UFC Fight Night 18: Condit vs. Kampmann was a mixed martial arts event held by the Ultimate Fighting Championship (UFC) on April 1, 2009. The event was broadcast on Spike TV, as a prelude to the premiere of The Ultimate Fighter: United States vs. United Kingdom. The main event featured the debut of former WEC Welterweight Champion Carlos Condit – riding an eight fight win streak – in the main event against Martin Kampmann.