Jonathan Rea

... was also World Superbike Champion in 2018 and 2019, making a record five championships – and in consecutive years.

The previous record holder was Carl Fogarty, with four championships between 1994 and 1999 (inclusive).

BTW ... I have it on good authority (I had this page translated by Google) that Rea is pronounced, in this case, 'Ray' (being Irish rather than Italian).