Live local 1/2 game in the UK.
Hero- stack 500 pound
Young white university student, have a pretty tight rep, mostly known as a decent tag player, been playing 2 hours and haven't really made a hand. Had to check fold quite a few flops after opening and given up on the turn after my c-bets have been called twice on dry boards vs fish.
Villan-stack 390
Asian Lagtard, owns a restaurant and doesn't care too much about money, plays pretty loose aggressive but usually likes to be the aggressor. Havent seen him float too many times but seen him call down draws and make a big bet on the river quite a few times when he missed his draw.

utg-- limps
hi-jack - hero raises to 8
cut off- villan calls
button big blind and utg call

flop aj5 rainbow pot 40
big blind bets 20
utg calls
hero calls
cut off calls
button folds

turn off suit 8 pot 120
checked to hero who bets 60
villan calls
everyone else folds

river 9

hero checks??

villan shoves for 280

I think V would 3bet with ak aq aj so can rule them out of his range. A5 is very possible with this villain, however I suspect he may have raised the flop with two pair. 55 is a possibility, again maybe he would raise the flop. I think v may have turned a set or hit two pair on the turn or river.

Is this thinking correct? Can I really put him on air there, which he does show up with occasionally. If a draw missed I snap call, but here I just can't see what he floats me with

I think villian is rarely bluffing here and probably shows up with Q10 in this spot alot A9 sometimes and rarely J9. Only hand villian could be bluffing is K10 and most lagtards let that go on the turn.

Did I miss were it said what hero holds?

What does hero have?

Why is hero checking the river? How does the 9 change anything?

Sorry hero has A10dd.

I checked the river because I thought only better hands would call and I would be committed if he raised me otr, was prepared to call a 1/2 to 3/4 pot bet most of the time after evaluating.

You need to bet the river, and possibly GII versus this particular opponent. We can get value from Ax hands we beat. Villain knows you're tight and you've shown a good amount of strength so if we get raised OTR, we are looking at a value hand and we can fold.

Tough spot we dont really beat much. Villain could be calling with Jx or Ax and hit river or turn here.
I would just let this one go. Yeah he might be bluffing us here every now and then but way too much variance for my liking against these of players.

That was my thinking, in the end I did find out what he had after a friend saw a card when he mucked and then v confirmed his hand. He had 34 and was drawing to the wheel, i didn't think he was that bad to be honest and may have called him down if i had seen him chase gutshots previously, but i didn't factor any gutshots into his range.

And are you from Darwin in Lancashire? I play in Lancashire.

Your play OTR needs to be x/call or bet/call, IMO.

I'm actually think checking the river vs the described opponent is the best play, but it is 100% to let him spew, calling any bet for sure. As a matter of fact, vs the described opponent, the bigger the bet, the more I like my call.

Edit: And not a massive overshove, right? I make the pot 240 OTR?