The fastest half century in world cup is by Brendon McCullum of New zealand against Canada at Beausejour Stadium, Gros Islet in St Lucia. he got it off just 20 balls, overtaking Mark Boucher who had made 21 ball fifty against Netherlands less than a week ago. Jim Davison of Canada reached his fifty off just 30 deliveries.
| Fastest century by a batsman in one day world cups. | |||||||
| Batsman (Country) | Score | Balls | 4s | 6s | Versus | Venue | Mon/Yr |
| Mathew Hayden (Aus) | 101 | 66 | 14 | 4 | South Africa | St Kitts | 24 Mar 2007 |
| Jim Davison (Can) | 111 | 67 | 7 | 6 | West Indies | Centurion | 23 Feb 2003 |
| Kapil Dev (Ind) | 175* | 72 | 16 | 6 | Zimbabwe | Tunbridge | 18 Jun 1983 |
| Adam Gilchrist (Aus) | 149 | 72 | 13 | 8 | Sri Lanka | Barbados | 28 Mar 2007 |
| Virendra Sehwag (Ind) | 114 | 81 | 17 | 3 | Bermuda | Trinidad | 19 Mar 2007 |
| Clive Lloyd (WI) | 102 | 82 | 12 | 2 | Australia | Lord's | 21 Jun 1975 |
| Brian Lara (WI) | 111 | 83 | 16 | 0 | South Africa | Karachi | 11 Mar 1996 |
| Brad Hodge (Aus) | 123 | 83 | 8 | 7 | Netherlands | St Kitts | 18 Mar 2007 |
| Sachin Tendulkar (Ind) | 140 | 84 | 16 | 2 | Kenya | Bristol | 23 May 1999 |
| Sunil Gavaskar (Ind) | 108* | 85 | 10 | 3 | New Zealand | Nagpur | 31 Oct 1987 |
| Ricky Ponting (Aus) | 113 | 85 | 9 | 5 | Scotland | St Kitts | 13 Mar 2007 |
| Sanath Jayasuriya (SL) | 109 | 85 | 7 | 7 | Bangladesh | Trinidad | 21 Mar 2007 |
| Fastest fifty by a batsman in one day world cups. | |||||||
| Batsman (Country) | Score | Balls | 4s | 6s | Versus | Venue | Mon/Yr |
| Brendon McCullum (NZ) | 52 | 20 | 1 | 5 | Canada | St Lucia | 22 Mar 2007 |
| Mark Boucher (SA) | 75 | 21 | 9 | 4 | Netherlands | st Kitts | 16 Mar 2007 |
| Mark Boucher (SA) | 52 | 22 | 2 | 5 | West Indies | St Kitts | 10 Apr 2007 |
| Brian Lara (WI) | 73 | 23 | 6 | 4 | Canada | Centurion | 23 Feb 2003 |
| Jim Davison (Can) | 52 | 23 | 9 | 1 | New Zealand | St Lucia | 22 Mar 2007 |
| Wevell Hinds (WI) | 64 | 24 | 7 | 3 | Canada | Centurion | 23 Feb 2003 |
| Jim Davison (Can) | 75 | 25 | 9 | 4 | New Zealand | Benoni | 3 Mar 2003 |
| Andy Blignaut (Zim) | 54 | 25 | 8 | 2 | Australia | Bulawayo | 24 Feb 2003 |
