Over the winters of 2010 and 2011, changes were made at fifteen holes following a review by Martin Hawtree to ensure that Muirfield remained a suitable challenge for the world's best professional and amateur golfers. In summary those changes included the introduction of new bunkers in selected drive areas; the relocation of greenside bunkers to tighten the entrances to greens; the extension of greens to provide more championship pin positions and the introduction of six new championship tees taking the course to 7245 yards in length. While many in number, the changes were subtle in nature and the essential characteristic of Muirfield has been carefully retained. The most noticeable difference would be the 9th Hole which is now a truly testing par 5, particularly into the prevailing wind.

The work was commissioned and completed on schedule and has received universal approval from players and commentators alike. The new championship layout will be played in competition for the first time in July 2013 at the Open.