The word racquetballs is playable in Words With Friends™, no blanks required. Because it is longer than 7 letters, you would have to play off an existing word or do it in several moves.
Words With Friends™ Letter Score: 30
Highest Scoring Words With Friends™ Play In The Letters
Seven Letter Word Alert: (69 words)
abaters, ablates, ablutes, abreact, abreast, acaters, acquest, actable, actuals, acuates, allstar, allures, arblast, arcuate, aurates, austral, ballast, ballets, becrust, becurls, blaster, bluster, bullate, bullets, bursate, bustler, butlers, cabaret, cablers, callers, calquer, calques, cartels, cauters, cellars, clarets, clausal, cluster, crustal, cueball, curable, curates, cureall, estrual, lacquer, lactase, lacteal, lateral, laurels, racquet, reblast, recalls, recusal, rubella, salable, saluter, scarlet, scleral, secular, stabler, stellar, subarea, subcell, subrace, subtler, sulcate, tableau, tabular, tarball