League file // Finland
U20 SM
U20 SM-sarja
2NHL proof files
—conversion withheld
2015–26denominator queue
NHL success index
Proof now. Denominators next.
These verified player files prove the route exists; they do not represent a complete cohort.
01
Sebastian Aho
756 NHL GP →02Kärpät U20 → Liiga → NHL
Miro Heiskanen
552 NHL GP →HIFK U20 → Liiga → NHL
01League registered
Permanent URL and official source are live.
02Roster denominator
Collect every 2025–26 participant, then extend backward.
03Identity resolution
Join only source-supported NHL outcomes.
04Conversion release
Publish rates after completeness and collision review.