Table: skating_stats_2
Columns: rank
ws_points
name
country
09_10_i_o_best
09_10_gp_jgp_best
09_10_gp_jgp_2nd
09_10_oi_best
09_10_oi_2nd
08_09_i_o_best
08_09_gp_jgp_best
08_09_gp_jgp_2nd
08_09_oi_best
08_09_oi_2nd

Question: What was the maximum 09-10 i/o best?
SQL: SELECT MAX("09_10_i_o_best") FROM skating_stats_2