Table: mma_fight_results_30
Columns: res
record
opponent
method
event
round

Question: Which Round has an Event of nle - capital city carnage?
SQL: SELECT "round" FROM mma_fight_results_30 WHERE "event" = 'nle - capital city carnage'

Question: Which Round has an Opponent of ryan bixler?
SQL: SELECT "round" FROM mma_fight_results_30 WHERE "opponent" = 'ryan bixler'

Question: Which Event has a Record of 19-9?
SQL: SELECT "event" FROM mma_fight_results_30 WHERE "record" = '19-9'