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BOSTON MARATHON 2026

Blanca Luz Castañeda

Bib: 25667•F

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0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Gender (Female)
#0 / 12578
Masters (Masters Women)
#0 / 6862
Age Group (F65-69)
#0 / 273
Top 32%
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
25:55
3.11 mi
Rank: #19161
Start → 5K
25:55 | 8:21/mi
10K
52:09
6.21 mi
Rank: #19592 (-431)
5K → 10K
26:14 | 8:27/mi
15K
1:19:24
9.32 mi
Rank: #20241 (-649)
10K → 15K
27:15 | 8:47/mi
20K
1:48:37
12.43 mi
Rank: #21251 (-1010)
15K → 20K
29:13 | 9:25/mi
HALF
1:55:01
13.11 mi
Rank: #21430 (-179)
20K → HALF
6:24 | 9:24/mi
25K
2:20:31
15.53 mi
Rank: #22468 (-1038)
HALF → 25K
25:30 | 10:31/mi
30K
2:54:18
18.64 mi
Rank: #23173 (-705)
25K → 30K
33:47 | 10:53/mi
20M
3:09:35
20.00 mi
Rank: #23359 (-186)
30K → 20M
15:17 | 11:16/mi
21M
3:21:14
21.00 mi
Rank: #23436 (-77)
20M → 21M
11:39 | 11:39/mi
35K
3:28:19
21.75 mi
Rank: #23340 (+96)
21M → 35K
7:05 | 9:29/mi
23M
3:41:47
23.00 mi
Rank: #23380 (-40)
35K → 23M
13:28 | 10:46/mi
24M
3:51:44
24.00 mi
Rank: #23342 (+38)
23M → 24M
9:57 | 9:57/mi
40K
4:00:56
24.85 mi
Rank: #23351 (-9)
24M → 40K
9:12 | 10:46/mi
25.2M
4:04:58
25.20 mi
Rank: #23350 (+1)
40K → 25.2M
4:02 | 11:42/mi
FINISH
4:15:45
26.22 mi
Rank: #23408 (-58)
25.2M → FINISH
10:47 | 10:35/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:55:01
Pace8:47 /mi
2nd Half
Distance13.11 mi
Time2:20:44
Pace10:45 /mi
📊Positive Split: 22.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:31:2825:558:2125:55
8:21
-
10K
6.21 mi11:57:4252:098:2426:14
8:27
+0:06
15K
9.32 mi12:24:571:19:248:3227:15
8:47
+0:20
20K
12.43 mi12:54:101:48:378:4529:13
9:25
+0:38
HALF
13.11 mi13:00:341:55:018:476:24
9:24
-0:01
25K
15.53 mi13:26:042:20:319:0325:30
10:31
+1:07
30K
18.64 mi13:59:512:54:189:2233:47
10:53
+0:22
20M
20.00 mi14:15:083:09:359:2915:17
11:16
+0:23
21M
21.00 mi14:26:473:21:149:3511:39
11:39
+0:23
35K
21.75 mi14:33:523:28:199:357:05
9:29
-2:10
23M
23.00 mi14:47:203:41:479:3913:28
10:46
+1:17
24M
24.00 mi14:57:173:51:449:409:57
9:57
-0:49
40K
24.85 mi15:06:294:00:569:429:12
10:46
+0:49
25.2M
25.20 mi15:10:314:04:589:444:02
11:42
+0:56
FINISH
26.22 mi15:21:184:15:459:4610:47
10:35
-1:07

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

8:21 /mi

Average Pace

9:46 /mi

Slowest Pace

11:42 /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

2:12:03

52% of race

Time at Steady Pace

1:32:44

36% of race

Time at Slower Pace

30:58

12% of race

Average Pace: 9:45 /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 mi11:31:2825:558:2125:55
8:21
#19161
10K
6.21 mi11:57:4252:098:2426:14
8:27
#19592
15K
9.32 mi12:24:571:19:248:3227:15
8:47
#20241
20K
12.43 mi12:54:101:48:378:4529:13
9:25
#21251
HALF
13.11 mi13:00:341:55:018:476:24
9:24
#21430
25K
15.53 mi13:26:042:20:319:0325:30
10:31
#22468
30K
18.64 mi13:59:512:54:189:2233:47
10:53
#23173
20M
20.00 mi14:15:083:09:359:2915:17
11:16
#23359
21M
21.00 mi14:26:473:21:149:3511:39
11:39
#23436
35K
21.75 mi14:33:523:28:199:357:05
9:29
#23340
23M
23.00 mi14:47:203:41:479:3913:28
10:46
#23380
24M
24.00 mi14:57:173:51:449:409:57
9:57
#23342
40K
24.85 mi15:06:294:00:569:429:12
10:46
#23351
25.2M
25.20 mi15:10:314:04:589:444:02
11:42
#23350
FINISH
26.22 mi15:21:184:15:459:4610:47
10:35
#23408
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF65-69Seg. OverallSeg. FemalesSeg. F65-69
5K3.11 mi3.11 mi191617180718021601(Top 74%)8433(Top 67%)8433(Top 3089%)
10K6.21 mi3.10 mi19592-4317401-2217401-22120053(Top 69%)7630(Top 61%)7630(Top 2795%)
15K9.32 mi3.11 mi20241-6497737-3367737-33621601(Top 74%)8433(Top 67%)8433(Top 3089%)
20K12.43 mi3.11 mi21251-10108294-5578294-55723452(Top 81%)9420(Top 75%)9420(Top 3451%)
HALF13.11 mi0.68 mi21430-1798380-868380-8624082(Top 83%)9728(Top 77%)9728(Top 3563%)
25K15.53 mi2.42 mi22468-10388892-5128892-51225478(Top 88%)10500(Top 83%)10500(Top 3846%)
30K18.64 mi3.11 mi23173-7059311-4199311-41925097(Top 86%)10419(Top 83%)10419(Top 3816%)
20M20.00 mi1.36 mi23359-1869410-999410-9925351(Top 87%)10628(Top 84%)10628(Top 3893%)
21M21.00 mi1.00 mi23436-779455-459455-4524471(Top 84%)10229(Top 81%)10229(Top 3747%)
35K21.75 mi0.75 mi23340+969418+379418+3721698(Top 75%)8807(Top 70%)8807(Top 3226%)
23M23.00 mi1.25 mi23380-409445-279445-2723972(Top 83%)10040(Top 80%)10040(Top 3678%)
24M24.00 mi1.00 mi23342+389435+109435+1022670(Top 78%)9375(Top 75%)9375(Top 3434%)
40K24.85 mi0.85 mi23351-99457-229457-2223783(Top 82%)10019(Top 80%)10019(Top 3670%)
25.2M25.20 mi0.35 mi23350+19459-29459-223904(Top 82%)10087(Top 80%)10087(Top 3695%)
FINISH26.22 mi1.02 mi23408-589499-409499-4025253(Top 87%)10761(Top 86%)10761(Top 3942%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 74%
×21
+97ft-345ft

Overall

21601

Females

8433

F65-69

8433

5K→10K

3.1 - 6.2 mi

Top 69%
×5
+79ft-138ft

Overall

20053

Females

7630

F65-69

7630

10K→15K

6.2 - 9.3 mi

Top 74%
×3
+67ft-78ft

Overall

21601

Females

8433

F65-69

8433

15K→20K

9.3 - 12.4 mi

Top 81%
×5
+106ft-86ft

Overall

23452

Females

9420

F65-69

9420

20K→HALF

12.4 - 13.1 mi

Top 83%
×2
+19ft-37ft

Overall

24082

Females

9728

F65-69

9728

HALF→25K

13.1 - 15.5 mi

Top 88%
×4
+66ft-88ft

Overall

25478

Females

10500

F65-69

10500

25K→30K

15.5 - 18.6 mi

Top 86%
×9
+181ft-148ft

Overall

25097

Females

10419

F65-69

10419

30K→20M

18.6 - 20.0 mi

Top 87%
×5
+64ft-50ft

Overall

25351

Females

10628

F65-69

10628

20M→21M

20.0 - 21.0 mi

Top 84%
×8
+106ft-24ft

Overall

24471

Females

10229

F65-69

10229

21M→35K

21.0 - 21.8 mi

Top 75%
×7
+17ft-86ft

Overall

21698

Females

8807

F65-69

8807

35K→23M

21.8 - 23.0 mi

Top 83%
×5
+23ft-63ft

Overall

23972

Females

10040

F65-69

10040

23M→24M

23.0 - 24.0 mi

Top 78%
×6
+12ft-82ft

Overall

22670

Females

9375

F65-69

9375

24M→40K

24.0 - 24.9 mi

Top 82%
×1
+6ft-20ft

Overall

23783

Females

10019

F65-69

10019

40K→25.2M

24.9 - 25.2 mi

Top 82%
×1
+13ft-16ft

Overall

23904

Females

10087

F65-69

10087

25.2M→FINISH

25.2 - 26.2 mi

Top 87%
×2
+22ft-21ft

Overall

25253

Females

10761

F65-69

10761

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
613
Passed By
1795
Net Change
-4247
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19161
5K → 10K110200-431#19161#19592
10K → 15K35200-649#19592#20241
15K → 20K23200-1010#20241#21251
20K → HALF12191-179#21251#21430
HALF → 25K7200-1038#21430#22468
25K → 30K42200-705#22468#23173
30K → 20M29200-186#23173#23359
20M → 21M40117-77#23359#23436
21M → 35K1059+96#23436#23340
35K → 23M5191-40#23340#23380
23M → 24M6931+38#23380#23342
24M → 40K4554-9#23342#23351
40K → 25.2M2322+1#23351#23350
25.2M → FINISH2280-58#23350#23408
TOTALS6131795-4247
📊

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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Activity Data

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing