CREATE TABLE table_2581397_4 (race VARCHAR(255), weight__kg_ VARCHAR(255), winner_2nd VARCHAR(255))
In what race was the weight in kg 55 and the winner/2nd 1st - Jim and Tonic?
    
SQL: SELECT race FROM table_2581397_4 WHERE weight__kg_ = "55" AND winner_2nd = "1st - Jim And Tonic"