| # | Name | Score | Name | Score | Wk | Club | Date | Opposition | Ground | Grade | Runs |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | C Currie | 91 | A Poynter | 195 | 3 | Clontar | 29-Jun-2014 | St Johnston | Castle Avenue | BKISC | 296* |
| 2 | J Anderson | 178 | Swapnil Modgill | 115 | 2 | Merrion | 09-Jun-2024 | The Hills | Anglesea Road | BKISC | 284 |
| 3 | S Dyer | 130 | NG Jones | 124 | 2 | CSN | 08-May-2010 | Cork County | Stormont | HKBKISC | 259 |
| 4 | Brenton Parchment | 171 | EJ Richardson | 120 | 4 | NCounty | 06-Jun-2015 | Bready | Inch | BKISC | 251* |
| 5 | J Hall | 108 | WK McCallan | 145 | 1 | Warings | 08-May-2010 | Old Belvedere | Cabra | HKBKISC | 242 |
| 6 | JP Bray | 141 | D Ford | 96 | 2 | Phoenix | 05-Jul-2003 | Limavady | Phoenix Park | Royal L | 237 |
| 7 | Nikolai Smith | 106 | Oliver Metcalfe | 123 | 1 | Instoni | 25-May-2019 | Cork County | Shaws Bridge | CCBKISC | 236* |
| 8 | ? | 3 | Limavad | 12-Aug-2000 | North Down | Limavady | Royal L | 231 | |||
| 9 | R Simpson | 103 | Robert (Jun) J Rankin | 128 | 2 | Lisburn | 09-May-2015 | Glendermott | The Rectory | BKISC | 225* |
| 10 | ? | 2 | Brigade | 22-May-1993 | Leinster | Beechgrove | Schwepp | 225 | |||
| 11 | C McCrum | 125 | Paul McCrum | 98 | 1 | North D | 19-Aug-1995 | Downpatrick | The Meadow, Downpatrick | Royal L | 223* |
| 12 | A Dennison | 105 | J Hall | 175 | 1 | Warings | 22-Jul-2018 | Pembroke | Sydney Parade | CCBKISC | 221 |
| 13 | P McCall | 101 | I McClatchey | 119 | 1 | Bangor | 03-Jun-1995 | Leinster | Rathmines | Royal L | 220* |
| 14 | J McBrine | 108 | A Scott | 155 | 2 | Doneman | 25-May-1991 | Phoenix | The Holm | Schwepp | 215 |
| 15 | T Fisher | 127 | C Mullen | 119 | 2 | Railway | 11-Jun-2011 | Eglinton | Park Avenue | HKBKISC | 212 |
| 16 | M Collier | 58 | B Coghlan | 157 | 1 | Clontar | 08-Jun-2014 | Fox Lodge | Ballymagorry | BKISC | 209 |
| 17 | Diarmaid Tucker | 93 | Fiachra Tucker | 116 | 1 | Pembrok | 17-Jun-2018 | North Down | The Green, Comber | CCBKISC | 207 |
| 18 | D van Zyl | 104 | Fintan McAllistar | 150 | 1 | Rush | 17-May-2008 | Lisburn | Kenure | HKBKISC | 203 |
| 19 | Des (Decker) Curry | 101 | AN Murphy | 97 | 4 | Ardmore | 08-Jun-2014 | Merrion | Anglesea Road | BKISC | 202 |
| 20 | J Black | 91 | ND Carson | 141 | 1 | Instoni | 19-Jun-1999 | Fox Lodge | Shane Park | Royal L | 202 |