Finn Helgesen
Personal records
Table:
Event
Result
Date
Venue
WR

500 m
43.1
31 January 1948
St. Moritz
41.8

1,000 m
1:31.5
27 January 1952
Gjøvik
1:28.4

1,500 m
2:25.4
3 January 1952
Oslo
2:13.8

3,000 m
5:15.4

5,000 m
9:05.1

10,000 m
18:39.4

Examining the table information on 'Finn Helgesen' (see 'Personal records'), produce a single-sentence summary focused on the highlighted cells and return it as JSON: {"answer": "YOUR ANSWER"}.