Below are the official rules of Euchre according to Hoyle.

1. The rank of cards in each non-trump suit: ace (the highest), king, queen, jack, 10, 9 (the lowest).
2. Five cards are dealt to each player. The pack is placed face-down, with the top card turned face-up. This card determines the trump suit for the deal.
3. If all players pass, the first player then has the right to name the trump suit, or to pass. (If the first player passes, the next player has an opportunity to name a trump suit, and so on.) The suit of the rejected card cannot be used for trumps. If all players pass a second time around, the cards are thrown in for a new deal.
4. In play, players must follow suit of whatever card is lead (if able). A trick is won by the highest trump or by the highest card of the suit led. The winner of a trick leads the next card.
5. In the traditional scoring, the side that called trumps wins one point for making three or four tricks; for making five tricks or march, they score two points. For the person playing alone: three or four tricks gain one point; march nets four points. If the side that called trumps is euchred, their opponents win two points.

Our Tournament House Rules

1. You do NOT have to have a trump card in your hand to order up your opponent.
2. If you order up your partner, you automatically go alone.
3. If a jack is turned up and your are the dealer, but have no other card of that suit (a natural) but have the other jack of the same colour (example you have the Jack of hearts in your hand, and the Jack of diamonds is turned up, but you have no diamonds in your hand) you can NOT pick up the Jack of diamonds and make it trump. You must have at least ONE diamond in your hand, because until diamonds is trump the Jack of hearts is NOT considered a diamond, its just a jack of hearts.
4. We play “stick the dealer” – if players pass on making it trump and the dealer also passes and turns the card down, and the opportunity to call trump comes back to the dealer a second time, we do NOT throw the cards in, the dealer MUST call trump, but can not call trump the suit that has been turned down. For speed, there are no re-deals in our tournament play.
5. Normal Euchre scoring applies in tournament play. you score on the score sheet as opposed to using cards to track scores.
6. We play 8 hands of Euchre per round. Each person deals twice.
7. We do not score until 10 points in a round, we score all points scored, so it is possible to score more than 10 points in eight hands. Play continues to complete all eight hands regardless of score tally.
8. When scoring for a hand, you and your partner share the score for the hand.
9. Scores from each hand are added to give a round score. Round scores are then tallied to get a total for each player. This tally is used to determine the top three players for the tournament.