I'm a self rated 4.0 and played 2 4.0 USTA tournaments last year in Boston last year.
Lost a 1st match against year long club player
7-6 (8-6) tie breaker to someone who was all around better than me
Lost a 2nd match against year long tournament traveler player (did a tourn almost every weekend
6-4 - I think I was better than this guy but was tight.... but he won, enough said.
Does my 4.0 self rating hold true?
Here, tournaments dont count towards NTRP, so you have a lot of people "testing" things out. People play up all the time, and because nothing really matters you have people just messing around.
NTRP and age based tournaments arnt a good proving ground IMO.
Here, the best players usually play WTT. Most WTT teams are made of national level USTA players, with a .5 above level player, playing singles. So, if you're in 4.0 WTT, you will likely have a 4.5 playing singles ect.
You have to find the strongest players for each field before you can say you've "tested" yourself. I can tell you 100% that regular league matches are not really a good indicator of skill. You have to look at play off performance, and leagues where NTRP doesnt matter so much. Right now, our mixed team is #2 in the flight and is going to the sectional playoffs this weekend.
Guess what...
We rolled every other team in the flight except the #1 team.
The #1 team beat us (1-1) (2-2) (4-6-1)
And we played our best lineup that week.
That's just the difference between the #1 and #2 teams in a FLIGHT in MIXED.