Ali had four assists and four steals, made 10 of 11 from the line and was 4 of 7 from beyond the arc as the Islanders (9-3) made 7 of 19 from deep. Thomas was 10 of 15 from the floor and grabbed eight rebounds.
Corpus Christi led 38-33 at the break, but a six-point spurt by the Governors tied it at 44. The Islanders used an 8-2 to turn a four-point lead into nine, but Davis' 3-point play trimmed it back to two with 3:40 to go.
Texas A&M-CC responded with an 8-2 run, including a 3-pointer by Jelani Currie, to ice it.