National Signing Day arrived with major momentum for Missouri baseball, as head coach Kerrick Jackson and the Tigers officially welcomed five cornerstone signees in the Class of 2027.

Anchored by four elite in-state commitments and a top out-of-state backstop, the class highlights Mizzou’s commitment to keeping Missouri’s premier talent in-state while expanding its recruiting footprint into key areas.

A long-time anchor of Mizzou’s 2027 recruiting class, Stieferman made his pledge to the Tigers early in his high school career. Ranked as a top-five overall prospect in the state of Missouri, the 6-foot-1 left-handed pitcher, first baseman and outfielder brings elite three-way potential right down US-63 from Jefferson City.

Featuring a high-velocity arm on the mound and a powerful left-handed swing at the plate, Stieferman gives the Tigers a marquee arm and impact bat with deep mid-Missouri roots. Stieferman plans to graduate from Capital High School, where he will then make his way to Columbia.

Mizzou kept another top-tier Missouri arm home with the signing of Warrenton right-handed pitcher and shortstop Carter Martin. Regarded as one of the state’s premier pitching prospects, the 6-foot-1 righty built an elite high school resume with his high-octane fastball.

After helping anchor Warrenton High School’s rotation and making a strong impression on the summer circuit, Martin’s decision to stay in-state adds raw projectable depth to the Tigers’ future pitching staff.

Adding to a heavy emphasis on high-leverage pitching, Lafayette High School standout Michael Sinn officially committed to the Tigers. Noted as one of the top left-handed pitchers in the state, the Wildwood native committed to Mizzou last fall following a breakout prep campaign. Known for his deceptive delivery, movement and ability to miss bats, Sinn will provide Mizzou with another arm for SEC play.

Reaching down into Florida to lock up a key positional need, Mizzou signed elite catcher Seamus Moylan out of Ormond Beach. The Spruce Creek High School catcher gives the Tigers a sturdy defensive presence behind the plate, pairing strong receiving skills and an accurate arm with a productive bat. Moylan’s decision to head north to Columbia will provide Mizzou’s catchers’ room with high-level out-of-state competition.

Further strengthening Mizzou’s commitment to securing premier Missouri talent, multi-positional standout Beckett York officially joined the Tigers squad. Hailing from Lebanon High School, the 6-foot left-handed hitter brings exceptional athletic versatility to Columbia as a primary shortstop who hit over .500 during his prep season while boasting tools to catch and pitch. Flashing 102+ mph exit velocity off the bat alongside a 90 mph infield arm, York gives head coach Kerrick Jackson a dynamic utility weapon for Mizzou’s SEC roster.

With the addition of Stieferman, Martin, Sinn, York and Moylan, Mizzou’s 2027 haul sets up a firm new foundation built on power arms, versatile talent and strong home-state pride as the Tigers continue building for their future in the SEC.