Kobori won by three after firing rounds of 69, 69, and 68 to finish at ten-under ahead of Hannah McCook.
She began the final round with a one-stroke lead and immediately got into her work with back-to-back birdies at the opening two holes. McCook fired back on with a birdie on the third and then again at the seventh to bring the difference back to a single shot. They both parred eight and nine to go out in two-under.
The pair traded jabs early in the back nine with Kobori making her second birdie of the week at the tenth while McCook birdied 11. Kobori made a critical birdie on the par 3 16th to stretch her lead to two with three holes to play.
The 23-year-old held her nerve on 17 and 18, winning by three due to a McCook bogey on the last.
Kobori didn’t make a single bogey since the 11th hole in round one.
She’s ecstatic to get the victory.
“I am so happy with not only how I played but with the whole experience this week and with making the decision to come to Europe.
“It doesn’t happen very often to have a bogey-free round and to have two in a row is really amazing. I think the key for me this week was solid ball striking. I hit a lot of fairways and greens which really helped.
“I was definitely nervous going into the round and coming down the last few holes. But I just really tried to focus on each shot I had in front of me and tell myself that I’ve been hitting it well and focus on the task I had ahead.
“I actually really enjoy playing in front of a crowd, so it was nice to see all the members and volunteers out there watching. I tried to soak that in and enjoy the last few holes coming in,” she explains.
On the LPGA Tour, Lydia Ko has finished in a share of fourth place at the ShopRite LPGA Classic just two shots back of Brooke Henderson.
Ko shot 71, 65, and 67 to finish at ten-under-par.
The world number three began the final day a shot back of the lead and made her presence known early. She made consecutive birdies at three and four and then again at eight and nine to make the turn in four-under and take the lead.
A pair of bogeys at 11 and 13 halted her run, but she was able to finish strong with birdies at 17 and 18. Unfortunately, it was too little too late as Henderson and Lindsey Weaver-Wright finished 12-under and needed extra holes to be separated.
Henderson won on the first playoff hole with an eagle.
Daniel Hillier made it a trio of Kiwis to finish inside the top five, finishing in equal fifth at the Empordà Challenge on the Challenge Tour.
Hillier shot 69, 68, 69, and 66 at the Empordà Golf Club in Spain to finish at eight-under, five shots back of Liam Johnston.
The 23-year-old Wellington-based professional leapt up 12 places on the leaderboard following the final round. He opened with a hiss and a roar, making four birdies in a row to start his final round. He parred the remaining holes on the front nine to turn in four-under.
The back nine was a little more colourful for the Wellingtonian. He birdies 11, 16, and 17, but made bogeys at 12, 13, and 18 to come home in even-par.
He moves up two places in the Challenge Tour Rankings into 11th.
Michael Campbell also had a successful weekend in Europe, recording a sixth-place finish at the Jersey Legends on the European Legends Tour.
The 2005 US Open champion shot 70, 72, and 68 to finish the tournament at six-under, four shots behind Richard Green who beat Paul Lawrie in extra holes.
Campbell made five birdies with just the lone bogey in round four and now moves into 15th on the Order of Merit.
Danny Lee has also put in a solid performance at the RBC Canadian Open.
Lee finished in a tie for tenth at nine-under-par after shooting 68, 69, 69, and 65 around St Georges Golf Club in Toronto, ten shots behind Rory McIlroy who defended his title.
Lee began his final round with a pair of birdies at one and two and a bogey at three. He parred his remaining holes on the front to turn in one under.
The world number 243 played solidly coming home, making birdies on every second hole to shoot four-under on the back and move nine spots up the leaderboard.
Lee sits in 71st place in the FedEx Cup.
Charlie Hillier also had a solid week on the PGA Tour Latin America.
Hillier finished at 17-under after carding 71, 61, 65, and 66 at the Fortox Colombia Classic.
He’s projected to move up 19 places in the Totalplay Cup standings.
Finally, Michael Hendry has finished equal 47th at the Izuka Challenge on the Japan Tour.
Hendry shot rounds of 69, 71, 71, and 68, finishing nine-under.