The 9th Annual OG Mamas Breast Cancer Charity

X-Tier X-Tiers are not a separate Tier, but rather a designation used in conjunction with another Ti ... show more ›

X-Tier X-Tiers are not a separate Tier, but rather a designation used in conjunction with another Tier level (XM, XA, XB, or XC). X-Tier events either use experimental formats or have deviations from ordinary PDGA rules and regulations significant enough to merit this modified Tier designation. X can be added to the Tier designation for a variety of reasons. If the event is a non-singles format - such as doubles, triples, team, or match play - or uses non-standard rules - like offering mulligans or mandating throw and distance penalties for an island green - the X means the event is not rated. The X can also be used for other non-ratings related items such as a charity event with limited payouts or a restriction on who can register such as residents of a specific country or state, or collegiate-only. These types of X-Tiers, where the format is ratable, will still receive ratings.