Waters shot 13 for 14 from the line. Williams also had 13 rebounds.
Nick Stampley had 17 points, 12 rebounds and five blocks for Troy (4-3).
Kam Woods, whose 11.0 points per game coming into the matchup was second on the Trojans, was held to 2 points. He shot 0 of 4 from beyond the arc.
Troy matches up against Auburn on the road on Saturday. Samford takes on Kennesaw State on the road on Saturday.
For more AP college basketball coverage: https://apnews.com/Collegebasketball and http://twitter.com/AP--Top25
This was generated by Automated Insights, http://www.automatedinsights.com/ap, using data from STATS LLC, https://www.stats.com
Prewett talks Auburn basketball, football and her book
Auburn alum and former contestant on "The Bachelor" Madison Prewett discusses the Tigers' football and upcoming basketball seasons, along with her new book.
Old Dominion Monarchs to become 14th member of Sun Belt Conference by July 2023
Old Dominion will join the Sun Belt Conference no later than July 1, 2023, the conference announced Wednesday, which will increase its membership to 14 schools.
New faces for Mizzou has Martin feeling optimistic
Missouri's Cuonzo Martin says he sees plenty of reasons to be enthused about this upcoming season despite only one returning starter.