How many different riders are there that won riding Omr Tsunami?
CREATE TABLE table_27833186_1 (rider_names VARCHAR, horse_name VARCHAR)
SELECT COUNT(rider_names) FROM table_27833186_1 WHERE horse_name = "OMR Tsunami"
### Context: CREATE TABLE table_27833186_1 (rider_names VARCHAR, horse_name VARCHAR) ### Question: How many different riders are there that won riding Omr Tsunami? ### Answer: SELECT COUNT(rider_names) FROM table_27833186_1 WHERE horse_name = "OMR Tsunami"