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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Kasey Halbleib

Bib: 15765 •F •Age: N/A

PA

Boston Marathon logo
0:00
0:00
/ mi
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Overall
#0 / 29021
Top 23%
Gender (Female)
#0 / 12578
Top 7%
Age Group (F18-39)
#0 / 5716
Top 13%
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
21:04
3.11 mi
Rank: #6705
Start → 5K
21:04 | 6:47/mi
10K
41:58
6.21 mi
Rank: #6453 (+252)
5K → 10K
20:54 | 6:44/mi
15K
1:02:48
9.32 mi
Rank: #6222 (+231)
10K → 15K
20:50 | 6:43/mi
20K
1:23:49
12.43 mi
Rank: #6062 (+160)
15K → 20K
21:01 | 6:46/mi
HALF
1:28:25
13.11 mi
Rank: #6084 (-22)
20K → HALF
4:36 | 6:45/mi
25K
1:45:33
15.53 mi
Rank: #6447 (-363)
HALF → 25K
17:08 | 7:04/mi
30K
2:08:01
18.64 mi
Rank: #6672 (-225)
25K → 30K
22:28 | 7:14/mi
20M
2:17:47
20.00 mi
Rank: #6656 (+16)
30K → 20M
9:46 | 7:12/mi
21M
2:25:38
21.00 mi
Rank: #6764 (-108)
20M → 21M
7:51 | 7:51/mi
35K
2:30:51
21.75 mi
Rank: #6745 (+19)
21M → 35K
5:13 | 6:59/mi
23M
2:40:45
23.00 mi
Rank: #6932 (-187)
35K → 23M
9:54 | 7:55/mi
24M
2:47:51
24.00 mi
Rank: #6906 (+26)
23M → 24M
7:06 | 7:06/mi
40K
2:54:10
24.85 mi
Rank: #6897 (+9)
24M → 40K
6:19 | 7:24/mi
25.2M
2:56:46
25.20 mi
Rank: #6854 (+43)
40K → 25.2M
2:36 | 7:33/mi
FINISH
3:03:41
26.22 mi
Rank: #6783 (+71)
25.2M → FINISH
6:55 | 6:48/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:28:25
Pace6:45 /mi
2nd Half
Distance13.11 mi
Time1:35:16
Pace7:17 /mi
📊Positive Split: 7.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:3621:046:4721:04
6:47
-
10K
6.21 mi11:13:3041:586:4620:54
6:44
-0:03
15K
9.32 mi11:34:201:02:486:4520:50
6:43
-0:01
20K
12.43 mi11:55:211:23:496:4521:01
6:46
+0:03
HALF
13.11 mi11:59:571:28:256:454:36
6:45
-0:01
25K
15.53 mi12:17:051:45:336:4817:08
7:04
+0:19
30K
18.64 mi12:39:332:08:016:5322:28
7:14
+0:10
20M
20.00 mi12:49:192:17:476:549:46
7:12
-0:02
21M
21.00 mi12:57:102:25:386:577:51
7:51
+0:39
35K
21.75 mi13:02:232:30:516:575:13
6:59
-0:52
23M
23.00 mi13:12:172:40:457:009:54
7:55
+0:56
24M
24.00 mi13:19:232:47:517:007:06
7:06
-0:49
40K
24.85 mi13:25:422:54:107:016:19
7:24
+0:18
25.2M
25.20 mi13:28:182:56:467:012:36
7:33
+0:09
FINISH
26.22 mi13:35:133:03:417:016:55
6:48
-0:45

