MANHEIM, Pennsylvania —  The top six teams remained the same after the first two weeks of NCAA Division I wrestling competition in the USA Today/NWCA Division I Coaches Poll released on Tuesday.

Penn State (2-0) again received all 16 first-place votes to remain the unanimous No. 1 team in the country, while second-ranked Ohio State (1-0) maintained its position after a solid 31-12 victory over then-No. 11 Arizona State (0-2) over the weekend.

RELATED: Full college wresling standings

Third-ranked Oklahoma State (1-0) opened with a 25-9 win over then-No. 22 North Carolina, while fourth-ranked Michigan also beat Arizona State 21-18. Missouri (4-0) opened with a 20-17 win over No. 14 Illinois (0-1) in a dual held outdoors at the Mizzou Softball Stadium. Missouri blanked three non-Division I opponents on Sunday at home.

Only minor shifts occurred in this week’s Top 25 with Iowa (0-0) and NC State (3-0) flip-flopping at No. 7 and No. 8, while Rutgers (3-0) jumped over Arizona State to No. 11. Oklahoma (1-2) slid one spot to No. 19, while Purdue (3-0) jumped into the poll at No. 22. The Boilermakers are coming off a strong 31-6 dual victory over then-No. 22 North Carolina at Saturday’s Journeymen/MyHouse Northeast Duals in Clifton Park, New York.

Other ranked duals saw NC State beat Oklahoma 27-13, Virginia Tech over Stanford 22-12 and Rutgers over Oklahoma 22-9.