After capping off a stellar regular season, Brandon advanced to the Western Conference final with a 66-47 home victory over Robinson.
It will face Durant (18-5), who posted a narrow 69-65 win over Sickles (14-7), in the championship game at 8 p.m. today. Sickles and Robinson play at 6 p.m.
The Eagles (20-1) scored the first, last and most of the baskets in between in a game in which they led from the opening tip and weren't seriously challenged.
The Eagles opened a 16-2 lead with 1:50 left in the opening quarter when Marcia Alvarado, who led all scorers with 19 points, dropped one of her two three-pointers.
At the end of the first quarter, Brandon led 20-6 with half a dozen players having scored.
Midway through the second quarter, Robinson (13-9) seemed to gain some momentum after Megana Watts and Lynette Miller buried three-pointers to cut the lead to 26-18.
But Rosanna Davis answered for Brandon with a three of her own with 4:11 left in the half. Despite outscoring Brandon 18-15 in the second quarter, Robinson trailed 35-24 at the half and remained stymied by the Eagles' relentless defense, which produced numerous fastbreak points.
"We win games with our defense," Brandon coach Joe Brown said. "It may not be pretty to watch, but we win games that way."
After trading buckets at the beginning of the second half, Brandon surged behind the inside presence of Davis, Courtney Kearse and Renisha Brown.
All three contributed with points in the third quarter, with Brown and Davis making trips to the free-throw line. The Eagles were 11-for-21 from the line, with Davis and Brown attempting 15 of those free throws.
Brown said he was eager to see the matchup of his forwards against the quick guard play of Durant in the title game.
"They've got excellent guards, and we have good guard play as well," he said. "But I think we may have an edge with our three good low-post players."