[5] In December 2014, Seinpaal was signed by Real Rincon who were reigning champions of the Bonaire League for the 2014 season at the time.
In the club's opening match, Seinpaal scored two goals as the Rincon defeated Hard Rock FC of Grenada 3–1 in Santiago de los Caballeros, Dominican Republic.
Seinpaal scored in the tournament final victory over CRKSV Jong Holland to win the title.
[22][23][24] In May 2014, Seinpaal was named to Bonaire's roster for 2014 Caribbean Cup qualification, the first CONCACAF tournament in which they took part after becoming a member.
[25] In December 2015, Seinpaal was named to the provisional squad by Bonaire head coach Ferdinand Bernabela in preparation for 2017 Caribbean Cup qualification.
[27] In September 2018 Seinpaal was named to Bonaire's squad for the inaugural qualifying campaign for the newly established CONCACAF Nations League.
[28] After qualifying for the 2019–20 CONCACAF Nations League C, Seinpaal started in the team's opening match against the British Virgin Islands.