List all tournaments or create a new tournament.

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HTTP 200 OK
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Content-Type: application/json
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                "username": "eaglejoy",
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            "description": "<hr>\n<h2>What makes our matches unique?</h2>\n\n<ol>\n<li>The matches are <strong>true</strong> fast correspondence, —  more than 2 moves per clock day.</li>\n<li>We have a Rank Difference Compensation policy which makes matches close, and lower-kyu players have more opportunities to get a good place.</li>\n<li>We use 'type rank' (such as 9x9 cor. rank) rather than the overall rank.</li>\n</ol>\n\n<hr>\n<h2>Additional rules</h2>\n\n<ol>\n    <li>Pause or Vacation mode is not allowed</li>\n    <li>The participants whose <strong>ratings are far higher/lower than the average ratkings of opponents will get adjusted points</strong>; for instance, 2 kyus higher or lower will be plus or minus 0.5 result points.</li>\n</ol>\n\n<h2>Attention</h2>\n\n<h3>Speed and Time-out</h3>\n\nKeep in mind that the avg speed of one game is about <u>3 moves per calendar day (or 12 hrs of your clock time)</u> per player. Since the Round Robin will activate several games simultaneously, for a match with five players, the avg speed times 4. To respect your opponents and the match organizer, <strong>please try to avoid time out as far as possible.</strong>. \n\nLoss by time out will be labeled as \"disqualified\" on the table by OGS' program automatically.\n\nLoss by time out will affect your reputation in this Match system.\n\n<h2>Tips</h2>\n\n<ul>\n    <li>Use Plan Conditional Moves to speed up</li>\n    <li>To pay more attention to the progress of this tournament (use filter &quot;Game&quot; in Active Games list on the Home page or Profile page, or press &quot;Ctrl+F&quot; to find the key strings &quot;<strong>Mid-</strong>&quot; )</li>\n    <li>Meanwhile, for better quality, no need to play too many moves a day — after all, Mid-Speed Match is not a live game.</li>\n</ul>\n\n<hr />\n\n<h3>Ref</h3>\n\n<ul>\n    <li><a href=\"https://online-go.com/tournament/101569\">Previous tournament</a></li>\n    <li><a href=\"https://online-go.com/group/12936\">About the <strong>Mid-speed</strong> Group</a></li>\n</ul>",
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                "id": 12936,
                "name": "Mid-speed",
                "summary": "Middle speed matches, not so hurry, not so slow.",
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                "is_public": true,
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        {
            "id": 100521,
            "name": "2023.MAR #3 19X19 tournament 12K~10K",
            "director": {
                "id": 1161013,
                "username": "朵兒普拉斯-doorplus-",
                "country": "_United_Nations",
                "icon": "https://user-uploads.online-go.com/7c935550f93ff5eb3f3e93239454342f-64.png",
                "ratings": {
                    "version": 5,
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            "description": "Attention: Time Setting for the Game\n\nWhen playing the game, please pay close attention to the time setting. The game requires an average of 5-6 moves per day. If you need to take a break, make sure to return promptly and make more than 6 moves per day to keep up with the time. Please do not keep your opponent waiting for tooooooooooooooo loooooooooooooooooooong.\n\n🍭Tips:                                                    \n1️⃣Utilize the conditional move feature to speed up the game.                                                        \n2️⃣Disqualification will occur if a player loses by timeout.                                                    \n3️⃣If disqualified by the tournament director, all outstanding games will be forfeited, which will affect the player’s ranking.                                            \n\n🍭The following rules must be obeyed to guarantee a respectful game:                                               \n1️⃣No pauses are allowed.                                     \n2️⃣No vacation mode is permitted. (If a player is on vacation, they and their opponent can still make a move, but time will be suspended. Soooooooooooo, vacation mode is absolutely NOT allowed.)                                \n3️⃣Any player who is on vacation or has paused the game will be disqualified without further notice or reminder.  \n4️⃣If you find that a player pauses the game or enters vacation mode, please send a message to the tournament director.                                                   \n  \nLet us strive to be respectful players.                        \nWe wish everyone a pleasant game and hope to gain something from our opponents. :)",
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                "name": "Way to GO",
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