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BOSTON MARATHON 2026

Ana Castro

Bib: 33039•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Gender (Female)
#0 / 12578
Masters (Masters Women)
#0 / 6862
Division (F40-44)
#0 / 1737
Race Day Weather
51°/41°F
overcast clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
8:45/mi
27:08
↑ 97↓ 3451.5%
10K· 6.21 mi
8:32/mi
53:38
↑ 79↓ 1380.4%
15K· 9.32 mi
8:20/mi
1:19:31
↑ 67↓ 78
20K· 12.43 mi
8:36/mi
1:46:14
↑ 106↓ 860.1%
HALF· 13.11 mi
8:35/mi
1:52:05
↑ 19↓ 370.5%
25K· 15.53 mi
8:58/mi
2:13:48
↑ 66↓ 880.2%
30K· 18.64 mi
9:09/mi
2:42:13
↑ 181↓ 1480.2%
20M
9:18/mi
2:54:50
↑ 64↓ 500.2%
21M
9:39/mi
3:04:29
↑ 106↓ 241.6%
35K· 21.75 mi
8:57/mi
3:11:10
↑ 17↓ 861.7%
23M
9:07/mi
3:22:34
↑ 23↓ 630.6%
24M
8:52/mi
3:31:26
↓ 821.3%
40K· 24.85 mi
9:01/mi
3:39:08
↓ 200.3%
25.2M
9:32/mi
3:42:25
↑ 13↓ 160.2%
FINISH· 26.22 mi
8:39/mi
3:51:13
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HALFFaster
Distance13.11 mi
Time1:52:05
Pace8:34 /mi
2nd Half
Distance13.11 mi
Time1:59:08
Pace9:06 /mi
📊Positive Split: 6.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:58:0327:088:4527:08
8:45
-
10K
6.21 mi12:24:3353:388:3826:30
8:32
-0:13
15K
9.32 mi12:50:261:19:318:3225:53
8:20
-0:12
20K
12.43 mi13:17:091:46:148:3326:43
8:36
+0:16
HALF
13.11 mi13:23:001:52:058:345:51
8:35
-0:01
25K
15.53 mi13:44:432:13:488:3721:43
8:58
+0:23
30K
18.64 mi14:13:082:42:138:4328:25
9:09
+0:11
20M
20.00 mi14:25:452:54:508:4512:37
9:18
+0:09
21M
21.00 mi14:35:243:04:298:489:39
9:39
+0:21
35K
21.75 mi14:42:053:11:108:486:41
8:57
-0:42
23M
23.00 mi14:53:293:22:348:4911:24
9:07
+0:10
24M
24.00 mi15:02:213:31:268:498:52
8:52
-0:15
40K
24.85 mi15:10:033:39:088:497:42
9:01
+0:09
25.2M
25.20 mi15:13:203:42:258:503:17
9:32
+0:31
FINISH
26.22 mi15:22:083:51:138:508:48
8:39
-0:53

Checkpoints & Pacing

📈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

8:20 /mi

Average Pace

8:50 /mi

Slowest Pace

9:39 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:25:40

89% of race

Time at Steady Pace

25:33

11% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:49 /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

