I'll be hosting the Mythic Championship V! With $750,000 on the line, 68 top MTG players will battle in traditional Best-of-Three Standard Constructed.
From the WotC website:
Day 1 – Modified Swiss
64 players battle it out in up to seven rounds on Magic: The Gathering Arena and 24 players will advance to Day 2. Players who earn five wins will automatically advance to Day 2. Players who lose four matches are eliminated from the tournament. Players who end Round 7 with four wins will move on to Day 2 based on their Day 1 tiebreakers until 24 players have advanced.
Day 2 – Modified Swiss
The Top 24 from Day 1 join the Magic Pro League divisional champions from the Core Split in a seven-round Swiss event. All players who reach five match wins move on to Day 3. Additional players will round out the Top 8 for Day 3 based on their tiebreakers in Day 2.
Day 3 – Top 8 Double-Elimination
8 players compete in a true double-elimination tournament. In the grand finals, the winners in the Upper Bracket and Lower Bracket will face off. The player in the Lower Bracket must win two matches to win the tournament!