From the town of Aguas Benditas-Chilibre, Panama, Corpas was signed by the Colorado Rockies at the age of 16 as an amateur free agent in 1999. He made his debut for the Rockies on July 18, 2006.
Following the All-Star Break in 2007, Corpas filled in as closer for Brian Fuentes, who was demoted after taking four of eight losses during an 8-game losing skid. Corpas finished the year with a 4–2 win–loss record, a 2.08 earned run average, and 19 saves in 22 chances; he continued to serve as the Rockies' closer during the 2007 postseason.
He continued as the closer into the 2008 season. However, after a number of poor outings, he was replaced by Fuentes in late April.[1] In 2008, he tied for the major league lead in blown saves, with 9.[1]
During 2009 spring training, he competed with Huston Street for the closer spot; Street won the position and Corpas started the season as the eighth inning set up pitcher.[2] After poor performances by Street, Corpas was renamed the closer on April 17;[3] however, Corpas also pitched poorly, and the closer job was given back to Street on May 1.[4] He was released on November 16, 2010.
Texas Rangers
On May 3, 2011, Corpas signed a minor league contract with the Texas Rangers. He became a free agent following the season on November 2.
Chicago Cubs
On December 22, 2011, After missing the entire 2011 season due to Tommy John surgery, Corpas signed a one-year deal with the Chicago Cubs.[5]
After being outrighted off of the Cubs' 40-man roster, Corpas elected free agency. Corpas had a 5.01 ERA and 46+2⁄3 innings in 48 games.[6]
Second stint with the Colorado Rockies
On January 9, 2013, Corpas signed a minor league contract with the Rockies.[7] His contract was purchased from Colorado Springs (PCL) on June 2, 2013.[8] He was outrighted off the roster and elected free agency October 17, 2013. Corpas rejoined the Rockies for the 2014 season, agreeing to a minor league contract.[9] On July 13, 2014, Corpas was released by the Rockies.[10]
On July 15, 2015, Corpas was traded to the Guerreros de Oaxaca of the Mexican Baseball League. He was released on February 17, 2016. In 17 games 20.1 innings of relief he went 3-1 with a 3.54 ERA with 13 strikeouts and 4 saves.
York Revolution
On June 19, 2016, Corpas signed with the York Revolution of the Atlantic League of Professional Baseball. He became a free agent after the 2016 season where he appeared in 34 games 33 innings of relief going 3-1 with a 2.18 ERA with 27 strikeouts. He resigned on May 13, 2017, but was released on June 16 after appearing in 12 games 8.2 innings of relief going 1-0 with a 6.23 ERA and 8 strikeouts.
On May 1, 2018, Corpas signed with the Algodoneros de Unión Laguna of the Mexican Baseball League. He became a free agent after the season. In 29 games 30.1 innings of relief he went 3-3 with a 4.75 ERA with 15 strikeouts and 2 saves.
Bakersfield Train Robbers
Corpas appeared in 1 game of relief throwing 3 innings giving up 4 hits 1 earned run (3.00 ERA) and 5 strikeouts with the Bakersfield Train Robbers of the Pecos League.
Milwaukee Milkmen
On August 14, 2019, Corpas signed with the Milwaukee Milkmen of the American Association. He was released on January 16, 2020. In 9 games 11.2 innings of relief he went 1-0 with a 4.63 ERA and 7 strikeouts.
On January 12, 2021, Corpas announced his retirement from professional baseball.[11]
On February 23, 2022, Corpas signed with the Martinez Sturgeon of the Pecos League as both a player and their field manager.[14] He finished the season 9-3 with a 4.26 ERA in 114 innings pitched and 147 strikeouts.[15] Corpas was not retained for the 2023 season.[16]