| 100% | NORSTER | 7 | Bob —, rugby union lock; 1982 Wales Test debutant against Scotland |
| 74% | REED | 4 | Lou —, rugby union lock; 2012 Wales Test debutant against Scotland |
| 65% | LOUREED | 7 | Rugby union lock whose 2012 Wales Test debut was against Scotland |
| 64% | STAGG | 5 | Peter —, rugby union lock; 1965 Scotland Test debutant against France |
| 64% | JIM | 3 | & 1D Rugby union lock; 2006 Scotland Test debutant against Romania |
| 64% | EIDMAN | 6 | Ian —, rugby union prop; 1983 Wales Test debutant against Scotland |
| 64% | GEOFF | 5 | & 17D Rugby union lock; 1974 Wales Test debutant against Ireland |
| 62% | WHEEL | 5 | Geoff —, rugby union lock; 1974 Wales Test debutant against Ireland |
| 62% | LEAWERE | 7 | Kele —, rugby union lock; 2002 Fiji Test debutant against Scotland |
| 62% | DAUGA | 5 | Benoit —, rugby union lock; 1964 France Test debutant against Scotland |
| 62% | CONDOM | 6 | Jean —, rugby union lock; 1982 France Test debutant against Romania |
| 57% | UTTLEY | 6 | Roger —, rugby union lock; 1973 England Test debutant against Ireland |
| 57% | IEUANEVANS | 10 | Rugby union wing; 1987 Wales Test debutant against France |
| 57% | DEWIBEBB | 8 | Rugby union wing; 1959 Wales Test debutant against England |
| 57% | DEWI | 4 | Rugby union wing; 1959 Wales Test debutant against England |
| 57% | HUWBENNETT | 10 | Rugby union hooker; 2003 Wales Test debutant against Ireland |
| 55% | MEADS | 5 | Colin —, rugby union lock; 1957 New Zealand Test debutant against Australia |
| 54% | SIMON | 5 | & 16A Kenya-born rugby union lock; 1996 England Test debutant against Italy |
| 54% | LEAWERE | 7 | Kele —, rugby union lock whose 2002 Fiji Test debut was against Scotland |
| 54% | DAUGA | 5 | Benoit —, rugby union lock whose 1964 France Test debut was against Scotland |
| 54% | HADEN | 5 | Andy —, rugby union lock; 1977 New Zealand Test debutant against British & Irish Lions |
| 54% | SEANLINEEN | 10 | Rugby union centre whose 1989 Scotland Test debut was against Wales |
| 53% | HADEN | 5 | Andy —, rugby union lock; 1977 New Zealand Test debutant against British and Irish Lions |
| 53% | IEUAN | 5 | & 9D Rugby union wing; 1987 Wales Test debutant against France |