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:58:0327:088:4527:08
8:45
#21377
10K
6.21 mi12:24:3353:388:3826:30
8:32
#20941
15K
9.32 mi12:50:261:19:318:3225:53
8:20
#20309
20K
12.43 mi13:17:091:46:148:3326:43
8:36
#20181
HALF
13.11 mi13:23:001:52:058:345:51
8:35
#20200
25K
15.53 mi13:44:432:13:488:3721:43
8:58
#20351
30K
18.64 mi14:13:082:42:138:4328:25
9:09
#20348
20M
20.00 mi14:25:452:54:508:4512:37
9:18
#20332
21M
21.00 mi14:35:243:04:298:489:39
9:39
#20264
35K
21.75 mi14:42:053:11:108:486:41
8:57
#20264
23M
23.00 mi14:53:293:22:348:4911:24
9:07
#20184
24M
24.00 mi15:02:213:31:268:498:52
8:52
#20115
40K
24.85 mi15:10:033:39:088:497:42
9:01
#20052
25.2M
25.20 mi15:13:203:42:258:503:17
9:32
#20013
FINISH
26.22 mi15:22:083:51:138:508:48
8:39
#19970
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi213778377837719175(Top 66%)7139(Top 57%)7139(Top 411%)
10K6.21 mi3.10 mi20941+4368116+2618116+26120511(Top 71%)7863(Top 63%)7863(Top 453%)
15K9.32 mi3.11 mi20309+6327766+3507766+35019175(Top 66%)7139(Top 57%)7139(Top 411%)
20K12.43 mi3.11 mi20181+1287726+407726+4019884(Top 69%)7561(Top 60%)7561(Top 435%)
HALF13.11 mi0.68 mi20200-197738-127738-1220753(Top 72%)7986(Top 63%)7986(Top 460%)
25K15.53 mi2.42 mi20351-1517816-787816-7820986(Top 72%)8161(Top 65%)8161(Top 470%)
30K18.64 mi3.11 mi20348+37838-227838-2220281(Top 70%)7879(Top 63%)7879(Top 454%)
20M20.00 mi1.36 mi20332+167839-17839-120260(Top 70%)7950(Top 63%)7950(Top 458%)
21M21.00 mi1.00 mi20264+687822+177822+1719198(Top 66%)7426(Top 59%)7426(Top 428%)
35K21.75 mi0.75 mi202647830-87830-819785(Top 68%)7847(Top 62%)7847(Top 452%)
23M23.00 mi1.25 mi20184+807804+267804+2619032(Top 66%)7488(Top 60%)7488(Top 431%)
24M24.00 mi1.00 mi20115+697785+197785+1918892(Top 65%)7471(Top 59%)7471(Top 430%)
40K24.85 mi0.85 mi20052+637774+117774+1118470(Top 64%)7303(Top 58%)7303(Top 420%)
25.2M25.20 mi0.35 mi20013+397763+117763+1117499(Top 60%)6787(Top 54%)6787(Top 391%)
FINISH26.22 mi1.02 mi19970+437753+107753+1018863(Top 65%)7495(Top 60%)7495(Top 431%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 66%
×21story building
+97ft-345ft

Overall

19175

Females

7139

F40-44

7139

5K→10K

3.1 - 6.2 mi

Top 71%
×5story building
+79ft-138ft

Overall

20511

Females

7863

F40-44

7863

10K→15K

6.2 - 9.3 mi

Top 66%
×3story building
+67ft-78ft

Overall

19175

Females

7139

F40-44

7139

15K→20K

9.3 - 12.4 mi

Top 69%
×5story building
+106ft-86ft

Overall

19884

Females

7561

F40-44

7561

20K→HALF

12.4 - 13.1 mi

Top 72%
×2story building
+19ft-37ft

Overall

20753

Females

7986

F40-44

7986

HALF→25K

13.1 - 15.5 mi

Top 72%
×4story building
+66ft-88ft

Overall

20986

Females

8161

F40-44

8161

25K→30K

15.5 - 18.6 mi

Top 70%
×9story building
+181ft-148ft

Overall

20281

Females

7879

F40-44

7879

30K→20M

18.6 - 20.0 mi

Top 70%
×5story building
+64ft-50ft

Overall

20260

Females

7950

F40-44

7950

20M→21M

20.0 - 21.0 mi

Top 66%
×8story building
+106ft-24ft

Overall

19198

Females

7426

F40-44

7426

21M→35K

21.0 - 21.8 mi

Top 68%
×7story building
+17ft-86ft

Overall

19785

Females

7847

F40-44

7847

35K→23M

21.8 - 23.0 mi

Top 66%
×5story building
+23ft-63ft

Overall

19032

Females

7488

F40-44

7488

23M→24M

23.0 - 24.0 mi

Top 65%
×6story building
+12ft-82ft

Overall

18892

Females

7471

F40-44

7471

24M→40K

24.0 - 24.9 mi

Top 64%
×1story
+6ft-20ft

Overall

18470

Females

7303

F40-44

7303

40K→25.2M

24.9 - 25.2 mi

Top 60%
×1story
+13ft-16ft

Overall

17499

Females

6787

F40-44

6787

25.2M→FINISH

25.2 - 26.2 mi

Top 65%
×2story building
+22ft-21ft

Overall

18863

Females

7495

F40-44

7495

Passing Analysis

Category:
Athletes Passed
2405
Passed By
998
Net Change
+1407
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21377
5K → 10K574138+436#21377#20941
10K → 15K66230+632#20941#20309
15K → 20K22294+128#20309#20181
20K → HALF2039-19#20181#20200
HALF → 25K77228-151#20200#20351
25K → 30K189186+3#20351#20348
30K → 20M9579+16#20348#20332
20M → 21M10840+68#20332#20264
21M → 35K45450#20264#20264
35K → 23M11535+80#20264#20184
23M → 24M9122+69#20184#20115
24M → 40K8623+63#20115#20052
40K → 25.2M489+39#20052#20013
25.2M → FINISH7330+43#20013#19970
TOTALS2405998+1407
📊

Passing Visuals

Category:
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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing