Open Era tennis records – Men's singles
The Open Era is the current era of professional tennis. It began in 1968 when the Grand Slam tournaments allowed professional players to compete with amateurs, ending the division that had persisted since the dawn of the sport in the 19th century. The first open tournament was the 1968 British Hard Court Championships held in April, followed by the inaugural open Grand Slam tournament, the 1968 French Open, a month later. Unless otherwise sourced, all records are based on data from the Association of Tennis Professionals (ATP), the International Tennis Federation (ITF), and  the official websites of the four Grand Slam tournaments. All rankings-related records are based on ATP Rankings, which began in 1973. The names of active players appear in boldface. Year-end championships. There have been three prominent YECs in the Open Era, each involving only the top performers for the given year. Those championships are the most coveted titles after the Grand Slams. (1970–present) This is a combination of the YECs for two separate tours: the ITF Grand Prix that ran until 1989 and the ATP Tour that replaced it. For record-keeping purposes, the ATP has incorporated  the entire history of the ITF "Masters Grand Prix" alongside its ATP Finals tournament; thus they are both listed as "ATP" here. In total, these YECs have been held at numerous venues around the globe and played on several surfaces (indoor hard since 2006). (1971–89) The WCT Finals, as the YEC for the World Championship Tennis tour, was held in Dallas, Texas and played on indoor carpet courts. (1990–99) The Grand Slam Cup (GSC) was an ITF tournament for the top performers in the year's Grand Slam tournaments. It was held in Munich, Germany and played on indoor carpet  courts. Masters tournaments. The Masters is an annual series of nine top-level tournaments featuring the top players on the tour. Along with the Grand Slams and YECs, those are the most coveted titles. Starting from 1990, the ATP took control of the main tour creating the ATP Tour. Since then, the tournaments outside of the Grand Slams and Year-End Championships on the ATP Tour have been classified as ATP Masters 1000, ATP 500 and ATP 250 tournaments. All tournaments. Winning streaks. Winning streaks per court type Olympic tournaments. Tennis was reinstated as an official Olympic sport in 1988 . There have been nine tournaments in the Open Era. ATP rankings achievements. ATP rankings began in 1973. These weekly rankings determine tournament eligibility and seedings. At the end of each year they also become the official ATP season rankings. Year-end rankings. Prize money. Prize money has increased throughout the open era, in some cases greatly in a short time span. For example, the Australian Open winner received A$916,000 in 2004 and A$2,875,000 in 2022.