Table: draft_picks_21
Columns: rd
pick
player
team_league
reg_gp
pl_gp

Question: Name the highest pick number for PI GP more than 55
SQL: SELECT MAX("pick") FROM draft_picks_21 WHERE "pl_gp" > 55

Question: Name the least RD number that has PI GP more than 0 and pick # more than 51
SQL: SELECT MIN("rd") FROM draft_picks_21 WHERE "pl_gp" > 0 AND "pick" > 51