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BOSTON MARATHON 2026

Margaret Calzaretta

Bib: 27374β€’F

MA

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Overall
#0 / 29021
Gender (Female)
#0 / 12578
Age Group (F18-39)
#0 / 5716
Race Day Weather
51Β°/41Β°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
28:59
3.11 mi
Rank: #23909
Start β†’ 5K
28:59 | 9:20/mi
10K
57:44
6.21 mi
Rank: #23871 (+38)
5K β†’ 10K
28:45 | 9:16/mi
15K
1:26:35
9.32 mi
Rank: #23878 (-7)
10K β†’ 15K
28:51 | 9:18/mi
20K
1:55:22
12.43 mi
Rank: #23654 (+224)
15K β†’ 20K
28:47 | 9:16/mi
HALF
2:01:37
13.11 mi
Rank: #23635 (+19)
20K β†’ HALF
6:15 | 9:11/mi
25K
2:24:26
15.53 mi
Rank: #23459 (+176)
HALF β†’ 25K
22:49 | 9:25/mi
30K
2:54:10
18.64 mi
Rank: #23145 (+314)
25K β†’ 30K
29:44 | 9:35/mi
20M
3:07:27
20.00 mi
Rank: #23032 (+113)
30K β†’ 20M
13:17 | 9:47/mi
21M
3:17:33
21.00 mi
Rank: #22864 (+168)
20M β†’ 21M
10:06 | 10:06/mi
35K
3:25:01
21.75 mi
Rank: #22882 (-18)
21M β†’ 35K
7:28 | 9:59/mi
23M
3:39:02
23.00 mi
Rank: #23029 (-147)
35K β†’ 23M
14:01 | 11:13/mi
24M
3:52:37
24.00 mi
Rank: #23457 (-428)
23M β†’ 24M
13:35 | 13:35/mi
40K
4:01:11
24.85 mi
Rank: #23374 (+83)
24M β†’ 40K
8:34 | 10:02/mi
25.2M
4:04:58
25.20 mi
Rank: #23349 (+25)
40K β†’ 25.2M
3:47 | 10:59/mi
FINISH
4:14:17
26.22 mi
Rank: #23246 (+103)
25.2M β†’ FINISH
9:19 | 9:09/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time2:01:37
Pace9:17 /mi
2nd Half
Distance13.11 mi
Time2:12:40
Pace10:08 /mi
πŸ“ŠPositive Split: 9.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:50:1928:599:2028:59
9:20
-
10K
6.21 mi12:19:0457:449:1828:45
9:16
-0:04
15K
9.32 mi12:47:551:26:359:1828:51
9:18
+0:02
20K
12.43 mi13:16:421:55:229:1728:47
9:16
-0:02
HALF
13.11 mi13:22:572:01:379:176:15
9:11
-0:05
25K
15.53 mi13:45:462:24:269:1822:49
9:25
+0:14
30K
18.64 mi14:15:302:54:109:2129:44
9:35
+0:10
20M
20.00 mi14:28:473:07:279:2313:17
9:47
+0:12
21M
21.00 mi14:38:533:17:339:2510:06
10:06
+0:19
35K
21.75 mi14:46:213:25:019:267:28
9:59
-0:07
23M
23.00 mi15:00:223:39:029:3214:01
11:13
+1:14
24M
24.00 mi15:13:573:52:379:4213:35
13:35
+2:22
40K
24.85 mi15:22:314:01:119:438:34
10:02
-3:33
25.2M
25.20 mi15:26:184:04:589:443:47
10:59
+0:57
FINISH
26.22 mi15:35:374:14:179:439:19
9:09
-1:50

Checkpoint Splits Visualizations

Explore your race data through different visual perspectives. Scroll to discover each visualization.

