Conversation so far:
When was the rebel season?
In 1990, the unofficial Welsh championship was replaced by a league structure involving promotion and relegation.
Why was the Welsh championship replaced?
Cardiff competed in top flight but could only manage a fourth-place finish in 1990-91, and exited the Cup at the quarter-final stage.

Question: What was their record during the rebel season?
Self-contained rewrite: What was Cardiff's record during the rebel season of 1990-1991?