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How to Join the Mario Tennis Fever Open on October 24, 2026

By Freedom251 Team · · 3 min read

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The Mario Tennis Fever Open takes place Saturday, October 24, 2026. Register through Battlefy by 9:30 a.m. Pacific Time that day; the opening bracket starts at 10:00 a.m. PT. Legal residents of the United States (including Washington, D.C.) and Canada must be at least 13, while legal residents of Mexico must be at least 18. Entry is free, but you need access to a Nintendo Switch 2, Mario Tennis Fever, a Nintendo Account, reliable high-speed internet, and a Nintendo Switch Online membership.

When to register and play

Nintendo’s registration window runs from October 5, 2026, at 9:00 a.m. PT through October 24 at 9:30 a.m. PT. The initial bracket is scheduled to begin at 10:00 a.m. PT on October 24. The Top 4 are scheduled for a livestream beginning at 1:00 p.m. PT, and the official rules summary estimates the tournament will conclude at approximately 4:00 p.m. PT. The announcement does not name a livestream platform or provide a viewing link.

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These times are Pacific Time. Convert them to your local time zone and leave time to complete registration before the deadline. Nintendo says potential winners will be notified within 10 days after the tournament.

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Who can enter, and what do you need?

Nintendo of America Inc. is sponsoring the event. Eligibility depends on legal residence and age:

#1 Best Overall
Mario Tennis™ Fever (Nintendo Switch 2)
  • Swing onto the court for explosive action in the latest Mario Tennis game
  • Combine topspins, slices, and other shots with new defensive maneuvers to outpace opponents
  • Keep a rally going, build up your gauge, and unleash powerful Fever Shots
  • Equip Fever Rackets to add effects to your Fever Shots like freezing the court or shrinking opponents
  • Mix and match over 30 Fever Rackets with 38 playable characters to find your own strategy
  • United States, including Washington, D.C.: age 13 or older.
  • Canada: age 13 or older.
  • Mexico: age 18 or older.

Players must have access to a Nintendo Switch 2 system and Mario Tennis Fever, plus a Nintendo Account, reliable high-speed internet, and any Nintendo Switch Online membership. Nintendo states that no purchase is necessary to enter. The stated access requirements do not mean you must buy the game or console for this tournament; buying either does not improve your odds.

How to register

  1. Open Nintendo’s Mario Tennis Fever Open registration page on Battlefy.
  2. Complete the registration form before October 24, 2026, at 9:30 a.m. PT. Nintendo says the form may ask for your full name, home address (no P.O. boxes), phone number, date of birth, email address, in-game name, 12-digit Nintendo Switch Friend Code, Nintendo Account email, and Nintendo Account User Support Number.
  3. Follow the instructions provided through Battlefy and keep an eye on the email address you submit for event updates.

Registration opened October 5, 2026, at 9:00 a.m. PT. Nintendo lists Mario Tennis Fever for Nintendo Switch 2 at a regular price of $69.99, but that price is not an entry fee and purchase is not required.

Rank #2
Mario Tennis Fever Standard - Nintendo Switch 2 [Digital Code]
  • Swing onto the court for explosive action in the latest Mario Tennis game
  • Combine topspins, slices, and other shots with new defensive maneuvers to outpace opponents
  • Keep a rally going, build up your gauge, and unleash powerful Fever Shots
  • Equip Fever Rackets to add effects to your Fever Shots like freezing the court or shrinking opponents
  • Mix and match 30 Fever Rackets with 38 playable characters—the most in series history—to find your own strategy

How the tournament works

The event begins with one-on-one, best-of-three matches in a single-elimination bracket. When four players remain, the Top 4 move to a double-elimination bracket that Nintendo plans to livestream.

