Mika Koivuniemi earned the nickname “Major Mika” by winning the 2000 USBC Masters and 2001 U.S. Open, later adding the 2011 PBA Tournament of Champions as the 2-time PBA Player of the Year won 14 PBA Tour titles. While rarely bowling on the PBA50 Tour as he spent years coaching in the Middle East, Koivuniemi has just one title, but it’s — what else? — a major: the 2018 PBA Senior U.S. Open. On Tuesday, Koivuniemi took the lead in the third major of the 2024 PBA50...