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BOSTON MARATHON 2026

Laura Cha

Bib: 23134•F

NY

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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
27:10
3.11 mi
Rank: #21427
Start → 5K
27:10 | 8:45/mi
10K
55:01
6.21 mi
Rank: #22080 (-653)
5K → 10K
27:51 | 8:58/mi
15K
1:23:21
9.32 mi
Rank: #22477 (-397)
10K → 15K
28:20 | 9:08/mi
20K
1:52:47
12.43 mi
Rank: #22833 (-356)
15K → 20K
29:26 | 9:29/mi
HALF
1:58:57
13.11 mi
Rank: #22842 (-9)
20K → HALF
6:10 | 9:03/mi
25K
2:22:28
15.53 mi
Rank: #23005 (-163)
HALF → 25K
23:31 | 9:42/mi
30K
2:53:20
18.64 mi
Rank: #22983 (+22)
25K → 30K
30:52 | 9:57/mi
20M
3:06:53
20.00 mi
Rank: #22934 (+49)
30K → 20M
13:33 | 9:59/mi
21M
3:17:27
21.00 mi
Rank: #22846 (+88)
20M → 21M
10:34 | 10:34/mi
35K
3:24:52
21.75 mi
Rank: #22865 (-19)
21M → 35K
7:25 | 9:55/mi
23M
3:36:44
23.00 mi
Rank: #22736 (+129)
35K → 23M
11:52 | 9:29/mi
24M
3:46:23
24.00 mi
Rank: #22683 (+53)
23M → 24M
9:39 | 9:39/mi
40K
3:54:31
24.85 mi
Rank: #22593 (+90)
24M → 40K
8:08 | 9:31/mi
25.2M
3:58:00
25.20 mi
Rank: #22536 (+57)
40K → 25.2M
3:29 | 10:07/mi
FINISH
4:07:13
26.22 mi
Rank: #22474 (+62)
25.2M → FINISH
9:13 | 9:03/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:58:57
Pace9:05 /mi
2nd Half
Distance13.11 mi
Time2:08:16
Pace9:48 /mi
📊Positive Split: 7.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:29:3327:108:4527:10
8:45
-
10K
6.21 mi11:57:2455:018:5227:51
8:58
+0:13
15K
9.32 mi12:25:441:23:218:5728:20
9:08
+0:10
20K
12.43 mi12:55:101:52:479:0529:26
9:29
+0:21
HALF
13.11 mi13:01:201:58:579:056:10
9:03
-0:26
25K
15.53 mi13:24:512:22:289:1123:31
9:42
+0:39
30K
18.64 mi13:55:432:53:209:1830:52
9:57
+0:15
20M
20.00 mi14:09:163:06:539:2113:33
9:59
+0:02
21M
21.00 mi14:19:503:17:279:2510:34
10:34
+0:35
35K
21.75 mi14:27:153:24:529:267:25
9:55
-0:39
23M
23.00 mi14:39:073:36:449:2611:52
9:29
-0:26
24M
24.00 mi14:48:463:46:239:269:39
9:39
+0:10
40K
24.85 mi14:56:543:54:319:278:08
9:31
-0:08
25.2M
25.20 mi15:00:233:58:009:273:29
10:07
+0:36
FINISH
26.22 mi15:09:364:07:139:279:13
9:03
-1:04

