Welcome To


Kelli Kostick Golf

Offering a variety of programs for golfers of every age and ability, Kelli has been providing golf instruction for over 20 years! With one of the best discerning eyes in the business while combining it with the latest technology – Kelli will elevate your game with proper instruction and guidance.

  • 2023 New England PGA Player Development Award

  • 2020 New England PGA Junior Player Development Award

  • 2019 NHPGA Chapter Junior Golf Leader

  • 2008 – 2009 LPGA Top 50 Teacher

  • 2007 and 2001 NEPGA Teacher of the Year

  • 2001 Massachusetts Chapter Teacher of the Year

  • Top 15 Best Teachers in State by Golf Digest

  • Master Club Fitter – twice honored as a Top 50 Club Fitter by Henry Griffitts (the pioneer in Club Fitting) and certified in fitting all major brands of equipment

Kelli Golf Instruction
Extreme Sports Mountain Climbing

Programs & Offerings

A variety of golf instruction programs are offered for golfers of all ages, abilities, and skill level. Program availability vary from weekday to weekends with several time slots in order to accommodate students’ schedules.

Private Instruction

Adult & Youth Lesson Packages   

Group Instruction

Clinics, Boot Camps & More   

Junior Development

A Complete Set of Programming for Youths   

Sportsbox 3D Golf

Remote 3D animation analysis on your smart device  


Club Equipment Services

Kelli is a master club fitter and utilizes today’s current technology in her teaching and servicing, including TrackMan, Foresight Sports GQuad, KVest, V1 video, and the Dynamic Balance force plate platform.

Club Fitting

All Major Brands   

Club Gapping

Foresight GCQuad   

Wedge & Ball Fitting

All Major Brands   


Utilizing the latest in golf instruction technology to fine tune your game


Swing and Stroke Analyzer

Sportsbox 3D Golf

3D Biomechanical Swing Measurements

Clippd + Arccos

Player Development Tracker

Trackman + Foresight Sports

Simulator and Launch Monitor


Golf Swing Modifier


Golf Swing Motor Learning

A Solid Game For Life

Hear From Kelli’s Students


Kelli is a great coach and I value the time we spend together and the progress she’s helped me with in improving my golf game. My handicap has gone down 10 strokes with a lot of finesse. I wouldn’t be this far along in my goals or have this much fun to push forward without Kelli’s expertise & support!

– Alice

Kelli loves to use the latest in technology to aid in her teaching, but it’s her eye that impresses me the most. I am constantly amazed how quickly she picks up on areas I need to improve upon and has a great way of communicating the feel, and In golf feel is everything.

– Chris

Kelli meets her golf students where they are at. She uses a variety of visual aides, technology and tried and true techniques to help all learners improve at the game. Most importantly she reminds everyone it’s a game and to have fun!

– Matt

A Solid Game For Life

One Country Club Road, Windham, NH 03087


(781) 883 – 5174

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