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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Kirsten Kalkhurst Burbo

Bib: 24549 •F •Age: N/A

MA

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 (F55-59)
#0 / 951
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
27:59
3.11 mi
Rank: #22707
Start → 5K
27:59 | 9:01/mi
10K
55:55
6.21 mi
Rank: #22744 (-37)
5K → 10K
27:56 | 9:00/mi
15K
1:25:43
9.32 mi
Rank: #23532 (-788)
10K → 15K
29:48 | 9:36/mi
20K
1:53:41
12.43 mi
Rank: #23145 (+387)
15K → 20K
27:58 | 9:01/mi
HALF
1:59:48
13.11 mi
Rank: #23118 (+27)
20K → HALF
6:07 | 8:59/mi
25K
2:21:42
15.53 mi
Rank: #22820 (+298)
HALF → 25K
21:54 | 9:02/mi
30K
2:50:41
18.64 mi
Rank: #22457 (+363)
25K → 30K
28:59 | 9:20/mi
20M
3:03:17
20.00 mi
Rank: #22263 (+194)
30K → 20M
12:36 | 9:17/mi
21M
3:13:19
21.00 mi
Rank: #22142 (+121)
20M → 21M
10:02 | 10:02/mi
35K
3:20:09
21.75 mi
Rank: #22076 (+66)
21M → 35K
6:50 | 9:09/mi
23M
3:33:04
23.00 mi
Rank: #22160 (-84)
35K → 23M
12:55 | 10:20/mi
24M
3:42:14
24.00 mi
Rank: #22080 (+80)
23M → 24M
9:10 | 9:10/mi
40K
3:50:25
24.85 mi
Rank: #22040 (+40)
24M → 40K
8:11 | 9:35/mi
25.2M
3:54:02
25.20 mi
Rank: #22031 (+9)
40K → 25.2M
3:37 | 10:30/mi
FINISH
4:03:54
26.22 mi
Rank: #22060 (-29)
25.2M → FINISH
9:52 | 9:41/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:59:48
Pace9:09 /mi
2nd Half
Distance13.11 mi
Time2:04:06
Pace9:28 /mi
📊Positive Split: 3.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:32:5427:599:0127:59
9:01
-
10K
6.21 mi12:00:5055:559:0027:56
9:00
-0:01
15K
9.32 mi12:30:381:25:439:1229:48
9:36
+0:36
20K
12.43 mi12:58:361:53:419:0927:58
9:01
-0:35
HALF
13.11 mi13:04:431:59:489:096:07
8:59
-0:02
25K
15.53 mi13:26:372:21:429:0821:54
9:02
+0:03
30K
18.64 mi13:55:362:50:419:1028:59
9:20
+0:18
20M
20.00 mi14:08:123:03:179:1012:36
9:17
-0:03
21M
21.00 mi14:18:143:13:199:1310:02
10:02
+0:45
35K
21.75 mi14:25:043:20:099:136:50
9:09
-0:53
23M
23.00 mi14:37:593:33:049:1612:55
10:20
+1:11
24M
24.00 mi14:47:093:42:149:169:10
9:10
-1:10
40K
24.85 mi14:55:203:50:259:178:11
9:35
+0:25
25.2M
25.20 mi14:58:573:54:029:183:37
10:30
+0:55
FINISH
26.22 mi15:08:494:03:549:199:52
9:41
-0:49

