SUMDOG HOLY SPIRIT INTERSCHOOLS COMPETITIONTo take part in Our Holy Spirit Sumdog contest, the children simply play Sumdog’s online maths games, any time and then during the contest week. 5TH - 11TH JUNE. Boost children’s confidence and skills with personalised maths questions! We've matched your Login details so it's easier for you. So, you can use THE SAME username and password as you do for your Times Tables Rockstars Login.