I just started playing SC2 and quickly learned I have had a 0% success rate when fighting against protoss. This is mainly because of what I hear is called a mass stalkers rush. This thing sucks. I don't know what to do. Please help fellow Giantbombros(bras)!  
P.S. I'm playing as terran.

Well, you can't go wrong with Medivac+Marauders with concussive shell.  Siege tanks will keep em at bay, just watch out for blink.  Both of those units do bonus damage vs. armored units (which stalkers are).

I had 3 siege tanks but they got messed up right quick. Are they weaker in siege mode?

Marauders with stim wreck mass stalkers.

Mass Marauder balls with Medivacs always beats a Stalker army. Stalkers are actually so pitifully weak that its sad.

Place your back to a wall and knock them down with the Force Gun when they charge you.

You don't! AHAHAHA seriously though please don't because I like to make a lot of blink stalkers and I don't like losing.

" I had 3 siege tanks but they got messed up right quick. Are they weaker in siege mode? "

marauders are king against stalkers i find.

Marauders with conc. shell make me rage when going blink stalkers.  They slow the stalkers down and eat through them really fast.  Stalkers don't stand up well unsupported against an mmm ball in general though.

Show us the replay, we don't even know if your opponent's army composition is the problem.

Stim, concussive grenades and mass marauders, baby.

Send a replay, let's have a look so we can see better what the problem was.

" Place your back to a wall and knock them down with the Force Gun when they charge you. "

at the risk of sounding like a broken record here.... 
 
marauders eat stalkers

Use the ghosts EMP to destroy their shields and then the marauders should have a very easy time taking them out.

Tanks in normal mode can do some good damage vs an early stalker rush, especially if you have the tanks behind a wall with your scvs repairing them and your mauraders offering backup. 
 
Tanks in normal mode have great DPS versus armored units. 

mmm with stim... pretty much destroys gateway units hard.  Unless they manage to get 2/2 upgrades

Mass anything.  
 
Seriously, Stalkers are one of the worst cost effective units in the game.  In smaller numbers they actually lose to workers for cost.   
 
If you want to really obliterate them: 
 
As Toss Immortals eat them alive.   
 
Terrans will destroy them with Marauders.   
 
For Zerg, just about anything.  Lings, Roaches, and Hydras all beat them badly for cost.  

The problem isn't that "you had the wrong unit"
 
it's likely
 
"you suck at macro"

" @MementoMori:  He just started playing when this was posted, give the guy a break.
 
@imsh_pl: The stalker mobility is what makes them awesome, I think.  Blink, and the fact that they're so damn fast just makes them a pain to deal with as a terran.  They can outmaneuver a mech army, warp in to deflect drops, and destroy vikings trying to target a colossus with ease.  Good unit.  I hate it. "

  They are designed to be a ranged support unit, they should hit harder and die faster.  Their mobility is also too good.  "

Mass Restraining Orders. 
Boom.

" @imsh_pl:  " Also, stalkers win a fight vs roaches easily. That 'lose to workers' statement is really bold too, imo."  Stalkers are flat out destroyed by Roaches of EQUAL COST.   Sure if you send even numbers the Stalkers come out slightly ahead, but a Stalker costs 2x what a roach does.  When out numbered 2-1 Stalkers get smashed quickly.   The fight isn't even close, Stalkers get annihilated.    As for workers beating them for cost, ya in practical terms that is not true.  But take 4 works and send them on a stalker (without micro) and the workers win.   Things turn for the stalkers when numbers grow, but the point still stands.   "

@Mike17032

" @csl316 said:

" @MementoMori:  He just started playing when this was posted, give the guy a break.
 
@imsh_pl: The stalker mobility is what makes them awesome, I think.  Blink, and the fact that they're so damn fast just makes them a pain to deal with as a terran.  They can outmaneuver a mech army, warp in to deflect drops, and destroy vikings trying to target a colossus with ease.  Good unit.  I hate it. "

 Stalkers are a poorly designed unit.  They move too fast, are too durable, and worst of all do far too little damage.  They are designed to be a ranged support unit, they should hit harder and die faster.  Their mobility is also too good.   They are also the reason Toss AA is awful, they are counted for cost by anything that can hit them from the air.

  They are also the reason Toss AA is awful, they are counted for cost by anything that can hit them from the air.  

