I am currently play incredible-1 difficulty and find it very realistic. The only thing that makes me feel sick is the serve of my opponent, they have their first serve with 210kmh+ so easily like bombshell.
Singles Titles and Finalists:
250: Kuala Lumpur '15
Challenger: Georgia F1 '14,Wroclaw '16
Doubles Titles and Finalists:
GS: Australian Open '15,Roland Garros '15(RU)
Masters: Paris '14(RU),Madrid '15(RU),Rome '15(RU)
250: Kuala Lumpur '14,Doha '16