First time posting, so apologies if the format is incorrect or even in the wrong section!

Background information: I was fairly new to the table, so my read on people is minimal. This is around 8pm on a Saturday night at a casino in London where I have around £250 behind.

I’m in the big blind and dealt pocket aces. Before I act, one player raises to £7, with the button calling £7. I re-raise to £20. Both players call.

Flop: 9, 5, 2 (mixed board)

I check, both other players check it down too.

Turn: 7

I bet £30, original raiser calls £30 and other player folds.

River: Q (no flush on the board)

I bet £50, he calls and turns over 9-7 suited.

9-7 caller did have a big stack behind him, possibly £700

Curious whether I played this badly and what I should have done? Maybe re-raise more but I do want callers..

More pre-flop ($25 - $30), bet the flop.

Otherwise fine. Villain let you off easy on the turn (and river).

(In future, put pot sizes on each street and don't post results for at least 24 hours to give people time to reply.)

Must bet more pre and must bet flop

Raise sizing pre is just way way to small, no wonder you get people calling with trash.
Not betting the flop is just nuts....really curious on why you wouldn't bet here.
Turn and river are ok I guess, nut pretty academic after pre and flop

You played this too passively on every street.

PF, there is $17 in the pot when it gets to you, so you need to bump it up to way more than just 20 quid. Each player has to call 13 more, for potentially a $60 pot. Putting in about 20%, with an SPR of ~4, is pretty standard for the little suited hand that beat you. Plus your opponents have position; we need to make this expensive now if they want to play. I like raising up to more like 30-35. Now each opponent has to call 28 into 105, which is ~27%, but the real win is that you go to the flop with an SPR of ~2 (if you get there at all).

AP, you're now at the flop with ~60 in the pot. You need to bet this flop for value - the only reasonable hands you're behind are sets, and arguably deuces are less likely. You're getting called by most pocket pairs, some 9s, and maybe gut shots (87s, 76s). Go about 40. If you'd played it the way I recommended above, there'd be ~105 in the pot and you could fire about 75 here with the intention of shoving any turn. If that dude calls you down with 97 and spikes his two pair, well 1) good for him 2) he's drawing to 5 outs and 3) you have 8 outs to win OTR. You're often getting of value from TT-QQ and sometimes a passively played KK.

AP, you have to bet this turn and I'm glad you did. 30 is okay, I think you could have gone to more like 40 to get calls from disbelieving pairs / pair +gut shots.

AP river - this can sort of go either way. I might size a small bet to get looked up light, but I think it's hard to get called by things that we beat now. 50 is fine (less than 1/2 pot) but you're going to lose a bunch when called to wacky bull**** (like 97ss). That's poker.

Please don't post results - it tends to bias responses.

EDIT - not to derail but I'm moving to London. What casino was this and do you like it?

Welcome to the forum. Not a bad first post, OP, but in the future please don't post results. It tends to bias people's advice.

Pre-flop seems way to small. I'd go at least $30, maybe $35.

If we were deeper stacked, I'd sometimes check and sometimes bet this flop. Head's up I'd also sometimes check and sometimes bet. 3-way I'm definitely betting.

Turn/river seem fine.

Thanks all for the responses, seems like the general consensus is I under bet the flop.

Do you play cash or tournament?

I play at the Hippodrome (Leicester Square), good level of play, venue, staff and all round experience. Mainly 1/2 games and a table of 2/5. I play here 99% of the time.

Other options are Empire Casino (Leicester Square) which has less tables but higher stakes and bigger rollers.

Or Grosvenor Casino The Victoria which must have the most tables in London with various stakes. Although not great for 1/2, as you'll get a lot of people who sit down with £50.

$30-35 pre

Bet flop - 1/2 pot or so. You'd still lose this hand but it's the right play.