The 2015–16 Eurocup Basketball season was the 14th season of Euroleague Basketball's secondary level professional club basketball tournament, and the eighth season since it was renamed from the ULEB Cup to the Eurocup.
The 2016 Eurocup Finals were played between Galatasaray Odeabank and SIG Strasbourg, and won by Galatasaray, which was their first title in a European-wide competition. As the winners of the 2015–16 Eurocup Basketball competition, Galatasaray qualified for the European top-tier level 2016–17 EuroLeague.
The draw was held on 9 July 2015, 12:00 CEST, at the Mediapro Auditorium in Barcelona.[3] The 36 teams were drawn into six groups of six, with the restriction that teams from the same country could not be drawn against each other. For this purpose, Adriatic League worked as only one country. For the draw, the teams were seeded into six pots, in accordance with the Club Ranking, based on their performance in European competitions during a three-year period and the lowest possible position that any club from that league can occupy in the draw is calculated by adding the results of the worst performing team from each league.[3]
Location of teams of the 2015–16 Eurocup regular season. Conference 1: Red: Group A; Green: Group B; Blue: Group C;
Conference 2: Yellow: Group D; Pink: Group E; Orange: Group F;
In each group, teams played against each other home-and-away in a round-robin format. The four first qualified teams advanced to the Last 32, while the fifth and the sixth-placed teams was eliminated. The rounds were 13–14 October, 20–21 October, 27–28 October, 3–4 November, 10–11 November, 17–18 November, 24–25 November, 1–2 December, 8–9 December and 15–16 December 2015.
Location of teams of the 2015–16 Eurocup Last 32. Brown: Group G; Red: Group H; Orange: Group I; Yellow: Group J; Green: Group K; Blue: Group L; Purple: Group M; Pink: Group N.
In each group, teams played against each other home-and-away in a round-robin format. The two first qualified teams advanced to the knockout stage, while the two last qualified teams were eliminated. The rounds were 5–6 January, 12–13 January, 19–20 January, 26–27 January, 2–3 February and 9–10 February 2016.
In the knockout stage, teams played against each other over two legs on a home-and-away basis, with the overall cumulative score determining the winner of a round. Thus, the score of one single game can be tied.
The team that finished in the higher Last 32 place will be played the second game of the series at home.
If both teams placed the same in the Last 32, the team with more Last 32 victories will be played the second game at home.
In case of a tie in both place and victories, the team with the higher cumulative Last 32 point difference will be played the second game at home.