Ettoré has played tennis since youth with his identical twin brother Angelo. He is a USPTA certified teaching professional. As a player, he has competed in USTA league and tournament play, achieving a rank of #1 in New England in Men's Open Doubles. In USTA league play, he has competed at the 5.0 and open levels and 9.0 mixed doubles, advancing once to the Open Nationals.
He and his brother set an official Guinness World Record for the longest tennis rally (14 hours and 31 minutes while accumulating 25,944 combined strokes).
He incorporates modern tennis concepts into his teaching methods. Ettoré has received USPTA's 2007 USPTA Regional Open Player of the Year and 2008 USPTA Tennis Industry Excellence Award & 2009 National TIE Award.