It was a tight contest all the way through with no team ever owning a comfortable margin but Ukraine responded from a five-point deficit at half-time to lead by double-digits for most of the final term.
Viacheslav Petrov proved the difference, scoring 25 points on 11-17 shooting overall as his side shot 42% to counter the Emerging Boomers who had ten players hit the scoreboard.
Australia will rue their performance down the stretch as they gave themselves every opportunity to win, owning a +5 edge on the glass while also collecting two more assists and one more steal.
Dejan Vasiljevic was not shy from long-range and finished with 5-15 three-point shooting to-top score with 28 points and three steals while Xavier Cooks exerted his influence in the paint with 13 points, 11 boards, five assists, two steals and two blocks.
Rhys Vague also showed strong signs with eight points and a couple of three's while Kyle Adnam and Gorjok Gak's attack on the basket will give the Emerging Boomers confidence heading into their next game.
The International University Sports Federation has made all games available to live-stream for free via this link with games becoming available once they begin.
The Emerging Boomers are back on court tomorrow against Lithuania while the Emerging Opals will begin their campaign, also against Lithuania.
The 2017 Emerging Boomers and Opals Schedule (all times AEST):
August 21: Emerging Boomers vs. Lithuania at 5.00pm
Emerging Opals vs. Lithuania at 10pm
August 22: Emerging Opals vs. Argentina at 7.30pm
August 23: Emerging Opals vs. Russia at 2.30pm
Emerging Boomers vs. Israel at 5.00pm
August 24: Emerging Boomers vs. Russia at 2.30pm
August 25: Emerging Boomers vs. Mozambique at 12.00pm
Emerging Opals Quarter-Finals
August 26: Emerging Opals Semi-Finals
August 27: Emerging Boomers Quarter-Finals
August 28: Emerging Boomers Semi-Finals
Emerging Opals bronze and gold medal games
August 29: Emerging Boomers bronze and gold medal game