Are there so many unbeatable sports records. Almost any of the season or lifetime records in cricket are out-of-sight due to the huge cut back in the first-class program. (from 32 county games in the 1960's to 16 now)
So, no one will ever break...
197 lifetime centuries, Jack Hobbs
61,237 lifetime runs, Jack Hobbes
18 centuries, one sean, Denis Compton
3,816 runs, one season, Denis Compton
4,187 career wicket, Wilffred Rhodes