Simple question about straddles. Let's say someone has $15 left in their stack, can they straddle for the $15 with nothing behind? Secondary question if yes, can they straddle button and utg?

Straddles rules are casino-specific. There's a wide range of positional rules: Some casinos allow you to only do it from button, some from any position. There's also amount rules: Some casinos dictate a straddle must be an exact amount, some for any amount over a specific amount.

So, as with most poker answer; it depends.

Strategically though, it makes little sense. The purpose of the straddle is to get last actiion pre-flop. If you are all-in, there's no real point. Might as well just declare you are going all in blind no matter your position.

Some casinos allow for straddles only from UTG for 2BB, others allow for any amount of money from any position. The latter one would allow for that player to go all-in, the first one obviously not.

Well, if it is UTG, it's just a shove in the dark. Perfectly legal, and the question of whether or not it is a live straddle is moot. It is also bad.

this is a home game. can straddle up to 25 here. utg is just a blind raise but the question is more for the button.

Straddle rules are casino specific.

....how do you expect anyone here to know the rule for your home game?

So does your home game allow for button straddles or not?

The rules of your home game are the rules of your home game. Nobody here can tell you what they are, unless they play in your home game or made the rules for it.

Since it is your home game , simply put , the rules are what ever your group wants them to be. If you are looking for opinions on what your group does , that's OK of course, but the opinions of your players are what counts. Personally I never straddle, but I do encourage others to do it all they want.

Assuming your home game allows you to straddle on the button for any amount up to $25, then yes, you could straddle all in for $15. Not sure why you would ever want to do that, but you can. You just lose the whole reason for straddling by not having last action anymore.

Room dependent ... covered
Size of straddle ... covered, most room in our area allow 4-5x bb straddles both UTG and B. If both want to straddle then UTG gets the nod. One room allows a Player to straddle up to 50% of their stack. (Thus still leaving them with a min-raise option)

'Reason' for a straddle is to shorten the effective stacks, thus creating more action, and to gain the 'last to act' option in the first betting round.

When you bet/shove your whole stack it's not really a straddle .. it's a dark bet either in or out of position. Since you don't have any chips behind you can't act on your option even if you wanted to. But could it be a straddle?

If the house allows you to 'straddle' all-in on the B then action starts on the SB and you are all-in. But if you 'dark bet' on the B then action starts UTG and if someone raises to a different amount then you have the option to pull your bet back in most cases.

So there are some different scenarios that can happen that will really depend on the house/room rules. GL

In most rooms I play in, this would be considered deliberate action out of turn, and would be frowned upon (possibly penalized if there is a penalty that made sense for a player that was essentially trying to leave)