IOWA CITY, Iowa (AP) -- One of the big questions Iowa had entering the season was where the Hawkeyes would get their scoring.
Though it's still early, freshman guard Anthony Tucker has provided an answer.
Tucker scored 19 points -- including a critical 3 with 1:45 left -- and Iowa hung on to beat Oakland 66-57 Sunday night.
Tucker shot 5-of-10 from 3-point range and is averaging a team-high 16.3 points per game, including 43.2 percent from 3-point range.
"If I'm open, if feel like I can make the shot, I'll shoot it," Tucker said.
Jake Kelly added 16 for the Hawkeyes, who pulled away with a late 9-0 run and picked up their fourth straight win.
Drew Maynard hit a wide-open 3 to cut Iowa's lead to four with 3:29 left, and Johnathon Jones hit a pair of free throws to make it 53-51. But Jones rimmed out a jumper after Oakland had forced a turnover, and Tucker responded with a 3 that pushed Iowa's lead back to 56-51.
Iowa (4-0) hit six free throws to go up 62-51 with 46 seconds left.
Oakland coach Greg Kampe called Jones's decision to break out of a set play and settle for a jumper "horrible," as the Golden Grizzlies wouldn't get within one possession again.
"I'm very, very disappointed in how the game ended. We had the game exactly where we wanted it. You go into a Big Ten arena and you have to keep it close and try and steal it at the end. We did all that," Kampe said.
Jones had 21 points and Erik Kangas had 18 to lead the Golden Grizzlies (1-3).
Oakland got within 42-41 on a 3 by Kangas midway through the second half. Kelly followed a Cyrus Tate basket with a 3 to push Iowa's lead to 47-41 with 7:30 left, and Tucker buried a long 3 to make it 52-43.
Tate continued his strong play in the post, scoring 11 points and grabbing a game-high 13 rebounds. Tate has taken 22 shots from the field this season, and he's only missed four of them.
"I thought Cyrus was terrific," Iowa coach Todd Lickliter said. "Cyrus has one thing on his mind, and that's helping his team win."
The loss caps a brutal week for the road-weary Golden Grizzlies, who won at Oregon 82-79 on Nov. 17 and lost at Syracuse, 86-66, on Friday night. Oakland, out of the mid-major Summit League, will play at Kansas State on Tuesday.
What's made the trip worse for the Golden Grizzlies is the absence of senior forward Derick Nelson, who is out 4-8 weeks after breaking his foot in practice on Nov. 13.
"If I knew that our top player was going to break his foot the day before we took off on this trip, we wouldn't have made this trip," Kampe said. "We're struggling with that. We're trying to find a way to get baskets on offense in clutch situations."
Though Iowa shot 57 percent from the field in the first half, it committed 11 turnovers. Oakland took the lead briefly late in the half, but 3s from Tucker and Kelly helped the Hawkeyes jump ahead led 30-24 at the break.
Iowa has one more home game against a low-conference opponent on Tuesday when it hosts Southeast Missouri State. Then the Hawkeyes will find out where they're truly at, with games against West Virginia and either Kentucky or Kansas State in Las Vegas followed by a road test at Boston College.
"We better not overlook anything," Lickliter said. "I don't think there will be a game this year that, if we expect to win, we shouldn't also expect to play at a very high level. We'll need to play at a high level."