Austin Riley -- Prospect Evaluation

Austin Riley, a 19-year-old prospect in Low-A, demonstrated significant improvement following mechanical adjustments made around the All-Star break in mid-June. Before the break, Riley struggled with fastballs, particularly average velocity pitches on the inside of the plate, compiling a .252/.299/.372 line with 18 doubles, 3 home runs, and 86 strikeouts over 264 plate appearances. After the break, he posted a .289/.348/.581 line with 21 doubles, 17 home runs, and 61 strikeouts in 279 plate appearances, indicating both improved consistency and power production.

Riley attributed his early struggles to pitchers' sequencing strategy: throwing fastballs inside to set up off-speed pitches away. In short-season ball, he received primarily fastballs away and developed opposite-field power, but Low-A pitching exposed this weakness. The key adjustment involved eliminating extraneous hand movement late in his load. Riley explained: "I had the load, then it seemed at the last minute I was going for a little something extra...Just working on keeping them quiet, it's really helped." This subtle mechanical change reduced strikeouts on outside breaking balls and improved his ability to catch fastballs on the barrel.

Riley's strength remains hitting off-speed pitches to the opposite field for power, a desirable trait developed through coaching from his father. The primary development area for advancing beyond A-ball is consistently recognizing and catching up to average fastballs in the strike zone, a challenge he appears to have substantially addressed through his in-season mechanical refinement.

In February 2017, FanGraphs prospect analyst Eric Longenhagen ranked Austin Riley as the 28th prospect in the Atlanta Braves system. At 19 years old, Riley was considered relatively raw after posting a 20-home-run, 124 wRC+ season in Low-A while striking out 147 times, with concerns about his contact profile and conditioning. Longenhagen's scouting report noted that Riley struggled with velocity early in the year before improving his footwork, quieting his hands, and beginning to hit effectively, with late-season adjustments allowing him to turn on plus velocity. Riley has since validated the prospect evaluation, becoming one of baseball's premier sluggers. Since his May 2019 debut, the 41st-overall pick from the 2015 draft has accumulated 124 wRC+ and 19.9 WAR across seven seasons, hit 30-plus home runs in three different years, made two All-Star teams, and established himself as a cornerstone of Atlanta's lineup. Riley reflected on the scouting report's accuracy, explaining that coming out of high school he hadn't faced much velocity and had excess movement in his swing. He recognized his early development involved learning to shorten his approach and focus on making barrel contact rather than assuming his size alone would produce power. These adjustments proved foundational to his subsequent success at higher levels.

Austin Riley was selected 41st overall by the Atlanta Braves in 2015 from a Mississippi high school. Despite being highly regarded as a pitcher by many scouts, the Braves selected him as a third baseman. In his 2015 rookie league debut split between two teams, Riley demonstrated strong power with a .304 batting average and 12 home runs across 252 plate appearances.

Riley played the entire 2016 season at low-A Rome in the South Atlantic League, initially struggling with contact issues. He made two key adjustments: repositioning his hand placement on the bat with a slight choke-up on the handle and moving deeper in the batter's box to extend his arms better. These mechanical adjustments significantly improved his second-half performance.

For the full 2016 season, Riley hit .271/.324/.479 with 20 home runs and 39 doubles in 543 plate appearances. More notably, from June 1 through season's end, he improved to .285/.343/.542 with 17 of his 20 home runs. Riley's swing is characterized as long with excellent bat speed in the zone, though his load to the zone remains an area requiring development, similar to issues David Ortiz overcame early in his career. At 6'3" and 220 pounds, Riley is a sizable prospect for the corner infield position.

The Atlanta Braves selected Austin Riley with the 41st overall pick in the 2015 MLB Draft out of a Mississippi high school, positioning him as a third baseman despite significant interest in him as a pitcher from other organizations. This selection surprised many draft analysts.

Riley immediately displayed notable power potential in his professional debut. Across his 2015 assignments to the Gulf Coast League and the advanced rookie Appalachian League, Riley accumulated 252 plate appearances with a .304 batting average, .389 on-base percentage, and .544 slugging percentage, hitting 12 home runs with a 26/65 walk-to-strikeout ratio. His performance earned him a #79 overall prospect rating from Baseball Prospectus after the 2015 season.

In 2016, Riley opened at low-A Rome in the South Atlantic League and remained there for the entire season. He faced initial struggles while addressing mechanical issues involving velocity and breaking ball command. Working with Atlanta's minor league coaching staff, Riley made adjustments to his swing mechanics and batting box positioning during the second half of the season, positioning him for potential continued development in 2017.

Michael Austin Riley is a prospect signed by the Atlanta Braves in 2015 for $1.6 million as the 41st overall pick. The 6'3", 240-pound right-handed hitter has posted career statistics of .270 average, .334 on-base percentage, and .492 slugging percentage with 169 home runs across 3,144 at-bats. Riley entered the prospect evaluation process as a two-way player, with scouts initially favoring his potential as a pitcher. However, he has developed into a position player prospect, displaying plus power potential and good bat speed at third base, though his offensive production outweighs his defensive capabilities. As a pitcher, Riley's fastball reaches 95 mph (typically 90-91 mph) with average breaking ball potential and some feel for his changeup. Riley reached Atlanta Braves #1 prospect ranking in 2019 and was named Baseball America's #22 prospect that same year. He has received consistent recognition as the organization's best power hitter, best hitter for average, and best infield arm across multiple seasons.