153

Males

2075

M18-39

2075

20K→HALF

12.4 - 13.1 mi

Top 9%
Γ—2
+19ft-37ft

Overall

2647

Males

2551

M18-39

2551

HALF→25K

13.1 - 15.5 mi

Top 7%
Γ—4
+66ft-88ft

Overall

2028

Males

1954

M18-39

1954

25K→30K

15.5 - 18.6 mi

Top 8%
Γ—9
+181ft-148ft

Overall

2415

Males

2315

M18-39

2315

30K→20M

18.6 - 20.0 mi

Top 8%
Γ—5
+64ft-50ft

Overall

2432

Males

2308

M18-39

2308

20M→21M

20.0 - 21.0 mi

Top 11%
Γ—8
+106ft-24ft

Overall

3141

Males

2911

M18-39

2911

21M→35K

21.0 - 21.8 mi

Top 10%
Γ—7
+17ft-86ft

Overall

2825

Males

2639

M18-39

2639

35K→23M

21.8 - 23.0 mi

Top 9%
Γ—5
+23ft-63ft

Overall

2527

Males

2369

M18-39

2369

23M→24M

23.0 - 24.0 mi

Top 11%
Γ—6
+12ft-82ft

Overall

3313

Males

3004

M18-39

3004

24M→40K

24.0 - 24.9 mi

Top 12%
Γ—1
+6ft-20ft

Overall

3485

Males

3114

M18-39

3114

40K→25.2M

24.9 - 25.2 mi

Top 14%
Γ—1
+13ft-16ft

Overall

3987

Males

3444

M18-39

3444

25.2M→FINISH

25.2 - 26.2 mi

Top 19%
Γ—2
+22ft-21ft

Overall

5446

Males

4491

M18-39

4491

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
737
Passed By
585
Net Change
+152
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start β†’ 5K----#2558
5K β†’ 10K10887+21#2558#2537
10K β†’ 15K15220+132#2537#2405
15K β†’ 20K9616+80#2405#2325
20K β†’ HALF813-5#2325#2330
HALF β†’ 25K8111+70#2330#2260
25K β†’ 30K6470-6#2260#2266
30K β†’ 20M4236+6#2266#2260
20M β†’ 21M3149-18#2260#2278
21M β†’ 35K2835-7#2278#2285
35K β†’ 23M5140+11#2285#2274
23M β†’ 24M3450-16#2274#2290
24M β†’ 40K2050-30#2290#2320
40K β†’ 25.2M923-14#2320#2334
25.2M β†’ FINISH1385-72#2334#2406
TOTALS737585+152
πŸ“Š

Passing Analysis Visualizations

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

Time:
Category:

πŸ“ˆPosition Graph

Loading...

🎨Heatmap Timeline

Loading...

πŸ”„Passing Circle

Loading...

🌊Position Flow

Loading...

πŸƒRace 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