original: During his 22 - year career, Young established numerous professional pitching records in the majors, some of which have stood for a century.
simplifications: During his career, Young made many records, some of which were not broken for a century. During his 22 -year career, Young held many professional pitching records in the majors. Some of these have stood for a century. During his career, Young set a number of professional pitching records. Some of those records have lasted for 100 years. Throughout Young's 22-year  pro career, he established many pitching records some now almost a century old. Over his 22 year career, Young earned many top pitching records in the majors. Some of the records had stood for one hundred years. Young's career was only for 22 years but he had many professional pitching records in the majors with some still standing for 100 years. Over his 22 year career, Young made many pitching records in the majors, some have stood for a 100 years. Young has established many professional pitching records in the majors during his career of 22 years. During his 22 year career, Young set a lot of professional pitching records in majors. Some of these records were unbeaten for 100 years. In his 22-year career, Young set up a number of professional pitching records in majors, some of which have been around for a century.