1984: Navratilova receives a $1 million bonus from the ITF for winning Roland Garros and thus holding all four Grand Slam singles crowns at the same time; she also crosses the $2 million mark in season earnings, more than men’s No.1 John McEnroe. The Australian Open joined the US Open in offering the women’s event equal prize money (temporarily did not between 1996-2000).
Source: WTA