The 2018 FIM Moto3 World Championship was a part of the 70th F.I.M. Road Racing World Championship season. Joan Mir was the reigning series champion, but he did not defend his title as he joined Moto2.
After winning at Sepang, Spanish rider Jorge Martín was crowned the 2018 Moto3 World Champion, having created an unassailable lead of 26 points over current runners-up Marco Bezzecchi.
The final race in Valencia saw wildcard rider Can Öncü become the youngest Grand Prix motorcycle racing winner at 15 years, 115 days.[1]