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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Martha Castillon

Bib: 24470 •F •Age: N/A

AZ

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
26:41
3.11 mi
Rank: #20571
Start → 5K
26:41 | 8:36/mi
10K
52:59
6.21 mi
Rank: #20326 (+245)
5K → 10K
26:18 | 8:28/mi
15K
1:19:47
9.32 mi
Rank: #20488 (-162)
10K → 15K
26:48 | 8:38/mi
20K
1:47:10
12.43 mi
Rank: #20639 (-151)
15K → 20K
27:23 | 8:49/mi
HALF
1:53:04
13.11 mi
Rank: #20655 (-16)
20K → HALF
5:54 | 8:40/mi
25K
2:16:29
15.53 mi
Rank: #21256 (-601)
HALF → 25K
23:25 | 9:40/mi
30K
2:46:43
18.64 mi
Rank: #21514 (-258)
25K → 30K
30:14 | 9:44/mi
20M
3:00:17
20.00 mi
Rank: #21617 (-103)
30K → 20M
13:34 | 10:00/mi
21M
3:10:45
21.00 mi
Rank: #21648 (-31)
20M → 21M
10:28 | 10:28/mi
35K
3:17:24
21.75 mi
Rank: #21566 (+82)
21M → 35K
6:39 | 8:54/mi
23M
3:29:29
23.00 mi
Rank: #21553 (+13)
35K → 23M
12:05 | 9:40/mi
24M
3:38:58
24.00 mi
Rank: #21569 (-16)
23M → 24M
9:29 | 9:29/mi
40K
3:47:13
24.85 mi
Rank: #21567 (+2)
24M → 40K
8:15 | 9:39/mi
25.2M
3:50:48
25.20 mi
Rank: #21561 (+6)
40K → 25.2M
3:35 | 10:24/mi
FINISH
4:00:11
26.22 mi
Rank: #21588 (-27)
25.2M → FINISH
9:23 | 9:13/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:53:04
Pace8:38 /mi
2nd Half
Distance13.11 mi
Time2:07:07
Pace9:42 /mi
📊Positive Split: 12.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:30:3126:418:3626:41
8:36
-
10K
6.21 mi11:56:4952:598:3226:18
8:28
-0:08
15K
9.32 mi12:23:371:19:478:3426:48
8:38
+0:10
20K
12.43 mi12:51:001:47:108:3827:23
8:49
+0:11
HALF
13.11 mi12:56:541:53:048:385:54
8:40
-0:09
25K
15.53 mi13:20:192:16:298:4823:25
9:40
+1:00
30K
18.64 mi13:50:332:46:438:5730:14
9:44
+0:04
20M
20.00 mi14:04:073:00:179:0113:34
10:00
+0:16
21M
21.00 mi14:14:353:10:459:0610:28
10:28
+0:28
35K
21.75 mi14:21:143:17:249:056:39
8:54
-1:34
23M
23.00 mi14:33:193:29:299:0712:05
9:40
+0:46
24M
24.00 mi14:42:483:38:589:089:29
9:29
-0:11
40K
24.85 mi14:51:033:47:139:098:15
9:39
+0:10
25.2M
25.20 mi14:54:383:50:489:103:35
10:24
+0:45
FINISH
26.22 mi15:04:014:00:119:119:23
9:13
-1:11

