1958 FIBA European Champions Cup
Season	1958
Teams	23
Finals
Champions	Rīgas ASK (1st title)
Runners-up	Academic
1958–59 →

The 1958 FIBA European Champions Cup was the inaugural season of the European top-tier level professional basketball club competition FIBA European Champions Cup (now called EuroLeague). It was won by Rīgas ASK, after they won both EuroLeague Finals games against Academic. Previously, they had not played the semifinals, as Real Madrid was not allowed to travel to Soviet Riga by the Francoist authorities. The first game was held on February 22, 1958, in Brussels, Belgium, where Belgian League champion Royal IV, defeated the Luxembourger League champions, Etzella Ettelbruck, by a score of 82–43.^[1] The most notable contributors to Riga's first title included center Jānis Krūmiņš and head coach Alexander Gomelsky.

23 teams. European national domestic league champions only, playing in a tournament system. The Finals were a two-game home and away aggregate.

Team 1	Agg.Tooltip Aggregate score	Team 2	1st leg	2nd leg
Rīgas ASK	176–112	Wissenschaft Berlin	85–56	91–56
Pantterit	131–133	Legia Warsaw	64–62	67–71

Team 1	Agg.Tooltip Aggregate score	Team 2	1st leg	2nd leg
Jonction	54–84*[2]	Slovan Orbis	54–84
Union Babenberg	98–191	Honvéd	55–83	43-108
Simmenthal Milano	205–89	The Wolves Amsterdam	115–47	90-42

*Series decided over one game played in Switzerland.

The winners of the three pairs in Group B played against each other, in a tournament held in Milan, in order to determine the two clubs that would progress to the Quarterfinals

Team 1	Score	Team 2
Simmenthal Milano	65 – 47	Slovan Orbis Praha
Slovan Orbis Praha	52–61	Honvéd
Simmenthal Milano	80–72	Honvéd

Team	Pld	W	L	PF	PA	PD	Pts
Simmenthal Milano	2	2	0	145	119	+26	4
Honvéd	2	1	1	133	132	+1	3
Slovan Orbis Praha	2	0	2	99	126	−27	2

Team 1	Agg.Tooltip Aggregate score	Team 2	1st leg	2nd leg
Jeunesse Sportivo Alep	–*	Union Beirut	–	–

*Union Beirut withdrew

Team 1	Agg.Tooltip Aggregate score	Team 2	1st leg	2nd leg
Panellinios	132–138	CCA București	60–63	72–75
Modaspor	112–160	AŠK Olimpija	67–74	45–86
Academic	157–101	Jeunesse Sportivo Alep	84–58	73–43

Team 1	Agg.Tooltip Aggregate score	Team 2	1st leg	2nd leg
Academic	161–144	AŠK Olimpija	81–80	80–64
CCA București	147–126	Maccabi Tel Aviv	84–65	63–61

Team 1	Agg.Tooltip Aggregate score	Team 2	1st leg	2nd leg
Royal IV	145–79	Etzella	82–43	63–36

Team 1	Agg.Tooltip Aggregate score	Team 2	1st leg	2nd leg
Royal IV	174–127	ASVEL	81–51	93–76
Barreirense	90–154	Real Madrid	51–68	40–86

	Quarterfinals						Semifinals						Final
	CCA București	64	78	142
	Academic	73	77	150
							Academic	89	76	165
							Honvéd	87	64	151
	Simmenthal Milano	80	85	165
	Honvéd	72	95	167
													Academic	81	71	152
													Rīgas ASK	86	84	170
	Real Madrid	78	43	121
	Royal IV	59	57	116
							Real Madrid	0	0	0
							Rīgas ASK	2	2	4
	Rīgas ASK	93	61	154
	Legia Warsaw	59	63	122

Team 1	Agg.Tooltip Aggregate score	Team 2	1st leg	2nd leg
CCA București	142–150	Academic	64–73	78–77
Simmenthal Milano	165–167	Honvéd	80–72*	85–95
Real Madrid	121–116	Royal IV	78–59	43–57
Rīgas ASK	154–122	Legia Warsaw	93–59	61–63

*The result of the game between the two clubs in the tournament of the 1st Round's Group B was used as a result for the 1st leg.

Team 1	Agg.Tooltip Aggregate score	Team 2	1st leg	2nd leg
Honvéd	151–165	Academic	87–89	64–76
Rīgas ASK	– *	Real Madrid

*Real Madrid withdrew as they were not allowed to travel to the Soviet Union.^[3]

Team 1	Agg.Tooltip Aggregate score	Team 2	1st leg	2nd leg
Rīgas ASK	170–152	Academic	86–81	84–71

1958 FIBA European Champions Cup Champions
Rīgas ASK 1st Title

• Jānis Krūmiņš ( Rīgas ASK)

• 1958 FIBA European Champions Cup
• 1958 FIBA European Champions Cup Archived 2017-03-21 at the Wayback Machine
• 1958 FIBA European Champions Cup^[usurped]
• Champions Cup 1958 Line-ups and Stats
• 1958 EuroLeague Retrospective and Stats Archived 2022-08-26 at the Wayback Machine