Question: What is the rank when RR2 has 4 points?
SQL: SELECT "Ranking" FROM "1-21515673-2" WHERE "RR2 Pts." = 4.0;

Question: How many points does Swedish America's Cup Challenge have for rr1?
SQL: SELECT COUNT("RR1 Pts.") FROM "1-21515673-2" WHERE "Team name" = 'Swedish America''s Cup Challenge';