CREATE TABLE table_1918850_2 (championship VARCHAR, opponents_in_the_final VARCHAR, partner VARCHAR, outcome VARCHAR, surface VARCHAR)
which championship had helena suková tom nijssen as opponents in the final and nicole provis as partner, the surface was hard and the outcome was winner
SELECT championship FROM table_1918850_2 WHERE outcome = "Winner" AND surface = "Hard" AND partner = "Nicole Provis" AND opponents_in_the_final = "Helena Suková Tom Nijssen"