Australian Simon O'Donnel was able to cross the half-century barrier in 18 balls against Sri Lanka at Sharjah.
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New Zealand Batsman Brendon McCullum hit an half-century in 18 deliveries against England at Wellington.
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Australian Glenn Maxwell smashed an half-century in 18 balls against India at Bengaluru.
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Pakistani all-rounder Shahid Afridi has thrice managed to breach the 50 run mark in 18 deliveries. He achieved the feat against Sri Lanka at Nairobi, Bangladesh at Mirpur and against the Netherlands at Colombo.
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New Zealander Martin Guptill also breached the 50 run mark in 17 deliveries againt Sri Lanka at Christchurch.
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Kusal Perera also was able to hit a quickfire 50 in 17 balls against Pakistan at Pallekele.
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Sri Lankan Sanath Jayasuriya held the record for the fastest half century for more than 18 years after he was able to smash an half-century in 17 balls against Pakistan at Singapore.
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South African AB De Villiers holds the record for the fastest half-century. He needed only 16 balls to breach the 50 run barrier at Johannesburg.
