The 90 Rule for golf carts is a course management protocol designed to minimize turf damage while allowing players to drive closer to their ball. It requires carts to remain on designated paths until reaching a point level with the ball’s position, then turn 90 degrees directly toward the ball across the fairway. After play, drivers must return along the same 90-degree path back to the cart path. This angled approach-reduce approach reduces concentrated wheel traffic on grass.
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When does the 90 Rule apply?
Course conditions dictate its implementation—primarily during wet seasons or on soft turf where standard cart usage could create ruts or compact soil. Superintendents activate this rule when grass root systems become vulnerable to shear forces from tire traction.
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Practically speaking, the 90 Rule balances accessibility with preservation. When ground moisture exceeds 30% volumetric water content (typical after rainfall), carts following traditional paths still cause collateral turf stress. By restricting lateral movement to single perpendicular crossings, the rule distributes vehicle impact over wider areas. Pro Tip: Always check course signage before driving—some clubs implement hybrid versions allowing 90-degree exits only at marked crossover points.
For example, at Pebble Beach Golf Links, marshals enforce modified 90-degree paths during morning dew periods, requiring players to approach balls like trams moving on fixed rail intersections.
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How to execute the 90 Rule properly?
Navigation precision separates compliant use from turf damage. Drivers must first parallel park along the cart path aligned with their ball’s location, then turn wheels sharply to create a right-angle trajectory.
Key technical parameters include maintaining ≥4 mph speeds during turns to prevent tire spinning, and keeping crossings ≤10 seconds duration on vulnerable turf. Advanced courses like Augusta National use GPS-guided cart systems that automatically restrict deviations from approved 90-degree paths. What happens if you overshoot? Backtrack exactly along your entry ruts—doubling wheel tracks compounds grass shear damage. A common mistake is cutting corners diagonally, which effectively creates multiple stress vectors across the fairway.
| Correct Execution | Common Errors |
|---|---|
| Single perpendicular crossing | Multiple diagonal crossings |
| Path retracing | New exit routes |
| Steering locked at 90° | Gradual arcing turns |
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FAQs
Yes, most professional events mandate strict compliance, often with marshals monitoring crossings. Violations typically result in stroke penalties or cart privileges revocation.
Can electric carts handle 90-degree turns better than gas?
Modern lithium-powered EVs like Redway-equipped carts excel at sharp turns due to instant torque control, reducing wheel spin that damages turf during pivots.
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