Superstock and Superbike World Championship
In 2012 Mercado raced in the Superbike World Championship for eight rounds in the first half of the season, before moving back to the FIM Superstock 1000 Cup. He was twenty-sixth and fifteenth respectively in the standings.[5] For the following two seasons, he continued competing in the Superstock category, finishing fourth in 2013 with Kawasaki machinery, and winning the 2014 title on a Ducati 1199.[5]
For 2015, Mercado returned to the Superbike World Championship full time,[6] finishing eighth in the final standings.[5] In 2016 he once again returned to the Superstock category, where he finished as runner-up.[5] In 2017, he would ride for IodaRacing Project on an Aprilia RSV4 in the Superbike championship, finishing 13th in the championship, with 115 points.
Mercado switched to Kawasaki for the 2018 Superbike World Championship, riding the Kawasaki Ninja ZX-10R, but only finished 15th at the end of the season, with 70 points. He would stay with Kawasaki for 2019, but the results would remain the same, 80 points and 16th in the standings at the end of the year.
For the 2020 Superbike World Championship, Mercado switched to a Ducati, riding for Motocorsa Racing team, on a Ducati Panigale V4. After missing the opening rounds in Australia, Mercado was also forced to miss time in the middle of the season due to injuries, missing 10 races altogether, and therefore only finished 16th at the end of the year, with 24 points. In 2021, Mercado would switch teams again, this time riding a Honda CBR1000RR, for MIE Racing Honda Team. Once again, injuries plagued Mercado's season, as well as a covid-19 absence from the Czech weekend, leading to a career-low 26 points from him in the season, and 21st in the standings. Nevertheless, Honda announced that he would stay for 2022, partnered by Hafizh Syahrin.[7]