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

8:28 /mi

Average Pace

9:10 /mi

Slowest Pace

10:28 /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

1:59:43

50% of race

Time at Steady Pace

1:32:51

39% of race

Time at Slower Pace

27:37

11% of race

Average Pace: 9:10 /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 mi11:30:3126:418:3626:41
8:36
#20571
10K
6.21 mi11:56:4952:598:3226:18
8:28
#20326
15K
9.32 mi12:23:371:19:478:3426:48
8:38
#20488
20K
12.43 mi12:51:001:47:108:3827:23
8:49
#20639
HALF
13.11 mi12:56:541:53:048:385:54
8:40
#20655
25K
15.53 mi13:20:192:16:298:4823:25
9:40
#21256
30K
18.64 mi13:50:332:46:438:5730:14
9:44
#21514
20M
20.00 mi14:04:073:00:179:0113:34
10:00
#21617
21M
21.00 mi14:14:353:10:459:0610:28
10:28
#21648
35K
21.75 mi14:21:143:17:249:056:39
8:54
#21566
23M
23.00 mi14:33:193:29:299:0712:05
9:40
#21553
24M
24.00 mi14:42:483:38:589:089:29
9:29
#21569
40K
24.85 mi14:51:033:47:139:098:15
9:39
#21567
25.2M
25.20 mi14:54:383:50:489:103:35
10:24
#21561
FINISH
26.22 mi15:04:014:00:119:119:23
9:13
#21588
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 mi205717948794820819(Top 72%)8017(Top 64%)8017(Top 843%)
10K6.21 mi3.10 mi20326+2457788+1607788+16020174(Top 70%)7692(Top 61%)7692(Top 809%)
15K9.32 mi3.11 mi20488-1627864-767864-7620819(Top 72%)8017(Top 64%)8017(Top 843%)
20K12.43 mi3.11 mi20639-1517967-1037967-10321054(Top 73%)8165(Top 65%)8165(Top 859%)
HALF13.11 mi0.68 mi20655-167968-17968-121153(Top 73%)8204(Top 65%)8204(Top 863%)
25K15.53 mi2.42 mi21256-6018294-3268294-32623442(Top 81%)9443(Top 75%)9443(Top 993%)
30K18.64 mi3.11 mi21514-2588432-1388432-13822370(Top 77%)8958(Top 71%)8958(Top 942%)
20M20.00 mi1.36 mi21617-1038507-758507-7522546(Top 78%)9130(Top 73%)9130(Top 960%)
21M21.00 mi1.00 mi21648-318535-288535-2821889(Top 75%)8839(Top 70%)8839(Top 929%)
35K21.75 mi0.75 mi21566+828495+408495+4019611(Top 68%)7769(Top 62%)7769(Top 817%)
23M23.00 mi1.25 mi21553+138500-58500-521114(Top 73%)8529(Top 68%)8529(Top 897%)
24M24.00 mi1.00 mi21569-168514-148514-1421297(Top 73%)8693(Top 69%)8693(Top 914%)
40K24.85 mi0.85 mi21567+28531-178531-1720914(Top 72%)8533(Top 68%)8533(Top 897%)
25.2M25.20 mi0.35 mi21561+68531853120777(Top 72%)8455(Top 67%)8455(Top 889%)
FINISH26.22 mi1.02 mi21588-278555-248555-2421347(Top 74%)8747(Top 70%)8747(Top 920%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 72%
×21
+97ft-345ft

Overall

20819

Females

8017

F55-59

8017

5K→10K

3.1 - 6.2 mi

Top 70%
×5
+79ft-138ft

Overall

20174

Females

7692

F55-59

7692

10K→15K

6.2 - 9.3 mi

Top 72%
×3
+67ft-78ft

Overall

20819

Females

8017

F55-59

8017

15K→20K

9.3 - 12.4 mi

Top 73%
×5
+106ft-86ft

Overall

21054

Females

8165

F55-59

8165

20K→HALF

12.4 - 13.1 mi

Top 73%
×2
+19ft-37ft

Overall

21153

Females

8204

F55-59

8204

HALF→25K

13.1 - 15.5 mi

Top 81%
×4
+66ft-88ft

Overall

23442

Females

9443

F55-59

9443

25K→30K

15.5 - 18.6 mi

Top 77%
×9
+181ft-148ft

Overall

22370

Females

8958

F55-59

8958

30K→20M

18.6 - 20.0 mi

Top 78%
×5
+64ft-50ft

Overall

22546

Females

9130

F55-59

9130

20M→21M

20.0 - 21.0 mi

Top 75%
×8
+106ft-24ft

Overall

21889

Females

8839

F55-59

8839

21M→35K

21.0 - 21.8 mi

Top 68%
×7
+17ft-86ft

Overall

19611

Females

7769

F55-59

7769

35K→23M

21.8 - 23.0 mi

Top 73%
×5
+23ft-63ft

Overall

21114

Females

8529

F55-59

8529

23M→24M

23.0 - 24.0 mi

Top 73%
×6
+12ft-82ft

Overall

21297

Females

8693

F55-59

8693

24M→40K

24.0 - 24.9 mi

Top 72%
×1
+6ft-20ft

Overall

20914

Females

8533

F55-59

8533

40K→25.2M

24.9 - 25.2 mi

Top 72%
×1
+13ft-16ft

Overall

20777

Females

8455

F55-59

8455

25.2M→FINISH

25.2 - 26.2 mi

Top 74%
×2
+22ft-21ft

Overall

21347

Females

8747

F55-59

8747

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1272*
Passed By
1552
Net Change
-1017
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20571
5K → 10K414*169+245#20571#20326
10K → 15K133200-162#20326#20488
15K → 20K120200-151#20488#20639
20K → HALF2541-16#20639#20655
HALF → 25K27200-601#20655#21256
25K → 30K85200-258#21256#21514
30K → 20M67170-103#21514#21617
20M → 21M72103-31#21617#21648
21M → 35K9210+82#21648#21566
35K → 23M7663+13#21566#21553
23M → 24M3955-16#21553#21569
24M → 40K6058+2#21569#21567
40K → 25.2M2014+6#21567#21561
25.2M → FINISH4269-27#21561#21588
TOTALS1272*1552-1017

* 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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