Table schema:
CREATE TABLE table_2581397_4 (race VARCHAR, weight__kg_ VARCHAR, winner_2nd VARCHAR)

Question: 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"