Complex sentence: On the eve of the 1996 Summer Olympics in Atlanta, Arad had been crowned Israeli champion 16 times and had competed in 49 international competitions, winning 24 medals: seven gold, eight silver, and nine bronze.
Split into simpler sentences: On the eve of the 1996 Summer Olympics in Atlanta, Arad had won the Israeli championship 16 times and had competed in 49 international competitions. She had won 24 medals: seven gold, eight silver, and nine bronze.