If there were, I'm guessing Eric Heiden probably would have done it. Stolz joined Heiden (who did it twice) and his sister Beth in winning both the junior and senior world championships in the same year.
Imagine if Rafa Nadal lost a ton of majors in a row to start off his career then finally won a major then winning a world championship. That is sort of akin to Michael Smith. A very good youth player (now the only player to win both the youth and men's world championships), and now looking like he'll be #1 for a while.
For context, Michael Smith has lost eight PDC major finals in a row including the World Darts Championship final in 2019 and 2022. He finally got over the hump.
carnifex2005 t1_jcv7ccx wrote
Reply to comment by hosty in Owners of Mumbai Indians, Chennai Super Kings, Delhi Capitals to own teams in America's Major League Cricket by NoQuestion4045
The Kolkata Knight Riders is up there too.