Matti Mattsson was third in the 200m breaststroke Olympic final.
Mattsson's time was 2.07.13.
Time is a new, huge Finnish record.
Australian Izaac Stubblety-Cook won the Olympic final with a time of 2.06.38.
Mattsson began his race contract in Tokyo on Tuesday.
He won his own set and was the third fastest in the first round with a time of 2.08.44.
In Wednesday's semi-finals, Pori scored a new SE time of 2.08.22 and was the fifth fastest in the semi-finals.
Finland's previous record improved by four hundredths of a second.
Its Mattsson had swum in the spring in the European Championships
Mattsson said after Wednesday’s semi-finals that reaching the Olympic finals has been his dream for a long time.
The story will be completed in a moment.