Michigan State entered its showdown with Michigan in Ann Arbor sitting seventh in the Associated Press Poll and fourth in the AMWAY Coaches' Poll.
After coming away with one of the most improbable victories in series history, Michigan State maintained its spots in each poll as it prepares to try to move to 8-0 next weekend when Indiana comes calling.
The Spartans received 1,202 points in the AP Poll and sit 50 points behind No. 6 Clemson as Ohio State, Baylor, Utah, TCU and LSU round out the top five.
After beating Northwestern 40-10 to improve to 7-0, Iowa is up to No. 12 while Michigan is tied with Texas A&M at No. 15 as the Big Ten has four teams ranked in the AP Top 25.
Michigan State remained at No. 4 in the coaches' poll as the Buckeyes, Bears and Horned Frogs all held their spots from a week ago, as well.
With their 1,334 points, the Spartans are 10 points ahead of No. 5 LSU and sit 83 points in back of third-ranked TCU.
After their 27-23 loss to the Spartans - courtesy of Watts-Jackson's heroics, the Wolverines dropped from No. 14 to a tie with Memphis at No. 17 while the Hawkeyes jumped four spots to No. 13.
As with the AP Poll, Ohio State, Michigan State, Iowa and Michigan are the four Big Ten representatives in the coaches' poll.