Trainers from all over the world will be able to participate in the Explosive Speed! Single Battle (爆速！シングルバトル！！) tournament in June of 2014. On May 16th, 2014, The Pokémon Company released a press release to complement the information posted on the Japanese Pokémon Global Link website. Below are the details.

Information
Region: International Registration Period: May 29th, 2014 at 14:00 until June 6th, 2014 at 8:59 Tournament Period: 9:00 am, June 6th, 2014 until 8:59 am, June 9th, 2014 Battle Type: Single Battle Pokémon Restrictions: Pokémon caught or hatched from eggs in Kalos Banned Pokémon: Players could not cannot use Pokémon that were brought to Pokémon X or Pokémon Y using the Nintendo 3DS downloadable software Poké Transporter, nor can they use Mewtwo, Mew, Lugia, Ho-Oh, Celebi, Kyogre, Groudon, Rayquaza, Jirachi, Deoxys, Dialga, Palkia, Giratina, Phione, Manaphy, Darkrai, Shaymin, Arceus, Victini, Reshiram, Zekrom, Kyurem, Keldeo, Meloetta, Genesect, Xerneas, Yveltal, or Zygarde. Players could participate in 10 battles per day, with unused battles carrying over to the next day, making for a total of 30 battles. Entry Gift: 1000 PokéMiles Points
Description
The first 50,000 people worldwide to register were eligible to participate. The tournament was split into two divisions, the Junior Category for those born in 1999 or later and the Master Category for those born in 1998 or earlier. A 10-minute time limit for each match will automatically be enforced in-game, beginning at the start of each battle. If the outcome has not been determined when the time limit expires, the game will automatically apply tiebreakers to determine a winner. At the beginning of each battle, players have 30 seconds to select Pokémon to battle with. At the beginning of each turn, players have 15 seconds to select a move or change Pokémon in battle. If a player has not made his or her selections at the end of this period, the game will automatically make selections for the player. Junior Division players will be limited to playing between the hours of 6 a.m. to 11 p.m. (local time).

2014 Tournament Schedule

Also announced were the upcoming tournaments in Japan. As this is only a tentative schedule, full details were not available. International participation has yet to be confirmed.

International Challenge JUNE - Starting in late June, this will be one of the last chances for players worldwide to qualify for the Pokémon World Championships.

Eievui Friendly Match (イーブイ フレンドリーマッチ) - In July, this Rotation Battle tournament limits participating Pokémon to Eeveelutions.

All-Star ☆ Battle (オールスター☆バトル) - This tournament is also in July and allows any Pokémon except Diance to participate in Double Battles, however each Battle Box can only contain a maximum of two Pokemon from the list of normally disallowed species. Players can also use Pokémon imported from older games via the Poké Transporter.

Ultra Fast! Double Battle! (超速！ダブルバトル！！) - In August, this Double Battle Tournament will not allow players to see opponents Pokémon beforehand. Players will use 3 Pokemon each instead of the normal 4.

Fairy Friendly (フェアリー フレンドリーマッチ) - In the autumn, a currently undecided tournament format will only allow players to use Fairy-type Pokémon.

Halloween Party (ハロウィンパーティー) - In the autumn (probably late October), tournament participants will be limited to Ghost-type Pokémon. Pumpjin must be included in the Battle Box.

Rating Battle Seasons 5 and 6 Announced

Preliminary details about the next two Rating Battle Seasons were announced on the Japanese Pokémon Global Link website. Full details will be announced later in the year.

Rating Battle Season 5
Season Time Period: Starts July 15th 2014
Rules for Special Battle:
Battle Type: 6-on-6 Single Battles
Restrictions: Items Disabled

Rating Battle Season 6
Season Time Period: Starts Mid September 2014
Rules for Special Battle:
Battle Type: Double Battle
Banned Pokémon: 12 most used Pokémon in regular Double Rating Battles from Seasons 1 to 4 are banned, as are the 12 most used Pokémon in regular Double Rating Battles from Season 5 at a specific point in August.

Sources: http://3ds.pokemon-gl.com/information/73d78ec1-e098-4588-a6ec-afdb8c5b6d73 and http://3ds.pokemon-gl.com/information/7397a69b-2b78-4bfa-a7cc-b5779b1d06d0

Press Release - Seven New Pokémon Online Competitions Announced!

