TAMPA, Fla. — Step one of Cale Coshow's planned itinerary for the 2015 baseball season is complete.

The former Oklahoma Christian standout, who's in his third professional campaign, was promoted last week to the New York Yankees' highest Class A team, the Tampa Yankees of the Florida State League. The promotion came after he enjoyed much early season success with the Class A Charleston RiverDogs.

Coshow, 22, was selected by the Yankees in the 13th round of the 2013 draft out of Oklahoma Christian. In 11 appearances this season with the RiverDogs, the 6-foot-5 right-handed pitcher was a perfect 7-for-7 in save opportunities with a 1.13 ERA. In 16 innings pitched, he gave up two earned runs on 10 hits, walked only four and struck out 20. He held opponents scoreless in 10-of-11 appearances.

Coshow, from Edmond, ranked second in the South Atlantic League in saves before being promoted to Tampa, where he picked up a win in his first appearance, a two-inning stint against the Brevard County Manatees last Saturday. In two appearances so far in Tampa, he's allowed one hit and one unearned run in four innings of work.

He said before the season that his goal for 2015 was to advance to the Double-A level, which in the Yankees' system would be the Trenton Thunder. No former OC player has ever advanced beyond Class A in professional baseball.

After signing with the Yankees in June 2013, Coshow went 0-2 with a 3.76 ERA that summer for the Yankees' short-season Class A affiliate, Staten Island of the New York-Penn League.

He began the 2014 season with Staten Island – throwing three shutout innings in his only appearance – before receiving a promotion to Charleston on June 18. He made six appearances for the RiverDogs, going 1-1 and posting a 5.19 ERA with 13 strikeouts and only one walk in 8 2/3 innings before suffering a shoulder injury. He recorded his first professional win on July 6, in relief against the Rome Braves.

He later pitched in 2014 for the Yankees' Gulf Coast League rookie-league team, starting three games and going 0-1 with a 4.11 ERA and 19 strikeouts in 15 1/3 innings.

Coshow went 2-0 as a freshman at Oklahoma in 2012 before transferring to OC. In 2013, he was one of OC's top starters and went 3-5 with a 4.56 ERA, helping the Eagles win the National Christian College Athletic Association Central Region title and qualify for the NCCAA World Series. In 13 appearances (all starts) for the Eagles, he pitched 73 innings, with 69 strikeouts, 28 walks and two complete games.