Complex sentence: He also made history, after setting the Spinners record for the lowest earned run average in a regular season, as his 1.40 ERA bested the 1.50 mark set by Kyle Weiland dating back 2008.
Split into simpler sentences: He also made history, after setting the Spinners record for the lowest earned run average in a regular season. His 1.40 ERA bested the 1.50 mark set by Kyle Weiland dating back 2008.