NCAA Scores 2017: Tournament Results Tracker for Thursday's Sweet 16 Bracket

Following a three-day break, the 2017 NCAA tournament resumed Thursday with Sweet 16 showdowns in the West and Midwest Regions. 

The evening's proceedings started with the seventh-seeded Michigan Wolverines in action against the third-seeded Oregon Ducks, and those two battled for the right to square off against the No. 1 Kansas Jayhawks or No. 4 Purdue Boilermakers in the Elite Eight. 

In the West, the top-seeded Gonzaga Bulldogs looked to avoid an upset at the hands of the No. 4 West Virginia Mountaineers, while the No. 2 seed Arizona Wildcats found themselves in a tough matchup against a burgeoning No. 11 seed in the Xavier Musketeers. 

Here's a brief rundown of the day's results, followed by recaps of each Sweet 16 tilt: 

Region	Matchup	Result	TV
Midwest	No. 7 Michigan vs. No. 3 Oregon	69-68, Oregon	CBS
West	No. 4 West Virginia vs. No. 1 Gonzaga	61-58, Gonzaga	TBS
Midwest	No. 4 Purdue vs. No. 1 Kansas	98-66, Kansas	CBS
West	No. 11 Xavier vs. No. 2 Arizona	73-71, Xavier	TBS

Oregon 69, Michigan 68

All game long, Derrick Walton Jr. (20 points) carried the Michigan Wolverines offense. 

But with time running down and a chance to send the Maize and Blue to the Elite Eight, Walton's last-second jump shot clanged off iron and careened to the floor, as NCAA March Madness documented on Twitter: 

As a result, the Ducks captured back-to-back Elite Eight berths and escaped with a 69-68 win behind 47.1 percent shooting from three and a couple of standout individual performances. 

Tyler Dorsey dropped 20 points (7-of-15 shooting) to pace all Oregon scorers, while Jordan Bell racked up 16 points and 13 rebounds on a night when the Ducks dominated the glass.

Oregon will now face the Jayhawks or Boilermakers with a trip to the Final Four on the line.

Gonzaga 61, West Virginia 58

It wasn't pretty, but the Bulldogs are moving on to the Elite Eight after the Mountaineers failed to fire off a last-gasp three-point attempt on a frenzied final possession: 

Gonzaga received 13 points apiece from Jordan Mathews, Przemek Karnowski and Johnathan Williams in the win, and it was Mathews who played hero when he drilled a go-ahead triple with just under a minute remaining: 

As a team, Gonzaga shot 40.9 percent from the field and 40 percent from three, marks that were just good enough to slip past a WVU team that had no consistent scoring beyond Jevon Carter (21 points). 

As a team, the Mountaineers shot 26.7 percent from the field and 21.7 percent from three as all players not named Carter combined to make 10 field goals. 

By virtue of the win, the Bulldogs are headed to the Elite Eight for the third time in school history, according to ESPN Stats & Info. 

Kansas 98, Purdue 66

After back-to-back nail-biters featuring Oregon and Gonzaga, the Jayhawks emphatically dispatched the Boilermakers 98-66 to set up a regional final date with the Ducks. 

Frank Mason III shredded the Boilermakers' defense throughout, and he finished with a full line consisting of 26 points (9-of-11 shooting), seven boards and seven assists. 

Devonte' Graham was similarly stellar and posted 26 points on 7-of-15 shooting, including 5-of-9 from three. 

Not to be forgotten, Josh Jackson flashed his tantalizing two-way upside once again to the tune of 15 points, 12 rebounds and four steals. 

Caleb Swanigan paced Purdue with 18 points, but the Boilermakers didn’t have nearly enough firepower to keep pace with the Midwest’s No. 1 seed on a night when they committed 16 turnovers and were bested 11-7 on the offensive glass. 

Xavier 73, Arizona 71

Xavier's Cinderella story isn't over yet. 

In a thriller that came down to the last possession, the Musketeers held off the Wildcats when Allonzo Trier's look at a game-winning three rimmed out before the West's No. 11 seed dribbled out the clock to cap off the tournament's most unlikely upset yet. 

Sporting News' Sam Vecenie was among those impressed with the Musketeers' resolve as their dream run continued: 

Trevon Bluiett starred for the Musketeers with a team-high 25 points, but it was big man Sean O'Mara who played hero when he deposited the game's decisive bucket with 44.1 seconds to go in regulation, as NCAA March Madness documented on Twitter: 

Now the eighth team in tournament history to qualify for the Elite Eight after being seeded 11th or lower, per ESPN Stats & Info, Xavier will attempt to punch a ticket to the Final Four against the Bulldogs on Saturday. 

Speaking of which, the NCAA announced early Friday morning that Gonzaga and Xavier will start at 6:09 p.m. ET (TBS) Saturday, while Kansas and Oregon will cap off the night's regional final action at 8:49 p.m. ET (TBS).