πŸ“ˆPace 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

9:09 /mi

Average Pace

9:42 /mi

Slowest Pace

13:35 /mi

Loading chart...
Fastest
Middle
Slowest
Average

πŸ“ŠSegments

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

0:00

0% of race

Time at Steady Pace

3:42:54

88% of race

Time at Slower Pace

31:23

12% of race

Average Pace: 9:42 /mi

Loading chart...
Faster pace (< avg)
Steady pace (β‰ˆ 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 mi11:50:1928:599:2028:59
9:20
#23909
10K
6.21 mi12:19:0457:449:1828:45
9:16
#23871
15K
9.32 mi12:47:551:26:359:1828:51
9:18
#23878
20K
12.43 mi13:16:421:55:229:1728:47
9:16
#23654
HALF
13.11 mi13:22:572:01:379:176:15
9:11
#23635
25K
15.53 mi13:45:462:24:269:1822:49
9:25
#23459
30K
18.64 mi14:15:302:54:109:2129:44
9:35
#23145
20M
20.00 mi14:28:473:07:279:2313:17
9:47
#23032
21M
21.00 mi14:38:533:17:339:2510:06
10:06
#22864
35K
21.75 mi14:46:213:25:019:267:28
9:59
#22882
23M
23.00 mi15:00:223:39:029:3214:01
11:13
#23029
24M
24.00 mi15:13:573:52:379:4213:35
13:35
#23457
40K
24.85 mi15:22:314:01:119:438:34
10:02
#23374
25.2M
25.20 mi15:26:184:04:589:443:47
10:59
#23349
FINISH
26.22 mi15:35:374:14:179:439:19
9:09
#23246
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 mi239099620962023806(Top 82%)9555(Top 76%)9555(Top 167%)
10K6.21 mi3.10 mi23871+389591+299591+2923814(Top 82%)9563(Top 76%)9563(Top 167%)
15K9.32 mi3.11 mi23878-79595-49595-423806(Top 82%)9555(Top 76%)9555(Top 167%)
20K12.43 mi3.11 mi23654+2249487+1089487+10823017(Top 79%)9184(Top 73%)9184(Top 161%)
HALF13.11 mi0.68 mi23635+199481+69481+623400(Top 81%)9375(Top 75%)9375(Top 164%)
25K15.53 mi2.42 mi23459+1769407+749407+7422756(Top 78%)9072(Top 72%)9072(Top 159%)
30K18.64 mi3.11 mi23145+3149295+1129295+11221872(Top 75%)8707(Top 69%)8707(Top 152%)
20M20.00 mi1.36 mi23032+1139241+549241+5421986(Top 76%)8848(Top 70%)8848(Top 155%)
21M21.00 mi1.00 mi22864+1689166+759166+7520777(Top 72%)8262(Top 66%)8262(Top 145%)
35K21.75 mi0.75 mi22882-189183-179183-1723123(Top 80%)9510(Top 76%)9510(Top 166%)
23M23.00 mi1.25 mi23029-1479278-959278-9524912(Top 86%)10531(Top 84%)10531(Top 184%)
24M24.00 mi1.00 mi23457-4289490-2129490-21228080(Top 97%)12152(Top 97%)12152(Top 213%)
40K24.85 mi0.85 mi23374+839466+249466+2422009(Top 76%)9109(Top 72%)9109(Top 159%)
25.2M25.20 mi0.35 mi23349+259458+89458+822341(Top 77%)9260(Top 74%)9260(Top 162%)
FINISH26.22 mi1.02 mi23246+1039413+459413+4521110(Top 73%)8638(Top 69%)8638(Top 151%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 82%
Γ—21
+97ft-345ft

Overall

23806

Females

9555

F18-39

9555

5K→10K

3.1 - 6.2 mi

Top 82%
Γ—5
+79ft-138ft

Overall

23814

Females

9563

F18-39

9563

10K→15K

6.2 - 9.3 mi

Top 82%
Γ—3
+67ft-78ft

Overall

23806

Females

9555

F18-39

9555

15K→20K

9.3 - 12.4 mi

Top 79%
Γ—5
+106ft-86ft

Overall

23017

Females

9184

F18-39

9184

20K→HALF

12.4 - 13.1 mi

Top 81%
Γ—2
+19ft-37ft

Overall

23400

Females

9375

F18-39

9375

HALF→25K

13.1 - 15.5 mi

Top 78%
Γ—4
+66ft-88ft

Overall

22756

Females

9072

F18-39

9072

25K→30K

15.5 - 18.6 mi

Top 75%
Γ—9
+181ft-148ft

Overall

21872

Females

8707

F18-39

8707

30K→20M

18.6 - 20.0 mi

Top 76%
Γ—5
+64ft-50ft

Overall

21986

Females

8848

F18-39

8848

20M→21M

20.0 - 21.0 mi

Top 72%
Γ—8
+106ft-24ft

Overall

20777

Females

8262

F18-39

8262

21M→35K

21.0 - 21.8 mi

Top 80%
Γ—7
+17ft-86ft

Overall

23123

Females

9510

F18-39

9510

35K→23M

21.8 - 23.0 mi

Top 86%
Γ—5
+23ft-63ft

Overall

24912

Females

10531

F18-39

10531

23M→24M

23.0 - 24.0 mi

Top 97%
Γ—6
+12ft-82ft

Overall

28080

Females

12152

F18-39

12152

24M→40K

24.0 - 24.9 mi

Top 76%
Γ—1
+6ft-20ft

Overall

22009

Females

9109

F18-39

9109

40K→25.2M

24.9 - 25.2 mi

Top 77%
Γ—1
+13ft-16ft

Overall

22341

Females

9260

F18-39

9260

25.2M→FINISH

25.2 - 26.2 mi

Top 73%
Γ—2
+22ft-21ft

Overall

21110

Females

8638

F18-39

8638

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Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1856
Passed By
1193
Net Change
+663
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start β†’ 5K----#23909
5K β†’ 10K235197+38#23909#23871
10K β†’ 15K152159-7#23871#23878
15K β†’ 20K26945+224#23878#23654
20K β†’ HALF3011+19#23654#23635
HALF β†’ 25K20529+176#23635#23459
25K β†’ 30K33824+314#23459#23145
30K β†’ 20M13926+113#23145#23032
20M β†’ 21M17810+168#23032#22864
21M β†’ 35K3351-18#22864#22882
35K β†’ 23M33180-147#22882#23029
23M β†’ 24M3431-428#23029#23457
24M β†’ 40K9714+83#23457#23374
40K β†’ 25.2M338+25#23374#23349
25.2M β†’ FINISH1118+103#23349#23246
TOTALS18561193+663

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πŸ“Š

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:
Category:

πŸ“ˆPosition Graph

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🎨Heatmap Timeline

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πŸ”„Passing Circle

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🌊Position Flow

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πŸƒRace 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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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing