It is commonly accepted Graf is the best women tennis player of all time. Is she the best on all surfaces though- clay, grass, carpet, and hard courts. Her competition for best ever on clay is Evert, for best ever on grass is Navratilova, for best ever on carpet is Navratilova, and for best ever on hard courts is Serena. I would say yes though. She is the best women player ever on each surface. Grass- Averaged 7 grass slams per grass slam. Navratilova averaged only 6 (9 Wimbledon, 3 Australian). Clay- 6 French Opens but played in a way tougher clay era than Evert who won only 1 more with 7. Prime Graf would also never lose a French Open final to Navratilova 6-3, 6-1, or fail to beat Navratilova in straight sets once in 5 meetings at Roland Garros. Carpet- Navratilova literally had no competition here. Indoors was Evert's worst surface by far. Graf faced Navratilova, Seles, Sabatini, Hingis, and Davenport for years, all phenomenal indoor players (IMO all better indoor players than Evert). Hard Courts- Serena has 1 more major but her massive inconsistency on the surface keeps her beneath Graf for now.