user: Question: When the Tier is listed as Tier III, who is the Winner?
Columns: ['Week of', 'Tier', 'Winner', 'Runner-up', 'Semi finalists']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['12 June', 'Tier III', 'Zina Garrison-Jackson 6–3, 6–3', 'Lori McNeil', 'Elna Reinach Els Callens']
SQL:

assistant: SELECT "Winner" FROM "Table" WHERE "Tier" = 'Tier III';