Seattle Mariners minor league players

Below is a partial list of minor league baseball players in the Seattle Mariners system.

Players

Charlie Beilenson

Charles Graeme Beilenson (born December 10, 1999) is an American professional baseball pitcher in the Seattle Mariners organization.

Beilenson attended Chaminade College Preparatory School in West Hills, California. He played college baseball at Brown University for two years, and Duke University for two years. He was a consensus All-American his senior year at Duke in 2024. That year, he was 7-3 with 12 saves (tying the Duke single season record, and leading the ACC) and a 2.01 ERA in 34 relief appearances. He pitched 62,2 innings in which he had 92 strikeouts (13.2 strikeouts/0 innings), a .181 batting average against, and an 0.957 WHIP.

Beilenson was selected by the Seattle Mariners in the fifth round of the 2024 Major League Baseball draft. He made his professional debut that year with the Modesto Nuts, pitching 3.2 innings. He pitched in 2025 with the Everett AquaSox and Arkansas Travelers, and started in 2026 with Arkansas.

Beilenson played for the Israel national baseball team at the 2026 World Baseball Classic.

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Josh Caron

Joshua Howard Caron (born August 3, 2003) is an American professional baseball catcher in the Seattle Mariners organization.

Caron attended Sun Prairie High School in Sun Prairie, Wisconsin, where he played baseball. As a senior in 2021, he batted .438 with eight home runs and 49 runs batted in (RBI) and helped lead Sun Prairie to a state championship. After graduating, he enrolled at the University of Nebraska and played three years of college baseball for the Nebraska Cornhuskers. As a junior in 2024, Caron played in 60 games and hit .308 with 16 home runs and 65 RBI.

After his junior season at Nebraska, Caron was selected by the Seattle Mariners in the fourth round of the 2024 Major League Baseball draft. He made his professional debut after signing with the Single-A Modesto Nuts and batted .277 with one home run across 13 games. He played the 2025 season with the High-A Everett AquaSox with whom he won the Northwest League Championship and hit .197 with nine home runs and 26 RBI over 79 games. Caron returned to Everett to open the 2026 season and was promoted to the Double-A Arkansas Travelers in July.

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Felnin Celesten

Felnin Daniel Celesten (born September 15, 2005) is a Dominican professional baseball shortstop in the Seattle Mariners organization. His nickname is El Fénix.

Celestin signed with the Seattle Mariners as an international free agent in January 2023 for $4.7 million. He did not make his professional debut that year due to a hamstring injury he suffered in June.

Celestin made his professional debut in on May 4, 2024 with the Arizona Complex League Mariners. In 32 games, he hit .352 with 3 home runs and 5 stolen bases. He only played once after June 20, and his season ended in early August after he underwent wrist surgery. He was named the 74th best prospect in baseball by MLB.com before the 2025 season. He started 2025 with the Single-A Modesto Nuts.

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Ty Cummings

Ty Brendan Cummings (born November 1, 2001) is an American professional baseball pitcher in the Seattle Mariners organization.

Cummings attended Corinth Holders High School and played college baseball at Campbell University. In 2022, he played collegiate summer baseball with the Bourne Braves of the Cape Cod Baseball League and was named a league all-star. After his junior season, he was selected by the Seattle Mariners in the seventh round of the 2023 Major League Baseball draft. He signed for $225,000.

Cummings made his professional debut in 2024 with the Everett AquaSox. He started 25 games and was 4-5 with a 4.17 ERA and 124 strikeouts over 116+2⁄3 innings. On October 4, 2024, Cummings was traded to the Tampa Bay Rays as the player to be named later in the Randy Arozarena trade. He was assigned to the Montgomery Biscuits to open the 2025 season. He was named the Southern League Pitcher of the Week in April. He also appeared in three games for the Durham Bulls. Over 29 games (20 starts) for the season, Cummings went 8-4 with a 3.29 ERA and 92 strikeouts over 123 innings. Cummings returned to Montgomery to start the 2026 season, now pitching as a reliever, and made three appearances for the team.

On April 24, 2026, the Rays traded Cummings back to the Mariners in exchange for Casey Legumina. The Mariners assigned him to the Arkansas Travelers.

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Taylor Dollard

Taylor Joseph Dollard (born February 17, 1999) is an American professional baseball pitcher in the Seattle Mariners organization.

Dollard attended Crespi Carmelite High School in Encino, Los Angeles, California. As a junior in 2016, he went 2-4 with a 3.38 ERA over 12 appearances. As a senior in 2017, he went 2-0 with a 1.43 ERA and 42 strikeouts over 29+1⁄3 innings. He went not drafted in the 2017 Major League Baseball draft and enrolled at Cal Poly San Luis Obispo to play college baseball.

