Lydia Ko opened up about her outing at the Grant Thornton Invitational 2025. The LPGA Tour and PGA Tour co-sanctioned event concluded with its finale on Sunday, December 14. Ko teamed up with Jason Day for the outing, but they struggled with their game and settled in a T13 position.After the game, Ko shared a video and pictures of her outing on her Instagram account. She shared the post with a heartfelt message, stating that she had a “blast” playing with Day. She wrote:"Lucky to be able to partner up with @jasondayofficial for the third consecutive year! Regardless of the result had a blast with the team 💛🔼 Thank you @grantthorntonusa for this amazing opportunity! Always proud to represent you!" View this post on Instagram Instagram PostKo had shared her excitement to play in the tournament ahead of the start of the tournament. In a pre-tournament press conference held on December 10, she said (via Tee Scripts):"This is a really cool way to end the season. It was fun to come down this stretch with Jason in '23 and end up winning. Yeah, I think for me, I learn a lot this week seeing how the guys play and how they go about their business, so I'm excited to be here again. Hopefully we have a great week."Lydia Ko and Jason Day started the campaign with an opening round of 60, followed by a second-round score of 72. The team carded a final-round score of 67 and settled with a total score of 17-under. They struggled in the final round and slipped four spots on the leaderboard.Andrew Novak and Lauren Coughlin won the tournament. They registered a three-stroke win in the game.Lydia Ko shares a heartfelt post after the wrap of the CME Group Tour ChampionshipLydia Ko shared a heartfelt post on her Instagram after the conclusion of the 2025 CME Group Tour Championship. She shared a few pictures of herself and talked about her season. She wrote:"Playing in the @cmegroup tour championship is always a treat. Special thank you to Terry Duffy for your ongoing support 💙 Hard to beat a season like last year, but 2025 has been full of learning opportunities and growth both on and off the course."In the post, she also reflected on her excitement for the Grant Thornton Invitational. She added:"Year 12 of school is not done yet… looking forward to being back in Naples and finishing up the season with @jasondayofficial @grantthorntoninv 💜" View this post on Instagram Instagram PostThis season on the LPGA Tour, Lydia Ko started the campaign at the Hilton Grand Vacations Tournament of Champions. She settled in a solo sixth place. She then won the HSBC Women’s World Championship after playing four rounds of 71, 67, 68, and 69.Some of her other notable finishes were T6 at the Ford Championship, T12 at the KPMG Women’s PGA Championship, T5 at the CPKC Women’s Open, and T9 at the Maybank Championship.