There are even more opportunities for Pokémon video game players to battle others around the world in Pokémon X and Pokémon Y. Seven new Online Competitions were just announced by The Pokémon Company International, in addition to the 2014 International Challenge May, currently in progress.

The worldwide tournament series provides numerous opportunities for new and experienced Pokémon competitors to battle others online. Some events even reward top players with Championship Points, which count toward invitations to the 2014 Pokémon World Championships taking place August 16–17 in Washington, DC.

Here’s the upcoming Pokémon video game Online Competitions schedule:
May 16–18: 2014 International Challenge May. Registration is closed.
June 6–8: Think Fast Competition: Single Battle.
Late June: 2014 International Challenge June.
July: Eevee Friendly Match [Name TBD].
July: All Star Battle [Name TBD].
August: Think Fast Competition: Double Battle.
Autumn: Fairy-type Cup [Name TBD].
Autumn: Halloween Party [Name TBD].

· Players have the opportunity to earn Championship Points toward a possible invitation to the 2014 Pokémon World Championships by participating in the 2014 International Challenge May or June tournaments.

· The Think Fast Competition: Single Battle will test players’ quick thinking. Each round is limited to one 10-minute Single Battle, with a 30-second preview of the opponent’s Pokémon and 15 seconds to choose a move each turn.

· Only Eevee and its many evolved forms can participate in the Eevee Friendly Match [Name TBD]. The Rotation Battle format adds a fun component to this competition.

· The July All Star Battle [Name TBD] will use the Double Battle format. Up to two Legendary and Mythical Pokémon can be included on a team, a rare occurrence in Pokémon Online Competitions!

· In August, the Think Fast Competition: Double Battle will require players to go into battle without seeing a preview of their opponent’s Pokémon team, and each player can have only one Pokémon in reserve, for a total of three Pokémon per side in each battle.

· Look forward to the Fairy-type Cup [Name TBD] this fall, a competition where entry will be limited to Fairy-type Pokémon. The battle format is to be determined.

· In a special competition for the Halloween season, the Halloween Party [Name TBD] will have a special Single Battle competition for Ghost-type Pokémon only. Also, every contestant’s Battle Box must include Gourgeist!

Registration deadlines for the Think Fast Competition: Single Battle and the 2014 International Challenge June are coming up quickly. Players can visit Pokemon.com and the Pokémon Global Link (Pokemon.com/PGL) for more information on each Online Competition that will be posted soon, including rules and regulations. All Online Competition battles are played in the Pokémon X or Pokémon Y game for the Nintendo 3DS family of systems.

Special Message from GAME FREAK’s Battle Director Shigeki Morimoto

And now, GAME FREAK’s Battle Director Shigeki Morimoto has a special message for Pokémon Trainers:

Pokémon players around the world! I'm very, very grateful to see so many people participating in Pokémon battle events again this year, including the Pokémon World Championships and online competitions. How have you done in the rankings? For everyone located in regions that are holding World Championship preliminary events, keep giving it your all!

It appears that Pokémon Omega Ruby and Pokémon Alpha Sapphire have been announced! I think these games are going to cause another huge change in the world of battling. They will be released in November of this year, so until then you'll still be battling using Pokémon X and Pokémon Y. So, we have prepared a whole lot of fun competitions and events to showcase all that Pokémon X and Pokémon Y have to offer for battle!

Of course, furious Pokémon battles will continue with the release of Pokémon Omega Ruby and Pokémon Alpha Sapphire. Draw forth Pokémon's full potential in a variety of different battle formats!

Additionally, I am personally looking forward to seeing what kind of Pokémon will be used in Inverse Battles in Season 4 of the rating battles, which has just begun. It looks like Garchomp and Kangaskhan might still have an edge, but this time Garchomp has a 4x weakness to Electric-type moves!

I hope you'll continue to take part in random matchups and competitions. And let's get pumped up waiting for Pokémon Omega Ruby and Pokémon Alpha Sapphire! Until then, even I, Morimoto, will secretly take part in battles, too!

From the Battle Director of the Pokémon series, Shigeki Morimoto, GAME FREAK Inc.

Thanks, Mr. Morimoto. And good luck to Pokémon Trainers everywhere!

Source: http://www.pokemon.com/us/pokemon-news/more-online-competitions-are-on-the-way/