Dollard made 19 appearance as a freshman at Cal Poly in 2018 and posted a 2.43 ERA. In 2019, his sophomore year, he made 19 relief appearances and went 5-0 with a 2.89 ERA and 48 strikeouts over 43+2⁄3 innings. After the 2019 season, Dollard played collegiate summer baseball in the Cape Cod Baseball League for the Yarmouth-Dennis Red Sox. He made four starts in 2020 before the season was cancelled due to the COVID-19 pandemic. Dollard was selected by the Seattle Mariners in the fifth round of the shortened 2020 Major League Baseball draft with the 137th overall selection. He signed for $406,000.

Dollard made his professional debut in 2021 with the Modesto Nuts and was promoted to the Everett AquaSox in June. Over 19 games (18 starts) between the two teams, he went 9–4 with a 5.14 ERA and 133 strikeouts over 105 innings. He pitched for the Arkansas Travelers in 2022. Over 27 starts, he went 16–2 with a 2.25 ERA and 131 strikeouts over 144 innings. He led the minor leagues in wins.

Dollard was assigned to the Tacoma Rainiers to begin the 2023 season. Dollard made only three starts for Tacoma, logging a 7.56 ERA across 8+1⁄3 innings, before he was placed on the injured list with a shoulder impingement on April 26. On June 27, it was announced that Dollard would undergo labrum surgery and miss the remainder of the season. He did not pitch in 2024. In 2025, Dollard pitched with the Arizona Complex League Mariners and Everett, going 3-4 with a 4.54 ERA over 69+1⁄3 innings.

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Jonny Farmelo

Jonathan Thomas Farmelo (born September 9, 2004) is an American professional baseball outfielder in the Seattle Mariners organization.

Farmelo attended Westfield High School in Fairfax County, Virginia. In high school, he had a .385 batting average, seven home runs, and 29 RBIs in 48 career games. As a senior, Farmelo batted .478. Farmelo committed to play college baseball at the University of Virginia.

Farmelo was selected 29th overall by the Seattle Mariners in the 2023 Major League Baseball draft. He signed with the Mariners on July 17 for an over-slot bonus of $3.2 million.

Farmelo joined the Single-A Modesto Nuts for the 2023 playoffs, playing as an outfielder. He hit .200 in four games, with one triple and one home run. Farmelo returned to Modesto in 2024, but he tore his ACL in mid-June while trying to catch a pop-up, ending his season. In 46 games before the injury, he hit .264 with four home runs and 18 stolen bases. Prior to the 2025 season, Farmelo was named the 96th best prospect in baseball by MLB.com. Farmelo returned to play that May with Everett. In June, he was placed on the injured list with a stress reaction in his rib, and missed over two months before returning to play with Everett in August. Farmelo played a total of 29 games in 2025 and hit .230 with six home runs and 16 RBIs. After the season, he played in the Arizona Fall League with the Peoria Javelinas. Farmelo returned to Everett to open the 2026 season.

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Teddy McGraw

Edward Thomas McGraw (born October 31, 2001) is an American professional baseball pitcher in the Seattle Mariners organization.

McGraw attended Oneonta High School in Oneonta, New York and played college baseball at Wake Forest University. In 2021 and 2022, he played collegiate summer baseball with the Brewster Whitecaps of the Cape Cod Baseball League. He underwent Tommy John surgery prior to his junior year in 2023 and missed the season. Despite the injury he was selected by the Seattle Mariners in the third round of the 2023 Major League Baseball draft.

McGraw made his professional debut in 2024 with the Modesto Nuts, but pitched in only four games due to another arm injury. He again missed the start of the 2025 season, and returned to pitch for the Arizona Complex League Mariners and Everett AquaSox. McGraw was converted into a relief pitcher prior to the 2026 season.

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Michael Morales

Michael Paul Morales (born August 13, 2002) is an American professional baseball pitcher in the Seattle Mariners organization.

Morales attended East Pennsboro High School in East Pennsboro Township, Pennsylvania. He was selected by the Seattle Mariners in the third round of the 2021 Major League Baseball draft. He signed with the Mariners with an overslot $1.5 million signing bonus.

Morales made his professional debut in 2021 with the Arizona Complex League Mariners. He pitched for the Modesto Nuts in 2022 and 2023. In 2022, he led the Nuts with 125 strikeouts in 120+1⁄3 innings, but had a 5–7 record and 5.91 ERA. He started 2024 with the Everett Aquasox before being promoted to the Arkansas Travelers at the beginning of July. Despite the higher competition, he had his best season in the minors, with a 13–2 record and 3.26 ERA in 149 innings.

