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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Lucy Szlembarska

Bib: 22249 •F •Age: N/A

IL

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
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Race Performance Report

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  • Qualification readiness
  • Segment-by-segment breakdown
  • Personalized race insights
  • Downloadable athlete report
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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
26:46
3.11 mi
Rank: #20712
Start → 5K
26:46 | 8:37/mi
10K
53:26
6.21 mi
Rank: #20750 (-38)
5K → 10K
26:40 | 8:35/mi
15K
1:20:20
9.32 mi
Rank: #20854 (-104)
10K → 15K
26:54 | 8:40/mi
20K
1:46:57
12.43 mi
Rank: #20518 (+336)
15K → 20K
26:37 | 8:35/mi
HALF
1:52:43
13.11 mi
Rank: #20489 (+29)
20K → HALF
5:46 | 8:28/mi
25K
2:13:49
15.53 mi
Rank: #20357 (+132)
HALF → 25K
21:06 | 8:43/mi
30K
2:41:10
18.64 mi
Rank: #20016 (+341)
25K → 30K
27:21 | 8:49/mi
20M
2:54:24
20.00 mi
Rank: #20217 (-201)
30K → 20M
13:14 | 9:45/mi
21M
3:04:08
21.00 mi
Rank: #20187 (+30)
20M → 21M
9:44 | 9:44/mi
35K
3:10:30
21.75 mi
Rank: #20101 (+86)
21M → 35K
6:22 | 8:31/mi
23M
3:21:44
23.00 mi
Rank: #19998 (+103)
35K → 23M
11:14 | 8:59/mi
24M
3:30:08
24.00 mi
Rank: #19832 (+166)
23M → 24M
8:24 | 8:24/mi
40K
3:37:57
24.85 mi
Rank: #19801 (+31)
24M → 40K
7:49 | 9:09/mi
25.2M
3:41:03
25.20 mi
Rank: #19743 (+58)
40K → 25.2M
3:06 | 9:00/mi
FINISH
3:50:43
26.22 mi
Rank: #19874 (-131)
25.2M → FINISH
9:40 | 9:30/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:52:43
Pace8:36 /mi
2nd Half
Distance13.11 mi
Time1:58:00
Pace9:01 /mi
📊Positive Split: 4.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:32:2826:468:3726:46
8:37
-
10K
6.21 mi11:59:0853:268:3626:40
8:35
-0:02
15K
9.32 mi12:26:021:20:208:3826:54
8:40
+0:05
20K
12.43 mi12:52:391:46:578:3726:37
8:35
-0:05
HALF
13.11 mi12:58:251:52:438:365:46
8:28
-0:07
25K
15.53 mi13:19:312:13:498:3721:06
8:43
+0:15
30K
18.64 mi13:46:522:41:108:3927:21
8:49
+0:06
20M
20.00 mi14:00:062:54:248:4413:14
9:45
+0:56
21M
21.00 mi14:09:503:04:088:479:44
9:44
-0:01
35K
21.75 mi14:16:123:10:308:466:22
8:31
-1:13
23M
23.00 mi14:27:263:21:448:4711:14
8:59
+0:28
24M
24.00 mi14:35:503:30:088:468:24
8:24
-0:35
40K
24.85 mi14:43:393:37:578:477:49
9:09
+0:45
25.2M
25.20 mi14:46:453:41:038:473:06
9:00
-0:09
FINISH
26.22 mi14:56:253:50:438:499:40
9:30
+0:30