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Nintendo lists these settings for both brackets:

  • Singles, private match, and Stadium Court (Grass)
  • All characters and Fever Rackets allowed, with one Fever Racket
  • Extended Play, one set, two games, and tiebreaker enabled
  • Standard Ball

Prizes

Nintendo lists eight prize packages, with approximate retail values (ARV) in U.S. dollars:

Rank #3
New Super Mario Bros. U Deluxe - US Version
  • A variety of playable characters are available, some with unique attributes that affect gameplay and platforming physics.
  • Younger and less-experienced players will love playing as Toadette, who is brand new to both games, and Nabbit, who was formerly only playable in New Super Luigi U. Both characters offer extra assistance during play.
  • Multiplayer sessions are even more fun, frantic, and exciting thanks to entertaining character interactions. Need a boost? Try jumping off a teammate’s head or getting a teammate to throw you.
  • Features a wealth of help features, like a Hints gallery, reference videos, and a Super Guide in New Super Mario Bros. U that can complete levels for you if they’re giving you trouble.
  • Three additional modes—Boost Rush, Challenges, and Coin Battle—mix up gameplay and add replayability, while also upping the difficulty for players who want to try something harder. Players can use their Mii characters in these modes.
Prize Packages Published ARV Items listed by Nintendo
Grand Prize 1 $468.93 Trophy, NintendoVS duffle bag, Mario Tennis Fever convertible cinch, visor, water bottle, hand towel, and sweatband
First Prize 1 $468.93 Trophy, NintendoVS duffle bag, Mario Tennis Fever convertible cinch, visor, water bottle, hand towel, and sweatband
Second Prize 1 $468.93 Trophy, NintendoVS duffle bag, Mario Tennis Fever convertible cinch, visor, water bottle, hand towel, and sweatband
Third Prize 1 $168.94 NintendoVS duffle bag, Mario Tennis Fever convertible cinch, visor, water bottle, hand towel, and sweatband; no trophy is listed
Fourth Prize 4 $88.95 per package Mario Tennis Fever convertible cinch, visor, water bottle, hand towel, and sweatband

Nintendo gives the total approximate retail value for all packages as $1,931.53. The published values are approximate, not cash awards.

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Official event details

Nintendo’s official rules summary states: “Skill of participating players determines the winner(s).” Consult the Battlefy event page for the registration form and event information.

Quick Recap

Bestseller No. 1
Mario Tennis™ Fever (Nintendo Switch 2)
Mario Tennis™ Fever (Nintendo Switch 2)
Swing onto the court for explosive action in the latest Mario Tennis game; Keep a rally going, build up your gauge, and unleash powerful Fever Shots
$69.00
Bestseller No. 2
Mario Tennis Fever Standard - Nintendo Switch 2 [Digital Code]
Mario Tennis Fever Standard - Nintendo Switch 2 [Digital Code]
Swing onto the court for explosive action in the latest Mario Tennis game; Keep a rally going, build up your gauge, and unleash powerful Fever Shots
$69.99
Rank #4
EsteaCovo Tennis Rackets for Nintendo Switch 2 Mario Tennis Fever, 2 Pack Game Accessories for Mario Tennis Aces,Handle Grip Holder for NS2 Joy-Con (B/O)
  • 𝐏𝐞𝐫𝐟𝐞𝐜𝐭 𝐂𝐨𝐦𝐩𝐚𝐭𝐢𝐛𝐢𝐥𝐢𝐭𝐲 : Specially designed for Nintendo Switch 2 Joy‑Con, ideal for Mario Tennis Fever and all motion‑control tennis games. Easy to install and remove, no extra tools needed.
  • 𝐑𝐞𝐚𝐥𝐢𝐬𝐭𝐢𝐜 𝐆𝐚𝐦𝐢𝐧𝐠 𝐄𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞 : Lightweight ergonomic design simulates real tennis racket feel, enhancing motion control accuracy. Brings immersive swing action to your matches.
  • 𝐃𝐮𝐫𝐚𝐛𝐥𝐞 & 𝐂𝐨𝐦𝐟𝐨𝐫𝐭𝐚𝐛𝐥𝐞 : Made of high‑quality ABS material, sturdy and wear‑resistant. Smooth surface and comfortable grip for long hours of fun without fatigue.
  • 𝐅𝐚𝐦𝐢𝐥𝐲 & 𝐏𝐚𝐫𝐭𝐲 𝐅𝐫𝐢𝐞𝐧𝐝𝐥𝐲 : Lightweight and easy to use for players of all ages. Elevate local multiplayer and party fun with family and friends.
  • 𝐆𝐫𝐞𝐚𝐭 𝐆𝐢𝐟𝐭 𝐂𝐡𝐨𝐢𝐜𝐞 : Stylish and practical accessory for Mario Tennis fans. Perfect gift for kids, friends, and Switch gamers on any occasion.

Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.

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