Hi clumpa,
You can use INDEX(Sheet1ColB,MATCH(Sheet2ColA,Sheet1ColA,0))
..here
Sheet1ColB = Sheet 2 Col B that contains scores,
Sheet2ColA= Refers to the cell in Sheet B for which value is to be retrived,
Sheet1ColA= is the column where the value will be looked in i.e. Col B of sheet1.