Table:
0
A
B
C
D
E
F
1
Outcome
Date
Championship
Surface
Opponent in the final
Score in the final
2
Runner-up
1979
Kitzbühel , Austria
Clay
Vitas Gerulaitis
2–6, 2–6, 4–6
3
Winner
1981
Nancy , France
Hard (i)
Ilie Năstase
6–2, 7–5
4
Runner-up
1983
Delray Beach WCT , U.S.
Clay
Guillermo Vilas
1–6, 4–6, 0–6
5
Runner-up
1984
Vienna , Austria
Hard (i)
Tim Wilkison
1–6, 1–6, 2–6
6
Winner
1985
Kitzbühel , Austria
Clay
Michael Westphal
7–5, 6–2

Questions and formulas:
Question: Who is the Opponent in the final after 1983 with an Outcome of runner-up?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,(A1="runner-up")*(B1>1983)),5))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F6,(A2:A6="runner-up")*(B2:B6>1983)),5))
Level: medium
Question: What Opponent in the final had a match with a Score in the final of 7–5, 6–2?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,F1="7–5, 6–2"),5))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F6,F2:F6="7–5, 6–2"),5))
Level: medium
Question: What is the Championship with Vitas Gerulaitis as Opponent in the final in a match on Clay Surface?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,(D1="clay")*(E1="vitas gerulaitis")),3))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F6,(D2:D6="clay")*(E2:E6="vitas gerulaitis")),3))
Level: medium