Choosing the University of Hawaii baseball team’s starting-pitching rotation can be as easy as 1-2-3.

Brendan Hornung, Dominic DeMiero and Neil Uskali have secured spots, but the Rainbow Warriors are seeking another starter for this week’s four-game series against San Francisco. When asked about the top candidate for Sunday’s series finale, UH coach Mike Trapasso said, “everybody.”

Carter Loewen, a hard-throwing right-hander, is not a consideration. He will undergo surgery Friday for a season-ending labrum injury.

While Hornung, DeMiero and Uskali pitched well against North Carolina State last weekend, Trapasso regretted “there were guys who didn’t get to pitch or didn’t get to pitch much.” Eight pitchers were used in relief that series.

Trapasso said he planned since January for the starting pitchers to enter this four-game series on five days’ rest. For Hornung, who pitched Friday and will open against the Dons on Thursday, the timing is ideal. He said he does not have any classes on Thursday.

“I get to kick back until game time,” Hornung said.

Against NC State, Hornung had command of his four pitches. His changeup or split-fingered fastball finished eight of his nine strikeouts. He also threw first-pitch strikes to 22 of 28 batters he faced. Because the Wolfpack are used to facing power pitchers, Hornung said, “we went with off-speed a lot to catch them off-guard.”

DeMiero relied heavily on a changeup in allowing one run in seven innings for the ’Bows’ lone victory. DeMiero said he began throwing a changeup when he was 8 as an out pitch that would cause less arm stress than a slider or curveball. He has kept that grip — with his thumb and index finger creating a circle — through high school and junior college.

“It’s whatever works best for you, and what works best for me is the circle change,” DeMiero said. “It’s something you’ve got to have confidence in because you know if you don’t throw it right, it’ll be a home run or at least a hard-hit baseball.”

Uskali and Jackson Rees were competing for the third spot against NC State. But Trapasso decided Uskali’s changeup would create more problems for the Pack’s aggressive lineup. Uskali allowed two runs — one earned — in five innings.

“I’ve been working on (the changeup), throwing it every day,” Uskali said.

Uskali was able to get back on the pitching timetable despite suffering from severe flu-like symptoms early in preseason training.

“I lost 11 pounds,” Uskali said. “I had this three-day flu. It was a terrible three days. I got sick about 12 times a day, and I had to go to the hospital. It was a rough three days, for sure, but I’m definitely feeling a lot better now.”