When filling out an NCAA tournament bracket, picking top-three seeds is a safe bet in choosing the Final Four. But oftentimes winning your March Madness pool rests on which picks can make it to the tourney's second weekend. 

Here's a look at five teams who could surprise by getting to the Sweet 16. 

Oregon: The Ducks (22-7) are a projected No. 4 seed in the latest USA TODAY Sports bracketology and if that seeding stands then Oregon is technically supposed to get past first- and second-round opponents to reach the Sweet 16. But remember the No. 4 seed usually has to fend off a scrappy mid-major in the first round and a potentially underrated No. 5 seed in the second. The reason Oregon is a lock to get to get there, after surprisingly reaching the Sweet 16 last March, starts with veteran point guard Payton Pritchard (20.2 ppg, 5.4 apg), who erupted for 38 points in an overtime win at Arizona. 

Wisconsin: The Badgers (20-10) are surging. They've won seven consecutive games to vault to the top of the Big Ten standings and are lined up to secure a No. 5 seed on Selection Sunday.