The R&A and USGA have proposed a Model Local Rule (MLR) that gives competition organisers the option to require use of golf balls that are tested under modified launch conditions to address the impacts of hitting distance in golf. The MLR is intended for use only in elite competitions and, if adopted, will have no impact on recreational golf. The proposal notice was sent to golf equipment manufacturers yesterday, following the Equipment Rulemaking Procedures established by the governing bodies in 2011. Manufacturers and golf stakeholders can provide feedback until August 14, 2023. If adopted, the proposal would take effect in January 2026.
Golf balls that conform to the MLR must not exceed the current Overall Distance Standard (ODS) limit of 317 yards (plus three yards tolerance) at modified Actual Launch Conditions (ALC) with a clubhead speed of 127 mph and based on a calibration set-up for 11 degrees and 37 revolutions per second (2220 rpm) as part of this proposal. All other balls, including those typically used by recreational golfers with lower swing speeds, would continue to be tested using the existing ALC values (120 mph, and a calibration set-up of 10 degrees and 42 revolutions per second – 2520 rpm). The current ODS limit of 317 yards will remain unchanged and would be applied to both testing set-ups.
The Overall Distance Standard was established in 1976 as a ball test intended to reflect maximum potential hitting distance by the longest hitters currently playing the game. There is a direct correlation between clubhead speed and hitting distance (further research having been published in the Distance Insights reports). Over the last 20 years hitting distance has increased on average by around one yard per year. The modified testing set-up in the proposed MLR is expected to reduce hitting distance by 14-15 yards on average for the longest hitters with the highest clubhead speeds.
Martin Slumbers, CEO of The R&A, said: “We have worked closely with the golf industry throughout this process and taken time to listen carefully to their perspectives and reflect on the helpful and constructive feedback they have provided. At the core of our proposal is a desire to minimise the impact on a flourishing recreational game. We believe the proposed Model Local Rule will help us move forward in a way that protects the inherent qualities of the sport and reduces the pressure to lengthen courses. This is an important issue for golf and one which needs to be addressed if the sport is to retain its unique challenge and appeal.”
“Hitting distances at the elite level of the game have consistently increased over the past 20, 40, and 60 years,” said Mike Whan, CEO of the USGA. “It’s been two decades since we last revisited our testing standards for ball distances. Predictable, continued increases will become a significant issue for the next generation if not addressed soon. The MLR we are proposing is simple to implement, forward-looking and does so without any impact on the recreational game. We are taking the next steps in this process, guided first and foremost by doing what’s right by the entire game.”
The governing bodies have consulted closely with the golf industry throughout the Distance Insights project, which commenced in 2018 but has been of continual study over at least the last two decades. This is the fourth formal feedback period to be opened in the last five years, in addition to continuing stakeholder engagement across the game, including golfers, fans, competition organisers, equipment manufacturers, golf course owners, superintendents, architects and others.
Based on feedback received from manufacturers, The R&A and the USGA are no longer considering the use of launch conditions that are optimised for each individual golf ball model to evaluate conformance. Similarly, they are not pursuing a reduction in the characteristic time limit in the existing Equipment Standards or changes to the Moment of Inertia limit of drivers at this time.






