Ireland and Scotland have played each other at rugby union in 144 matches, with Ireland winning 73 times, Scotland winning 66 times and five matches drawn. Since 1989, the teams have competed for the Centenary Quaich during the Six Nations Championship.
<small>Note: Date shown in brackets indicates when the record was or last set.</small>
<small>Up to date as of 14 March 2026</small>