manutoo wrote:There's no limit to the number of years stocked in the player base.
The only limit is your PC memory, so you can probably have 100 years without any problem...

OK.
I dont found wta rankings before 1989
But, for mens, I was able to launch 1989 season. With Stefan Edberg, Ivan Lendl and Boris Becker fighting for the number one position. With some guys as Milo Mecir reaching slams finals...
But, game failed in april (because of Davis cup), I have just put the 200 firsts spot in singles rankings. I must put 500... and I hope that game won't fail.
I can, in my opinion, put seasons after 1980. Maybe 1978 and 1979. But before, I've no sufficient ATP rankings. And the calendar of a 80's season is really different as today...