[4] At the 1998 World Championships in Sydney, she won the silver medal in the individual event behind Russia's Irina Karavayeva.

She also won the silver medal in the synchro competition with Olena Movchan behind German trampolinists Tina Ludwig and Anna Dogonadze.

[5] At the 1999 World Championships in Sun City, South Africa, Tsyhuleva once again won the silver medal in the individual event behind Irina Karavayeva.

The Ukrainian team of Tsyhuleva, Olena Movchan, and Oxana Verbitskaya won the silver medal behind Russia.

She won the gold medal with Olena Movchan in the synchronized trampoline event.