Here are the Rangers' 2025 Top 30 prospects

Injuries derailed the Rangers¡¯ defense of their 2023 World Series championship as they dropped from 90 victories to 78 and finished eight games out of the playoffs. The oldest pitching staff in the Majors was especially hard hit, both in terms of ailments (requiring 15 different starters over the course of the season) and by opponents (Texas 4.37 ERA was the seventh-worst in the game).

The future looks brighter, however. The Rangers have assembled what should be one of the most formidable clubs in the American League this season and they¡¯re coming off a banner year in terms of pitching development.

Kumar Rocker (No. 2) came back from Tommy John surgery, reclaimed the stuff that made him a college superstar and made his long-awaited big league debut in September. Former Vanderbilt teammate Jack Leiter (No. 3) won the Triple-A Pacific Coast League¡¯s pitcher of the year award and also reached Texas for the first time, though he got hammered once he did.

Winston Santos (No. 5) and Emiliano Teodo (No. 6), both signed for $10,000 out of the Dominican Republic in the 2019-20 international class, thrived at Double-A and should make an impact with the Rangers very soon. So should reliever Marc Church (No. 23), who has late-inning stuff. Some evaluators thought 2023 fifth-rounder Alejandro Rosario (No. 7) was the best of the bunch after he carved up hitters at two Class A levels, though his elbow gave out last month and required Tommy John surgery that will sideline him until 2026.

The farm system had some position-player highlights as well. Elite outfield prospects Evan Carter and Wyatt Langford graduated to Texas, though Carter missed most of the season with a stress fracture in his back. Shortstop Sebastian Walcott (No. 1) established himself as one of the game¡¯s best prospects after starring at High-A at age 18. Other international signees such as outfielder Alejandro Osuna (No. 8) and shortstop Yolfran Castillo (No. 9) also boosted their stock.

Here's a look at the Rangers¡¯ top prospects:

1. Sebastian Walcott, SS/3B (MLB No. 17)
2. Kumar Rocker, RHP (MLB No. 44)
3. Jack Leiter, RHP
4. Malcolm Moore, C
5. Winston Santos, RHP
Complete Top 30 list ?

Biggest jump/fall

Here are the players whose ranks changed the most from the 2024 preseason list to the 2025 preseason list.

Jump: Winston Santos, RHP (2024: unranked | 2025: 5)
After making some mechanical adjustments at the end of a rough 2023 season, he improved his fastball and slider and led the system in wins (11) and strikeouts (138 in 110 1/3 innings).

Fall: Brock Porter, RHP (2024: 4 | 2025: unranked)
Signed for a fourth-round-record $3.7 million in 2022, he began last season as a Top 100 prospect before his control fell completely apart.

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Best tools

Players are graded on a 20-80 scouting scale for future tools -- 20-30 is well below average, 40 is below average, 50 is average, 60 is above average and 70-80 is well above average. Players in parentheses have the same grade.

Hit: 60 -- Yolfran Castillo
Power: 65 -- Sebastian Walcott
Run: 70 -- Cameron Cauley
Arm: 70 -- Sebastian Walcott
Defense: 60 -- Cameron Cauley (Yolfran Castillo, Anthony Gutierrez)
Fastball: 65 -- Emiliano Teodo
Curveball: 60 -- Kumar Rocker
Slider: 70 -- Kumar Rocker (Marc Church, Emiliano Teodo)
Changeup: 65 -- Kolton Curtis
Control: 60 -- Alejandro Rosario (Mitch Bratt, Josh Stephan)

How they were built
Draft: 15 | NDFA: 3 | International: 11 | Trade: 1

Breakdown by ETA
2025: 8 | 2026: 7 | 2027: 8 | 2028: 5 | 2029: 1 | 2030: 1

Breakdown by position
C: 1 | 1B: 1 | 2B: 1 | SS: 3 | OF: 7 | RHP: 15 | LHP: 2