2018 Pan Pacific Championships (Tokyo, Japan)
In Tokyo, Spajari won gold as a part of Brazil’s 4×100 free relay, splitting 46.94 as the anchor leg.
2019 Pan American Games (Lima, Peru)
Spajari was part of Brazil’s gold medal men’s 4×100 free relay team alongside Breno Martins Correia, Marcelo Chierighini and Bruno Giuseppe Fratus. The team set a Pan American Games record (3:12.61).
Spajari finished fifth in the 50 free (22.27), 0.66 off the gold medal and .28 seconds off the podium.