| 1 | 205 | WTS Porterfield & PR Stirling | Ireland v United Arab Emirates | Old Hararians, Harare | 2017/18 |
| 2 | 201 | WTS Porterfield & A Balbirnie | Ireland v United Arab Emirates | ICC Cricket Academy Ground, Dubai | 2017/18 |
| 3 | 138 | EC Joyce & A Balbirnie | Ireland v Zimbabwe | Blundstone Arena, Hobart | 2014/15 |
| 3 | 138 | A Balbirnie & NJ O'Brien | Ireland v Scotland | Harare Sports Club, Harare | 2017/18 |
| 4 | 227 | WTS Porterfield & KJ O'Brien | Ireland v Kenya | Ruaraka Sports Club Ground, Nairobi | 2006/07 |
| 5 | 181* | EJG Morgan & KJ O'Brien | Ireland v Canada | Willowmoore Park Main Oval, Benoni | 2008/09 |
| 6 | 162 | KJ O'Brien & AR Cusack | Ireland v England | M Chinnaswamy Stadium, Bangalore | 2010/11 |
| 7 | 74 | AR White & KJ O'Brien | Ireland v England | Civil Service Cricket Club, Stormont, Belfast | 2006 |
| 8 | 73 | EJG Morgan & WK McCallan | Ireland v Scotland | Cambusdoon New Ground, Alloway | 2006 |
| 9 | 43* | GC Wilson & AR McBrine | Ireland v Zimbabwe | Harare Sports Club, Harare | 2015/16 |
| 10 | 54 | AR McBrine & WB Rankin | Ireland v Sri Lanka | The Village, Malahide, Dublin | 2016 |