@Mike17032

" @imsh_pl:  "  As for workers beating them for cost, ya in practical terms that is not true.  But take 4 works and send them on a stalker (without micro) and the workers win.   Things turn for the stalkers when numbers grow, but the point still stands.   "

" The problem isn't that "you had the wrong unit"  
 
it's likely "

" "you suck at macro" "

@Donos said:

" @Mike17032 said:

  They are designed to be a ranged support unit, they should hit harder and die faster.  Their mobility is also too good.  "

If it doesn't walk like a support unit, swim like a support unit or quack like a support unit, maybe it's not a support unit. "

 
 
 
   

" @Mike17032 said: 

" @imsh_pl:  " Also, stalkers win a fight vs roaches easily. That 'lose to workers' statement is really bold too, imo."  Stalkers are flat out destroyed by Roaches of EQUAL COST.   Sure if you send even numbers the Stalkers come out slightly ahead, but a Stalker costs 2x what a roach does.  When out numbered 2-1 Stalkers get smashed quickly.   The fight isn't even close, Stalkers get annihilated.    As for workers beating them for cost, ya in practical terms that is not true.  But take 4 works and send them on a stalker (without micro) and the workers win.   Things turn for the stalkers when numbers grow, but the point still stands.   "

You seem to be the guy to whom comparing 2 units boils down to comparing their damage and mineral/gas cost and counting their overall dps.  
 
Micro says hi. 
Supply says hi.  
Zerg larvae say hi. 
 

" Mass Restraining Orders. Boom. "

Stalkers are not a problem when your Terran. 
Marauders beat stalkers and Terrans can wall in early on. 
 
Tips? 
Work on a strong opening build to have a defensive start. 
Work on your macro-management to keep the Marauder-Stalker ratio in your favor. 
 
Try something different? 
Wall in and go for +1 Attack early on, and then mass Marauder rush them.

"Yes, I would be the guy who compares the single most important aspect of what is considered a counter to what, cost.  For cost, Stalkers flat out lose to roaches. " 

 "Yes, taking 4 shots to kill a worker is "hitting hard".  Interesting concept there. " 

"And yes, Toss have by far the worst AA of all 3 races."

"They are the only race to lack a gas free unit that can defend against air harass.  That alone is a huge problem. "

 "Add in the fact that stalkers are countered for cost by any air unit that has the ability to hit them and things get worse. "  

"Thats the point, that without micro they are less effective (in small numbers of course) in combat than workers."

" Stalkers are not a problem when your Terran. Marauders beat stalkers and Terrans can wall in early on.  Tips? Work on a strong opening build to have a defensive start. Work on your macro-management to keep the Marauder-Stalker ratio in your favor.  Try something different? Wall in and go for +1 Attack early on, and then mass Marauder rush them. "

" @imsh_pl said: 
 
  I don't know if you noticed, but 2 roaches don't cost as much as one stalker.  
 
Also, if you want to suppose than 1 stalker equals 2 roaches: again, stalkers lose no health while killing all the roaches. Watch  these  two games.   Not quite, no.  But it is very close to that.  And again, for cost Roaches beat Stalkers.  This isn't something that is up for debate, it is simple fact.   Toss need either Immortals, VRs, or Coli to stop Roach play from Zergs.  And grats on finding someone who knew how to micro their stalkers vs someone who didn't know how to micro Roaches (or was too lazy to research burrow, something that hits the field long before blink).  Better players rolling scrubs isn't good evidence for unit balance.   "Oh, so you're saying that a unit is bad because it takes too many shots to kill a worker with it?  Interesting concept there.By your definition dark templar is the best unit in the game, and stalkers are better than marauders.  "  No, just proving you wrong on stalkers "hitting hard".  They don't , at all.  Not even against armored where they get a terribly scaling bonus.  It is hard to find a unit that does lower DPS, because you can't.  They have the lowest unarmored DPS in the game almost, two workers do almost as much.   Is this the part where you tell me DPS doesn't matter and there are other factors involved in "hitting hard"?    http://spreadsheets.google.com/pub?key=t8Z5bsJL0-2LyqHW1DWUAYA&output=html     "  Uhm, nope.  "  Your utter lack of evidence has totally convinced me that Toss AA is great.  Even though they are the only race with no gas free AA units, and ground units that flat out lose to anything with the ability to hit them back.    "  It's not a problem at all, really. I haven't heard anyone complain that stalkers are bad AA because they cost gas. Except you, that is."  Then you must not understand the game well, or spend much time reading the Battle.net forums.  Having a gas cost on a unit is a big difference vs one that does not, and Toss is already very gas heavy.   If I have to explain why it matters, you wouldn't understand it anyway. Btw they are not "bad" because they cost gas, they are bad because they lose for cost to all flying units.  The fact that they cost gas is only adding insult to injury.   The idea that you need "exact" cost is just silly, not sure what kind of logic you are trying to use but it's failing.   "    Every unit in the game is less effective without micro, actually. When you're buying a unit, you're not only paying only for damage and health, you know.    I don't know why you're so obssessed with comparing units based solely on their damage, health and cost. In SC II there are way too many factors in such equasion, and there is no possible way to state if one unit is better than the other. Every unit has its advantages and disadvantages. ""  Look up, thats my point going right over your head.   No, I don't expect you to understand.  But given the many other things you seem to not understand about SC2 I wouldn't worry about this one too much.    "