| Balls |
Score |
| 427 | 501* | BC Lara | Warwickshire v Durham | Edgbaston, Birmingham | 1994 |
| 383 | 379 | PP Shaw | Mumbai v Assam | Amingaon Cricket Ground, Guwahati | 2022/23 |
| 181 | 366 | TD Agarwal | Hyderabad v Arunachal Pradesh | NexGen Cricket Ground, Secunderabad | 2023/24 |
| 167 | 281 | C Munro | Auckland v Central Districts | Nelson Park, Napier | 2014/15 |
| 156 | 247* | ID Blackwell | Somerset v Derbyshire | County Ground, Taunton | 2003 |
| 136 | 234 | AHT Donald | Glamorgan v Derbyshire | Penrhyn Avenue, Rhos-on-Sea, Colwyn Bay | 2016 |
| 89 | 200* | Shafiqullah Shinwari | Kabul Region v Boost Region | Kunar Cricket Ground, Asadabad | 2017/18 |
| 88 | 161 | BA Stokes | Durham v Worcestershire | County Ground, New Road, Worcester | 2022 |
| 50 | 156 | MW Goodwin | Sussex v Middlesex | John Walker's Ground, Southgate | 2006 |
| 29 | 114* | ML Pettini | Essex v Leicestershire | Grace Road, Leicester | 2006 |
| 28 | 78 | RP Das | Assam v Hyderabad | Rajiv Gandhi International Stadium, Uppal, Hyderabad | 2022/23 |
| 26 | 75* | RJ Nicol | Gloucestershire v Yorkshire | North Marine Road, Scarborough | 2012 |
| 25 | 71 | KT Kasuza | Mountaineers v Southern Rocks | Mutare Sports Club, Mutare | 2012/13 |
| 19 | 70* | EJH Eckersley | Leicestershire v Essex | Grace Road, Leicester | 2012 |
| 18 | 60 | MK van Vuuren | Eastern Province B v Griqualand West | Standard Cricket Club Ground, Cradock | 1984/85 |
| 17 | 56 | Khalid Mahmood | Gujranwala v Sargodha | Jinnah Stadium, Gujranwala | 2000/01 |
| 15 | 55* | JL Langer | Middlesex v Northamptonshire | County Ground, Northampton | 1998 |
| 12 | 50* | WA White | Leicestershire v Essex | Grace Road, Leicester | 2012 |
| 9 | 38 | WA Eranga | Sri Lanka Air Force Sports Club v Saracens Sports Club | Air Force Ground, Colombo | 2008/09 |
| 8 | 28* | WM Gifford | Loughborough University Centre of Cricketing Excellence v Yorkshire | Headingley, Leeds | 2007 |
| 7 | 25* | RC Russell | Gloucestershire v Essex | Southchurch Park, Southend-on-Sea | 1992 |
| 6 | 24* | AL Jones | Glamorgan v Warwickshire | Edgbaston, Birmingham | 1983 |
| 6 | 24* | AC Bedade | Baroda v Maharashtra | Nehru Stadium, Pune | 2001/02 |
| 6 | 24* | JH Hinrichsen | North West v Boland | Senwes Park, Potchefstroom | 2018/19 |
| 4 | 22* | Fabid Ahmed | Kerala v Goa | Brabourne Stadium, Mumbai | 2016/17 |
| 3 | 18* | D Wilson | Yorkshire v Marylebone Cricket Club | North Marine Road, Scarborough | 1965 |
| 3 | 18* | AJ Blake | Kent v Derbyshire | The 3aaa County Ground, Derby | 2016 |
| 2 | 12 | M Muralitharan | Kent v Leicestershire | Grace Road, Leicester | 2003 |
| 2 | 12* | SR Dubey | India A v South Africa A | Greenfield Stadium, Karyavattom | 2019/20 |
| 1 | 6* | MW Pringle | Western Province v Natal | Newlands, Cape Town | 1989/90 |
| 1 | 6* | DJ Hunter | Otago v Auckland | Carisbrook, Dunedin | 1990/91 |
| 1 | 6* | ST Jayasuriya | Sri Lanka v England | Sinhalese Sports Club Ground, Colombo | 1992/93 |
| 1 | 6* | WJ Cronje | South Africans v New Zealand Academy | Trafalgar Park, Nelson | 1994/95 |
| 1 | 6* | DA Kenway | Hampshire v Derbyshire | The Rose Bowl, Southampton | 2001 |
| 1 | 6* | Niamur Rashid | Dhaka Division v Khulna Division | Dhanmondi Cricket Stadium, Dhaka | 2001/02 |
| 1 | 6* | Z Khan | Worcestershire v Surrey | The Brit Oval, Kennington | 2006 |
| 1 | 6* | PJC Hoffmann | Scotland v Netherlands | Mannofield Park, Aberdeen | 2007 |
| 1 | 6* | JM Holland | Victoria v Western Australia | Western Australia Cricket Association Ground, Perth | 2011/12 |
| 1 | 6* | CG Wijesinghe | Panadura Sports Club v Burgher Recreation Club | Burgher Recreation Club Ground, Colombo | 2012/13 |
| 1 | 6* | PLS Gamage | Chilaw Marians Cricket Club v Tamil Union Cricket and Athletic Club | P Sara Oval, Colombo | 2013/14 |
| 1 | 6* | I Dev Singh | Jammu and Kashmir v Puducherry | Sri Sivasubramaniya Nadar College of Engineering Ground, Chennai | 2021/22 |
| 1 | 6* | MR Quinn | Kent v Warwickshire | Edgbaston, Birmingham | 2022 |
| 1 | 6* | SS Coomaraswamy | Sri Lanka Navy Sports Club v Bloomfield Cricket and Athletic Club | Navy Ground, Welisara | 2022/23 |
| 1 | 6* | PM Datey | Madhya Pradesh v Vidarbha | Holkar Stadium, Indore | 2022/23 |
| 1 | 6* | N Rana | Delhi v Mumbai | Feroz Shah Kotla, Delhi | 2022/23 |
| 1 | 6* | Agha Salman | Pakistan v Sri Lanka | Galle International Stadium, Galle | 2023 |
| 1 | 6* | AMS Sahahab | Dambulla District v Kandy District | Rangiri Dambulla International Stadium, Dambulla | 2023/24 |
