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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Bo Young Kim

Bib: 20920 •F •Age: N/A

Boston Marathon logo
0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Gender (Female)
#0 / 12578
Masters (Masters Women)
#0 / 6862
Age Group (F45-49)
#0 / 1786
Race Day Weather
51°/41°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
25:25
3.11 mi
Rank: #18120
Start → 5K
25:25 | 8:11/mi
10K
52:03
6.21 mi
Rank: #19489 (-1369)
5K → 10K
26:38 | 8:35/mi
15K
1:19:06
9.32 mi
Rank: #20072 (-583)
10K → 15K
27:03 | 8:43/mi
20K
1:46:19
12.43 mi
Rank: #20218 (-146)
15K → 20K
27:13 | 8:46/mi
HALF
1:52:01
13.11 mi
Rank: #20170 (+48)
20K → HALF
5:42 | 8:22/mi
25K
2:13:05
15.53 mi
Rank: #20097 (+73)
HALF → 25K
21:04 | 8:42/mi
30K
2:40:56
18.64 mi
Rank: #19947 (+150)
25K → 30K
27:51 | 8:58/mi
20M
2:53:17
20.00 mi
Rank: #19908 (+39)
30K → 20M
12:21 | 9:06/mi
21M
3:02:57
21.00 mi
Rank: #19884 (+24)
20M → 21M
9:40 | 9:40/mi
35K
3:09:42
21.75 mi
Rank: #19891 (-7)
21M → 35K
6:45 | 9:02/mi
23M
3:21:05
23.00 mi
Rank: #19834 (+57)
35K → 23M
11:23 | 9:06/mi
24M
3:29:52
24.00 mi
Rank: #19774 (+60)
23M → 24M
8:47 | 8:47/mi
40K
3:37:39
24.85 mi
Rank: #19748 (+26)
24M → 40K
7:47 | 9:07/mi
25.2M
3:41:03
25.20 mi
Rank: #19741 (+7)
40K → 25.2M
3:24 | 9:52/mi
FINISH
3:50:08
26.22 mi
Rank: #19763 (-22)
25.2M → FINISH
9:05 | 8:55/mi
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Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:52:01
Pace8:33 /mi
2nd Half
Distance13.11 mi
Time1:58:07
Pace9:01 /mi
📊Positive Split: 5.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:12:0125:258:1125:25
8:11
-
10K
6.21 mi11:38:3952:038:2326:38
8:35
+0:24
15K
9.32 mi12:05:421:19:068:3027:03
8:43
+0:08
20K
12.43 mi12:32:551:46:198:3427:13
8:46
+0:03
HALF
13.11 mi12:38:371:52:018:335:42
8:22
-0:24
25K
15.53 mi12:59:412:13:058:3521:04
8:42
+0:20
30K
18.64 mi13:27:322:40:568:3827:51
8:58
+0:16
20M
20.00 mi13:39:532:53:178:4012:21
9:06
+0:08
21M
21.00 mi13:49:333:02:578:439:40
9:40
+0:34
35K
21.75 mi13:56:183:09:428:446:45
9:02
-0:38
23M
23.00 mi14:07:413:21:058:4511:23
9:06
+0:04
24M
24.00 mi14:16:283:29:528:458:47
8:47
-0:19
40K
24.85 mi14:24:153:37:398:467:47
9:07
+0:20
25.2M
25.20 mi14:27:393:41:038:473:24
9:52
+0:45
FINISH
26.22 mi14:36:443:50:088:489:05
8:55
-0:57

