Five-star quarterback Jarrett Stidham has decommitted from Texas Tech.

The Stephenville senior had been a large part of the Red Raiders' 2015 recruiting class, which drops from No. 29 to No. 46 without him. He is the No. 3 dual-threat quarterback and the No. 26 player overall, according to 247Sports’ Composite Rating.

“I want to say thank you to Texas Tech University for giving me the opportunity to play football and get a degree from there, but I have officially decided to decommit for various reasons,” Stidham wrote on Twitter. “Thank you to everyone that has been involved.”

Stidham committed to Tech on March 7, picking the Red Raiders over offers from Alabama, Auburn, Baylor, Notre Dame, Ohio State, Oklahoma and Oregon, among many others. He didn’t announce whether he’d reconsider Tech or other schools he was considering.

His 247Sports Crystal Ball reads 83 percent in favor of Tech, while Baylor has 13 percent of the votes and Texas A&M three percent.

He removed any mention of Tech in his Twitter bio during this week. Stidham also visited Baylor last Saturday, when the Bears played Kansas State, and had an in-home visit Wednesday, according to BearsTruth, the Baylor 247 site.

A source close to the situation says Stidham's decommitment revolves around whether he'd redshirt his freshman year or play immediately. Efforts to contact Stidham were unsuccessful.

Red Raiders head coach Kliff Kingsbury said the quarterback competition in spring workouts would be “wide open” between Stidham, who was set to enroll at Tech in January, Patrick Mahomes, Davis Webb, walk-on Vincent Testaverde and Nic Shimonek.

Kingsbury and offensive coordinator Eric Morris made an in-home visit with Stidham on Sunday. A Tech athletics spokesman said Kingsbury wouldn't comment on Stidham's decision.

“It was kind of shocking,” Red Raiders wide receiver commit Quan Shorts said. “I didn’t think he was going to decommit after being committed this year. I want to know the full story.”

Added running back commit Corey Dauphine, who said he first heard Saturday morning about the possibility of Stidham decommitting: “I was shocked, but I knew it was coming. I was shocked when he made it final.”

Both said their commitments to Tech are firm despite losing Stidham.

Mahomes finished this season well, throwing for more than 1,300 yards and 14 touchdowns against two interceptions in his last 3 1/2 games. Webb is undergoing left shoulder surgery but is expected to be ready for spring workouts.

The 6-foot-3, 190-pound Stidham completed 183 of 260 passes (70 percent) for 35 touchdowns and 2,934 yards and rushed 122 times for 969 yards (6.9 yards per carry) and 15 touchdowns this season. He played 10 games and five plays of another before suffering a broken right hand.

He threw for 5,633 passing yards and 66 touchdowns, rushed for 1,818 yards and 31 touchdowns and caught 50 passes for 819 yards and 11 touchdowns while at Stephenville.