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BOSTON MARATHON 2026

Cynthia Dayan

Bib: 21243•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 (F50-54)
#0 / 1233
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
28:16
3.11 mi
Rank: #23063
Start → 5K
28:16 | 9:06/mi
10K
55:34
6.21 mi
Rank: #22466 (+597)
5K → 10K
27:18 | 8:48/mi
15K
1:23:00
9.32 mi
Rank: #22280 (+186)
10K → 15K
27:26 | 8:50/mi
20K
1:51:19
12.43 mi
Rank: #22291 (-11)
15K → 20K
28:19 | 9:07/mi
HALF
1:57:17
13.11 mi
Rank: #22245 (+46)
20K → HALF
5:58 | 8:46/mi
25K
2:19:01
15.53 mi
Rank: #22018 (+227)
HALF → 25K
21:44 | 8:58/mi
30K
2:49:02
18.64 mi
Rank: #22049 (-31)
25K → 30K
30:01 | 9:40/mi
20M
3:02:37
20.00 mi
Rank: #22111 (-62)
30K → 20M
13:35 | 10:01/mi
21M
3:13:15
21.00 mi
Rank: #22123 (-12)
20M → 21M
10:38 | 10:38/mi
35K
3:20:13
21.75 mi
Rank: #22087 (+36)
21M → 35K
6:58 | 9:19/mi
23M
3:31:56
23.00 mi
Rank: #21969 (+118)
35K → 23M
11:43 | 9:22/mi
24M
3:40:39
24.00 mi
Rank: #21863 (+106)
23M → 24M
8:43 | 8:43/mi
40K
3:48:08
24.85 mi
Rank: #21723 (+140)
24M → 40K
7:29 | 8:46/mi
25.2M
3:51:21
25.20 mi
Rank: #21653 (+70)
40K → 25.2M
3:13 | 9:20/mi
FINISH
3:59:56
26.22 mi
Rank: #21547 (+106)
25.2M → FINISH
8:35 | 8:26/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:57:17
Pace8:57 /mi
2nd Half
Distance13.11 mi
Time2:02:39
Pace9:22 /mi
📊Positive Split: 4.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:35:4028:169:0628:16
9:06
-
10K
6.21 mi12:02:5855:348:5727:18
8:48
-0:18
15K
9.32 mi12:30:241:23:008:5527:26
8:50
+0:02
20K
12.43 mi12:58:431:51:198:5828:19
9:07
+0:17
HALF
13.11 mi13:04:411:57:178:575:58
8:46
-0:21
25K
15.53 mi13:26:252:19:018:5721:44
8:58
+0:12
30K
18.64 mi13:56:262:49:029:0530:01
9:40
+0:42
20M
20.00 mi14:10:013:02:379:0813:35
10:01
+0:21
21M
21.00 mi14:20:393:13:159:1310:38
10:38
+0:37
35K
21.75 mi14:27:373:20:139:136:58
9:19
-1:19
23M
23.00 mi14:39:203:31:569:1311:43
9:22
+0:03
24M
24.00 mi14:48:033:40:399:128:43
8:43
-0:39
40K
24.85 mi14:55:323:48:089:117:29
8:46
+0:03
25.2M
25.20 mi14:58:453:51:219:113:13
9:20
+0:34
FINISH
26.22 mi15:07:203:59:569:108:35
8:26
-0:54

