user: Question: What is the highest placing for  marie mcneil / robert mccall, with less than 168.58?
Columns: ['Rank', 'Name', 'Nation', 'Points', 'Placings']
Types: ['real', 'text', 'text', 'real', 'real']
Sample row: [1.0, 'Krisztina Regőczy / András Sallay', 'Hungary', 205.58, 13.0]
SQL:

assistant: SELECT MAX("Placings") FROM "Table" WHERE "Name" = 'marie mcneil / robert mccall' AND "Points" < 168.58;