"Knockout 20" refers to the 20th anniversary of Knockout, which is celebrated with a week of events and shows, notably planned for July 2025. One specific location for Knockout events is the Knock Out Comedy Club at Oudegracht 205, 3511 NH Utrecht for certain events, and there are also other Knockout-related events like Knockout Outdoor in Sydney and Knockout Festival in Karlsruhe, Germany. If the inquiry is about the "Knockout 20" anniversary event in 2025, it is being celebrated with a series of shows, including a vinyl happy hour event in San Francisco at 3223 Mission St., and various other activities. If the reference is to a specific Knockout event on November 20, 2025, one such event is Knock Out Comedy Club in Utrecht, Netherlands. Please specify if a different Knockout 20 location or event is meant, such as a festival, tournament knockout stage, or another series. Otherwise, main events related to "Knockout 20" appear to be:

• Knock Out Comedy Club, Oudegracht 205, Utrecht (Nov 20, 2025)
• Knockout's 20 Year Anniversary shows (July 2025, e.g., San Francisco)
• Knockout Outdoor in Sydney (October 2025)
• Knockout Festival in Karlsruhe, Germany (December 2025)

These are the relevant and known locations and dates associated with "Knockout 20" events in 2025.