Table:
text: Ismail El Shafei
Grand Slam Success
Grand Slam Success
Tournament _1968 _1969 _1970 _1971 _1972 _1973 _1974 _1975 _1976 _1977 _1978 _1979 Career_SR Career_W_L Career_Win_
Wimbledon 2R 1R 3R 1R A A QF 2R 3R 1R 1R 1R 0 / 11 10–11 47.61
US Open A 3R 1R 1R A 3R 4R A 2R A A A 0 / 6 8–6 53.33
Win–Loss 1–1 4–3 2–2 2–3 0–0 2–2 8–3 1–2 3–3 1–2 0–3 0–1 0 / 26 24–26 48.00

Question: What is Ismail El Shafei's Grand Slam success at US Open 1977?