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Phone Number:
(301) 670-1966
« Maryland Golf Courses

Blue Mash Golf Course

Address: 5821 Olney Laytonsville Rd, Gaithersburg, MD 20882-1719
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Golf Lessons

Blue Mash is the place to go for top notch instruction, fun filled junior camps, and incredible practice facilities. We have an all grass driving range, 9,000 square foot putting green, and separate short game green for chipping and bunker practice. Blue Mash is the place to be to improve your game- no matter what your level of experience!

Click on an instructor’s name to learn more about them!
Mike O’Barsky

(301) 922-2923

Kent Keith

(301) 438-3198

Glenn Phillips

(301) 775-1444

Mike O'Barsky

Mike O’Barsky

  • 2011 Super Senior World Title Ranking – 11
  • Undefeated in Super Senior Local Qualifying
  • “In the Grid” Long Drive – 372 yards
  • Blue Mash Long Drive- #5 – 413 yards
  • Custom Club Fitter for Top Tour Players

The Golf Performance Academy

The Golf Performance Academy (GPA) was founded by Mike O’Barsky, instructor and one of the nation’s top club builders for PGA, LPGA, European, and Nationwide Tour players for over 30 years. Mike’s specialty is analyzing and applying the highly interdependent relationships of human factors, swing characteristics, and equipment performance that lead to great golf scores. In doing so, GPA has earned a solid reputation of quality and integrity in serving all levels of players.


  • Private and Group Lessons – Private Lesson: $130/hr or 4 lessons for $390. Buy online.
  • Competitive Mindset Training
  • Video Analysis
  • Biomechanical Assessment
  • Corporate Clinics
  • Long Drive Clinics (Every other Thursday at Blue Mash!)
  • Full Swing Clinics
  • Computerized Club Fittings (by appointment only)
  • Full Club Repair
Through private lessons, group lessons, and custom clubs, Mike has taken my game from total frustration to vast improvement, fun, and confidence. I truly appreciate all he has done for me.”
- Larry R., Gaithersburg, MD

View Mike’s Pricing for Club Repair and Club Fitting

PGA Logo

Kent Keith, PGA

  • Published in GOLF Magazine
  • Featured on Sports Radio 980
  • Twice nominated for the Middle Atlantic PGA Teacher of the Year Award
  • Tournament winner on the MAPGA Senior Tour

Topics of Instruction

  • Full Swing Basics
  • Short Game Basics
  • Sand Bunker Play
  • Putting
  • Course Management
  • Rules and Etiquette
  • Club Fitting
  • Video Swing Analysis
One-on-One Instruction

Video swing analysis

Swing videos and analyses emailed to student

Private Lessons
  • One-hour: $130
  • Series of 5: $520
  • Total Game Session (One-hour short game, one-hour full-swing, one-hour on-course instruction) $330
  • On-course Lesson (one hour): $150

Junior Lessons (Age 7-17)

  • 45-minute session: $90
  • Series of 4: $270

Quick Links:


Email Kent


PGA Logo

Glenn Phillips, PGA

  • Golf Professional with 20+ Years of Experience
  • PGA Member since 1995
  • Studied under several Golf Digest “Top 100 Teaching Professionals”
  • Former Head Teaching Professional at Falls Road Golf Course in Potomac, MD
  • Golf Instructor at Woodmont Country Club in Rockville, MD
  • Golf Professional at Sparrows Point Country Club in Baltimore, MD
  • Certified Club Fitter since 1995
Glenn Phillips

Areas of Instruction

  • Full Swing
  • Putting
  • Course Strategy
  • Sand Bunker
  • Short Game
  • Video Analysis
  • Club Fitting
  • Proper Practice Techniques

Lesson Pricing

Private Lessons
  • Individual – 45 minutes: $80
  • 5-lesson package: $375
Group Lessons
  • 2 students – 45 minutes: $45 each
  • 3 students – 45 minutes: $35 each
  • 4 or more students – 45 minutes: $30 each
  • Playing Lesson
    • 1 hour: $100
    • 9 holes: $200