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Robinson Ortiz

Robinson Stiward Ortiz (born January 4, 2000) is a Dominican professional baseball pitcher for the Seattle Mariners of Major League Baseball (MLB). He is currently a phantom ballplayer, having spent two days on Seattle's active roster without making an appearance.

Ortiz was signed by the Los Angeles Dodgers as an international free agent on June 2, 2017. He was subsequently assigned to their Dominican Summer League affiliate. Ortiz was promoted to the Arizona League Dodgers in 2018 and the Great Lakes Loons in 2019. After not playing in 2020 due to the cancellation of the minor league season as a result of the COVID-19 pandemic, he returned to Great Lakes in 2021. He missed all of the 2022 and 2023 seasons due to injury and returned for only six games in 2024 for the Low-A Rancho Cucamonga Quakes. He began 2025 with Great Lakes but was promoted during the season, first to the Double–A Tulsa Drillers on June 17 and then to the Triple–A Oklahoma City Comets on August 12. Between the three levels, he was 5–2 with a 2.73 ERA in 48 games.

The Dodgers selected Ortiz's contract to their 40-man roster on November 6, 2025, in order to prevent him from reaching minor league free agency. On November 16, the Dodgers traded Ortiz to the Seattle Mariners in exchange for pitcher Tyler Gough. Ortiz was optioned to the Triple-A Tacoma Rainiers to begin the 2026 season. In 15 appearances for Tacoma, he recorded a 1.69 ERA with 18 strikeouts over 16 innings of work. On May 18, 2026, Ortiz was promoted to the major leagues for the first time. He went unused out of the bullpen and was optioned back to Tacoma on May 20, becoming a phantom ballplayer.

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Mason Peters

Mason Ward Peters (born December 18, 2003) is an American professional baseball pitcher in the Seattle Mariners organization.

Peters attended Live Oak Classical School in his hometown of Waco, Texas and played college baseball at Temple College and later transferred to Dallas Baptist University. In 2025, he played collegiate summer baseball with the Chatham Anglers of the Cape Cod Baseball League. He was selected by the Seattle Mariners in the fourth round of the 2025 Major League Baseball draft and signed for $550,000.

Peters made his professional debut in 2026 with the Inland Empire 66ers.

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Nick Raposo

Nicholas Louis Raposo (born June 3, 1998) is an American professional baseball catcher in the Seattle Mariners organization. He is currently a phantom ballplayer, having spent two days on the St. Louis Cardinals' active roster without making an appearance.

On June 15, 2020, Raposo signed a minor league contract with the St. Louis Cardinals after he was not selected in the shortened 2020 Major League Baseball draft.

Raposo made his professional debut in 2021 with the Double-A Springfield Cardinals, hitting .267/.368/.362 with one home run and 12 RBI across 42 games. He returned to Springfield the following season, playing in 59 games and batting .270/.345/.461 with seven home runs and 34 RBI. Raposo split the 2023 campaign between Springfield and the Triple-A Memphis Redbirds. In 40 games between the two teans, he accumulated a .241/.321/.386 batting line with four home runs and 13 RBI. Raposo began the 2024 season with Memphis, hitting .187/.241/.323 with five home runs and 22 RBI in 47 games prior to his call–up.

On June 22, 2024, Raposo was selected to the 40-man roster and promoted to the major leagues for the first time following an injury to Iván Herrera. He did not make an appearance for St. Louis and was optioned down to Memphis on June 24. Raposo was designated for assignment by the Cardinals on July 29.

On August 1, 2024, Raposo was claimed off waivers by the Toronto Blue Jays. In 20 games for the Triple-A Buffalo Bisons, he slashed .246/.361/.312 with one home run and five RBI. Raposo was designated for assignment following the signing of Yimi García on December 13.

On December 19, 2024, Raposo was claimed off waivers by the Seattle Mariners. On January 14, 2025, Raposo was designated for assignment by the Mariners. He cleared waivers and was sent outright to the Triple-A Tacoma Rainiers on January 17.

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Brock Rodden

Brock Rodden (born May 25, 2000) is an American professional baseball infielder in the Seattle Mariners organization.

