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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Castine Szwajkowski

Bib: 9825 •F •Age: N/A

NY

Boston Marathon logo
0:00
0:00
/ mi
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Overall
#0 / 29021
Top 48%
Gender (Female)
#0 / 12578
Top 35%
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
20:46
3.11 mi
Rank: #5760
Start → 5K
20:46 | 6:42/mi
10K
42:10
6.21 mi
Rank: #6760 (-1000)
5K → 10K
21:24 | 6:54/mi
15K
1:04:12
9.32 mi
Rank: #7714 (-954)
10K → 15K
22:02 | 7:06/mi
20K
1:30:23
12.43 mi
Rank: #10529 (-2815)
15K → 20K
26:11 | 8:26/mi
HALF
1:35:43
13.11 mi
Rank: #10838 (-309)
20K → HALF
5:20 | 7:50/mi
25K
1:55:08
15.53 mi
Rank: #11654 (-816)
HALF → 25K
19:25 | 8:01/mi
30K
2:20:56
18.64 mi
Rank: #12390 (-736)
25K → 30K
25:48 | 8:19/mi
20M
2:34:23
20.00 mi
Rank: #13442 (-1052)
30K → 20M
13:27 | 9:55/mi
21M
2:42:59
21.00 mi
Rank: #13440 (+2)
20M → 21M
8:36 | 8:36/mi
35K
2:48:43
21.75 mi
Rank: #13362 (+78)
21M → 35K
5:44 | 7:40/mi
23M
2:59:45
23.00 mi
Rank: #13647 (-285)
35K → 23M
11:02 | 8:49/mi
24M
3:07:56
24.00 mi
Rank: #13707 (-60)
23M → 24M
8:11 | 8:11/mi
40K
3:15:17
24.85 mi
Rank: #13788 (-81)
24M → 40K
7:21 | 8:36/mi
25.2M
3:18:57
25.20 mi
Rank: #13994 (-206)
40K → 25.2M
3:40 | 10:38/mi
FINISH
3:27:00
26.22 mi
Rank: #14024 (-30)
25.2M → FINISH
8:03 | 7:54/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:35:43
Pace7:19 /mi
2nd Half
Distance13.11 mi
Time1:51:17
Pace8:30 /mi
📊Positive Split: 16.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:37:1420:466:4220:46
6:42
-
10K
6.21 mi10:58:3842:106:4821:24
6:54
+0:12
15K
9.32 mi11:20:401:04:126:5422:02
7:06
+0:12
20K
12.43 mi11:46:511:30:237:1726:11
8:26
+1:20
HALF
13.11 mi11:52:111:35:437:195:20
7:50
-0:36
25K
15.53 mi12:11:361:55:087:2519:25
8:01
+0:11
30K
18.64 mi12:37:242:20:567:3425:48
8:19
+0:18
20M
20.00 mi12:50:512:34:237:4413:27
9:55
+1:36
21M
21.00 mi12:59:272:42:597:468:36
8:36
-1:19
35K
21.75 mi13:05:112:48:437:465:44
7:40
-0:56
23M
23.00 mi13:16:132:59:457:4911:02
8:49
+1:09
24M
24.00 mi13:24:243:07:567:508:11
8:11
-0:38
40K
24.85 mi13:31:453:15:177:527:21
8:36
+0:25
25.2M
25.20 mi13:35:253:18:577:543:40
10:38
+2:02
FINISH
26.22 mi13:43:283:27:007:558:03
7:54
-2:44

