Table: borg_stats
Columns: outcome
year
championship
surface
opponent_in_the_final
score_in_the_final

Question: Name the number of year for 6–3, 6–2 hard surface
SQL: SELECT COUNT("year") FROM borg_stats WHERE "score_in_the_final" = '6–3, 6–2' AND "surface" = 'Hard'

Question: Name the surface for philadelphia
SQL: SELECT "surface" FROM borg_stats WHERE "championship" = 'Philadelphia'

Question: Name the championship for clay and corrado barazzutti
SQL: SELECT "championship" FROM borg_stats WHERE "surface" = 'Clay' AND "opponent_in_the_final" = 'Corrado Barazzutti'

Question: Name the year for clay for boston and guillermo vilas
SQL: SELECT "year" FROM borg_stats WHERE "surface" = 'Clay' AND "championship" = 'Boston' AND "opponent_in_the_final" = 'Guillermo Vilas'

Question: Name the total number of opponent in the final for 6–2, 6–1, 6–3
SQL: SELECT COUNT("opponent_in_the_final") FROM borg_stats WHERE "score_in_the_final" = '6–2, 6–1, 6–3'