British Best All-Rounder
Winners
Table:
Year

Winner (men)

Club

Average speed (mph)

1947

Albert Derbyshire

Calleva RC

22.744

1946

Albert Derbyshire

Calleva RC

22.843

1945

Jock Allison

Musselburgh RC

22.479

1944

Albert Derbyshire

Calleva RC

23.549

1939

1938

H. 'Shake' Earnshaw

Monkton CC

22.627

1937

Cyril Heppleston

Yorkshire RC

22.348

1936

Charles Holland

Midland C&AC

1935

Stanley W. Miles

Century RC

21.809

1934

Ernest J. Capell

Allondon RC

21.622

1933

Frank Southall

Norwood Paragon CC

1932

Frank Southall

Norwood Paragon CC

1931

Frank Southall

Norwood Paragon CC

1930

Frank Southall

Norwood Paragon CC

21.141

Considering the table called British Best All-Rounder — section "Winners", write a short sentence answering the following question: How successful was Frank Southall? Return your answer as JSON: {"answer": "YOUR ANSWER"}.

answer: Frank Southall averaged 21.141 mph and won again the following three years.