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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Kathryn Billow

Bib: 18007 •F •Age: N/A

NY

Boston Marathon logo
0:00
0:00
/ mi
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Overall
#0 / 29021
Gender (Female)
#0 / 12578
Top 39%
Age Group (F18-39)
#0 / 5716
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
24:30
3.11 mi
Rank: #16094
Start → 5K
24:30 | 7:54/mi
10K
48:27
6.21 mi
Rank: #15464 (+630)
5K → 10K
23:57 | 7:43/mi
15K
1:12:09
9.32 mi
Rank: #14903 (+561)
10K → 15K
23:42 | 7:38/mi
20K
1:35:57
12.43 mi
Rank: #14481 (+422)
15K → 20K
23:48 | 7:40/mi
HALF
1:41:06
13.11 mi
Rank: #14429 (+52)
20K → HALF
5:09 | 7:34/mi
25K
1:59:48
15.53 mi
Rank: #14171 (+258)
HALF → 25K
18:42 | 7:43/mi
30K
2:24:34
18.64 mi
Rank: #13975 (+196)
25K → 30K
24:46 | 7:59/mi
20M
2:35:54
20.00 mi
Rank: #14066 (-91)
30K → 20M
11:20 | 8:21/mi
21M
2:44:37
21.00 mi
Rank: #14058 (+8)
20M → 21M
8:43 | 8:43/mi
35K
2:51:01
21.75 mi
Rank: #14223 (-165)
21M → 35K
6:24 | 8:34/mi
23M
3:03:12
23.00 mi
Rank: #14850 (-627)
35K → 23M
12:11 | 9:45/mi
24M
3:12:11
24.00 mi
Rank: #15105 (-255)
23M → 24M
8:59 | 8:59/mi
40K
3:19:21
24.85 mi
Rank: #15088 (+17)
24M → 40K
7:10 | 8:23/mi
25.2M
3:22:30
25.20 mi
Rank: #15091 (-3)
40K → 25.2M
3:09 | 9:09/mi
FINISH
3:30:19
26.22 mi
Rank: #15010 (+81)
25.2M → FINISH
7:49 | 7:41/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
Time1:41:06
Pace7:43 /mi
2nd Half
Distance13.11 mi
Time1:49:13
Pace8:20 /mi
📊Positive Split: 8.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:06:3924:307:5424:30
7:54
-
10K
6.21 mi11:30:3648:277:4823:57
7:43
-0:11
15K
9.32 mi11:54:181:12:097:4523:42
7:38
-0:05
20K
12.43 mi12:18:061:35:577:4423:48
7:40
+0:02
HALF
13.11 mi12:23:151:41:067:435:09
7:34
-0:06
25K
15.53 mi12:41:571:59:487:4318:42
7:43
+0:09
30K
18.64 mi13:06:432:24:347:4624:46
7:59
+0:16
20M
20.00 mi13:18:032:35:547:4811:20
8:21
+0:22
21M
21.00 mi13:26:462:44:377:518:43
8:43
+0:22
35K
21.75 mi13:33:102:51:017:526:24
8:34
-0:09
23M
23.00 mi13:45:213:03:127:5812:11
9:45
+1:11
24M
24.00 mi13:54:203:12:118:018:59
8:59
-0:46
40K
24.85 mi14:01:303:19:218:027:10
8:23
-0:36
25.2M
25.20 mi14:04:393:22:308:033:09
9:09
+0:46
FINISH
26.22 mi14:12:283:30:198:027:49
7:41
-1:28

