HOW TO RUN A 1v1 SINGLE ELIMINATION TOURNAMENT In a 1v1 tournament you have to have a minimum of 4 players, but unlike a 2v2, you do NOT have to have an even number of people. First, Sign In. Please note that in a roulette tournament, the pairings work differently than in other 1v1 tournaments, because their partner is a bot. You would simply write out the matches as they appear on your screen. For example: player1 vs player2. See more turorials at http://www.truedesigns4u.com/