MLB players born in 2003
62 MLB players on file were born in 2003. 59 are on MLB rosters now. Junior Caminero leads them with 11.1 career WAR. The first born in 2003 to play in the MLB were Junior Caminero, Eury Perez, and Jasson Dominguez, in 2023. Every season since 1876 is on file.
On MLB rosters now (59)
| Player | Pos | Years | Seasons | Career | Born |
|---|---|---|---|---|---|
| Junior CamineroTB | 3B | 2023–2026 | 4 | 378 H · 94 HR · 11.1 WAR | Santo Domingo, Dominican Republic |
| Jackson MerrillSD | CF | 2024–2026 | 3 | 434 H · 66 HR · 10.6 WAR | Baltimore, MD |
| Eury PerezMIA | SP | 2023–2026 | 3 | 20 W · 383 SO · 5.2 WAR | Santiago, Dominican Republic |
| Chase BurnsCIN | SP | 2025–2026 | 2 | 15 W · 252 SO · 4.9 WAR | Naples, Italy |
| Cole YoungSEA | 2B | 2025–2026 | 2 | 189 H · 21 HR · 4.9 WAR | Pittsburgh, PA |
| Carson BengeNYM | RF | 2026 | 1 | 168 H · 20 HR · 4.3 WAR | Oklahoma City, OK |
| Carter JensenKC | C | 2025–2026 | 2 | 144 H · 30 HR · 4.1 WAR | Kansas City, MO |
| Henry BolteATH | CF | 2026 | 1 | 115 H · 11 HR · 3.3 WAR | San Francisco, CA |
| Cam SmithHOU | RF | 2025–2026 | 2 | 211 H · 30 HR · 2.9 WAR | Lake Worth, FL |
| Sam AntonacciCHW | LF | 2026 | 1 | 133 H · 8 HR · 2.5 WAR | Springfield, IL |
| Sal StewartCIN | 1B | 2025–2026 | 2 | 178 H · 37 HR · 2.3 WAR | Miami, FL |
| Trey YesavageTOR | SP | 2025–2026 | 2 | 6 W · 113 SO · 2.3 WAR | Pottstown, PA |
| Bradgley RodriguezSD | RP | 2025–2026 | 2 | 5 W · 90 SO · 2.0 WAR | Petare, Venezuela |
| Jac CaglianoneKC | RF | 2025–2026 | 2 | 181 H · 30 HR · 1.9 WAR | Tampa, FL |
| Jackson HollidayBAL | 2B | 2024–2026 | 3 | 250 H · 29 HR · 1.3 WAR | Austin, TX |
| Andrew PainterPHI | SP | 2026 | 1 | 3 W · 115 SO · 1.3 WAR | Pompano Beach, FL |
| Hagen SmithCHW | SP | 2026 | 1 | 3 W · 41 SO · 1.3 WAR | Bullard, TX |
| Hao-Yu LeeDET | 2B | 2026 | 1 | 87 H · 10 HR · 1.0 WAR | New Taipei, Taiwan |
| Emmanuel RodriguezMIN | CF | 2026 | 1 | 8 H · 2 HR · 0.7 WAR | Santiago, Dominican Republic |
| Gage JumpATH | SP | 2026 | 1 | 6 W · 108 SO · 0.6 WAR | Aliso Viejo, CA |
| Joshua Kuroda-GrauerATH | 3B | 2026 | 1 | 26 H · 1 HR · 0.6 WAR | New Brunswick, NJ |
| Jasson DominguezNYY | RF | 2023–2026 | 4 | 163 H · 22 HR · 0.4 WAR | Esperanza, Dominican Republic |
| Edgar QueroCHW | C | 2025–2026 | 2 | 136 H · 8 HR · 0.4 WAR | Cienfuegos, Cuba |
| Lucas SpenceHOU | CF | 2026 | 1 | 12 H · 4 HR · 0.4 WAR | Chicago Heights, IL |
| Harry FordWSH | C | 2025–2026 | 2 | 20 H · 3 HR · 0.3 WAR | Atlanta, GA |
| Nacho Alvarez Jr.LAA | SS | 2024–2025 | 2 | 47 H · 2 HR · 0.3 WAR | Fontana, CA |
| Alimber SantaHOU | RP | 2026 | 1 | 0 W · 9 SO · 0.3 WAR | Azua Province, Dominican Republic |
| Braden MontgomeryCHW | RF | 2026 | 1 | 73 H · 6 HR · 0.3 WAR | Des Moines, IA |
| Carlos JorgeCIN | CF | 2026 | 1 | 10 H · 1 HR · 0.3 WAR | Puerto Plata, Dominican Republic |
