What happened
Nintendo announced the Mario Kart World European September Slipstream, a 36-hour online event for eligible European players. It starts at 9:00 UK time on September 26 and ends at 21:00 UK time on September 27. This is a separate event from September's North American Mario Kart World Open and uses a different event code and rules.
The entry route is Online Play, then Minus to search for an event, followed by Event ID 4245. Nintendo says the event begins every participant at a 3,000 rating and lets players practise before the official window by entering the same event code.
Direct answer: Mario Kart World European September Slipstream runs September 26 at 9:00 UK time through September 27 at 21:00 UK time. Search for Event ID 4245; eligible players who complete at least eight races receive 50 Platinum Points.
The practical change: Update the game, confirm an active Nintendo Switch Online membership, search for Event ID 4245 from Online Play and complete at least eight races inside the event window if you want the stated Platinum Points reward.
What is confirmed
- Mario Kart World European September Slipstream is scheduled for September 26 at 9:00 UK time through September 27 at 21:00 UK time.
- Entry requires Mario Kart World on Nintendo Switch 2, the latest game update, internet access and an active Nintendo Switch Online membership, including a free trial where available.
- The event code is 4245 and the starting rating is 3,000; players can use the code to practise before the event starts.
- Nintendo plans to publish the global top 100 about one week after the event and to list the top-ranked player for each character.
- Players who complete at least eight races during the event receive 50 My Nintendo Platinum Points, according to Nintendo's event page.
What this means for players
The event's reward has a clear completion threshold: starting eight races is not the same as completing eight races. Players should leave enough time inside the 36-hour window to finish the required count.
This is not a general worldwide tournament. Nintendo's eligibility list covers specified European countries, so players outside those countries should not assume that the event code or reward applies to their account region.
What is still unconfirmed
Nintendo says the leaderboards will appear about one week later but does not give an exact publication time. The announcement does not promise prizes beyond the stated 50 Platinum Points and leaderboard recognition, or expand eligibility beyond the listed European countries.
What to do next
- 01Install the latest Mario Kart World update and confirm that Nintendo Switch Online is active before the event window opens.
- 02Open Online Play, press Minus, choose Search for an Event and enter 4245; use the pre-event practice option to confirm the route works.
- 03Complete at least eight races between the stated start and end times if you want the participation reward, then wait for Nintendo's official leaderboard publication rather than using an unofficial ranking screenshot.
