Thirty-two-year-old lefty Kyle Hart isn’t a household name but nonetheless stands as an interesting free agent for clubs seeking rotation depth this winter. The southpaw has pitched in just one big league season, yielding 19 runs in 11 innings for the Red Sox during the shortened 2020 season. Hart, however, has a decent Triple-A track record and just tore through the Korea Baseball Organization in 2024, logging 157 innings with a 2.69 ERA, 28.8% strikeout rate and 6% walk rate. He was awarded the Choi Dong-won Award — the KBO equivalent of MLB’s Cy Young Award — for those efforts.
MLBTR’s Tim Dierkes reports today that Hart has some level of interest from six big league clubs, one of whom has been trying to free up some payroll space before adding Hart or another free agent. At the very least, that’s indicative of a team (or teams) being willing to put forth a big league offer to sign the lefty. Though there hasn’t been much reporting on Hart’s ongoing free agency this winter, he was linked to the Orioles, Astros, Twins, Brewers and Yankees in late December. More than half the league is reported to have at least checked in, though that obviously doesn’t indicate serious interest from all those parties.
Hart’s breakout overseas is reminiscent of recent KBO success stories like Erick Fedde, Chris Flexen and Merrill Kelly, among others. That said, he’ll pitch all of next season at 32. That’s a notable difference from recent KBO-to-MLB arms. Fedde returned ahead of his age-31 season and had the benefit of being a former first-round pick and top prospect. Kelly was 30 when he signed a modest two-year deal with Arizona on the back of a terrific four-year run in South Korea. Flexen’s lone season in the KBO was his age-25 campaign. He returned on a two-year deal with the Mariners at just 26 years old. Of the bunch, Fedde’s $15MM guarantee over two years is the largest contract.
Hart is older than the rest of that group and lacks the prospect pedigree Fedde had. Like many of those pitchers, however, he’s benefited from demonstrable changes to his pitching repertoire since heading to the KBO. He added a new sweeper this season, began throwing his four-seamer up in the zone/above the zone to get some chases, and has used his changeup more heavily. His heater isn’t the type of power offering that modern teams covet, sitting low-90s and peaking around 94 mph, but it’s generally easier for a lefty to get by with lesser velocity than a righty.
Whether that’s enough to sell a major league front office on his viability as a big league rotation cog remains to be seen. Fedde, the most successful of the group in the KBO, won the Choi Dong-won and was named KBO MVP after posting a flat 2.00 ERA with better strikeout and walk rates (29.5% and 4.9%, respectively) than Hart turned in this past season.
If not a return to Major League Baseball, Hart will still have ample opportunity to earn money in Asia. He’s drawn interest from both KBO clubs and teams in Japan’s Nippon Professional Baseball, per Dierkes.