還暦 かんれき土俵 どひょう りだったら
kanrekidohyō iridattara

Noun
Da Copula

The "-tara" conditional form ("if/when…") of 還暦土俵入り

1. If/when a 60th birthday ring-entering ceremony…; If it were a 60th birthday ring-entering ceremony…

Tara Conditional
Sumo