On October 31, 2003, the San Francisco Giants signed Joaquín as an amateur free agent. His first professional experience came with the Dominican Summer League Giants in 2004; in 14 games (13 starts), he had six wins and a 1.61 earned run average (ERA). He pitched for the Arizona League Giants in 2005, posting a 1–1 record with a 3.64 ERA, 37 strikeouts, and 10 walks in ​29 2⁄3 innings. He did not play in 2006 due to surgery on his right elbow, but he returned in 2007, for the Salem-Keizer Volcanoes of the Single-A (short season) Northwest League, with whom he went 3–0 with a 2.84 ERA, 30 strikeouts, and 16 walks in 38 innings.\n', '

In 2008, Joaquín played for the Single-A Augusta GreenJackets of the South Atlantic League and the Single-A advanced San Jose Giants of the California League. He was had a combined 1–3 with a 4.42 ERA in ​71 1⁄3 innings over 36 games (seven starts).\n', '

Joaquín began 2009 with the Double-A Connecticut Defenders of the Eastern League. He had a 4–5 record, a 2.67 ERA, 40 strikeouts, and 28 walks in 54 innings pitched. On August 1, Joaquín was called up to the Giants\' bullpen; he replaced Ryan Sadowski on the roster. He made his Major League debut on August 4, giving up one run on two hits in pitching the ninth inning in an 8–1 win over the Houston Astros. He was optioned to the minors the next day to make room for Joe Martinez on the roster. Joaquín spent the rest of the minor league season with the Triple-A Fresno Grizzlies of the Pacific Coast League; in eight games, he had a 1–0 record, an 0.00 ERA, 16 strikeouts, and two walks in 10 innings pitched. He was called up again on September 1 when rosters expanded, and he made nine more appearances for the Giants that year. In 10 games with the Giants, Joaquín had no record, a 4.22 ERA, 12 strikeouts, and seven walks in ​10 2⁄3 innings pitched.\n', '

Return to Waldis Joaquin Autograph Profile