Club champ is 36 holes medal play on one weekend. I think the most popular tournament format is a best ball match play team event with two man teams. Usually 8 to 10 flights by handicap with 6 teams in each flight. 9 hole matches: 3 matches on Saturday, 2 on Sunday. You play every team in your flight H2H. Most of the flights are so evenly matched the matches are played scratch. Sunday afternoon, after lunch, the flight winners play an elimination match (derby style) until the overall champions are determined. No handicap strokes in this match, but the flights are spread out over four sets of tees—the high cappers from the foreword tees and so on back to the championship flight winners playing the tips. Seems a little odd, but it works out and the best team usually wins.
I think everyone enjoys the intensity of nine hole matches. 2 points for a win, 1point for a halve, 0 for a loss. Everyone understands that matches must be played in less than 2 hours, so it is sort of self-policing on the pace. The elimination round is always fairly rowdy with 8-10 teams starting out and lots needling going on from the large gallery. I’m not sure, but I think two teams are eliminated on each hole until just two are left, then it is sudden death match play. Surprisingly, good golf is still played. I watched one that went 5 holes halved with birdies and ended on the 6th hole (the 10th overall) when a team lost with a par.