Table:
text: Thomaz Koch
Open era singles finals (3-2)
Open era singles finals (3-2)
Outcome Date_ Championship Surface Opponent_in_the_final Score_in_the_final
Winner 1969 Caracas, Venezuela Clay Mark Cox 8–6, 6–3, 2–6, 6–4
Winner 1969 Washington, U.S. Hard Arthur Ashe 7–5, 9–7, 4–6, 2–6, 6–4
Winner 1971 Caracas, Venezuela Clay Manuel Orantes 7–6, 6–1, 6–3
Runner-up 1976 Khartoum, Sudan Hard Mike Estep 4–6, 7–6, 4–6, 3–6
Runner-up 1976 Nuremberg, Germany Carpet Frew McMillan 6–2, 3–6, 4–6

Question: From Thomaz Koch's list, tell me the total number of dates for the singles final of the carpet open era (3-2)?

Question: Tell me Thomaz Koch's opponent at 6:2, 3:6, 4:6 in a tennis match in the Open Era singles final (3:2)?