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

8:24 /mi

Average Pace

8:48 /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

3:18:05

86% of race

Time at Steady Pace

32:38

14% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:48 /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 mi11:32:2826:468:3726:46
8:37
#20712
10K
6.21 mi11:59:0853:268:3626:40
8:35
#20750
15K
9.32 mi12:26:021:20:208:3826:54
8:40
#20854
20K
12.43 mi12:52:391:46:578:3726:37
8:35
#20518
HALF
13.11 mi12:58:251:52:438:365:46
8:28
#20489
25K
15.53 mi13:19:312:13:498:3721:06
8:43
#20357
30K
18.64 mi13:46:522:41:108:3927:21
8:49
#20016
20M
20.00 mi14:00:062:54:248:4413:14
9:45
#20217
21M
21.00 mi14:09:503:04:088:479:44
9:44
#20187
35K
21.75 mi14:16:123:10:308:466:22
8:31
#20101
23M
23.00 mi14:27:263:21:448:4711:14
8:59
#19998
24M
24.00 mi14:35:503:30:088:468:24
8:24
#19832
40K
24.85 mi14:43:393:37:578:477:49
9:09
#19801
25.2M
25.20 mi14:46:453:41:038:473:06
9:00
#19743
FINISH
26.22 mi14:56:253:50:438:499:40
9:30
#19874
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 mi207128017801720982(Top 72%)8115(Top 65%)8115(Top 454%)
10K6.21 mi3.10 mi20750-388016+18016+120813(Top 72%)8039(Top 64%)8039(Top 450%)
15K9.32 mi3.11 mi20854-1048058-428058-4220982(Top 72%)8115(Top 65%)8115(Top 454%)
20K12.43 mi3.11 mi20518+3367895+1637895+16319700(Top 68%)7465(Top 59%)7465(Top 418%)
HALF13.11 mi0.68 mi20489+297882+137882+1320063(Top 69%)7619(Top 61%)7619(Top 427%)
25K15.53 mi2.42 mi20357+1327820+627820+6219737(Top 68%)7520(Top 60%)7520(Top 421%)
30K18.64 mi3.11 mi20016+3417662+1587662+15818614(Top 64%)7012(Top 56%)7012(Top 393%)
20M20.00 mi1.36 mi20217-2017785-1237785-12321848(Top 75%)8766(Top 70%)8766(Top 491%)
21M21.00 mi1.00 mi20187+307775+107775+1019526(Top 67%)7601(Top 60%)7601(Top 426%)
35K21.75 mi0.75 mi20101+867736+397736+3917688(Top 61%)6737(Top 54%)6737(Top 377%)
23M23.00 mi1.25 mi19998+1037712+247712+2418405(Top 63%)7175(Top 57%)7175(Top 402%)
24M24.00 mi1.00 mi19832+1667652+607652+6016366(Top 56%)6116(Top 49%)6116(Top 342%)
40K24.85 mi0.85 mi19801+317646+67646+619063(Top 66%)7606(Top 60%)7606(Top 426%)
25.2M25.20 mi0.35 mi19743+587618+287618+2814813(Top 51%)5382(Top 43%)5382(Top 301%)
FINISH26.22 mi1.02 mi19874-1317696-787696-7822303(Top 77%)9226(Top 73%)9226(Top 517%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 72%
×21
+97ft-345ft

Overall

20982

Females

8115

F45-49

8115

5K→10K

3.1 - 6.2 mi

Top 72%
×5
+79ft-138ft

Overall

20813

Females

8039

F45-49

8039

10K→15K

6.2 - 9.3 mi

Top 72%
×3
+67ft-78ft

Overall

20982

Females

8115

F45-49

8115

15K→20K

9.3 - 12.4 mi

Top 68%
×5
+106ft-86ft

Overall

19700

Females

7465

F45-49

7465

20K→HALF

12.4 - 13.1 mi

Top 69%
×2
+19ft-37ft

Overall

20063

Females

7619

F45-49

7619

HALF→25K

13.1 - 15.5 mi

Top 68%
×4
+66ft-88ft

Overall

19737

Females

7520

F45-49

7520

25K→30K

15.5 - 18.6 mi

Top 64%
×9
+181ft-148ft

Overall

18614

Females

7012

F45-49

7012

30K→20M

18.6 - 20.0 mi

Top 75%
×5
+64ft-50ft

Overall

21848

Females

8766

F45-49

8766

20M→21M

20.0 - 21.0 mi

Top 67%
×8
+106ft-24ft

Overall

19526

Females

7601

F45-49

7601

21M→35K

21.0 - 21.8 mi

Top 61%
×7
+17ft-86ft

Overall

17688

Females

6737

F45-49

6737

35K→23M

21.8 - 23.0 mi

Top 63%
×5
+23ft-63ft

Overall

18405

Females

7175

F45-49

7175

23M→24M

23.0 - 24.0 mi

Top 56%
×6
+12ft-82ft

Overall

16366

Females

6116

F45-49

6116

24M→40K

24.0 - 24.9 mi

Top 66%
×1
+6ft-20ft

Overall

19063

Females

7606

F45-49

7606

40K→25.2M

24.9 - 25.2 mi

Top 51%
×1
+13ft-16ft

Overall

14813

Females

5382

F45-49

5382

25.2M→FINISH

25.2 - 26.2 mi

Top 77%
×2
+22ft-21ft

Overall

22303

Females

9226

F45-49

9226

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
2027*
Passed By
1040
Net Change
+838
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20712
5K → 10K200200-38#20712#20750
10K → 15K154200-104#20750#20854
15K → 20K373*37+336#20854#20518
20K → HALF4415+29#20518#20489
HALF → 25K19361+132#20489#20357
25K → 30K367*26+341#20357#20016
30K → 20M52200-201#20016#20217
20M → 21M9161+30#20217#20187
21M → 35K959+86#20187#20101
35K → 23M14138+103#20101#19998
23M → 24M1704+166#19998#19832
24M → 40K6837+31#19832#19801
40K → 25.2M602+58#19801#19743
25.2M → FINISH19150-131#19743#19874
TOTALS2027*1040+838

* 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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