Check seniortennisblog.com for updates…but most tournaments have been cancelled; all category II are now sectional events; ITF has cancelled all but Grade 2, 3, 4 for 2020 but will resume play August 31st. USTA will not begin National play before September.

From carolynnichols.com and seniortennisblog.com:

Women’s Category I

Women’s Category II (Partial)

Men’s Category I

Men’s Category II (Partial)

Family Category I

Mixed Category I

From USTA.com:

Women’s Category I Schedule

Men’s Category I Schedule

Family Category I Schedule

Category II Schedule

Mixed Category I Schedule

Category III Schedule (2020 not yet posted)