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

6:42 /mi

Average Pace

7:54 /mi

Slowest Pace

10:38 /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

1:09:56

34% of race

Time at Steady Pace

1:48:55

53% of race

Time at Slower Pace

28:09

14% of race

Average Pace: 7:54 /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 mi10:37:1420:466:4220:46
6:42
#5760
10K
6.21 mi10:58:3842:106:4821:24
6:54
#6760
15K
9.32 mi11:20:401:04:126:5422:02
7:06
#7714
20K
12.43 mi11:46:511:30:237:1726:11
8:26
#10529
HALF
13.11 mi11:52:111:35:437:195:20
7:50
#10838
25K
15.53 mi12:11:361:55:087:2519:25
8:01
#11654
30K
18.64 mi12:37:242:20:567:3425:48
8:19
#12390
20M
20.00 mi12:50:512:34:237:4413:27
9:55
#13442
21M
21.00 mi12:59:272:42:597:468:36
8:36
#13440
35K
21.75 mi13:05:112:48:437:465:44
7:40
#13362
23M
23.00 mi13:16:132:59:457:4911:02
8:49
#13647
24M
24.00 mi13:24:243:07:567:508:11
8:11
#13707
40K
24.85 mi13:31:453:15:177:527:21
8:36
#13788
25.2M
25.20 mi13:35:253:18:577:543:40
10:38
#13994
FINISH
26.22 mi13:43:283:27:007:558:03
7:54
#14024
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 mi57604674679229(Top 32%)1586(Top 13%)1586(Top 28%)
10K6.21 mi3.10 mi6760-1000703-236703-2367845(Top 27%)1039(Top 8%)1039(Top 18%)
15K9.32 mi3.11 mi7714-9541005-3021005-3029229(Top 32%)1586(Top 13%)1586(Top 28%)
20K12.43 mi3.11 mi10529-28152230-12252230-122518883(Top 65%)7007(Top 56%)7007(Top 123%)
HALF13.11 mi0.68 mi10838-3092389-1592389-15915752(Top 54%)5169(Top 41%)5169(Top 90%)
25K15.53 mi2.42 mi11654-8162842-4532842-45315459(Top 53%)5108(Top 41%)5108(Top 89%)
30K18.64 mi3.11 mi12390-7363302-4603302-46015645(Top 54%)5327(Top 42%)5327(Top 93%)
20M20.00 mi1.36 mi13442-10523922-6203922-62022308(Top 77%)9008(Top 72%)9008(Top 158%)
21M21.00 mi1.00 mi13440+23941-193941-1913776(Top 47%)4464(Top 35%)4464(Top 78%)
35K21.75 mi0.75 mi13362+783914+273914+2712126(Top 42%)3610(Top 29%)3610(Top 63%)
23M23.00 mi1.25 mi13647-2854112-1984112-19817528(Top 60%)6701(Top 53%)6701(Top 117%)
24M24.00 mi1.00 mi13707-604165-534165-5314993(Top 52%)5322(Top 42%)5322(Top 93%)
40K24.85 mi0.85 mi13788-814226-614226-6116282(Top 56%)6126(Top 49%)6126(Top 107%)
25.2M25.20 mi0.35 mi13994-2064359-1334359-13321458(Top 74%)8790(Top 70%)8790(Top 154%)
FINISH26.22 mi1.02 mi14024-304397-384397-3814513(Top 50%)5183(Top 41%)5183(Top 91%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 32%
×21
+97ft-345ft

Overall

9229

Females

1586

F18-39

1586

5K→10K

3.1 - 6.2 mi

Top 27%
×5
+79ft-138ft

Overall

7845

Females

1039

F18-39

1039

10K→15K

6.2 - 9.3 mi

Top 32%
×3
+67ft-78ft

Overall

9229

Females

1586

F18-39

1586

15K→20K

9.3 - 12.4 mi

Top 65%
×5
+106ft-86ft

Overall

18883

Females

7007

F18-39

7007

20K→HALF

12.4 - 13.1 mi

Top 54%
×2
+19ft-37ft

Overall

15752

Females

5169

F18-39

5169

HALF→25K

13.1 - 15.5 mi

Top 53%
×4
+66ft-88ft

Overall

15459

Females

5108

F18-39

5108

25K→30K

15.5 - 18.6 mi

Top 54%
×9
+181ft-148ft

Overall

15645

Females

5327

F18-39

5327

30K→20M

18.6 - 20.0 mi

Top 77%
×5
+64ft-50ft

Overall

22308

Females

9008

F18-39

9008

20M→21M

20.0 - 21.0 mi

Top 47%
×8
+106ft-24ft

Overall

13776

Females

4464

F18-39

4464

21M→35K

21.0 - 21.8 mi

Top 42%
×7
+17ft-86ft

Overall

12126

Females

3610

F18-39

3610

35K→23M

21.8 - 23.0 mi

Top 60%
×5
+23ft-63ft

Overall

17528

Females

6701

F18-39

6701

23M→24M

23.0 - 24.0 mi

Top 52%
×6
+12ft-82ft

Overall

14993

Females

5322

F18-39

5322

24M→40K

24.0 - 24.9 mi

Top 56%
×1
+6ft-20ft

Overall

16282

Females

6126

F18-39

6126

40K→25.2M

24.9 - 25.2 mi

Top 74%
×1
+13ft-16ft

Overall

21458

Females

8790

F18-39

8790

25.2M→FINISH

25.2 - 26.2 mi

Top 50%
×2
+22ft-21ft

Overall

14513

Females

5183

F18-39

5183

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
519
Passed By
2222
Net Change
-8264
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5760
5K → 10K27200-1000#5760#6760
10K → 15K10200-954#6760#7714
15K → 20K4200-2815#7714#10529
20K → HALF4200-309#10529#10838
HALF → 25K30200-816#10838#11654
25K → 30K58200-736#11654#12390
30K → 20M11200-1052#12390#13442
20M → 21M8785+2#13442#13440
21M → 35K9416+78#13440#13362
35K → 23M41200-285#13362#13647
23M → 24M56116-60#13647#13707
24M → 40K36117-81#13707#13788
40K → 25.2M3200-206#13788#13994
25.2M → FINISH5888-30#13994#14024
TOTALS5192222-8264
📊

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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