Kelly first signed with LG in 2019 and moved to Korea. He has been an ace since his first year. He successfully renewed his contract with 14 wins, 12 losses and a 2.55 ERA in 2019. In 2020, he consistently served as the first starter with 15 wins and 7 losses and a 3.32 ERA.

Both LG and Kelly wanted each other, so the accompanying continued. He had 13 wins, 8 losses and a 3.15 ERA in 2021, and also won the title of multiple wins with 16 wins, 4 losses and a 2.54 ERA in 2022.

Kelly has played for LG for the fifth year this year, with 10 wins, 7 losses and a 3.83 ERA in 30 games this season. Compared to the past four years, it is the weakest performance. Ironically, his individual performance was the worst in five years, but he finally took the mound for the first time in the Korean Series.

Kelly took the mound as a starting pitcher in Game 1 of the Korean Series against KT on the 7th. He had a quality start with three hits, two walks, six strikeouts and two runs (one earned) in six ⅓ innings. I threw it well, but there was no luck. Replaced in a 2-2 tie. His overall postseason performance was 3-1 with an ERA of 2.11 in seven games (42 ⅔ innings).

Ahead of Game 4 of the Korean Series on the 11th, manager Yeom Kyung-yeop told a back story about Kelly's starting schedule. Coach Yeom said, "If we lost in Game 3, we planned to play Kelly as a starter in Game 4." On the previous day, Coach Yeom disclosed that if he wins Game 3, he will start Game 4, but he only said that if he loses Game 3, he will think of another way. During Game 3, Kelly and Kim Yoon-sik were sent to their accommodation early to rest.

Coach Yeom said Kelly accepted to throw the first game, rest for only three days, and start the fourth game again. Even if it is a short-term game, taking a three-day break is burdensome.

Coach Yeom said, "If Kelly wins, I want to do a rotation on the 5th." If he loses, he has no choice, so he said he would go out with the thought of throwing five innings, even if it was short, because there are bullpen pitchers. It is burdensome to take the mound after a three-day break. But they don't say they don't. I really like that kind of feeling," he said.

Kelly highly praised his sacrifice and dedication to the team. Coach Yeom said, "So I'm going to go with Kelly next year without thinking about it. What the front desk thinks is important, and in my opinion, if there is a foreign player who has such a mind about the team, it will be of great help when a new foreign player comes. If you get a good first-time starter, Kelly can play enough as a second-time starter."

Kelly was sluggish early this season, and rumors of replacement circulated. Coach Yeom said, "When rumors of Kelly's replacement came out, it was appropriate (to be recruited as a substitute) There was no pitcher, and I thought it would be better to go with Kelly than to use a pitcher similar to Kelly. This is because the experience in Korea can never be ignored," he said. Kelly slumped to 6-5 with a 4.44 ERA in 18 games in the first half, before rebounding to 4-2 with a 2.90 ERA in 12 games in the second half.

Coach Yeom said, "Kelly increased his new pitch (folk ball) (before the Korean Series). "The strikeout rate will rise much next season, and the number of pitches (per inning) will decrease," he said, expecting Kelly next year.

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