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

8:59 /mi

Average Pace

9:19 /mi

Slowest Pace

10:30 /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

3:37:20

89% of race

Time at Steady Pace

26:34

11% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 9:18 /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 mi11:32:5427:599:0127:59
9:01
#22707
10K
6.21 mi12:00:5055:559:0027:56
9:00
#22744
15K
9.32 mi12:30:381:25:439:1229:48
9:36
#23532
20K
12.43 mi12:58:361:53:419:0927:58
9:01
#23145
HALF
13.11 mi13:04:431:59:489:096:07
8:59
#23118
25K
15.53 mi13:26:372:21:429:0821:54
9:02
#22820
30K
18.64 mi13:55:362:50:419:1028:59
9:20
#22457
20M
20.00 mi14:08:123:03:179:1012:36
9:17
#22263
21M
21.00 mi14:18:143:13:199:1310:02
10:02
#22142
35K
21.75 mi14:25:043:20:099:136:50
9:09
#22076
23M
23.00 mi14:37:593:33:049:1612:55
10:20
#22160
24M
24.00 mi14:47:093:42:149:169:10
9:10
#22080
40K
24.85 mi14:55:203:50:259:178:11
9:35
#22040
25.2M
25.20 mi14:58:573:54:029:183:37
10:30
#22031
FINISH
26.22 mi15:08:494:03:549:199:52
9:41
#22060
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi227079027902724677(Top 85%)10011(Top 80%)10011(Top 1053%)
10K6.21 mi3.10 mi22744-379028-19028-122804(Top 79%)9046(Top 72%)9046(Top 951%)
15K9.32 mi3.11 mi23532-7889426-3989426-39824677(Top 85%)10011(Top 80%)10011(Top 1053%)
20K12.43 mi3.11 mi23145+3879245+1819245+18121924(Top 76%)8622(Top 69%)8622(Top 907%)
HALF13.11 mi0.68 mi23118+279227+189227+1822668(Top 78%)8988(Top 71%)8988(Top 945%)
25K15.53 mi2.42 mi22820+2989081+1469081+14621337(Top 74%)8340(Top 66%)8340(Top 877%)
30K18.64 mi3.11 mi22457+3638927+1548927+15421065(Top 73%)8297(Top 66%)8297(Top 872%)
20M20.00 mi1.36 mi22263+1948833+948833+9420218(Top 70%)7932(Top 63%)7932(Top 834%)
21M21.00 mi1.00 mi22142+1218786+478786+4720566(Top 71%)8149(Top 65%)8149(Top 857%)
35K21.75 mi0.75 mi22076+668761+258761+2520591(Top 71%)8244(Top 66%)8244(Top 867%)
23M23.00 mi1.25 mi22160-848821-608821-6022957(Top 79%)9492(Top 75%)9492(Top 998%)
24M24.00 mi1.00 mi22080+808796+258796+2520166(Top 69%)8142(Top 65%)8142(Top 856%)
40K24.85 mi0.85 mi22040+408783+138783+1320658(Top 71%)8409(Top 67%)8409(Top 884%)
25.2M25.20 mi0.35 mi22031+98786-38786-321048(Top 73%)8590(Top 68%)8590(Top 903%)
FINISH26.22 mi1.02 mi22060-298814-288814-2822920(Top 79%)9560(Top 76%)9560(Top 1005%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 85%
×21
+97ft-345ft

Overall

24677

Females

10011

F55-59

10011

5K→10K

3.1 - 6.2 mi

Top 79%
×5
+79ft-138ft

Overall

22804

Females

9046

F55-59

9046

10K→15K

6.2 - 9.3 mi

Top 85%
×3
+67ft-78ft

Overall

24677

Females

10011

F55-59

10011

15K→20K

9.3 - 12.4 mi

Top 76%
×5
+106ft-86ft

Overall

21924

Females

8622

F55-59

8622

20K→HALF

12.4 - 13.1 mi

Top 78%
×2
+19ft-37ft

Overall

22668

Females

8988

F55-59

8988

HALF→25K

13.1 - 15.5 mi

Top 74%
×4
+66ft-88ft

Overall

21337

Females

8340

F55-59

8340

25K→30K

15.5 - 18.6 mi

Top 73%
×9
+181ft-148ft

Overall

21065

Females

8297

F55-59

8297

30K→20M

18.6 - 20.0 mi

Top 70%
×5
+64ft-50ft

Overall

20218

Females

7932

F55-59

7932

20M→21M

20.0 - 21.0 mi

Top 71%
×8
+106ft-24ft

Overall

20566

Females

8149

F55-59

8149

21M→35K

21.0 - 21.8 mi

Top 71%
×7
+17ft-86ft

Overall

20591

Females

8244

F55-59

8244

35K→23M

21.8 - 23.0 mi

Top 79%
×5
+23ft-63ft

Overall

22957

Females

9492

F55-59

9492

23M→24M

23.0 - 24.0 mi

Top 69%
×6
+12ft-82ft

Overall

20166

Females

8142

F55-59

8142

24M→40K

24.0 - 24.9 mi

Top 71%
×1
+6ft-20ft

Overall

20658

Females

8409

F55-59

8409

40K→25.2M

24.9 - 25.2 mi

Top 73%
×1
+13ft-16ft

Overall

21048

Females

8590

F55-59

8590

25.2M→FINISH

25.2 - 26.2 mi

Top 79%
×2
+22ft-21ft

Overall

22920

Females

9560

F55-59

9560

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
2082*
Passed By
789
Net Change
+647
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22707
5K → 10K200200-37#22707#22744
10K → 15K21200-788#22744#23532
15K → 20K408*21+387#23532#23145
20K → HALF4316+27#23145#23118
HALF → 25K315*17+298#23118#22820
25K → 30K402*39+363#22820#22457
30K → 20M201*7+194#22457#22263
20M → 21M14120+121#22263#22142
21M → 35K8317+66#22142#22076
35K → 23M58142-84#22076#22160
23M → 24M9515+80#22160#22080
24M → 40K5818+40#22080#22040
40K → 25.2M2617+9#22040#22031
25.2M → FINISH3160-29#22031#22060
TOTALS2082*789+647

* 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

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OTQ

Olympic Trials Qualifying analysis available

Activity Data

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