SwimMeet
IQ
Rankings
Time standards
IMX
Compare
☰
Pricing
Log in
Get started free
Loading profile…
✦
Are you Mackenzie?
Claim this profile to track goals, get AI insights, and control your privacy.
Claim profile →
MO
Mackenzie O'Brien
11 · F · Tollefson Swimming
PV #3846
50 Breast
42.67
AA
50 Breast
37.22
AA
100 Breast
1:21.86
A
+ Follow
⇌ Compare
50 Breast PROGRESSION
Getting faster
Orange dots mark personal records
Mackenzie's 50 Breast progression
Line chart of times from 39.66 to 42.67.
37.03
38.50
39.96
41.42
42.88
RECENT ACTIVITY
Latest results
100 Free
Maryland State LC Championship · 5/31
1:21.76
BB
–
50 Breast
Maryland State LC Championship · 5/31
42.67
AA
–
50 Fly
Maryland State LC Championship · 5/31
41.15
B
–
50 Free
Maryland State LC Championship · 5/30
35.20
BB
▼ 0.37
COMPARE
How do you stack up against Mackenzie?
Head-to-head across shared events, with same-age timeline alignment. Free to start.
Compare →
RECENT MEETS
Last 3
Maryland State LC Championship
6 swims
2026-05-31
2026 PAC Dive into Spring LC M
1 swim
2026-04-25
2026 PV SC 14 & Under Champion
5 swims
2026-03-15
Your swims are probably already here.
Search your name, claim your profile, start tracking — free.
Find yourself →
Public results from published LSC files. Don't see your results? Not every LSC publishes result files — email your meet's official result file (Hy-Tek .cl2/.sd3) to support@swimmeetiq.com and we'll add it.