2009-10: Tyler Brown’ played in 66 games in his third OHL Season with Plymouth. Playing a limited role behind the likes of second overall pick, Tyler Seguin (BOS), Brown scored 14 goals with 35 assists and was +12 with 28 PMs.
2010-11: Brown was the third-leading scorer for Plymouth as a 20-year-old as the Whalers finished third in the OHL West Division. In 67 games he scored 25 goals with 32 assists and was +6 with 44 PMs. Brown skated in all 11 playoff games as the Whalers advanced to the second round and he led the team with 11 assists while scoring 3 goals with 8 PMs. Brown scored 2 of his 3 goals playoff goals while on the penalty kill and was -1 for the two series. Brown signed a free-agent, entry-level contract with Philadelphia in March 2011.
2011-12: Brown skated in 71 games for Flyers' AHL affiliate Adirondack in his first pro season. Playiing mostly a lower line role, he chipped in some secondary scoring (8 goals, 9 assists) and had 28 penalty minutes; finishing plus-two on a Phantoms team that struggled to score and was fifth in the Norheast Division, missing the playoffs. Brown was among the players called up by the Flyers for the NHL playoffs but did not appear in any games.