Table: joao_sousa_match
Columns: edition
round
date
against
surface
opponent
w_l
result

Question: What was the score against Loic Didavi?
SQL: SELECT "result" FROM joao_sousa_match WHERE "opponent" = 'Loic Didavi'

Question: Who was played against when there was a loss and in the gi po round?
SQL: SELECT "against" FROM joao_sousa_match WHERE "w_l" = 'Loss' AND "round" = 'GI PO'

Question: What were the w/l when the final score was 2–6, 5–7, 7–6 (11–9) , 1–6?
SQL: SELECT "w_l" FROM joao_sousa_match WHERE "result" = '2–6, 5–7, 7–6 (11–9) , 1–6'