CREATE TABLE table_35603 ("Rider" TEXT, "Manufacturer" TEXT, "Laps" FLOAT, "Time/Retired" TEXT, "Grid" FLOAT)

What's the smallest grid for Time/Retired of +22.687?
SELECT MIN("Grid") FROM table_35603 WHERE "Time/Retired" = '+22.687'
SELECT MIN("Grid") FROM "table_35603" WHERE "Time/Retired" = '+22.687'