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

8:26 /mi

Average Pace

9:09 /mi

Slowest Pace

10:38 /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

58:03

24% of race

Time at Steady Pace

2:07:39

53% of race

Time at Slower Pace

54:14

23% of race

Average Pace: 9:09 /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 mi11:35:4028:169:0628:16
9:06
#23063
10K
6.21 mi12:02:5855:348:5727:18
8:48
#22466
15K
9.32 mi12:30:241:23:008:5527:26
8:50
#22280
20K
12.43 mi12:58:431:51:198:5828:19
9:07
#22291
HALF
13.11 mi13:04:411:57:178:575:58
8:46
#22245
25K
15.53 mi13:26:252:19:018:5721:44
8:58
#22018
30K
18.64 mi13:56:262:49:029:0530:01
9:40
#22049
20M
20.00 mi14:10:013:02:379:0813:35
10:01
#22111
21M
21.00 mi14:20:393:13:159:1310:38
10:38
#22123
35K
21.75 mi14:27:373:20:139:136:58
9:19
#22087
23M
23.00 mi14:39:203:31:569:1311:43
9:22
#21969
24M
24.00 mi14:48:033:40:399:128:43
8:43
#21863
40K
24.85 mi14:55:323:48:089:117:29
8:46
#21723
25.2M
25.20 mi14:58:453:51:219:113:13
9:20
#21653
FINISH
26.22 mi15:07:203:59:569:108:35
8:26
#21547
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi230639203920321885(Top 75%)8583(Top 68%)8583(Top 696%)
10K6.21 mi3.10 mi22466+5978898+3058898+30521864(Top 75%)8583(Top 68%)8583(Top 696%)
15K9.32 mi3.11 mi22280+1868797+1018797+10121885(Top 75%)8583(Top 68%)8583(Top 696%)
20K12.43 mi3.11 mi22291-118797879722421(Top 77%)8875(Top 71%)8875(Top 720%)
HALF13.11 mi0.68 mi22245+468777+208777+2021620(Top 74%)8445(Top 67%)8445(Top 685%)
25K15.53 mi2.42 mi22018+2278666+1118666+11121022(Top 72%)8185(Top 65%)8185(Top 664%)
30K18.64 mi3.11 mi22049-318712-468712-4622144(Top 76%)8836(Top 70%)8836(Top 717%)
20M20.00 mi1.36 mi22111-628750-388750-3822574(Top 78%)9145(Top 73%)9145(Top 742%)
21M21.00 mi1.00 mi22123-128772-228772-2222271(Top 77%)9031(Top 72%)9031(Top 732%)
35K21.75 mi0.75 mi22087+368765+78765+721226(Top 73%)8558(Top 68%)8558(Top 694%)
23M23.00 mi1.25 mi21969+1188731+348731+3420109(Top 69%)8034(Top 64%)8034(Top 652%)
24M24.00 mi1.00 mi21863+1068684+478684+4718154(Top 63%)7077(Top 56%)7077(Top 574%)
40K24.85 mi0.85 mi21723+1408619+658619+6517194(Top 59%)6636(Top 53%)6636(Top 538%)
25.2M25.20 mi0.35 mi21653+708586+338586+3316603(Top 57%)6321(Top 50%)6321(Top 513%)
FINISH26.22 mi1.02 mi21547+1068530+568530+5617789(Top 61%)6946(Top 55%)6946(Top 563%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 75%
×21
+97ft-345ft

Overall

21885

Females

8583

F50-54

8583

5K→10K

3.1 - 6.2 mi

Top 75%
×5
+79ft-138ft

Overall

21864

Females

8583

F50-54

8583

10K→15K

6.2 - 9.3 mi

Top 75%
×3
+67ft-78ft

Overall

21885

Females

8583

F50-54

8583

15K→20K

9.3 - 12.4 mi

Top 77%
×5
+106ft-86ft

Overall

22421

Females

8875

F50-54

8875

20K→HALF

12.4 - 13.1 mi

Top 74%
×2
+19ft-37ft

Overall

21620

Females

8445

F50-54

8445

HALF→25K

13.1 - 15.5 mi

Top 72%
×4
+66ft-88ft

Overall

21022

Females

8185

F50-54

8185

25K→30K

15.5 - 18.6 mi

Top 76%
×9
+181ft-148ft

Overall

22144

Females

8836

F50-54

8836

30K→20M

18.6 - 20.0 mi

Top 78%
×5
+64ft-50ft

Overall

22574

Females

9145

F50-54

9145

20M→21M

20.0 - 21.0 mi

Top 77%
×8
+106ft-24ft

Overall

22271

Females

9031

F50-54

9031

21M→35K

21.0 - 21.8 mi

Top 73%
×7
+17ft-86ft

Overall

21226

Females

8558

F50-54

8558

35K→23M

21.8 - 23.0 mi

Top 69%
×5
+23ft-63ft

Overall

20109

Females

8034

F50-54

8034

23M→24M

23.0 - 24.0 mi

Top 63%
×6
+12ft-82ft

Overall

18154

Females

7077

F50-54

7077

24M→40K

24.0 - 24.9 mi

Top 59%
×1
+6ft-20ft

Overall

17194

Females

6636

F50-54

6636

40K→25.2M

24.9 - 25.2 mi

Top 57%
×1
+13ft-16ft

Overall

16603

Females

6321

F50-54

6321

25.2M→FINISH

25.2 - 26.2 mi

Top 61%
×2
+22ft-21ft

Overall

17789

Females

6946

F50-54

6946

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
2370*
Passed By
854
Net Change
+1516
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23063
5K → 10K676*79+597#23063#22466
10K → 15K284*98+186#22466#22280
15K → 20K152163-11#22280#22291
20K → HALF5610+46#22291#22245
HALF → 25K260*33+227#22245#22018
25K → 30K154185-31#22018#22049
30K → 20M62124-62#22049#22111
20M → 21M7284-12#22111#22123
21M → 35K6226+36#22123#22087
35K → 23M15133+118#22087#21969
23M → 24M1137+106#21969#21863
24M → 40K1422+140#21863#21723
40K → 25.2M733+70#21723#21653
25.2M → FINISH1137+106#21653#21547
TOTALS2370*854+1516

* 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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Activity Data

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing