Complex sentence: As Miss Daegu, Son Tae-young placed second runner-up (or third place) at the Miss Korea pageant in 2000, and was the country's representative at the 2000 Miss International pageant, where she won 1st runner-up and Miss Photogenic.
Split into simpler sentences: As Miss Daegu, Son Tae-young placed second runner-up (or third place) at the Miss Korea pageant in 2000. She was the country's representative at the 2000 Miss International pageant, where she won 1st runner-up and Miss Photogenic.