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

8:45 /mi

Average Pace

9:26 /mi

Slowest Pace

10:34 /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

1:38:44

40% of race

Time at Steady Pace

1:22:36

33% of race

Time at Slower Pace

1:05:53

27% of race

Average Pace: 9:26 /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 mi11:29:3327:108:4527:10
8:45
#21427
10K
6.21 mi11:57:2455:018:5227:51
8:58
#22080
15K
9.32 mi12:25:441:23:218:5728:20
9:08
#22477
20K
12.43 mi12:55:101:52:479:0529:26
9:29
#22833
HALF
13.11 mi13:01:201:58:579:056:10
9:03
#22842
25K
15.53 mi13:24:512:22:289:1123:31
9:42
#23005
30K
18.64 mi13:55:432:53:209:1830:52
9:57
#22983
20M
20.00 mi14:09:163:06:539:2113:33
9:59
#22934
21M
21.00 mi14:19:503:17:279:2510:34
10:34
#22846
35K
21.75 mi14:27:153:24:529:267:25
9:55
#22865
23M
23.00 mi14:39:073:36:449:2611:52
9:29
#22736
24M
24.00 mi14:48:463:46:239:269:39
9:39
#22683
40K
24.85 mi14:56:543:54:319:278:08
9:31
#22593
25.2M
25.20 mi15:00:233:58:009:273:29
10:07
#22536
FINISH
26.22 mi15:09:364:07:139:279:13
9:03
#22474
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 mi214278407840723216(Top 80%)9255(Top 74%)9255(Top 751%)
10K6.21 mi3.10 mi22080-6538710-3038710-30322695(Top 78%)8994(Top 72%)8994(Top 729%)
15K9.32 mi3.11 mi22477-3978898-1888898-18823216(Top 80%)9255(Top 74%)9255(Top 751%)
20K12.43 mi3.11 mi22833-3569069-1719069-17123684(Top 82%)9533(Top 76%)9533(Top 773%)
HALF13.11 mi0.68 mi22842-99072-39072-322977(Top 79%)9154(Top 73%)9154(Top 742%)
25K15.53 mi2.42 mi23005-1639170-989170-9823559(Top 81%)9492(Top 75%)9492(Top 770%)
30K18.64 mi3.11 mi22983+229193-239193-2322959(Top 79%)9265(Top 74%)9265(Top 751%)
20M20.00 mi1.36 mi22934+499183+109183+1022516(Top 78%)9112(Top 72%)9112(Top 739%)
21M21.00 mi1.00 mi22846+889155+289155+2822133(Top 76%)8958(Top 71%)8958(Top 727%)
35K21.75 mi0.75 mi22865-199175-209175-2022930(Top 79%)9414(Top 75%)9414(Top 764%)
23M23.00 mi1.25 mi22736+1299136+399136+3920568(Top 71%)8247(Top 66%)8247(Top 669%)
24M24.00 mi1.00 mi22683+539122+149122+1421840(Top 75%)8952(Top 71%)8952(Top 726%)
40K24.85 mi0.85 mi22593+909089+339089+3320471(Top 71%)8319(Top 66%)8319(Top 675%)
25.2M25.20 mi0.35 mi22536+579065+249065+2419827(Top 68%)8003(Top 64%)8003(Top 649%)
FINISH26.22 mi1.02 mi22474+629038+279038+2720744(Top 71%)8448(Top 67%)8448(Top 685%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 80%
×21
+97ft-345ft

Overall

23216

Females

9255

F50-54

9255

5K→10K

3.1 - 6.2 mi

Top 78%
×5
+79ft-138ft

Overall

22695

Females

8994

F50-54

8994

10K→15K

6.2 - 9.3 mi

Top 80%
×3
+67ft-78ft

Overall

23216

Females

9255

F50-54

9255

15K→20K

9.3 - 12.4 mi

Top 82%
×5
+106ft-86ft

Overall

23684

Females

9533

F50-54

9533

20K→HALF

12.4 - 13.1 mi

Top 79%
×2
+19ft-37ft

Overall

22977

Females

9154

F50-54

9154

HALF→25K

13.1 - 15.5 mi

Top 81%
×4
+66ft-88ft

Overall

23559

Females

9492

F50-54

9492

25K→30K

15.5 - 18.6 mi

Top 79%
×9
+181ft-148ft

Overall

22959

Females

9265

F50-54

9265

30K→20M

18.6 - 20.0 mi

Top 78%
×5
+64ft-50ft

Overall

22516

Females

9112

F50-54

9112

20M→21M

20.0 - 21.0 mi

Top 76%
×8
+106ft-24ft

Overall

22133

Females

8958

F50-54

8958

21M→35K

21.0 - 21.8 mi

Top 79%
×7
+17ft-86ft

Overall

22930

Females

9414

F50-54

9414

35K→23M

21.8 - 23.0 mi

Top 71%
×5
+23ft-63ft

Overall

20568

Females

8247

F50-54

8247

23M→24M

23.0 - 24.0 mi

Top 75%
×6
+12ft-82ft

Overall

21840

Females

8952

F50-54

8952

24M→40K

24.0 - 24.9 mi

Top 71%
×1
+6ft-20ft

Overall

20471

Females

8319

F50-54

8319

40K→25.2M

24.9 - 25.2 mi

Top 68%
×1
+13ft-16ft

Overall

19827

Females

8003

F50-54

8003

25.2M→FINISH

25.2 - 26.2 mi

Top 71%
×2
+22ft-21ft

Overall

20744

Females

8448

F50-54

8448

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1204
Passed By
2251
Net Change
-1047
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21427
5K → 10K79732-653#21427#22080
10K → 15K65462-397#22080#22477
15K → 20K78434-356#22477#22833
20K → HALF3241-9#22833#22842
HALF → 25K91254-163#22842#23005
25K → 30K154132+22#23005#22983
30K → 20M9849+49#22983#22934
20M → 21M12739+88#22934#22846
21M → 35K3251-19#22846#22865
35K → 23M14314+129#22865#22736
23M → 24M7320+53#22736#22683
24M → 40K999+90#22683#22593
40K → 25.2M603+57#22593#22536
25.2M → FINISH7311+62#22536#22474
TOTALS12042251-1047
📊

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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Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing