MTR 10.4 Pairing Algorithm

Unless otherwise announced, tournaments are assumed to follow the Swiss pairing algorithm. Some tournaments may proceed to single-elimination playoff rounds between the top 2, 4, or 8 (or other number) players after the Swiss rounds are over. The Swiss pairing algorithm is modified in Booster Draft tournaments as explained in section 7.6.

For constructed tournaments that have a single-elimination playoff (or sealed deck tournaments that do not use a booster draft for the playoff), the recommended pairing method is to pair the playoff players by the final Swiss standings.

For an 8-player playoff, the 1st place player plays the 8th place player, the 2nd place player plays the 7th place player, the 3rd place player plays the 6th place player, and the 4th place player plays the 5th place player. The winners of the 1st/8th place and 4th/5th place matches play each other in the next round of the playoff. The winners of the 2nd/7th place and 3rd/6th place matches play each other in the next round of the playoff. The remaining players play in the last round of the playoff.

T8Const
For a 4-player playoff, the 1st place player plays the 4th place player, and the 2nd place player plays the 3rd place player. The remaining players play in the last round of the playoff.

T4Const
For Limited tournaments that have a single-elimination booster draft playoffs, it is recommend that only an 8-player playoff is run using the following method described below.

Use a random method to seat players around the draft table and conduct the draft.

DraftSeating

After the draft has concluded, the player in seat 1 plays the player in seat 5, the player in seat 2 plays the player in seat 6, the player in seat 3 plays the player in seat 7, and the player in seat 4 plays the player in seat 8. The winners of the seat 1/5 and the 3/7 matches play each other in the next round of the playoff. The winners of the seat 2/6 and the seat 4/8 matches play each other in the next round of the playoff. The remaining players play in the last round of the playoff.

T8Draft
For Premier Tournaments, the playoff options above are required, not optional.

Premier Events include the following tournaments: Magic: The Gathering World Championship, World Magic Cup, Nationals, Nationals Last Chance Qualifiers, Pro Tour, Regional Pro Tour Qualifiers, Regional Last Chance Qualifiers, Preliminary Pro Tour Qualifiers, Pro Tour Qualifiers, Grand Prix, Grand Prix Trials, WPN Premium Tournaments, and WPN Premium Qualifiers.