Table: tour_de_filipinas
Columns: year
date
stages
distance
winner

Question: In what year saw a total distance of 1,870.23 km?
SQL: SELECT "year" FROM tour_de_filipinas WHERE "distance" = '1,870.23 km'

Question: Who won in 1965?
SQL: SELECT "winner" FROM tour_de_filipinas WHERE "year" = '1965'

Question: What stage was 1,648 km achieved?
SQL: SELECT "stages" FROM tour_de_filipinas WHERE "distance" = '1,648 km'

Question: What year was stage 8 reached?
SQL: SELECT "year" FROM tour_de_filipinas WHERE "stages" = '8'