[2] On May 30, 2014, Kondoh hit a grand slam home run in the interleague play against the Tokyo Yakult Swallows at the age of 20 years and 9 months, making him the youngest player in the Pacific League.[10] On August 9, 2022, Kondoh recorded his first walk-off home run against the Saitama Seibu Lions.On December 12, 2022, it was announced that Kondoh would sign with the Fukuoka SoftBank Hawks on a seven-year deal worth 5 billion yen overall.[15] He also won the Outstanding Player Award for his batting average of .413, 5 home runs, and 15 RBIs in interleague play.[18][19] Kondoh made 129 appearances for Fukuoka in 2024, slashing .314/.439/.521 with 19 home runs, 72 RBI, and 11 stolen bases.