Ortona was new to Jaylen, while many of the Italian riders had trained there before. He used Friday to learn the circuit and work with the team on the setup.
Rain during the second qualifying session left Jaylen 11th on the grid. The sprint race was dry and he finished ninth.
Sunday races
A mistake at the first corner of Race 1 dropped Jaylen to 13th. He recovered to 11th before a highside, then remounted and completed the race in the same position.
Rain arrived before Race 2 and all riders changed to wet tyres. Jaylen moved from 11th to sixth at the first corner and continued to fourth. The race was stopped after eight laps as the conditions worsened, confirming his fourth-place finish.
After two race weekends Jaylen was fifth in the championship with 44 points. The next round was scheduled for Modena.