65 balls: Imran Nazir (189) Zarai Taraqiati Bank Ltd v Sui Northern Gas Pipelines Ltd at Islamabad, 2013
83 balls: SR Watson (185*) Australia v Bangladesh at Mirpur, 2011
84 balls: LE Bosman (150) Dolphins v Warriors at Pietermaritzburg, 2010
88 balls: MM Ali (158) Worcestershire v Sussex at Horsham, 2011
89 balls: RN ten Doeschate (180) Essex v Scotland at Chelmsford, 2013