OSA's Executive Team

We Bring People & Sports Together


D. Yhale Scott, CEO

Founder of OSA, O'ahu Tennis Academy, and O'ahu Tennis Association. Yhale has trained many ATP, WTA, ITF, Nationally ranked Jr's and is a USTA High Performance Certified Coach. If you want to improve your game immediately, come learn about the Core Four™️  System during your next lesson. World Class development for Everly level. Yhale is a graduate of UCLA and has played many USTA Pro Circuit Events, USTA Tournament and prizes money events. Give him a call for your World Class lesson. Yhale is a USPTA Elite Professional and PTR Certified Professional.

   Tennis,  Golf & Pickleball



Lori Tokutomi
Executive Secretary & PB Professional

Native No. Californian, retired to Hawaii in 2019, from 35 years of court reporting. 

Avid pickleball player since 2017, tournament player, coach and instructor in CA and HI. 

Competed in many tournaments playing in singles, doubles and mixed doubles; winning gold in seniors mixed doubles at the 5.0 level. Current rating 4.0. 

Involved in running sanctioned and non-sanctioned tournaments. Coordinated and trained referees with USA Pickleball Director of Officiating and Head Referee Coordinator.  


Completed first level USA Pickleball referee certification program.

IPTPA Level I Certified Pickleball Teaching Professional Feb 2020.

Pickleball Pro at Honolulu Club from May 2018 to June 2020.

Secretary of Imua Pickleball Hui, a non-profit organization to grow the sport of pickleball, Feb 2019. 

Past Secretary of Diablo Valley Pickleball Club, Walnut Creek, CA. 



OSA's Developmental Team

Hutton Ewert
Tennis & Pickleball Professional

A World Class Tennis Professional with WTA & collegiate playing experience. Played at HPU on O'ahu and has her Masters Degree from HPU. Come take your first class lesson from Deborah today at  OSA.


Mark Keil


 Tennis  & Pickleall Professional

Mark is a former World Class Tennis Player who reached 167 in Singles in the World on the ATP World Tour and top 32 in Doubles. He is a USPTA & USTA High Performance certified professional. Call Mark today for your first class experience with OSA.

Tadd Fujikawa

PGA Touring Professional

Tadd is a World Class Golfer. A Hawai'ian Native. Click below for more information on his amazing career





   Tennis & Pickleall


Merrick Irwin
Tennis & Pickleball Professional

Joshua Bowlin

Surfing Professional

Zach Newton

Surfing Professional

Monica is a graduate of HPU where she player on the HPU Tennis Team all four years. She is from Vancouver, Canada wirer she was ranked top 5 in her country. She trained at the world renowned Weil Tennis Academy. Monica has a Business Administration Degree from HPU.

Joshua has been surfing and competing in surfing competitions for over 20 years. He is a World Class Surfer with superior teaching skills. Joshua will exponentially improve your skills in one lesson. Schedule your World Class lesson with Joshua today with OSA.

Zach has been surfing and competing in competitions for most of his life. He is a World Class Surfer and even more detailed in his approach to training beginner to advanced Surfers. Come take your World Class lesson with Zach and with OSA today.


   Tennis & Pickleball


   Surfing Professional


   Surfing Professional