2011-12: Patrick Sanvido skated for the Guelph Junior Storm midget minor AAA team in Ontario. He scored 6 goals with 27 assists and 68 penalty minutes in 56 games. Sanvido was selected by Windsor in the second round (41st overall) in the 2012 OHL Priority Draft.
2012-13: Sanvido played in 60 of 69 games for the Windsor Spitfires in his first OHL season. He had 6 assists and was -16 with 40 penalty minutes. The Spitfires missed the playoffs, finishing last in the West Division.
2013-14: Sanvido returned to Windsor for his second OHL season. He scored 1 goal with 7 assists and was -21 with 82 penalty minutes in 64 regular season games. Windsor finished second in the West Division and lost to London in a first round playoff series. Sanvido was -2 with no points and 7 penalty minutes in four playoff games. He was ranked 140th amongst North American skaters in the Central Scouting final rankings and was selected by Dallas in the seventh round (195th overall) in the 2014 NHL Draft.
2014-15: Sanvido was a captain and team leader for a Windsor Spitfires team that was overmatched on many nights in his third OHL season. In 59 games for the Spitfires he scored 3 goals with 8 assists and was -19 with 62 penalty minutes. Windsor finished last in the West Division, missing the OHL playoffs.
2015-16: Sanvido was a team captain for the Windsor Spitfires in his fourth OHL season, returning from an early season knee injury to skate in 49 regular season games. He scored 1 goal with 9 assists and was +21 with 30 penalty minutes. The Spitfires finished second in the West Division, falling to Kitchener in a first-round series. Sanvido was -5 with 1 assist in five playoff games.
Sanvido is a large, old school defenseman almost solely focused on defending in his own zone with little offense to his game. He is an average skater, maybe above the mark when size is considered and has limited puck skills. His defensive play is raw and he is behind the play at times. His hockey sense and skill set may be too limited for him to become an NHL regular unless he has a niche. He is still learning how to apply his body, physicality, and strength. Sanvido is a willing combatant when it comes to dropping the gloves. A heart-on-his-sleeve defenseman similar to former Spitfires captain Harry Young, he has limited upside in terms of his pro potential but Sanvido's willingness to do whatever is necessary to shutdown the opposition and help his team win cannot be discounted.
Sanvido was a team captain for Windsor in 2015-16. The Spitfires were one of the big turnaround stories in the OHL, finishing second to Sarnia in the West Division. Sanvido missed nearly six weeks with a knee injury suffered in October but was a key presence for the Spitfires once he returned. Not signed to an entry-level contract by Dallas, Sanvido will re-enter the 2016 NHL Draft. His professional potential appears limited to that of a lower pairing defender but his character could earn him an NHL look.