Rodden attended Oktaha High School in Oktaha, Oklahoma and played college baseball at Seminole State College and Wichita State University. As a sophomore at Wichita State in 2022, he batted .338 with 17 home runs and 48 RBI. Rodden was drafted in the 10th round of the 2022 Major League Baseball draft by the Oakland Athletics but opted not to sign with the team. Returning as a junior at Wichita State in 2023, he played in 55 games and slashed .371/.474/.677 with 17 home runs and 64 RBI and was named the American Athletic Conference Player of the Year. In 2022, he played collegiate summer baseball with the Orleans Firebirds of the Cape Cod Baseball League, and returned to the league in 2023 with the Cotuit Kettleers. Rodden was selected by the Seattle Mariners in the 5th round of the 2023 Major League Baseball draft. He signed with the team for $200,000.

Rodden made his professional debut with the Arizona Complex League Mariners and Modesto Nuts, batting .311 with two home runs over 34 games between both teams in 2023. He split the 2024 season between the High-A Everett AquaSox and Double-A Arkansas Travelers, hitting .257 with 14 home runs, 64 RBI, and 29 stolen bases over 131 games. Rodden was assigned to Arkansas to begin the 2025 season.

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Houston Roth

Houston T. Roth (born March 9, 1998) is an American professional baseball pitcher in the Seattle Mariners organization. Roth is currently a phantom ballplayer, having spent six days on the active roster of the Baltimore Orioles without making an appearance.

Roth attended Oxford High School and played college baseball at the University of Mississippi. In 2018, he played collegiate summer baseball with the Hyannis Harbor Hawks of the Cape Cod Baseball League. In his junior year at Ole Miss, Roth made four starts with a 1-1 record along with a 3.67 ERA and 47 strikeouts.

Roth was selected in the 29th round of the 2019 Major League Baseball draft by the Baltimore Orioles. Roth made his professional debut with the Delmarva Shorebirds in 2021 posting an 8-4 record with an 4.54 ERA. He posted similar stats with the Aberdeen IronBirds in 2022 with a 10-5 record, 4.49 ERA, and 108 strikeouts in 100 innings.

On July 29, 2025, the Orioles selected Roth to the major leagues first time in his career. However he would not yet make his MLB debut, and on August 11, the Orioles outrighted him from the 40-man roster.

On February 18, 2026, Roth signed a minor league contract with the Seattle Mariners.

Roth grew up as a fan of the Houston Astros.

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Boston Smith

Noah Boston Smith (born November 28, 2002) is an American professional baseball catcher in the Seattle Mariners organization.

Smith attended Butler High School in Vandalia, Ohio. He played college baseball at the University of Cincinnati for one year and Wright State University for three years. He was selected by the Washington Nationals in the sixth round of the 2025 Major League Baseball draft.

On March 28, 2026 the Nationals traded Smith to the Chicago White Sox in exchange for Curtis Mead. He made his professional debut that year with the Kannapolis Cannon Ballers and was promoted to the Winston-Salem Dash and Birmingham Barons during the season.

On August 1, the White Sox traded Smith, along with Seranthony Dominguez and Nolan Jones to the Seattle Mariners in exchange for Luis Castillo.

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Jackson Steensma

Jackson Joseph Steensma (born March 12, 2004) is an American professional baseball pitcher in the Seattle Mariners organization.

Steensma attended Byron Center High School in Byron Center, Michigan and played college baseball at Appalachian State University. He missed the 2025 season after undergoing Tommy John Surgery. Despite the injury, he was selected by the Seattle Mariners in the ninth round of the 2025 Major League Baseball draft.

Steensma made his professional debut in 2026 with the Inland Empire 66ers.

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Jared Sundstrom

Jared Sundstrom (born June 21, 2001) is an American professional baseball outfielder in the Seattle Mariners organization.

Sundstrom attended Point Arena High School in Point Arena, California and played college baseball at Santa Rosa Junior College and UC Santa Barbara. As a junior at UC Santa Barbara in 2023, he played in fifty games and batted .322 with 15 home runs and 43 RBIs and was named to the All-Big West Conference First Team. After the season, he was selected by the Seattle Mariners in the tenth round of the 2023 Major League Baseball draft. Sundstrom signed with the team for $165,500.

Sundstrom made his professional debut after signing with the Arizona Complex League Mariners and also played with the Modesto Nuts, batting .240 with three home runs over 22 games between both teams. He played the 2024 season with the Everett AquaSox and hit .263 with 13 home runs, 63 RBIs, and 26 stolen bases over 114 games. Following the season's end, he was selected to play in the Arizona Fall League with the Peoria Javelinas. Sundstrom was assigned to the Arkansas Travelers for the 2025 season. Over 115 games, he batted .219/.297/.374 with 12 home runs, 53 RBIs, and 35 stolen bases while being caught four times.

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