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

7:01 /mi

Slowest Pace

7:55 /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

2:37:01

85% of race

Time at Steady Pace

26:40

15% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:00 /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 mi10:52:3621:046:4721:04
6:47
#6705
10K
6.21 mi11:13:3041:586:4620:54
6:44
#6453
15K
9.32 mi11:34:201:02:486:4520:50
6:43
#6222
20K
12.43 mi11:55:211:23:496:4521:01
6:46
#6062
HALF
13.11 mi11:59:571:28:256:454:36
6:45
#6084
25K
15.53 mi12:17:051:45:336:4817:08
7:04
#6447
30K
18.64 mi12:39:332:08:016:5322:28
7:14
#6672
20M
20.00 mi12:49:192:17:476:549:46
7:12
#6656
21M
21.00 mi12:57:102:25:386:577:51
7:51
#6764
35K
21.75 mi13:02:232:30:516:575:13
6:59
#6745
23M
23.00 mi13:12:172:40:457:009:54
7:55
#6932
24M
24.00 mi13:19:232:47:517:007:06
7:06
#6906
40K
24.85 mi13:25:422:54:107:016:19
7:24
#6897
25.2M
25.20 mi13:28:182:56:467:012:36
7:33
#6854
FINISH
26.22 mi13:35:133:03:417:016:55
6:48
#6783
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 mi67056866865912(Top 20%)546(Top 4%)546(Top 10%)
10K6.21 mi3.10 mi6453+252626+60626+606269(Top 22%)592(Top 5%)592(Top 10%)
15K9.32 mi3.11 mi6222+231572+54572+545912(Top 20%)546(Top 4%)546(Top 10%)
20K12.43 mi3.11 mi6062+160548+24548+245860(Top 20%)550(Top 4%)550(Top 10%)
HALF13.11 mi0.68 mi6084-22557-9557-96715(Top 23%)742(Top 6%)742(Top 13%)
25K15.53 mi2.42 mi6447-363655-98655-987882(Top 27%)1172(Top 9%)1172(Top 21%)
30K18.64 mi3.11 mi6672-225732-77732-777615(Top 26%)1211(Top 10%)1211(Top 21%)
20M20.00 mi1.36 mi6656+16739-7739-76908(Top 24%)1038(Top 8%)1038(Top 18%)
21M21.00 mi1.00 mi6764-108788-49788-498872(Top 31%)1964(Top 16%)1964(Top 34%)
35K21.75 mi0.75 mi6745+19791-3791-36917(Top 24%)1136(Top 9%)1136(Top 20%)
23M23.00 mi1.25 mi6932-187863-72863-7211835(Top 41%)3505(Top 28%)3505(Top 61%)
24M24.00 mi1.00 mi6906+26870-7870-77185(Top 25%)1360(Top 11%)1360(Top 24%)
40K24.85 mi0.85 mi6897+9884-14884-148070(Top 28%)1814(Top 14%)1814(Top 32%)
25.2M25.20 mi0.35 mi6854+43879+5879+55566(Top 19%)910(Top 7%)910(Top 16%)
FINISH26.22 mi1.02 mi6783+71874+5874+56051(Top 21%)1128(Top 9%)1128(Top 20%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 20%
×21
+97ft-345ft

Overall

5912

Females

546

F18-39

546

5K→10K

3.1 - 6.2 mi

Top 22%
×5
+79ft-138ft

Overall

6269

Females

592

F18-39

592

10K→15K

6.2 - 9.3 mi

Top 20%
×3
+67ft-78ft

Overall

5912

Females

546

F18-39

546

15K→20K

9.3 - 12.4 mi

Top 20%
×5
+106ft-86ft

Overall

5860

Females

550

F18-39

550

20K→HALF

12.4 - 13.1 mi

Top 23%
×2
+19ft-37ft

Overall

6715

Females

742

F18-39

742

HALF→25K

13.1 - 15.5 mi

Top 27%
×4
+66ft-88ft

Overall

7882

Females

1172

F18-39

1172

25K→30K

15.5 - 18.6 mi

Top 26%
×9
+181ft-148ft

Overall

7615

Females

1211

F18-39

1211

30K→20M

18.6 - 20.0 mi

Top 24%
×5
+64ft-50ft

Overall

6908

Females

1038

F18-39

1038

20M→21M

20.0 - 21.0 mi

Top 31%
×8
+106ft-24ft

Overall

8872

Females

1964

F18-39

1964

21M→35K

21.0 - 21.8 mi

Top 24%
×7
+17ft-86ft

Overall

6917

Females

1136

F18-39

1136

35K→23M

21.8 - 23.0 mi

Top 41%
×5
+23ft-63ft

Overall

11835

Females

3505

F18-39

3505

23M→24M

23.0 - 24.0 mi

Top 25%
×6
+12ft-82ft

Overall

7185

Females

1360

F18-39

1360

24M→40K

24.0 - 24.9 mi

Top 28%
×1
+6ft-20ft

Overall

8070

Females

1814

F18-39

1814

40K→25.2M

24.9 - 25.2 mi

Top 19%
×1
+13ft-16ft

Overall

5566

Females

910

F18-39

910

25.2M→FINISH

25.2 - 26.2 mi

Top 21%
×2
+22ft-21ft

Overall

6051

Females

1128

F18-39

1128

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1452*
Passed By
1186
Net Change
-78
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6705
5K → 10K344*92+252#6705#6453
10K → 15K278*47+231#6453#6222
15K → 20K221*61+160#6222#6062
20K → HALF1739-22#6062#6084
HALF → 25K40200-363#6084#6447
25K → 30K89200-225#6447#6672
30K → 20M7761+16#6672#6656
20M → 21M30138-108#6656#6764
21M → 35K5132+19#6764#6745
35K → 23M40200-187#6745#6932
23M → 24M6943+26#6932#6906
24M → 40K5445+9#6906#6897
40K → 25.2M529+43#6897#6854
25.2M → FINISH9019+71#6854#6783
TOTALS1452*1186-78

* 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

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