As announced in 2017, the US PGA Championship was moved from August to May, starting in 2019. The PGA of America cited the addition of golf to the Summer Olympics, as well as cooler weather enabling a wider array of options for host courses, as reasoning for the change. It was also believed that the PGA Tour wished to re-align its season so that its FedEx Cup Playoffs would not have to compete with the start of the NFL season in early September, since both United States broadcast partners (CBS and NBC) are NFL broadcast partners.
There are also a number of events which are recognized by the PGA Tour, but which do not count towards the official money list. Most of these take place in the off season (November and December). This slate of unofficial, often made-for-TV events (which have included the PGA Grand Slam of Golf, the Wendy's 3-Tour Challenge, the Franklin Templeton Shootout, the Skins Game, etc.) is referred to as the "Challenge Season" or more commonly as the "Silly Season."
Due to increases in prize funds over the years, this list consists entirely of current players. Two players on the list, Vijay Singh and Davis Love III, are eligible for PGA Tour Champions (having respectively turned 50 in February 2013 and April 2014). Both have lifetime exemptions on the PGA Tour for 20 wins and 15 years on the Tour, and Love has won a tournament on the main PGA Tour since turning 50. The figures are not the players' complete career prize money as they do not include FedEx Cup bonuses, winnings from unofficial money events, or earnings on other tours such as the European Tour. In addition, elite golfers often earn several times as much from endorsements and golf-related business interests as they do from prize money.