Lessons in Falmouth, ME, with John Kostis.

Lessons in Falmouth, ME, with John Kostis.

For three full weeks I'll be in Maine and available for private lessons. Come enjoy the sunshine and learn a thing or two about your golf game with me at the Golf Learning Center in Falmouth, Maine or at Falmouth Country Club. All the same services available in a slightly better climate! Limited space so sign up now! Range work, short game practice, and playing lessons available!

Price: $100/hr 

Location: Golf Learning Center 

147 Bruce Hill Road, Cumberland, ME 04021

Info: Call 602-315-9555 or email to book now!

Date: July 7th-30th, 2015

JPK Summer School

Come join me for a four week lesson series designed to improve every aspect of your golf game. We'll be at Grayhawk Golf Club on Saturdays from 10am-12pm for four weeks in a row. If you want to comprehensively revitalize each part of your game this is the class for you. It is a fantastic way to get personalized instruction at a group rate!

  • Week 1
    •  May 30, 2015: Trackman Combine and full swing fundamentals. Includes Trackman printout to take home.
  • Week 2
    • June 6, 2015: How to drive it farther and...straighter!
  • Week 3
    • June 13, 2015: The Scoring Clubs--hit it closer!
  • Week 4
    • June 20, 2015: The Short Game--get it up and down
  • Cost
    • $400 per student for all 4 sessions, limit 5 students per session so there is a guaranteed 5:1 ratio of student to teacher.
    • $125 per session if you want to buy one individually and come to a specific class.

Peter kostis golf Academy

I am thrilled to announce the introduction of the Peter Kostis Golf Academy at Grayhawk Golf Club. The greatest thing golf has given me is the quality relationship I have with my Father. It is an incredible feeling to be able to work with him day in and day out. The inception of his golf school at Grayhawk is something we have worked very hard for and look forward to sharing with you. Check out the website for more information on how to book a golf school with any of the talented instructors: Peter Kostis, John Kostis, Paul Trittler and Jeff Yurkiewicz.

The Leading Edge


I am happy to announce my certification as a Level 2 Professional in the Trackman University program--designed to educate teaching professionals in the latest ball flight, clubhead, and swing analysis technology. I will continue to work on my Masters Certification which is the highest level available in Trackman University. 

Taking the guess work out of club delivery and ball flight analysis has been an incredible experience. It has helped my golf game immeasurably and I know it can help yours too. Come out to Grayhawk and gain access to the same level of information and technology that top professionals worldwide are using to improve their game!

Golfers CAN be Athletic!


Use the technology the pros use for swing and ball flight analysis. Clubhead speed, ball speed, spin, and total distance are only a few of the statistics we can analyze with this incredible doppler radar technology. Compare your numbers with friends and professionals alike and learn how to optimize your equipment. We'll send you home with a full package of video, statistics and voiced over notes about the lesson. Book now by emailing me at or call 602-315-9555.


Make Golf Enjoyable!

Come learn the golf fundamentals that can help you groove your perfect swing. There's no one method to swing a golf club but everyone needs a method to swing a golf club. Golf is a sport played, surprisingly, by athletes! I believe that the swing should be athletic, instinctive, and free. The fundamentals I teach will put you in the right positions to utilize your body's strengths and swing naturally and confidently. Personalized instruction available for adults, juniors, and small groups. Let's see just how much you can enjoy golf in Scottsdale!

"A person who never made a mistake never tried anything new." -- Albert Einstein

All Lessons Take Place at Grayhawk Golf Club