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

8:11 /mi

Average Pace

8:47 /mi

Slowest Pace

9:52 /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

1:18:49

34% of race

Time at Steady Pace

2:18:15

60% of race

Time at Slower Pace

13:04

6% of race

Average Pace: 8:47 /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 mi11:12:0125:258:1125:25
8:11
#18120
10K
6.21 mi11:38:3952:038:2326:38
8:35
#19489
15K
9.32 mi12:05:421:19:068:3027:03
8:43
#20072
20K
12.43 mi12:32:551:46:198:3427:13
8:46
#20218
HALF
13.11 mi12:38:371:52:018:335:42
8:22
#20170
25K
15.53 mi12:59:412:13:058:3521:04
8:42
#20097
30K
18.64 mi13:27:322:40:568:3827:51
8:58
#19947
20M
20.00 mi13:39:532:53:178:4012:21
9:06
#19908
21M
21.00 mi13:49:333:02:578:439:40
9:40
#19884
35K
21.75 mi13:56:183:09:428:446:45
9:02
#19891
23M
23.00 mi14:07:413:21:058:4511:23
9:06
#19834
24M
24.00 mi14:16:283:29:528:458:47
8:47
#19774
40K
24.85 mi14:24:153:37:398:467:47
9:07
#19748
25.2M
25.20 mi14:27:393:41:038:473:24
9:52
#19741
FINISH
26.22 mi14:36:443:50:088:489:05
8:55
#19763
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi181206575657521238(Top 73%)8252(Top 66%)8252(Top 462%)
10K6.21 mi3.10 mi19489-13697337-7627337-76220754(Top 72%)8001(Top 64%)8001(Top 448%)
15K9.32 mi3.11 mi20072-5837649-3127649-31221238(Top 73%)8252(Top 66%)8252(Top 462%)
20K12.43 mi3.11 mi20218-1467743-947743-9420765(Top 72%)8028(Top 64%)8028(Top 449%)
HALF13.11 mi0.68 mi20170+487722+217722+2119480(Top 67%)7317(Top 58%)7317(Top 410%)
25K15.53 mi2.42 mi20097+737685+377685+3719648(Top 68%)7469(Top 59%)7469(Top 418%)
30K18.64 mi3.11 mi19947+1507621+647621+6419419(Top 67%)7441(Top 59%)7441(Top 417%)
20M20.00 mi1.36 mi19908+397625-47625-419381(Top 67%)7477(Top 59%)7477(Top 419%)
21M21.00 mi1.00 mi19884+247624+17624+119273(Top 66%)7471(Top 59%)7471(Top 418%)
35K21.75 mi0.75 mi19891-77635-117635-1120134(Top 69%)8006(Top 64%)8006(Top 448%)
23M23.00 mi1.25 mi19834+577629+67629+618973(Top 65%)7456(Top 59%)7456(Top 417%)
24M24.00 mi1.00 mi19774+607618+117618+1118465(Top 64%)7227(Top 57%)7227(Top 405%)
40K24.85 mi0.85 mi19748+267614+47614+418901(Top 65%)7523(Top 60%)7523(Top 421%)
25.2M25.20 mi0.35 mi19741+77616-27616-218916(Top 65%)7517(Top 60%)7517(Top 421%)
FINISH26.22 mi1.02 mi19763-227639-237639-2320168(Top 69%)8162(Top 65%)8162(Top 457%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 73%
×21
+97ft-345ft

Overall

21238

Females

8252

F45-49

8252

5K→10K

3.1 - 6.2 mi

Top 72%
×5
+79ft-138ft

Overall

20754

Females

8001

F45-49

8001

10K→15K

6.2 - 9.3 mi

Top 73%
×3
+67ft-78ft

Overall

21238

Females

8252

F45-49

8252

15K→20K

9.3 - 12.4 mi

Top 72%
×5
+106ft-86ft

Overall

20765

Females

8028

F45-49

8028

20K→HALF

12.4 - 13.1 mi

Top 67%
×2
+19ft-37ft

Overall

19480

Females

7317

F45-49

7317

HALF→25K

13.1 - 15.5 mi

Top 68%
×4
+66ft-88ft

Overall

19648

Females

7469

F45-49

7469

25K→30K

15.5 - 18.6 mi

Top 67%
×9
+181ft-148ft

Overall

19419

Females

7441

F45-49

7441

30K→20M

18.6 - 20.0 mi

Top 67%
×5
+64ft-50ft

Overall

19381

Females

7477

F45-49

7477

20M→21M

20.0 - 21.0 mi

Top 66%
×8
+106ft-24ft

Overall

19273

Females

7471

F45-49

7471

21M→35K

21.0 - 21.8 mi

Top 69%
×7
+17ft-86ft

Overall

20134

Females

8006

F45-49

8006

35K→23M

21.8 - 23.0 mi

Top 65%
×5
+23ft-63ft

Overall

18973

Females

7456

F45-49

7456

23M→24M

23.0 - 24.0 mi

Top 64%
×6
+12ft-82ft

Overall

18465

Females

7227

F45-49

7227

24M→40K

24.0 - 24.9 mi

Top 65%
×1
+6ft-20ft

Overall

18901

Females

7523

F45-49

7523

40K→25.2M

24.9 - 25.2 mi

Top 65%
×1
+13ft-16ft

Overall

18916

Females

7517

F45-49

7517

25.2M→FINISH

25.2 - 26.2 mi

Top 69%
×2
+22ft-21ft

Overall

20168

Females

8162

F45-49

8162

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1217*
Passed By
1187
Net Change
-1643
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18120
5K → 10K20200-1369#18120#19489
10K → 15K36200-583#19489#20072
15K → 20K119200-146#20072#20218
20K → HALF568+48#20218#20170
HALF → 25K15178+73#20170#20097
25K → 30K245*95+150#20097#19947
30K → 20M9859+39#19947#19908
20M → 21M10177+24#19908#19884
21M → 35K4148-7#19884#19891
35K → 23M10548+57#19891#19834
23M → 24M9333+60#19834#19774
24M → 40K7347+26#19774#19748
40K → 25.2M2922+7#19748#19741
25.2M → FINISH5072-22#19741#19763
TOTALS1217*1187-1643

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

📊

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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