Arizona escaped in its last game after catching a break at the end of regulation.
Utah wasn't as fortunate in its overtime contest last time out.
These teams had differing results in their conference openers, and the unbeaten and third-ranked Wildcats look to continue their best start in 80 years Saturday when they meet a Runnin' Utes team still in search of its first-ever Pac-12 road victory.
Arizona (13-0, 1-0) trailed by 16 with 12:40 to go in regulation before using a 10-2 run to force overtime in a 92-83 win over Colorado on Thursday.
The game nearly didn't get to overtime. The Buffaloes' Sabatino Chen banked in a 3-pointer as time expired, but officials waved it off after reviewing the video.
"We would have gotten what we deserved if we had lost,'' coach Sean Miller said.
Utah (8-5, 0-1), meanwhile, fell 55-54 in overtime at Arizona State on Wednesday. The Utes failed to convert on four potential go-ahead shots in the final 12 seconds.
A late 3-pointer helped dashed Utah's hopes, as Sun Devils guard Jahii Carson - a 29.8 percent shooter from long range - hit a tying 3 with 61 seconds left in regulation.
"That's what you try to do on the road; you put yourself in a position to win," coach Larry Krystkowiak said. "Obviously we got that lead late and then there was that 3 by Carson late to tie it up before it went to overtime. I mean that's what you want him doing and I'm somewhat speechless, what can you say?"
Utah fell to 0-10 in Pac-12 road games since joining the conference last season.
Arizona, off to its best start since the 1932-33 team began 16-0, has gotten used to tight finishes.
The Wildcats scored the final seven points in a 65-64 home win over then-No. 5 Florida on Dec. 15, then captured the Diamond Head Classic in Hawaii 10 days later with a 68-67 victory over then-No. 17 San Diego State when Nick Johnson blocked a layup attempt by the Aztecs' Chase Tapley in the closing seconds.
Arizona would prefer to not need late heroics.
"We're getting lucky right now but it won't be there forever," forward Kevin Parrom said.
Xavier transfer Mark Lyons scored 24 points in his Pac-12 debut for the Wildcats. Arizona finished with a 44-33 rebounding advantage as Parrom and Solomon Hill each grabbed eight.
The Wildcats' frontcourt could be tested after the Utes outrebounded the Sun Devils 44-39. Senior center Jason Washburn grabbed 18 - eight more than his previous career high - and freshman forward Jordan Loveridge added 11.
Washburn scored a season-high 19 points, although he had two of the misses in the final seconds.
"Wash was tremendous," Krystkowiak said. "He was locked in tonight for us offensively from the beginning. He did a great job defensively and would have loved to see the exclamation point there at the end and win the game."
Washburn averaged 14.5 points to lead Utah last season in two defeats against Arizona, which rallied from an eight-point halftime deficit in a 70-61 home win Feb. 11.