Pool A
Qualified: Chile, Peru, Panama, Uruguay
Eliminated: Mexico, Guatemala
Correct.
Pool B
Qualified: USA, Brazil
In Contention: Bolivia, Ecuador, Paraguay, Puerto Rico
Bolivia has virtually qualified. They would have to lose their game against Ecuador by 20 or more AND have Paraguay beat Puerto Rico by enough to make up a 41 point differential.
Paraguay will qualify with a win over Puerto Rico, as long as Ecuador doesn't beat Bolivia by a larger margin.
Ecuador will qualify with a 21 point win over Bolivia. or with a larger win than Paraguay, or with a win and a loss by Paraguay.
Ecuador and Paraguay could qualify if both have big wins (21+ points each). One of them could also qualify, if both lose, and Puerto Rico does not make up some ground in point differential.
Puerto Rico can qualify with a 9+ win over Paraguay, and by gaining 18 points on a losing Ecuador.
Pool C
Qualified: Argentina, Canada
In Contention: Colombia, Venezuela, Dominican Republic, Costa Rica
Colombia has virtually qualified. They would have to lose their game against Venezuela by 27 or more AND have the winner of the Dominican Republic-Costa Rica game make up between 61 (for DR) or 73 (for CR) in the point differential category to miss out.
Venezuela will need a win, plus maintain their slender (7 to 19) point margin over the winner of the Dominican Republic or Costa Rica game. Venezuela will also qualify with a win by 27 or more regardless of the outcome of the other game.
The winner of the Domininican Republic-Costa Rica game will qualify if Colombia wins, but will be need a fairly solid win if Venezuela wins.