Table:
text: Wembley Championships
Champions
Champions
Year_ Champion Runner_up Score Surface
1950 Pancho Gonzales Welby Van Horn 6–3, 6–3, 6–2 Indoor
1951 Pancho Gonzales Pancho Segura 6–2, 6–2, 2–6, 6–4 Indoor
1952 Pancho Gonzales Jack Kramer 3–6, 3–6, 6–2, 6–4, 7–5 Indoor
1953 Frank Sedgman Pancho Gonzales 6–1, 6–2, 6–2 Indoor
1954–1955 Not Held Not Held Not Held Not Held
1956 Pancho Gonzales Frank Sedgman 4–6, 11–9, 11–9, 9–7 Indoor
1957 Ken Rosewall Pancho Segura 1–6, 6–3, 6–4, 3–6, 6–4 Indoor
1958 Frank Sedgman Tony Trabert 6–4, 6–3, 6–4 Indoor
1959 Mal Anderson Pancho Segura 4–6, 6–4, 3–6, 6–3, 8–6 Indoor
1960 Ken Rosewall Pancho Segura 5–7, 8–6, 6–1, 6–3 Indoor
1961 Ken Rosewall Lew Hoad 6–3, 3–6, 6–2, 6–3 Indoor

text: Wembley Championships
Champions
Champions
Year_ Champion Runner_up Score Surface
1962 Ken Rosewall Lew Hoad 6–4, 5–7, 15–13, 7–5 Indoor
1963 Ken Rosewall Lew Hoad 6–4, 6–2, 4–6, 6–3 Indoor
1964 Rod Laver Ken Rosewall 7–5, 4–6, 5–7, 8–6, 8–6 Indoor
1965 Rod Laver Andrés Gimeno 6–2, 6–3, 6–4 Indoor
1966 Rod Laver Ken Rosewall 6–2, 6–2, 6–3 Indoor
1967 Rod Laver Ken Rosewall 2–6, 6–1, 1–6, 8–6, 6–2 Indoor
Open Era Open Era Open Era Open Era Open Era
1968 Ken Rosewall John Newcombe 6–4, 4–6, 7–5, 6–4 Indoor
1969 Rod Laver Tony Roche 6–4, 6–1, 6–3 Indoor
1970 Rod Laver Cliff Richey 6–3, 6–4, 7–5 Indoor
1971 Ilie Năstase Rod Laver 3–6, 6–3, 3–6, 6–4, 6–4 Indoor

Question: What is champion Ken Rosewall's score in 1957 at Wembley Championships?