In a recent update to MLB’s top 100 prospect rankings, Konnor Griffin of the Pittsburgh Pirates has risen to the number one spot, marking a significant shift in the landscape of baseball’s future stars. This comprehensive list, compiled by ESPN MLB Insider Kiley McDaniel, reflects changes due to the MLB draft, breakout performances, and recent trades, providing insights into the most promising young talents across the league.
The rankings are led by Konnor Griffin, a shortstop who was the ninth overall pick in the 2024 MLB draft. Griffin’s rapid ascent is attributed to his improved swing, defensive skills, and power potential, with comparisons to stars like Fernando Tatis Jr. He is currently playing in Double-A and is projected to be an everyday MLB shortstop with above-average on-base percentages and around 20 home runs annually. His rise underscores the unpredictable nature of prospect development and the impact of post-draft adjustments.
Other top prospects include Kevin McGonigle of the Detroit Tigers at number two, who has exceeded expectations with enhanced power and a solid all-around game, and Jesus Made of the Milwaukee Brewers at number three, an international signee who has impressed with his performance in the lower minors. The list also features Samuel Basallo of the Baltimore Orioles and Leo De Vries, recently traded to the Athletics, highlighting the diversity of talent sources from drafts and international markets.
The rankings were published on August 20, 2025, by ESPN, following consultations with scouts and executives from around the league. This update comes at a crucial time, as the minor league season nears its end, and teams evaluate their farm systems for future call-ups and roster decisions. The timing allows fans and organizations to gauge the progress of prospects after a busy trade deadline and draft season.
Geographically, the prospects are spread across all 30 MLB teams, with notable concentrations in organizations like the Pirates, Tigers, and Brewers. The rankings cover players at various levels of the minors, from rookie ball to Triple-A, as well as some who have recently debuted in the majors but still retain rookie eligibility. This global representation emphasizes MLB’s extensive scouting and development networks.
The primary reason for this update is to account for the dynamic changes in prospect status throughout the 2025 season. Factors such as player graduations to the majors, regression in performance, and the influx of new talent from the 2025 MLB draft have necessitated a reevaluation. Additionally, trades at the deadline, like De Vries’ move to the Athletics, have altered team prospect pools, making this ranking a timely resource for assessing long-term potential.
McDaniel’s methodology involves grading players on a future value (FV) scale, considering their upside, risk, and proximity to the big leagues. The 60 FV tier includes elite prospects like Griffin, while lower tiers detail players with varying levels of impact potential. Input from industry experts ensures that the rankings are grounded in real-world scouting reports and statistical analysis, balancing subjective evaluation with objective data.
The impact of these rankings is significant for MLB teams, informing decisions on player development, promotions, and trade strategies. For fans and analysts, it provides a snapshot of future stars who could shape the league in coming years. The list also influences fantasy baseball and betting markets, as prospects’ values fluctuate based on their ranking and projected arrival in the majors.
Looking ahead, many of these prospects are expected to make their MLB debuts in the near future, with some, like Bubba Chandler of the Pirates, already set for call-ups. The ongoing development of these players will be closely monitored, and future updates will reflect their progress, injuries, or changes in performance. As the offseason approaches, these rankings will serve as a foundation for offseason moves and 2026 season preparations.