Put your power, strength, and endurance to the test alongside Conor McGregor and a group of badass competitors in the first fitness event of its kind. Make history, break records, and prove you’ve got what it takes.

3KO will test your mettle across the three dimensions of McGregor FAST training: power, strength, and endurance. Part technical, part twisted, and a whole lot of fun, each stage of this unprecedented competition will keep your mind and body guessing as you grind your way to the finish line. Think you can handle it?

- Conor McGregor

3KO features 12 unique stages designed to test you across the three dimensions of FAST athleticism: power, strength, and endurance. Competitors must complete each grueling challenge before advancing to the next. Whether you’re aiming to finish first or just cross the finish line, 3KO is a race against the clock to see how quickly you can knock out every movement. The event lasts between 60 and 90 minutes, depending on fitness level.

3KO is inspired by the Trinity Knot, a well-known Celtic symbol that represents belief in the unbreakable power of three interwoven elements.

For 3KO, these three elements reference the core zones of the McGregor FAST system of training: power, strength, and endurance.

Competitors who succeed in pushing themselves through all 12 stages and across the finish line will receive a 3KO Trinity Knot Medal as a token of their memorable performance.

Get ready for battle with our 3KO training program on the FAST app. Available for iOS and Android. Start your free trial today.