Table: player_stats_54
Columns: player
ranking
event
surface
round
score

Question: Which Surface has a Score of 2009 wta tour?
SQL: SELECT "surface" FROM player_stats_54 WHERE "score" = '2009 wta tour'

Question: Which Round has a Ranking of 2008 wta tour?
SQL: SELECT "round" FROM player_stats_54 WHERE "ranking" = '2008 wta tour'

Question: Which Surface has a Round of 4th round, and a Player of maria sharapova?
SQL: SELECT "surface" FROM player_stats_54 WHERE "round" = '4th round' AND "player" = 'maria sharapova'

Question: Which Player has a Score of 6–4, 7–6 (7–5)?
SQL: SELECT "player" FROM player_stats_54 WHERE "score" = '6–4, 7–6 (7–5)'

Question: Which Round has a Player of anna chakvetadze?
SQL: SELECT "round" FROM player_stats_54 WHERE "player" = 'anna chakvetadze'