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

7:34 /mi

Average Pace

8:02 /mi

Slowest Pace

9:45 /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

28:51

14% of race

Time at Steady Pace

2:03:32

59% of race

Time at Slower Pace

57:56

28% of race

Average Pace: 8:01 /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 mi11:06:3924:307:5424:30
7:54
#16094
10K
6.21 mi11:30:3648:277:4823:57
7:43
#15464
15K
9.32 mi11:54:181:12:097:4523:42
7:38
#14903
20K
12.43 mi12:18:061:35:577:4423:48
7:40
#14481
HALF
13.11 mi12:23:151:41:067:435:09
7:34
#14429
25K
15.53 mi12:41:571:59:487:4318:42
7:43
#14171
30K
18.64 mi13:06:432:24:347:4624:46
7:59
#13975
20M
20.00 mi13:18:032:35:547:4811:20
8:21
#14066
21M
21.00 mi13:26:462:44:377:518:43
8:43
#14058
35K
21.75 mi13:33:102:51:017:526:24
8:34
#14223
23M
23.00 mi13:45:213:03:127:5812:11
9:45
#14850
24M
24.00 mi13:54:203:12:118:018:59
8:59
#15105
40K
24.85 mi14:01:303:19:218:027:10
8:23
#15088
25.2M
25.20 mi14:04:393:22:308:033:09
9:09
#15091
FINISH
26.22 mi14:12:283:30:198:027:49
7:41
#15010
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi160945379537913943(Top 48%)4112(Top 33%)4112(Top 72%)
10K6.21 mi3.10 mi15464+6305002+3775002+37714854(Top 51%)4607(Top 37%)4607(Top 81%)
15K9.32 mi3.11 mi14903+5614672+3304672+33013943(Top 48%)4112(Top 33%)4112(Top 72%)
20K12.43 mi3.11 mi14481+4224424+2484424+24813388(Top 46%)3882(Top 31%)3882(Top 68%)
HALF13.11 mi0.68 mi14429+524391+334391+3313544(Top 47%)3907(Top 31%)3907(Top 68%)
25K15.53 mi2.42 mi14171+2584266+1254266+12513159(Top 45%)3827(Top 30%)3827(Top 67%)
30K18.64 mi3.11 mi13975+1964180+864180+8613306(Top 46%)4022(Top 32%)4022(Top 70%)
20M20.00 mi1.36 mi14066-914266-864266-8615211(Top 52%)5185(Top 41%)5185(Top 91%)
21M21.00 mi1.00 mi14058+84297-314297-3114508(Top 50%)4857(Top 39%)4857(Top 85%)
35K21.75 mi0.75 mi14223-1654399-1024399-10217887(Top 62%)6821(Top 54%)6821(Top 119%)
23M23.00 mi1.25 mi14850-6274811-4124811-41221354(Top 74%)8655(Top 69%)8655(Top 151%)
24M24.00 mi1.00 mi15105-2554975-1644975-16419393(Top 67%)7715(Top 61%)7715(Top 135%)
40K24.85 mi0.85 mi15088+174983-84983-814976(Top 52%)5417(Top 43%)5417(Top 95%)
25.2M25.20 mi0.35 mi15091-34995-124995-1215490(Top 53%)5689(Top 45%)5689(Top 100%)
FINISH26.22 mi1.02 mi15010+814959+364959+3612789(Top 44%)4285(Top 34%)4285(Top 75%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 48%
×21
+97ft-345ft

Overall

13943

Females

4112

F18-39

4112

5K→10K

3.1 - 6.2 mi

Top 51%
×5
+79ft-138ft

Overall

14854

Females

4607

F18-39

4607

10K→15K

6.2 - 9.3 mi

Top 48%
×3
+67ft-78ft

Overall

13943

Females

4112

F18-39

4112

15K→20K

9.3 - 12.4 mi

Top 46%
×5
+106ft-86ft

Overall

13388

Females

3882

F18-39

3882

20K→HALF

12.4 - 13.1 mi

Top 47%
×2
+19ft-37ft

Overall

13544

Females

3907

F18-39

3907

HALF→25K

13.1 - 15.5 mi

Top 45%
×4
+66ft-88ft

Overall

13159

Females

3827

F18-39

3827

25K→30K

15.5 - 18.6 mi

Top 46%
×9
+181ft-148ft

Overall

13306

Females

4022

F18-39

4022

30K→20M

18.6 - 20.0 mi

Top 52%
×5
+64ft-50ft

Overall

15211

Females

5185

F18-39

5185

20M→21M

20.0 - 21.0 mi

Top 50%
×8
+106ft-24ft

Overall

14508

Females

4857

F18-39

4857

21M→35K

21.0 - 21.8 mi

Top 62%
×7
+17ft-86ft

Overall

17887

Females

6821

F18-39

6821

35K→23M

21.8 - 23.0 mi

Top 74%
×5
+23ft-63ft

Overall

21354

Females

8655

F18-39

8655

23M→24M

23.0 - 24.0 mi

Top 67%
×6
+12ft-82ft

Overall

19393

Females

7715

F18-39

7715

24M→40K

24.0 - 24.9 mi

Top 52%
×1
+6ft-20ft

Overall

14976

Females

5417

F18-39

5417

40K→25.2M

24.9 - 25.2 mi

Top 53%
×1
+13ft-16ft

Overall

15490

Females

5689

F18-39

5689

25.2M→FINISH

25.2 - 26.2 mi

Top 44%
×2
+22ft-21ft

Overall

12789

Females

4285

F18-39

4285

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
2853*
Passed By
1246
Net Change
+1084
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16094
5K → 10K713*83+630#16094#15464
10K → 15K600*39+561#15464#14903
15K → 20K440*18+422#14903#14481
20K → HALF586+52#14481#14429
HALF → 25K292*34+258#14429#14171
25K → 30K291*95+196#14171#13975
30K → 20M73164-91#13975#14066
20M → 21M10294+8#14066#14058
21M → 35K29194-165#14058#14223
35K → 23M16200-627#14223#14850
23M → 24M25200-255#14850#15105
24M → 40K7659+17#15105#15088
40K → 25.2M3336-3#15088#15091
25.2M → FINISH10524+81#15091#15010
TOTALS2853*1246+1084

* 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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Qualifying & Age Grade

See how your performance stacks up against qualifying standards

OTQ

Olympic Trials Qualifying analysis available

Activity Data

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