Those of you who play 9+ tables, how do you decide what hands to call/fold/raise also having position in mind, so quick? Do you pay much attention to other player's stats? It looks pretty impossible to me, so I'd really appreciate if some multitabling winning player explains his/her game in brief.

Is this for cash or tourneys? Tourneys can be extreeemely easy to play robotically (and taggish) up thru the middle stages. Cash, just play ABC poker. Don't make complicated bluffs, calls, etc. Play mostly level 1 or 2 poker. As for how to play all your hands pre-flop, have a solid seat-by-seat strategy imo. Just print it out and have it in front of you, after a day or two it will be like second nature to you and you'll have it memorized. Also have robotic flop-dependent rules for when to cbet or not, this will make things much easier. Don't double barrel, don't triple barrel. Mostly 3-bet more solidly than you might normally, avoid overly marginal situations as well.

Fwiw, this is mostly for lower limits, where you can expect opponents to make all the mistakes for you and hand you their money over time. At higher limits, you either need a much larger toolset, skills, or it just isn't a very good idea to begin with.

Above poster is correct. When multi-tabling, you do not have the time to get a read on any of your opponents. At the micro-limits, play ABC poker and you will do fine over the long term. You are going to lose a lot of pots with strong hands to weak players with weak hands, but over the long-term, you should be bringing in the money.

I decided to step up to 12 tables, big fail for me, lost alot of buyins, i was def not ready for it or it just isnt for me.

I stepped back to 9 tabling and seem to be back on game, so word of warning, dont be greedy and try to rush yourself, slow and steady does indeed win the race.

I dont play 9+ all the time, but when I'm "in the zone" so to speak I'll fire them up until I can't focus, then slowly drop back down.

Answers

1. Most of it is systematic. 58s UTG autofold, Button might be an openraise depending on the table. If you have a good idea of starting hand ranges by position, you can easily look at your hand and decide how you wish to play it.

PLUS: You tend to play much tighter when you have that many tables open, so the hand that looks playable 2 tabling looks like crap when you have 3 pocket pairs and AKs going on 4 other tables.

2. I pay attention to stats 1 tabling or 12 tabling. I don't rely on them in either case. The biggest stat change is I rely more on the stat bar for marginal situations, as opposed to my notes (which I'll make afterwards when I have that many tables) My checklist when a play is not automatic no matter how many tables in order
1. How has the play flowed this hand
2. How does my hand compare to his general range.
3. What notes do I have, if any?
4. What are his stats? Is he making his standard play or is this something new?

For arguments sake: early in a session
I hold AKo on the button: UTG raises small (happens often in microstakes) Folds to me.

Skip step 1 here, because there has not been enough play to have a flow.
2. My hand compares well to his range in general. I'm only completely destroyed by pocket Aces, though I wouldn't want to see any pocket pair or AKs (he'd be freerolling for an easier to make flush if we got all in).
3. No notes, continue
4. Ohh hes 45/38 He's opening any broadway, any pocket pair, any suited or any connector, and he's not positionally aware. If I have time I might further at his went to showdown and won at showdown stats to see how passive he is postflop. Usually though, I have all the information I need.

3bet.

As you can see it's not super complicated, and if I get called, It's generally pretty easy to figure out if you're ahead or behind (at the lower stakes).

An observant player will notice how my play is almost completely textbook, but the fish won't. They'll still give me 3 streets of value on my excellent hands, let me see cheap showdowns on marginal hands, and let me off cheap with busted hands. The observant, skilled, player will play back at me, reraise me light, 4bet me, all that jazz. It's ok. I'm playing to win money, not get into a fancy play war with another reg. If I'm getting played back at too much, I'll leave the table (again assuming I'm running 8+ tables). There's always another table and plenty of fish to go around.

Advice: Don't go over 2 tables until you can win while basically on autopilot. Then add one. Repeat. Don't play more tables than you can win at. Note that this does not mean you have to crush each individual table. Here are the results from my last 8 table session at 5nl by table (roughly 100 hands at each table)
1. -2
2. .03
3. 6.45
4. -1.50
5. .23
6. 2.36
7. 0 (WTF I know)
8. .98

Nothing superb as I got no action PF on any AA-QQ hands except for one lost buyin KK v AA, but overall I made about 1 buyin in an hour.

I could make more ptbb/100 playing 4 tables, but less money overall, and again, when I have this many tables going, I want cash, not epeen.