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BOSTON MARATHON 2026

Cynthia Masai

Bib: 28336β€’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
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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
30:23
3.11 mi
Rank: #25331
Start β†’ 5K
30:23 | 9:47/mi
10K
1:00:32
6.21 mi
Rank: #25200 (+131)
5K β†’ 10K
30:09 | 9:43/mi
15K
1:31:49
9.32 mi
Rank: #25450 (-250)
10K β†’ 15K
31:17 | 10:05/mi
20K
2:04:37
12.43 mi
Rank: #25664 (-214)
15K β†’ 20K
32:48 | 10:34/mi
HALF
2:12:24
13.11 mi
Rank: #25854 (-190)
20K β†’ HALF
7:47 | 11:26/mi
25K
2:40:06
15.53 mi
Rank: #26104 (-250)
HALF β†’ 25K
27:42 | 11:26/mi
30K
3:19:15
18.64 mi
Rank: #26477 (-373)
25K β†’ 30K
39:09 | 12:37/mi
20M
3:37:08
20.00 mi
Rank: #26615 (-138)
30K β†’ 20M
17:53 | 13:10/mi
21M
3:51:29
21.00 mi
Rank: #26733 (-118)
20M β†’ 21M
14:21 | 14:21/mi
35K
3:59:38
21.75 mi
Rank: #26676 (+57)
21M β†’ 35K
8:09 | 10:54/mi
23M
4:15:29
23.00 mi
Rank: #26727 (-51)
35K β†’ 23M
15:51 | 12:40/mi
24M
4:26:58
24.00 mi
Rank: #26698 (+29)
23M β†’ 24M
11:29 | 11:29/mi
40K
4:37:51
24.85 mi
Rank: #26710 (-12)
24M β†’ 40K
10:53 | 12:44/mi
25.2M
4:42:05
25.20 mi
Rank: #26689 (+21)
40K β†’ 25.2M
4:14 | 12:17/mi
FINISH
4:54:48
26.22 mi
Rank: #26793 (-104)
25.2M β†’ FINISH
12:43 | 12:29/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time2:12:24
Pace10:06 /mi
2nd Half
Distance13.11 mi
Time2:42:24
Pace12:24 /mi
πŸ“ŠPositive Split: 22.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:57:1330:239:4730:23
9:47
-
10K
6.21 mi12:27:221:00:329:4530:09
9:43
-0:04
15K
9.32 mi12:58:391:31:499:5231:17
10:05
+0:22
20K
12.43 mi13:31:272:04:3710:0232:48
10:34
+0:29
HALF
13.11 mi13:39:142:12:2410:067:47
11:26
+0:52
25K
15.53 mi14:06:562:40:0610:1927:42
11:26
0:00
30K
18.64 mi14:46:053:19:1510:4239:09
12:37
+1:11
20M
20.00 mi15:03:583:37:0810:5217:53
13:10
+0:33
21M
21.00 mi15:18:193:51:2911:0214:21
14:21
+1:11
35K
21.75 mi15:26:283:59:3811:028:09
10:54
-3:27
23M
23.00 mi15:42:194:15:2911:0715:51
12:40
+1:46
24M
24.00 mi15:53:484:26:5811:0811:29
11:29
-1:11
40K
24.85 mi16:04:414:37:5111:1110:53
12:44
+1:15
25.2M
25.20 mi16:08:554:42:0511:124:14
12:17
-0:27
FINISH
26.22 mi16:21:384:54:4811:1612:43
12:29
+0:12

