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BOSTON MARATHON 2026

Caitlin Castagna

Bib: 19888•F

MA

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0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Gender (Female)
#0 / 12578
Top 45%
Masters (Masters Women)
#0 / 6862
Top 31%
Age Group (F40-44)
#0 / 1737
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
25:45
3.11 mi
Rank: #18796
Start → 5K
25:45 | 8:18/mi
10K
51:17
6.21 mi
Rank: #18729 (+67)
5K → 10K
25:32 | 8:14/mi
15K
1:16:47
9.32 mi
Rank: #18619 (+110)
10K → 15K
25:30 | 8:13/mi
20K
1:41:53
12.43 mi
Rank: #18157 (+462)
15K → 20K
25:06 | 8:05/mi
HALF
1:47:15
13.11 mi
Rank: #18056 (+101)
20K → HALF
5:22 | 7:53/mi
25K
2:07:32
15.53 mi
Rank: #18009 (+47)
HALF → 25K
20:17 | 8:22/mi
30K
2:32:45
18.64 mi
Rank: #17348 (+661)
25K → 30K
25:13 | 8:07/mi
20M
2:44:06
20.00 mi
Rank: #17171 (+177)
30K → 20M
11:21 | 8:22/mi
21M
2:52:59
21.00 mi
Rank: #17049 (+122)
20M → 21M
8:53 | 8:53/mi
35K
2:59:02
21.75 mi
Rank: #16955 (+94)
21M → 35K
6:03 | 8:06/mi
23M
3:09:21
23.00 mi
Rank: #16774 (+181)
35K → 23M
10:19 | 8:15/mi
24M
3:17:20
24.00 mi
Rank: #16609 (+165)
23M → 24M
7:59 | 7:59/mi
40K
3:24:15
24.85 mi
Rank: #16457 (+152)
24M → 40K
6:55 | 8:06/mi
25.2M
3:27:15
25.20 mi
Rank: #16388 (+69)
40K → 25.2M
3:00 | 8:42/mi
FINISH
3:34:58
26.22 mi
Rank: #16218 (+170)
25.2M → FINISH
7:43 | 7:35/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st Half⚖️ Balanced
via HALF
Distance13.11 mi
Time1:47:15
Pace8:11 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:47:43
Pace8:13 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:10:0325:458:1825:45
8:18
-
10K
6.21 mi11:35:3551:178:1625:32
8:14
-0:04
15K
9.32 mi12:01:051:16:478:1525:30
8:13
-0:01
20K
12.43 mi12:26:111:41:538:1225:06
8:05
-0:08
HALF
13.11 mi12:31:331:47:158:115:22
7:53
-0:12
25K
15.53 mi12:51:502:07:328:1320:17
8:22
+0:29
30K
18.64 mi13:17:032:32:458:1225:13
8:07
-0:15
20M
20.00 mi13:28:242:44:068:1311:21
8:22
+0:15
21M
21.00 mi13:37:172:52:598:158:53
8:53
+0:31
35K
21.75 mi13:43:202:59:028:146:03
8:06
-0:47
23M
23.00 mi13:53:393:09:218:1410:19
8:15
+0:09
24M
24.00 mi14:01:383:17:208:147:59
7:59
-0:16
40K
24.85 mi14:08:333:24:158:146:55
8:06
+0:07
25.2M
25.20 mi14:11:333:27:158:143:00
8:42
+0:36
FINISH
26.22 mi14:19:163:34:588:137:43
7:35
-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

7:35 /mi

Average Pace

8:12 /mi

Slowest Pace

8:53 /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

2:51:27

80% of race

Time at Steady Pace

43:31

20% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:12 /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 mi11:10:0325:458:1825:45
8:18
#18796
10K
6.21 mi11:35:3551:178:1625:32
8:14
#18729
15K
9.32 mi12:01:051:16:478:1525:30
8:13
#18619
20K
12.43 mi12:26:111:41:538:1225:06
8:05
#18157
HALF
13.11 mi12:31:331:47:158:115:22
7:53
#18056
25K
15.53 mi12:51:502:07:328:1320:17
8:22
#18009
30K
18.64 mi13:17:032:32:458:1225:13
8:07
#17348
20M
20.00 mi13:28:242:44:068:1311:21
8:22
#17171
21M
21.00 mi13:37:172:52:598:158:53
8:53
#17049
35K
21.75 mi13:43:202:59:028:146:03
8:06
#16955
23M
23.00 mi13:53:393:09:218:1410:19
8:15
#16774
24M
24.00 mi14:01:383:17:208:147:59
7:59
#16609
40K
24.85 mi14:08:333:24:158:146:55
8:06
#16457
25.2M
25.20 mi14:11:333:27:158:143:00
8:42
#16388
FINISH
26.22 mi14:19:163:34:588:137:43
7:35
#16218
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi187966969696918383(Top 63%)6686(Top 53%)6686(Top 385%)
10K6.21 mi3.10 mi18729+676907+626907+6218677(Top 64%)6835(Top 54%)6835(Top 393%)
15K9.32 mi3.11 mi18619+1106828+796828+7918383(Top 63%)6686(Top 53%)6686(Top 385%)
20K12.43 mi3.11 mi18157+4626573+2556573+25516719(Top 58%)5775(Top 46%)5775(Top 332%)
HALF13.11 mi0.68 mi18056+1016521+526521+5216205(Top 56%)5459(Top 43%)5459(Top 314%)
25K15.53 mi2.42 mi18009+476503+186503+1817772(Top 61%)6427(Top 51%)6427(Top 370%)
30K18.64 mi3.11 mi17348+6616161+3426161+34214341(Top 49%)4604(Top 37%)4604(Top 265%)
20M20.00 mi1.36 mi17171+1776068+936068+9315290(Top 53%)5244(Top 42%)5244(Top 302%)
21M21.00 mi1.00 mi17049+1226018+506018+5015501(Top 53%)5417(Top 43%)5417(Top 312%)
35K21.75 mi0.75 mi16955+945991+275991+2715115(Top 52%)5254(Top 42%)5254(Top 302%)
23M23.00 mi1.25 mi16774+1815910+815910+8114115(Top 49%)4773(Top 38%)4773(Top 275%)
24M24.00 mi1.00 mi16609+1655836+745836+7413703(Top 47%)4633(Top 37%)4633(Top 267%)
40K24.85 mi0.85 mi16457+1525779+575779+5713133(Top 45%)4411(Top 35%)4411(Top 254%)
25.2M25.20 mi0.35 mi16388+695751+285751+2813007(Top 45%)4395(Top 35%)4395(Top 253%)
FINISH26.22 mi1.02 mi16218+1705666+855666+8512043(Top 41%)3892(Top 31%)3892(Top 224%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 63%
×21
+97ft-345ft

Overall

18383

Females

6686

F40-44

6686

5K→10K

3.1 - 6.2 mi

Top 64%
×5
+79ft-138ft

Overall

18677

Females

6835

F40-44

6835

10K→15K

6.2 - 9.3 mi

Top 63%
×3
+67ft-78ft

Overall

18383

Females

6686

F40-44

6686

15K→20K

9.3 - 12.4 mi

Top 58%
×5
+106ft-86ft

Overall

16719

Females

5775

F40-44

5775

20K→HALF

12.4 - 13.1 mi

Top 56%
×2
+19ft-37ft

Overall

16205

Females

5459

F40-44

5459

HALF→25K

13.1 - 15.5 mi

Top 61%
×4
+66ft-88ft

Overall

17772

Females

6427

F40-44

6427

25K→30K

15.5 - 18.6 mi

Top 49%
×9
+181ft-148ft

Overall

14341

Females

4604

F40-44

4604

30K→20M

18.6 - 20.0 mi

Top 53%
×5
+64ft-50ft

Overall

15290

Females

5244

F40-44

5244

20M→21M

20.0 - 21.0 mi

Top 53%
×8
+106ft-24ft

Overall

15501

Females

5417

F40-44

5417

21M→35K

21.0 - 21.8 mi

Top 52%
×7
+17ft-86ft

Overall

15115

Females

5254

F40-44

5254

35K→23M

21.8 - 23.0 mi

Top 49%
×5
+23ft-63ft

Overall

14115

Females

4773

F40-44

4773

23M→24M

23.0 - 24.0 mi

Top 47%
×6
+12ft-82ft

Overall

13703

Females

4633

F40-44

4633

24M→40K

24.0 - 24.9 mi

Top 45%
×1
+6ft-20ft

Overall

13133

Females

4411

F40-44

4411

40K→25.2M

24.9 - 25.2 mi

Top 45%
×1
+13ft-16ft

Overall

13007

Females

4395

F40-44

4395

25.2M→FINISH

25.2 - 26.2 mi

Top 41%
×2
+22ft-21ft

Overall

12043

Females

3892

F40-44

3892

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
3161
Passed By
583
Net Change
+2578
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18796
5K → 10K310243+67#18796#18729
10K → 15K227117+110#18729#18619
15K → 20K47917+462#18619#18157
20K → HALF1021+101#18157#18056
HALF → 25K14598+47#18056#18009
25K → 30K6665+661#18009#17348
30K → 20M19215+177#17348#17171
20M → 21M15533+122#17171#17049
21M → 35K1006+94#17049#16955
35K → 23M20423+181#16955#16774
23M → 24M1694+165#16774#16609
24M → 40K1619+152#16609#16457
40K → 25.2M734+69#16457#16388
25.2M → FINISH1788+170#16388#16218
TOTALS3161583+2578
📊

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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Export & Support

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing