 Complete the following phrase:  The 2018 Yas Marina FIA Formula 2 round was a pair of motor races held on 24 and 25 November 2018 at the Yas Marina Circuit in Abu Dhabi, United Arab Emirates as part of the FIA Formula 2 Championship. It was the twelfth and final round of the 2018 FIA Formula 2 Championship and was run in support of the 