Leach said Wednesday that all the new recruits had other scholarship offers and that the Cougars did not have to settle for any players with questionable abilities.
Leach said this was the best class in his three recruiting seasons at Washington State.
Bender, 6-foot-1 and 185 pounds, is the 25th-rated pro-style quarterback in the nation. He played for Cardinal Gibbons High School, where he threw for 2,184 yards and 28 touchdowns in 10 games before breaking his collarbone.
National rankings (Rivals 68, Scout 59)
Best in class: Peyton Bender, QB, Fort Lauderdale, Fla. "What I liked best is his best games are ahead of him," Leach said. "He steadily improves."
Best of the rest: Nick Begg, TE, Santa Margarita, Calif.; Squally Canada, RB, Milpitas, Calif.; Calvin Green, WR, Sacramento, Calif.; Deion Singleton, S, Pasco, Wash.
Late addition: "This class had the fewest surprises of any I've been involved in recruiting," Leach said. "This thing was wrapped up by 11 o'clock."
Zaire Andre, wr, 6-0, 170, Inglewood (Calif.) HS
Nick Begg, te, 6-5, 255, Santa Margarita (Calif.) HS
Peyton Bender, qb, 6-1, 185, Cardinal Gibbons HS, Fort Lauderdale, Fla.
Squally Canada, rb, 5-11, 190, Milpitas (Calif.) HS
Jalen Canty, de, 6-8, 270, St. Patrick St. Vincent HS, Vallejo, Calif.
Andre Dillard, ol, 6-5, 250, Woodinville (Wash.) HS
Brandon Evers, ol, 6-7, 290, Enterprise HS, Redding, Calif.
Kingston Fernandez, buck, 6-3, 240, Kapolei (Hawaii) HS
Calvin Green, wr, 5-10, 165, Burbank HS, Sacramento, Calif.
Kevin Griffin, cb, 6-1, 180, De La Salle HS, Concord, Calif.
Dylan Hanser, lb, 6-5, 215, Central Catholic HS, Billings, Mont.
Keith Harrington, wr, 5-9, 180, Northeast HS, St. Petersburg, Fla.
Greg Hoyd, lb, 6-2, 215, Vista Murrieta HS, Murrieta, Calif.
Sean Krepsz, ol, 6-5, 295, King HS, Riverside, Calif.
Frankie Luvu, lb, 6-2, 215, Tafuna HS, Pago Pago, American Samoa
Hercules Mata'afa, de, 6-3, 230, Lahainaluna HS, Lahaina, Hawaii
Marcellus Pippins, cb, 5-11, 175, El Cerrito (Calif.) HS
Patrick Porter, cb, 6-0, 170, Bryant HS, Cottondale, Ala.
Markell Sanders, s, 6-1, 175, Eastside Catholic HS, Sammamish, Wash.
Deion Singleton, s, 6-1, 175, Chiawana HS, Pasco, Wash.
Ngalu Tapa, dt, 6-3, 275, Burbank HS, Sacramento, Calif.
Barry Ware, wr, 6-3, 205, Centennial HS, Corona, Calif.