Nine Under Golf
Golf performance facility
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Nine Under Golf is a golf performance facility based in Exeter, California, founded by Dr. Joe Terrill, a Doctor of Physical Therapy and TPI Certified Golf Performance Specialist. The facility offers two primary training pathways: an independent app-based golf fitness program (The Nine Under Swing Fix) and a fully personalized 1:1 coaching system (The Nine Under Elite Performance System). Programs integrate sports medicine and sports science principles to improve distance, consistency, swing speed, and injury prevention. The facility reports an average distance gain of 41.6 yards and 12.5 mph swing speed increase within approximately 10 weeks.
Amenities
- TPI certification
- movement assessment
- golf fitness programs
- flexibility training
- strength training
- speed training
- power training
- balance training
- endurance training
- 1:1 performance coaching
- swing analysis
- injury prevention
- recovery strategies
- training app