| # | Name | Score | Name | Score | Wk | Club | Date | Opposition | Ground | Grade | Runs |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | JP Bray | 146 | WTS Porterfield | 54 | 1 | Ireland | 22-May-2007 | Canada | Grace Road Leics | 1stClas | 202 |
| 2 | EC Joyce | 205 | WTS Porterfield | 186 | 2 | Ireland | 24-Oct-2015 | Namibia | Wanderers CC Windhoek | 1stClas | 326 |
| 3 | AC Botha | 157 | EJG Morgan | 209 | 3 | Ireland | 10-Feb-2007 | UAE | Sheikh Zayed Abu Dhabi | 1stClas | 360 |
| 4 | DA Lewis | 113 | GD Harrison | 105 | 4 | Ireland | 11-Jun-1994 | Scotland | Hamilton Cresc.Glasgow | 1stClas | 224* |
| 5 | KJ O'Brien | 171 | AR White | 92 | 5 | Ireland | 11-Oct-2008 | Kenya | Gymkhana, Nairobi | 1stClas | 214* |
| 6 | AC Botha | 186 | AR Cusack | 130 | 6 | Ireland | 09-Aug-2007 | Scotland | Stormont, Belfast | 1stClas | 234 |
| 7 | DT Johnston | 69 | NJ O'Brien | 174 | 7 | Ireland | 06-Mar-2008 | UAE | Sheikh Zayed Abu Dhabi | 1stClas | 163 |
| 8 | MR Adair | 88 | AR McBrine | 86 | 7 | Ireland | 01-Jun-2023 | England | Lord's | Test | 163 |
| 9 | SC Corlett | 53 | A McBrine | 102 | 8 | Ireland | 18-Jul-1987 | Scotland | Coleraine | 1stClas | 150 |
| 10 | JR Graham | 10 | JC Boucher | 85 | 9 | Ireland | 01-Aug-1936 | MCC | Rathmines Dublin | 1stClas | 83 |
| 11 | JO Davy | 51 | P McCrum | 44 | 10 | Ireland | 09-Aug-1997 | Scotland | Malahide | 1stClas | 100* |