| Jose FernandezARI | DH | 2026 | 1 | 52 H · 3 HR · 0.2 WAR | Cumaná, Venezuela |
| Luis De LeonBAL | RP | 2026 | 1 | 0 W · 6 SO · 0.2 WAR | Barahona, Dominican Republic |
| Mitch BrattARI | SP | 2026 | 1 | 1 W · 30 SO · 0.2 WAR | Newmarket, Canada |
| Yunior MarteSF | SP | 2026 | 1 | 0 W · 15 SO · 0.2 WAR | Azua Province, Dominican Republic |
| Brady HouseWSH | 3B | 2025–2026 | 2 | 140 H · 14 HR · 0.1 WAR | Winder, GA |
| Antwone KellyPIT | RP | 2026 | 1 | 0 W · 14 SO · 0.1 WAR | Oranjestad, Aruba |
| Joshua BaezSTL | LF | 2026 | 1 | 23 H · 7 HR · 0.1 WAR | Boston, MA |
| Kahlil WatsonCLE | RF | 2026 | 1 | 21 H · 1 HR | Chase City, VA |
| Nick MorabitoNYM | LF | 2026 | 1 | 8 H · 0 HR | Mclean, VA |
| Ben KudrnaKC | SP | No games yet | — | — | Shawnee Mission, KS |
| Hendry MendezMIN | OF | No games yet | — | — | Santo Domingo, Dominican Republic |
| Jadher AreinamoTB | 2B | No games yet | — | — | Maracay, Venezuela |
| Moises ChacePHI | SP | No games yet | — | — | La Guaira, Venezuela |
| Thayron LiranzoDET | C | No games yet | — | — | San Francisco de Macoris, Dominican Republic |
| James TriantosCHC | 2B | 2026 | 1 | 1 H · 0 HR · -0.1 WAR | Fairfax, VA |
| JR RitchieATL | SP | 2026 | 1 | 1 W · 68 SO · -0.1 WAR | Seattle, WA |
| Moises BallesterosLAA | DH | 2025–2026 | 2 | 85 H · 11 HR · -0.3 WAR | Los Teques, Venezuela |
| Jackson KentWSH | SP | 2026 | 1 | 2 W · 30 SO · -0.3 WAR | Hanover Park, IL |
| Noah SchultzCHW | SP | 2026 | 1 | 4 W · 67 SO · -0.3 WAR | Naperville, IL |
| Sean KeysTOR | DH | 2026 | 1 | 12 H · 2 HR · -0.3 WAR | Huntington, NY |
| Tommy WhiteATH | 1B | 2026 | 1 | 48 H · 3 HR · -0.3 WAR | St. Petersburg, FL |
| Cam CauleyTEX | CF | 2026 | 1 | 12 H · 1 HR · -0.4 WAR | Houston, TX |
| Luis PeralesWSH | RP | 2026 | 1 | 0 W · 13 SO · -0.5 WAR | Guacara, Venezuela |
| Deyvison De Los SantosMIA | 1B | 2026 | 1 | 6 H · 0 HR · -0.6 WAR | Santo Domingo, Dominican Republic |
| Chase PettyCIN | RP | 2025–2026 | 2 | 1 W · 22 SO · -0.7 WAR | Camden, NJ |
| Jonah TongNYM | SP | 2025–2026 | 2 | 4 W · 56 SO · -0.7 WAR | Markham, Canada |
| Edwin ArroyoCIN | 2B | 2026 | 1 | 33 H · 0 HR · -0.7 WAR | Arecibo, Puerto Rico |
| Caden DanaLAA | SP | 2024–2025 | 2 | 1 W · 41 SO · -0.8 WAR | Warwick, NY |
| Carson WilliamsTB | SS | 2025–2026 | 2 | 21 H · 6 HR · -0.8 WAR | San Diego, CA |
| Adael AmadorCOL | 2B | 2024–2026 | 3 | 49 H · 5 HR · -0.9 WAR | Santo Domingo, Dominican Republic |
Former MLB players born in 2003 (3)
| Player | Pos | Years | Seasons | Career | Born |
|---|---|---|---|---|---|
| Nick Kurtz | 1B | 2025–2026 | 2 | 212 H · 57 HR · 9.2 WAR | Lancaster, PA |
| Elmer Rodriguez | SP | 2026 | 1 | 0 W · 21 SO | Trujillo Alto, Puerto Rico |
| Tanner McDougal | P | 2026 | 1 | 0 W · 0 SO · -0.1 WAR | Henderson, NV |
Birth dates as ESPN lists them. Best career first: WAR in the regular season, summed over the seasons on file.