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BOSTON MARATHON 2026

Cassandra Lopez

Bib: 30667•F

CA

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Overall
#0 / 29021
Gender (Female)
#0 / 12578
Age Group (F18-39)
#0 / 5716
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· 3.11 mi
28:14
Rank: #23025
Start → 5K
28:14 | 9:06/mi
10K· 6.21 mi
55:42
Rank: #22585 (+440)
5K → 10K
27:28 | 8:51/mi
15K· 9.32 mi
1:22:28
Rank: #21987 (+598)
10K → 15K
26:46 | 8:37/mi
20K· 12.43 mi
1:49:58
Rank: #21769 (+218)
15K → 20K
27:30 | 8:52/mi
HALF· 13.11 mi
1:55:46
Rank: #21694 (+75)
20K → HALF
5:48 | 8:31/mi
25K· 15.53 mi
2:17:40
Rank: #21615 (+79)
HALF → 25K
21:54 | 9:02/mi
30K· 18.64 mi
2:47:55
Rank: #21809 (-194)
25K → 30K
30:15 | 9:45/mi
20M
3:01:10
Rank: #21813 (-4)
30K → 20M
13:15 | 9:46/mi
21M
3:11:53
Rank: #21851 (-38)
20M → 21M
10:43 | 10:43/mi
35K· 21.75 mi
3:18:40
Rank: #21793 (+58)
21M → 35K
6:47 | 9:05/mi
23M
3:30:32
Rank: #21738 (+55)
35K → 23M
11:52 | 9:29/mi
24M
3:39:34
Rank: #21679 (+59)
23M → 24M
9:02 | 9:02/mi
40K· 24.85 mi
3:47:55
Rank: #21687 (-8)
24M → 40K
8:21 | 9:46/mi
25.2M
3:51:50
Rank: #21745 (-58)
40K → 25.2M
3:55 | 11:22/mi
FINISH· 26.22 mi
4:01:34
Rank: #21785 (-40)
25.2M → FINISH
9:44 | 9:34/mi
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Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:55:46
Pace8:50 /mi
2nd Half
Distance13.11 mi
Time2:05:48
Pace9:36 /mi
📊Positive Split: 8.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:55:4628:149:0628:14
9:06
-
10K
6.21 mi12:23:1455:428:5827:28
8:51
-0:15
15K
9.32 mi12:50:001:22:288:5126:46
8:37
-0:14
20K
12.43 mi13:17:301:49:588:5127:30
8:52
+0:15
HALF
13.11 mi13:23:181:55:468:505:48
8:31
-0:21
25K
15.53 mi13:45:122:17:408:5221:54
9:02
+0:31
30K
18.64 mi14:15:272:47:559:0130:15
9:45
+0:43
20M
20.00 mi14:28:423:01:109:0413:15
9:46
+0:01
21M
21.00 mi14:39:253:11:539:0910:43
10:43
+0:57
35K
21.75 mi14:46:123:18:409:096:47
9:05
-1:38
23M
23.00 mi14:58:043:30:329:1011:52
9:29
+0:24
24M
24.00 mi15:07:063:39:349:099:02
9:02
-0:27
40K
24.85 mi15:15:273:47:559:118:21
9:46
+0:44
25.2M
25.20 mi15:19:223:51:509:123:55
11:22
+1:36
FINISH
26.22 mi15:29:064:01:349:149:44
9:34
-1:48

