| 100% | LEAMY | 5 | Denis —, rugby union back-rower; 2004 Ireland Test debutant against United States of America |
| 83% | TOMMYBOWE | 9 | Rugby union wing; 2004 Ireland Test debutant against United States of America |
| 46% | REES | 4 | Tom —, rugby union back-rower; 2007 England Test debutant against Scotland |
| 44% | SIMMONDS | 8 | Sam —, Exeter Chiefs rugby union back-rower; 2017 England Test debutant against Argentina |
| 42% | PHILORR | 7 | Rugby union prop; 1976 Ireland Test debutant against France |
| 41% | TOMKIERNAN | 10 | Rugby union full-back; 1960 Ireland Test debutant against England |
| 40% | PETER | 5 | & 23A Rugby union flanker; 2012 Ireland Test debutant against Italy |
| 39% | HUWBENNETT | 10 | Rugby union hooker; 2003 Wales Test debutant against Ireland |
| 38% | ORR | 3 | Phil —, rugby union prop; 1976 Ireland Test debutant against France |
| 38% | MCLENNAN | 8 | Freddie —, rugby union wing; 1977 Ireland Test debutant against France |
| 38% | OREILLY | 7 | Tony —, rugby union wing; 1955 Ireland Test debutant against France |
| 38% | SLATTERY | 8 | Fergus —, rugby union flanker; 1970 Ireland Test debutant against South Africa |
| 38% | REES | 4 | Tom —, rugby union back-rower whose 2007 England Test debut was against Scotland |
| 37% | RYAN | 4 | Donnacha —, rugby union flanker/lock; 2008 Ireland Test debutant against Argentina |
| 37% | GEOFF | 5 | & 17D Rugby union lock; 1974 Wales Test debutant against Ireland |
| 37% | KELCOSLETT | 10 | Rugby union full back; 1962 Wales Test debutant against England |
| 37% | OREILLY | 7 | Tony —, rugby union wing; 1955 Ireland Test debutant against France in the Five Nations |
| 36% | RORYBEST | 8 | 2004-19 Ulster Rugby hooker; 2005 Ireland Test debutant against New Zealand |
| 36% | DANPARKS | 8 | Australia-born rugby union fly-half; 2004 Scotland Test debutant against Wales |
| 36% | ELLIS | 5 | Harry —, rugby union scrum-half; 2004 England Test debutant against South Africa |
| 36% | WHEEL | 5 | Geoff —, rugby union lock; 1974 Wales Test debutant against Ireland |
| 36% | UTTLEY | 6 | Roger —, rugby union lock; 1973 England Test debutant against Ireland |
| 36% | TUKALO | 6 | Iwan —, rugby union wing; 1985 Scotland Test debutant against Ireland |
| 36% | UNDERWOOD | 9 | Rory —, rugby union wing; 1984 England Test debutant against Ireland |
| 36% | REES | 4 | Clive —, rugby union winger; 1974 Wales Test debutant against Ireland |
| 36% | BREW | 4 | Aled —, rugby union wing; 2007 Wales Test debutant against Ireland |
| 35% | REES | 4 | Clive —, former rugby union wing; 1974 Wales Test debutant against Ireland |
| 35% | DERMODY | 7 | Clarke —, rugby union prop; 2006 New Zealand Test debutant against Ireland |