Highlander, a form of 9v9, is the largest competitive Team Fortress format. Its similarities to average public servers makes it an ideal starting point for for new players, and its requirement that each team has one of every class means no matter what you like to play, there's a spot on the team for you.
Highlander Competitive Format
Highlander is a competitive format with nine players on a team, each representing a different class. The name of the format comes from the quote "There can only be one [of each class]" from Highlander, a movie released in 1986.
Main Article: 5CP
Stopwatch/Attack and Defend
Main Article: Stopwatch/Attack and Defend
Stopwatch maps are won by finishing in a faster time then your opponent. You alternate defense/offense after each round. Time is measured by how long it took you to cap points. For example, if you cap all 5 points on a map in 8:37, the opponent must cap all the points in under 8:37 to win. If you cap 3 points in 5:11, the opponent must either cap 3 points in under 5:11, or cap at least 4 points.
King of the Hill
Main Article: KOTH
-  (A web-based pickup for 6v6/9v9/4v4)
- TF2Pickup.net (a web-based pickup for 6v6/9v9/Ultiduo and BBall)
- Lethal-Zone.eu HL Pickup (a web-based pickup for 9v9 - currectly inactive)
- Continuity Gaming Pickup (a web-based pickup for 6v6, 9v9, Ultiduo and bball - currently down)
Over the time the community has wrote a handful of guides on how to play this popular format, some of them can be seen below: