March Madness 2018: Updated NCAA Tournament odds, betting lines for second round

Saturday and Sunday's second-round NCAA Tournament games provide an opportunity to make up for any disappointments from the first two days of March Madness.

The Las Vegas oddsmakers' lines for the conclusion of the first weekend's action are coming in. The smaller the spread number the more likely a chance of an upset.

See below for the betting lines of each opening round games, via VegasInsider.com .

NCAA Tournament odds: Second-round betting lines

Saturday, March 17

Rhode Island vs. Duke (-9.5)

Loyola-Chicago vs. Tennessee (-6)

Ohio State vs. Gonzaga (-3)

Seton Hall vs. Kansas (-4.5)

Alabama vs. Villanova (-10.5)

Buffalo vs. Kentucky (-7.5)

Houston vs. Michigan (-3)

Florida vs. Texas Tech (-2)

Sunday, March 18

Texas A&M v.s North Carolina (-6)

Butler vs. Purdue (-3.5)

Nevada vs. Cincinnati (-7)

Marshall vs. West Virginia (-11.5)

UMBC vs. Kansas State (-12)

Syracuse vs. Michigan State (-9)

Florida State vs. Xavier (-5)

Clemson vs. Auburn (-1)

Lines updated Saturday, March 17 at 9:40 a.m. ET. Sunday lines will be updated when posted.