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

8:31 /mi

Average Pace

9:13 /mi

Slowest Pace

11:22 /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

32:34

13% of race

Time at Steady Pace

2:00:55

50% of race

Time at Slower Pace

1:28:05

36% of race

Average Pace: 9:13 /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 mi11:55:4628:149:0628:14
9:06
#23025
10K
6.21 mi12:23:1455:428:5827:28
8:51
#22585
15K
9.32 mi12:50:001:22:288:5126:46
8:37
#21987
20K
12.43 mi13:17:301:49:588:5127:30
8:52
#21769
HALF
13.11 mi13:23:181:55:468:505:48
8:31
#21694
25K
15.53 mi13:45:122:17:408:5221:54
9:02
#21615
30K
18.64 mi14:15:272:47:559:0130:15
9:45
#21809
20M
20.00 mi14:28:423:01:109:0413:15
9:46
#21813
21M
21.00 mi14:39:253:11:539:0910:43
10:43
#21851
35K
21.75 mi14:46:123:18:409:096:47
9:05
#21793
23M
23.00 mi14:58:043:30:329:1011:52
9:29
#21738
24M
24.00 mi15:07:063:39:349:099:02
9:02
#21679
40K
24.85 mi15:15:273:47:559:118:21
9:46
#21687
25.2M
25.20 mi15:19:223:51:509:123:55
11:22
#21745
FINISH
26.22 mi15:29:064:01:349:149:44
9:34
#21785
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 mi230259186918620781(Top 72%)7997(Top 64%)7997(Top 140%)
10K6.21 mi3.10 mi22585+4408949+2378949+23722102(Top 76%)8704(Top 69%)8704(Top 152%)
15K9.32 mi3.11 mi21987+5988654+2958654+29520781(Top 72%)7997(Top 64%)7997(Top 140%)
20K12.43 mi3.11 mi21769+2188549+1058549+10521248(Top 73%)8267(Top 66%)8267(Top 145%)
HALF13.11 mi0.68 mi21694+758507+428507+4220368(Top 70%)7799(Top 62%)7799(Top 136%)
25K15.53 mi2.42 mi21615+798468+398468+3921333(Top 74%)8336(Top 66%)8336(Top 146%)
30K18.64 mi3.11 mi21809-1948577-1098577-10922389(Top 77%)8971(Top 71%)8971(Top 157%)
20M20.00 mi1.36 mi21813-48607-308607-3021904(Top 75%)8800(Top 70%)8800(Top 154%)
21M21.00 mi1.00 mi21851-388638-318638-3122454(Top 77%)9125(Top 73%)9125(Top 160%)
35K21.75 mi0.75 mi21793+588615+238615+2320315(Top 70%)8102(Top 64%)8102(Top 142%)
23M23.00 mi1.25 mi21738+558603+128603+1220562(Top 71%)8241(Top 66%)8241(Top 144%)
24M24.00 mi1.00 mi21679+598583+208583+2019634(Top 68%)7875(Top 63%)7875(Top 138%)
40K24.85 mi0.85 mi21687-88602-198602-1921267(Top 73%)8724(Top 69%)8724(Top 153%)
25.2M25.20 mi0.35 mi21745-588637-358637-3523227(Top 80%)9729(Top 77%)9729(Top 170%)
FINISH26.22 mi1.02 mi21785-408661-248661-2422529(Top 78%)9351(Top 74%)9351(Top 164%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 72%
×21stories
+97ft-345ft

Overall

20781

Females

7997

F18-39

7997

5K→10K

3.1 - 6.2 mi

Top 76%
×5stories
+79ft-138ft

Overall

22102

Females

8704

F18-39

8704

10K→15K

6.2 - 9.3 mi

Top 72%
×3stories
+67ft-78ft

Overall

20781

Females

7997

F18-39

7997

15K→20K

9.3 - 12.4 mi

Top 73%
×5stories
+106ft-86ft

Overall

21248

Females

8267

F18-39

8267

20K→HALF

12.4 - 13.1 mi

Top 70%
×2stories
+19ft-37ft

Overall

20368

Females

7799

F18-39

7799

HALF→25K

13.1 - 15.5 mi

Top 74%
×4stories
+66ft-88ft

Overall

21333

Females

8336

F18-39

8336

25K→30K

15.5 - 18.6 mi

Top 77%
×9stories
+181ft-148ft

Overall

22389

Females

8971

F18-39

8971

30K→20M

18.6 - 20.0 mi

Top 75%
×5stories
+64ft-50ft

Overall

21904

Females

8800

F18-39

8800

20M→21M

20.0 - 21.0 mi

Top 77%
×8stories
+106ft-24ft

Overall

22454

Females

9125

F18-39

9125

21M→35K

21.0 - 21.8 mi

Top 70%
×7stories
+17ft-86ft

Overall

20315

Females

8102

F18-39

8102

35K→23M

21.8 - 23.0 mi

Top 71%
×5stories
+23ft-63ft

Overall

20562

Females

8241

F18-39

8241

23M→24M

23.0 - 24.0 mi

Top 68%
×6stories
+12ft-82ft

Overall

19634

Females

7875

F18-39

7875

24M→40K

24.0 - 24.9 mi

Top 73%
×1story
+6ft-20ft

Overall

21267

Females

8724

F18-39

8724

40K→25.2M

24.9 - 25.2 mi

Top 80%
×1story
+13ft-16ft

Overall

23227

Females

9729

F18-39

9729

25.2M→FINISH

25.2 - 26.2 mi

Top 78%
×2stories
+22ft-21ft

Overall

22529

Females

9351

F18-39

9351

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
2296
Passed By
1056
Net Change
+1240
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23025
5K → 10K555115+440#23025#22585
10K → 15K61416+598#22585#21987
15K → 20K28365+218#21987#21769
20K → HALF805+75#21769#21694
HALF → 25K16283+79#21694#21615
25K → 30K101295-194#21615#21809
30K → 20M8993-4#21809#21813
20M → 21M65103-38#21813#21851
21M → 35K668+58#21851#21793
35K → 23M10550+55#21793#21738
23M → 24M9031+59#21738#21679
24M → 40K4755-8#21679#21687
40K → 25.2M967-58#21687#21745
25.2M → FINISH3070-40#21745#21785
TOTALS22961056+1240
📊

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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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing