Son of Mark and Debbie Mazur, and he has two older brothers, Brandon and Josh. Brandon played collegiate baseball at Grand View University in Des Moines, Iowa...Went to Woodbury High School (Minn.), where he was an all-state selection as a senior and a finalist for the Minnesota Mr. Baseball Award as a prep senior. Played shortstop when he did not pitch, and he batted .377 with a home run, five doubles and 40 RBI. His 75 strikeouts in 2018 were the third-most in the state of Minnesota, and he helped lead his team to two conference titles and two state appearances, finishing third and fourth. Was also a four-year basketball and two-year football letter-winner...Teammate Max Meyer also attended Woodbury HS...Attended South Dakota State University from 2020-21, where he went 3-9 with a 5.50 ERA over 16 starts in two seasons as the Jacks’ No. 1 starter...Transferred to the University of Iowa in 2022, and after being selected by the Padres in the second round (53rd pick) of the 2022 First-Year Player Draft, he became Iowa’s highest draft pick since 1990...In 2022, was named Collegiate Baseball Second-Team All-American, ABCA/Rawlings Third-Team All-American, ABCA/Rawlings First-Team All-Midwest Region honoree, Big Ten Pitcher of the Year, First-Team All-Big Ten selection and two-time Big Ten Pitcher of the Week (Feb. 23 and March 2)...Majored in interdepartmental studies at Iowa...Pitched for the Wareham Gateman in the Cape Cod League in the summer of 2021, where he was named to the Cape Cod All-League Team after going 3-0 with a 1.55 ERA in six starts with 34 strikeouts (to six walks) in 29 innings...Enjoys fishing, golfing and spending time with his family.
2025
Made six starts at the Major League level with Miami, going 0-4 with a 4.80 ERA (16 ER/60 IP over two stints (June 18-19 and Aug. 28-Sept. 22) with the club...Recalled from Triple-A Jacksonville on June 18 and made Marlins debut vs. Philadelphia...Tossed one quality start for the Marlins on Sept. 14 vs. Detroit (6 IP, one H, two R/0 ER, two BB, four K)...Collected a season-high five strikeouts two times (June 18 vs. PHI and Sept. 2 at WSH)...In four starts in September for the Marlins, went 0-3 with a 4.43 ERA (10 ER/20.1 IP), 24 hits (three home runs), seven walks and 12 strikeouts...Limited right-handed hitters to a .245/.305/.321 (13-for-53) offensive slash line with four doubles, five RBI, five walks and 10 strikeouts...Led Triple-A Jacksonville with 19 games started, 107.1 innings pitched and 100 strikeouts while producing a 6-7 record with a 4.36 ERA (52 ER/107.1 IP), 109 hits (21 home runs) and 30 walks...Totaled 22 appearances (19 starts), posting a 4.73 ERA (seven ER/13.1 IP) in three relief outings (April 13, June 29 and July 27). Each outing was at least 4.1 innings...His 28 strikeouts in the month of June were his most in any month during the season and led the Jumbo Shrimp staff...Struck out a season-high nine batters over 4.2 innings on June 11 at Triple-A Rochester...Started and won the series-clinching Game 3 of the International League Championship Series for Triple-A Jacksonville over Scranton/WB (7-4) (5.0 IP, three H, 0 R/ER, two BB, three K).
2024
Earned his first Major League Spring Training invite with the Padres...Entered the season as the No. 10 prospect in the Padres farm system by MLB Pipeline and Baseball America, and the fifth-highest pitching prospect for SD by both outlets...Started the campaign at Double-A San Antonio, going 3-1 with a 1.95 ERA (7 ER/32.1 IP) with five walks against 32 strikeouts, holding opponents to a .202 AVG. Was promoted to Triple-A El Paso in mid May and made his Triple-A debut on May 14 at Las Vegas...Made his Major League debut on June 4 at LAA with the Padres, allowing just one run on two hits over six innings pitched in his first career start. Walked four and struck out two...Totaled eight starts over three stints: June 4-20, June 24-July 10, and July 26-27...In the Majors, went 1-3 with a 7.49 ERA (28 ER/33.2 IP) with 21 walks and 22 strikeouts. Left-handed batters hit .329 (24x73) against him with 11 XBH, while right-handed batters hit .267 (16x60) with seven XBH...Was acquired by Miami from San Diego with LHP Robby Snelling, INF Jay Beshears, and INF Graham Pauley in exchange for LHP Tanner Scott and RHP Bryan Hoeing on July 30 and was assigned to Triple-A Jacksonville...In his first month with the Marlins organization, went 2-1 with a 3.81 ERA (11 ER/26.0 IP) in five starts at Triple-A Jacksonville with two walks against 24 strikeouts...Earned International League Pitcher of the Week for the week of Aug. 25, tossing six innings of shutout ball while allowing just one hit on Aug. 21 at Triple-A Nashville...Combined to go 2-3 with a 5.21 ERA (22 ER/38.0 IP) in eight starts with Triple-A Jacksonville from Aug. 3-Sept. 18 and 3-6 with a 6.20 ERA in 13 starts at the Triple-A level between Miami and San Diego...Finished the season ranked as Miami’s No. 11 prospect per MLB Pipeline. Was also tabbed as having the Best Control in the organization by Baseball America.
2023
Split his first professional season between Single-A Fort Wayne and Double-A San Antonio, posting a 6-4 record with a 2.81 ERA (30 ER, 96.0 IP) in 24 appearances (18 starts)... logged 90 strikeouts between the two clubs against just 17 walks allowed...Entered 2023 ranked by MLB Pipeline as the Padres' No. 8 overall prospect and their 5th-highest ranked pitching prospect...Began the campaign with FW, making his debut on April 8 @ West Michigan, going 3.0 scoreless innings with one hit allowed...received his first professional win on June 7 @ Quad Cities...Made 12 total appearances with FW (11 starts), owning a 2.02 ERA (13 ER, 58.0 IP)...had a 1.03 WHIP with the TinCaps, holding opponents to a .227 average... Struck out 47 batters with FW and allowed 10 walks...also allowed just two home runs in 230 batters faced...Had his best month in May, owning a 0.95 ERA (2 ER, 19.0 IP) in four appearances (three starts)...With the TinCaps, right-handed hitters batted just .173 (13- for-75) against him...lefties hit .255 (37-for-145)...Earned a promotion to SA on July 14, making his Double-A debut on July 16 vs. Northwest Arkansas...worked 2.0 innings in relief with one run allowed...Made 12 overall appearances with SA (7 starts) to end his first season, going 2-3 with a 4.03 ERA (17 ER, 38.0 IP) with the Missions...Opponents hit .303 (47-for-156) against him at the Double-A level...righties hit .237 (25-for-63) and lefties hit .397 (25-for63)...Appeared in one Postseason game for SA on Sept. 22 @ Amarillo, getting the start and also being saddled with the loss in the Missions' season-ending game (five hits and four ER allowed in 4.0 IP)...began the game tossing 3.0 scoreless frames, allowing all four runs in the fourth inning.
