The Smogon Grand Slam was created during the fifth generation (BW). This means that DPP lower tiers were never featured in a Grand Slam. This will be the closest recreation possible to a hypothetical DPP Grand Slam that can be done at this time.
This will be a best-of-five single elimination tournament with Ubers, UU, NU, PU, and LC (All in DPP).
Why include PU, you may ask? The modern (and initial) Smogon Grand Slam have (had) Ubers, the three tiers below OU, and LC. In the case of DPP, these three tiers are UU, NU, and PU, rather than UU, RU, and NU. This is because there is no DPP RU tier (RU was created during BW).
This tournament counts as Type B for Smogon Championship. The point distributions for a Type B tournament are as follows:
The tier lists being used are those on Pokémon Showdown's teambuilder and here.
Ubers will be challenged in [Gen 4] Ubers, UU will be challenged in [Gen 4] UU, NU and PU will be challenged in [Gen 4] NU, and LC will be challenged in [Gen 4] LC. Replays are required or else the games will not be counted (no exceptions).
Quarterfinals is finished.
Finchinator v. Ranshiin
(Melle2402 v. TSR) v. MiyoKa
Mikaav v. Kushalos
[(Leo v. DurzaOffTopic) v. hyperbeem] v. Staraptor
LordST v. Arifeen
Arii Stella v. Rodriblutar