Track Cal Poly San Luis Obispo Baseball Players in the MLB

Cal Poly San Luis Obispo alumni are currently active in the Major League Baseball.

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Cal Poly San Luis Obispo Baseball Players in the MLB - Statistics

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Cal Poly San Luis Obispo players didn't have any games on Saturday, October 3, 2026

Weekly Roundup

Brooks Lee Is Making a Statement Down the Stretch

Cal Poly's most prominent MLB product is ending the 2026 season with something to prove — and the numbers are backing him up.

Minnesota Twins shortstop Brooks Lee put together one of his better weeks of the season, collecting hits in multiple games across a stretch that included a series against the Giants and a doubleheader split with the Angels. The highlights: a three-hit, three-run performance in the first game of Sunday's doubleheader against the Angels on September 20, a home run on Tuesday against San Francisco, and a two-hit, RBI outing in the second game of Wednesday's twin bill against the Giants. Lee carried a .255 average through midweek before settling at .253 by Saturday — a week's worth of at-bats that underscored his ability to sustain contact production in the final weeks of a long season.

The timing dovetails neatly with a Sports Illustrated feature that examined what's changed for Lee in the second half of 2026 — and what still needs work. The piece credits Lee with addressing a key mechanical weakness that had hampered his early-season production, and notes his sustained output as evidence the adjustment is real. But the story doesn't let him off easy: SI flags that Lee still has room to grow against left-handed pitching and certain pitch types, calling them the final frontier between his current trajectory and a higher ceiling as a major-league regular. For a 24-year-old shortstop with Lee's pedigree — he was the second overall pick in the 2022 draft — the floor is already high. The question SI is asking is how much higher the ceiling gets.


Alvarez and Woo Finish Seasons on the Mound

Two other Cal Poly arms saw action this week in different circumstances.

Andrew Alvarez, pitching for the Washington Nationals, delivered a quality start on Friday night against the Mets — 4.2 innings, seven strikeouts, and a 7-6 Nationals win in a game that required every bit of the offense CJ Abrams and Dylan Crews provided. Alvarez gave up five earned runs, keeping his ERA at 3.43 for the season. It was a mixed bag — the strikeout total was impressive, the run prevention less so — but the Nationals walked away with the victory.

In Seattle, Bryan Woo took the hill for the Mariners against the Angels on Friday in what SI previewed as a key end-of-season matchup. Woo logged 5.1 innings, struck out eight, and gave up four earned runs in a 6-4 Mariners loss, pushing his ERA to 4.01. It wasn't the finish Woo or Seattle would have wanted, but eight punchouts in a losing effort is a reminder of why the Mariners have invested in the Cal Poly product.


The Cal Poly Alumni Snapshot

This week reinforced the range of Cal Poly's MLB footprint: a rising middle-of-the-lineup shortstop in Lee, a pair of arms in Alvarez and Woo logging meaningful late-season innings, and a roster that stretches from the Bronx to the Pacific Northwest. With Lee's strong September serving as the week's headline story, the Mustangs' MLB contingent is closing out 2026 with plenty to build on heading into the offseason.

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Cal Poly San Luis Obispo MLB FAQ

How many Cal Poly San Luis Obispo alumni are currently in the MLB?

5 Cal Poly San Luis Obispo alumni are currently active in the Major League Baseball.

Which Cal Poly San Luis Obispo alumni play in the MLB?

Recently active players include Mitch Haniger, Bryan Woo, and Ryan Stafford. See above for the full list of current Cal Poly San Luis Obispo alumni in the MLB.

What MLB teams have Cal Poly San Luis Obispo alumni?

Cal Poly San Luis Obispo alumni currently play for Mariners, Orioles, White Sox, Nationals, Guardians, Braves, Yankees, Rangers, and Twins.