In the 2009–10 season, Plet was one of the revelations in the Dutch second division. Partly because of the many goals he made for the club, Telstar won the period title for the first time in years. The then 23-year-old striker played 73 league matches for Telstar, scoring 39 goals.
Heracles Almelo
On 27 May 2010, Glynor Plet signed a contract for three years with an option for another year with Heracles Almelo to succeed Bas Dost, who had left to SC Heerenveen. Glynor Plet scored two goals for Heracles on his Eredivsie debut against Willem II in a 3–0 home victory on 7 August 2010. He scored a total of 7 goals in 22 matches in his first season for the club. He aroused interest of FC Twente by scoring 10 goals in 19 matches in the 2011–12 season.
FC Twente
As a result, Plet signed a 3.5 years contract with FC Twente in the transfer window of January 2012. He was supposed to succeed Marc Janko as the competitor of Luuk de Jong. He made his debut for the club against his last club Heracles Almelo. However, he could never meet the expectations and was told he could leave the club in the summer of 2012.
On 31 August 2012, Plet was sent on loan to Belgian Pro League side Racing Genk Although he did not make it often to the first eleven, he yet scored 10 goals in 27 matches during the 2012–13 season. He won the Belgian Cup with the club by beating Cercle Brugge in the final. In his last match for the club, against SC Lokeren, he made his one hundred goal in his career. However, Genk did not decide to sign Plet permanently.
Plet signed a contract in Hapoel Be'er Sheva for two years on 20 September 2013. Even though many critics didn't give him a shot, he scored 9 league goals for Hapoel Be'er Sheva, established himself as one of the best strikers in the Israeli Winner League. Plet's debut goal in the Winner League was against Bnei Yehuda, in his debut game on Be'er Sheva's late win 2–1.
Zulte Waregem
On 9 July 2014, Plet returned to Belgium by signing a deal with Zulte Waregem He made his debut for the club in the 2–0 won match against KV Kortrijk on 27 July 2014. In half a season he only scored twice in 18 matches for the club and was told that he could leave the club in the following transfer window.
On 7 September 2015, Plet returned to Israel and signed a two-year contract with Maccabi Haifa. On 12 September, he made his debut against Bnei Sakhnin, coming on as a substitute in the 69th minute, he was sent off by a red card in injury time.
