Table:
text: Kevin Curren
Singles finals 13 (5-8)
Singles finals 13 (5-8)
Outcome Date_ Championship Surface Opponent Score
Runner-up 1985 Wimbledon Grass Boris Becker 3–6, 7–6 (7–4) , 6–7 (3–7) , 4–6
Winner 1986 Atlanta , U.S. Carpet Tim Wilkison 7–6 (7–5) , 7–6 (7–2)
Runner-up 1986 Scottsdale , U.S. Hard John McEnroe 3–6, 6–3, 2–6
Runner-up 1988 Toronto , Canada Hard Ivan Lendl 6–7 (10–12) , 2–6
Winner 1989 Frankfurt , Germany Carpet Petr Korda 6–2, 7–5

Question: What is the opponent of the match in 1989 for Kevin Currens singles final 13 (5-8)?