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

9:43 /mi

Average Pace

11:15 /mi

Slowest Pace

14:21 /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

2:04:37

42% of race

Time at Steady Pace

55:07

19% of race

Time at Slower Pace

1:55:04

39% of race

Average Pace: 11:15 /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 mi11:57:1330:239:4730:23
9:47
#25331
10K
6.21 mi12:27:221:00:329:4530:09
9:43
#25200
15K
9.32 mi12:58:391:31:499:5231:17
10:05
#25450
20K
12.43 mi13:31:272:04:3710:0232:48
10:34
#25664
HALF
13.11 mi13:39:142:12:2410:067:47
11:26
#25854
25K
15.53 mi14:06:562:40:0610:1927:42
11:26
#26104
30K
18.64 mi14:46:053:19:1510:4239:09
12:37
#26477
20M
20.00 mi15:03:583:37:0810:5217:53
13:10
#26615
21M
21.00 mi15:18:193:51:2911:0214:21
14:21
#26733
35K
21.75 mi15:26:283:59:3811:028:09
10:54
#26676
23M
23.00 mi15:42:194:15:2911:0715:51
12:40
#26727
24M
24.00 mi15:53:484:26:5811:0811:29
11:29
#26698
40K
24.85 mi16:04:414:37:5111:1110:53
12:44
#26710
25.2M
25.20 mi16:08:554:42:0511:124:14
12:17
#26689
FINISH
26.22 mi16:21:384:54:4811:1612:43
12:29
#26793
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 mi25331103581035825848(Top 89%)10646(Top 85%)10646(Top 186%)
10K6.21 mi3.10 mi25200+13110288+7010288+7025114(Top 87%)10235(Top 81%)10235(Top 179%)
15K9.32 mi3.11 mi25450-25010427-13910427-13925848(Top 89%)10646(Top 85%)10646(Top 186%)
20K12.43 mi3.11 mi25664-21410538-11110538-11126251(Top 90%)10896(Top 87%)10896(Top 191%)
HALF13.11 mi0.68 mi25854-19010637-9910637-9927797(Top 96%)11831(Top 94%)11831(Top 207%)
25K15.53 mi2.42 mi26104-25010803-16610803-16626926(Top 93%)11321(Top 90%)11321(Top 198%)
30K18.64 mi3.11 mi26477-37311042-23911042-23927377(Top 94%)11669(Top 93%)11669(Top 204%)
20M20.00 mi1.36 mi26615-13811122-8011122-8027548(Top 95%)11791(Top 94%)11791(Top 206%)
21M21.00 mi1.00 mi26733-11811193-7111193-7127618(Top 95%)11864(Top 94%)11864(Top 208%)
35K21.75 mi0.75 mi26676+5711175+1811175+1825106(Top 87%)10579(Top 84%)10579(Top 185%)
23M23.00 mi1.25 mi26727-5111215-4011215-4026985(Top 93%)11584(Top 92%)11584(Top 203%)
24M24.00 mi1.00 mi26698+2911216-111216-125928(Top 89%)11074(Top 88%)11074(Top 194%)
40K24.85 mi0.85 mi26710-1211227-1111227-1126791(Top 92%)11542(Top 92%)11542(Top 202%)
25.2M25.20 mi0.35 mi26689+2111221+611221+624986(Top 86%)10629(Top 85%)10629(Top 186%)
FINISH26.22 mi1.02 mi26793-10411287-6611287-6627878(Top 96%)12059(Top 96%)12059(Top 211%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 89%
Γ—21
+97ft-345ft

Overall

25848

Females

10646

F18-39

10646

5K→10K

3.1 - 6.2 mi

Top 87%
Γ—5
+79ft-138ft

Overall

25114

Females

10235

F18-39

10235

10K→15K

6.2 - 9.3 mi

Top 89%
Γ—3
+67ft-78ft

Overall

25848

Females

10646

F18-39

10646

15K→20K

9.3 - 12.4 mi

Top 90%
Γ—5
+106ft-86ft

Overall

26251

Females

10896

F18-39

10896

20K→HALF

12.4 - 13.1 mi

Top 96%
Γ—2
+19ft-37ft

Overall

27797

Females

11831

F18-39

11831

HALF→25K

13.1 - 15.5 mi

Top 93%
Γ—4
+66ft-88ft

Overall

26926

Females

11321

F18-39

11321

25K→30K

15.5 - 18.6 mi

Top 94%
Γ—9
+181ft-148ft

Overall

27377

Females

11669

F18-39

11669

30K→20M

18.6 - 20.0 mi

Top 95%
Γ—5
+64ft-50ft

Overall

27548

Females

11791

F18-39

11791

20M→21M

20.0 - 21.0 mi

Top 95%
Γ—8
+106ft-24ft

Overall

27618

Females

11864

F18-39

11864

21M→35K

21.0 - 21.8 mi

Top 87%
Γ—7
+17ft-86ft

Overall

25106

Females

10579

F18-39

10579

35K→23M

21.8 - 23.0 mi

Top 93%
Γ—5
+23ft-63ft

Overall

26985

Females

11584

F18-39

11584

23M→24M

23.0 - 24.0 mi

Top 89%
Γ—6
+12ft-82ft

Overall

25928

Females

11074

F18-39

11074

24M→40K

24.0 - 24.9 mi

Top 92%
Γ—1
+6ft-20ft

Overall

26791

Females

11542

F18-39

11542

40K→25.2M

24.9 - 25.2 mi

Top 86%
Γ—1
+13ft-16ft

Overall

24986

Females

10629

F18-39

10629

25.2M→FINISH

25.2 - 26.2 mi

Top 96%
Γ—2
+22ft-21ft

Overall

27878

Females

12059

F18-39

12059

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
693*
Passed By
1679
Net Change
-1462
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start β†’ 5K----#25331
5K β†’ 10K278*147+131#25331#25200
10K β†’ 15K65200-250#25200#25450
15K β†’ 20K61200-214#25450#25664
20K β†’ HALF3193-190#25664#25854
HALF β†’ 25K31200-250#25854#26104
25K β†’ 30K32200-373#26104#26477
30K β†’ 20M18156-138#26477#26615
20M β†’ 21M14132-118#26615#26733
21M β†’ 35K636+57#26733#26676
35K β†’ 23M2677-51#26676#26727
23M β†’ 24M4516+29#26727#26698
24M β†’ 40K2537-12#26698#26710
40K β†’ 25.2M265+21#26710#26689
25.2M β†’ FINISH6110-104#26689#26793
TOTALS693*1679-1462

* Includes athletes who did not complete a segment (DNF/DNQ).

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