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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Jaedon Koo

Bib: 10476 •M •Age: N/A

Boston Marathon logo
0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Top 43%
Gender (Male)
#0 / 16340
Masters (Masters Men)
#0 / 10617
Top 45%
Age Group (M50-54)
#0 / 1868
Race Day Weather
51°/41°F
overcast clouds
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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
22:05
3.11 mi
Rank: #9414
Start → 5K
22:05 | 7:07/mi
10K
44:42
6.21 mi
Rank: #10131 (-717)
5K → 10K
22:37 | 7:17/mi
15K
1:07:40
9.32 mi
Rank: #10688 (-557)
10K → 15K
22:58 | 7:24/mi
20K
1:30:51
12.43 mi
Rank: #10922 (-234)
15K → 20K
23:11 | 7:28/mi
HALF
1:35:57
13.11 mi
Rank: #11033 (-111)
20K → HALF
5:06 | 7:29/mi
25K
1:54:37
15.53 mi
Rank: #11353 (-320)
HALF → 25K
18:40 | 7:42/mi
30K
2:20:11
18.64 mi
Rank: #12031 (-678)
25K → 30K
25:34 | 8:14/mi
20M
2:31:02
20.00 mi
Rank: #12092 (-61)
30K → 20M
10:51 | 8:00/mi
21M
2:39:56
21.00 mi
Rank: #12291 (-199)
20M → 21M
8:54 | 8:54/mi
35K
2:45:39
21.75 mi
Rank: #12261 (+30)
21M → 35K
5:43 | 7:39/mi
23M
2:55:41
23.00 mi
Rank: #12261
35K → 23M
10:02 | 8:02/mi
24M
3:03:28
24.00 mi
Rank: #12232 (+29)
23M → 24M
7:47 | 7:47/mi
40K
3:10:24
24.85 mi
Rank: #12239 (-7)
24M → 40K
6:56 | 8:07/mi
25.2M
3:13:30
25.20 mi
Rank: #12268 (-29)
40K → 25.2M
3:06 | 9:00/mi
FINISH
3:21:37
26.22 mi
Rank: #12358 (-90)
25.2M → FINISH
8:07 | 7:58/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:35:57
Pace7:20 /mi
2nd Half
Distance13.11 mi
Time1:45:40
Pace8:04 /mi
📊Positive Split: 10.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:0822:057:0722:05
7:07
-
10K
6.21 mi11:12:4544:427:1222:37
7:17
+0:10
15K
9.32 mi11:35:431:07:407:1622:58
7:24
+0:07
20K
12.43 mi11:58:541:30:517:1923:11
7:28
+0:04
HALF
13.11 mi12:04:001:35:577:205:06
7:29
+0:01
25K
15.53 mi12:22:401:54:377:2318:40
7:42
+0:13
30K
18.64 mi12:48:142:20:117:3225:34
8:14
+0:32
20M
20.00 mi12:59:052:31:027:3410:51
8:00
-0:14
21M
21.00 mi13:07:592:39:567:378:54
8:54
+0:54
35K
21.75 mi13:13:422:45:397:385:43
7:39
-1:15
23M
23.00 mi13:23:442:55:417:3910:02
8:02
+0:23
24M
24.00 mi13:31:313:03:287:397:47
7:47
-0:15
40K
24.85 mi13:38:273:10:247:406:56
8:07
+0:20
25.2M
25.20 mi13:41:333:13:307:413:06
9:00
+0:53
FINISH
26.22 mi13:49:403:21:377:428:07
7:58
-1:02

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

7:07 /mi

Average Pace

7:42 /mi

Slowest Pace

9:00 /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

1:35:57

48% of race

Time at Steady Pace

1:01:10

30% of race

Time at Slower Pace

44:30

22% of race

Average Pace: 7:41 /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 mi10:50:0822:057:0722:05
7:07
#9414
10K
6.21 mi11:12:4544:427:1222:37
7:17
#10131
15K
9.32 mi11:35:431:07:407:1622:58
7:24
#10688
20K
12.43 mi11:58:541:30:517:1923:11
7:28
#10922
HALF
13.11 mi12:04:001:35:577:205:06
7:29
#11033
25K
15.53 mi12:22:401:54:377:2318:40
7:42
#11353
30K
18.64 mi12:48:142:20:117:3225:34
8:14
#12031
20M
20.00 mi12:59:052:31:027:3410:51
8:00
#12092
21M
21.00 mi13:07:592:39:567:378:54
8:54
#12291
35K
21.75 mi13:13:422:45:397:385:43
7:39
#12261
23M
23.00 mi13:23:442:55:417:3910:02
8:02
#12261
24M
24.00 mi13:31:313:03:287:397:47
7:47
#12232
40K
24.85 mi13:38:273:10:247:406:56
8:07
#12239
25.2M
25.20 mi13:41:333:13:307:413:06
9:00
#12268
FINISH
26.22 mi13:49:403:21:377:428:07
7:58
#12358
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 mi94147781778111868(Top 41%)8875(Top 54%)8875(Top 475%)
10K6.21 mi3.10 mi10131-7178138-3578138-35710960(Top 38%)8519(Top 52%)8519(Top 456%)
15K9.32 mi3.11 mi10688-5578388-2508388-25011868(Top 41%)8875(Top 54%)8875(Top 475%)
20K12.43 mi3.11 mi10922-2348452-648452-6411631(Top 40%)8687(Top 53%)8687(Top 465%)
HALF13.11 mi0.68 mi11033-1118506-548506-5412809(Top 44%)9278(Top 57%)9278(Top 497%)
25K15.53 mi2.42 mi11353-3208636-1308636-13012998(Top 45%)9214(Top 56%)9214(Top 493%)
30K18.64 mi3.11 mi12031-6788884-2488884-24815104(Top 52%)10016(Top 61%)10016(Top 536%)
20M20.00 mi1.36 mi12092-618888-48888-412721(Top 44%)8888(Top 54%)8888(Top 476%)
21M21.00 mi1.00 mi12291-1998955-678955-6715533(Top 54%)10038(Top 61%)10038(Top 537%)
35K21.75 mi0.75 mi12261+308933+228933+2211882(Top 41%)8380(Top 51%)8380(Top 449%)
23M23.00 mi1.25 mi122618896+378896+3712553(Top 43%)8619(Top 53%)8619(Top 461%)
24M24.00 mi1.00 mi12232+298854+428854+4212145(Top 42%)8314(Top 51%)8314(Top 445%)
40K24.85 mi0.85 mi12239-78840+148840+1413160(Top 45%)8694(Top 53%)8694(Top 465%)
25.2M25.20 mi0.35 mi12268-298844-48844-414575(Top 50%)9313(Top 57%)9313(Top 499%)
FINISH26.22 mi1.02 mi12358-908860-168860-1614910(Top 51%)9458(Top 58%)9458(Top 506%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 41%
×21
+97ft-345ft

Overall

11868

Males

8875

M50-54

8875

5K→10K

3.1 - 6.2 mi

Top 38%
×5
+79ft-138ft

Overall

10960

Males

8519

M50-54

8519

10K→15K

6.2 - 9.3 mi

Top 41%
×3
+67ft-78ft

Overall

11868

Males

8875

M50-54

8875

15K→20K

9.3 - 12.4 mi

Top 40%
×5
+106ft-86ft

Overall

11631

Males

8687

M50-54

8687

20K→HALF

12.4 - 13.1 mi

Top 44%
×2
+19ft-37ft

Overall

12809

Males

9278

M50-54

9278

HALF→25K

13.1 - 15.5 mi

Top 45%
×4
+66ft-88ft

Overall

12998

Males

9214

M50-54

9214

25K→30K

15.5 - 18.6 mi

Top 52%
×9
+181ft-148ft

Overall

15104

Males

10016

M50-54

10016

30K→20M

18.6 - 20.0 mi

Top 44%
×5
+64ft-50ft

Overall

12721

Males

8888

M50-54

8888

20M→21M

20.0 - 21.0 mi

Top 54%
×8
+106ft-24ft

Overall

15533

Males

10038

M50-54

10038

21M→35K

21.0 - 21.8 mi

Top 41%
×7
+17ft-86ft

Overall

11882

Males

8380

M50-54

8380

35K→23M

21.8 - 23.0 mi

Top 43%
×5
+23ft-63ft

Overall

12553

Males

8619

M50-54

8619

23M→24M

23.0 - 24.0 mi

Top 42%
×6
+12ft-82ft

Overall

12145

Males

8314

M50-54

8314

24M→40K

24.0 - 24.9 mi

Top 45%
×1
+6ft-20ft

Overall

13160

Males

8694

M50-54

8694

40K→25.2M

24.9 - 25.2 mi

Top 50%
×1
+13ft-16ft

Overall

14575

Males

9313

M50-54

9313

25.2M→FINISH

25.2 - 26.2 mi

Top 51%
×2
+22ft-21ft

Overall

14910

Males

9458

M50-54

9458

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
852
Passed By
1922
Net Change
-2944
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9414
5K → 10K53200-717#9414#10131
10K → 15K47200-557#10131#10688
15K → 20K101200-234#10688#10922
20K → HALF13124-111#10922#11033
HALF → 25K60200-320#11033#11353
25K → 30K66200-678#11353#12031
30K → 20M75136-61#12031#12092
20M → 21M42200-199#12092#12291
21M → 35K6333+30#12291#12261
35K → 23M1071070#12261#12261
23M → 24M8960+29#12261#12232
24M → 40K6875-7#12232#12239
40K → 25.2M2958-29#12239#12268
25.2M → FINISH39129-90#12268#12358
TOTALS8521922-2944
📊

Passing Analysis Visualizations

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

Time:
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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Activity Data

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