2012–13 A-1 League
The 2012–13 A-1 League was the 22nd season of the A-1 Liga, the highest professional basketball league in Croatia.
The first half of the season consists of 10 teams and 100-game regular season begins on Saturday, October 6, 2012 and ended on Sunday, March 17, 2012. For second half of the season clubs will be divided into two groups. Championship group will consists of 4 teams from Adriatic League and the best 4 teams from first half of the season. Relegation group will consist of bottom 6 teams from first half of the season.
Teams and venues
- Relegated to A-2 Liga
- *
Sonik-Puntamika - Promoted from A-2 Liga'''
- *Osječki sokol
Regular season
| # | Team | Pts | Pld | W | L | PF | PA |
| 1 | KK Zagreb | 32 | 18 | 14 | 4 | 1480 | 1350 |
| 2 | KK Kvarner 2010 | 31 | 18 | 13 | 5 | 1379 | 1218 |
| 3 | KK Alkar | 30 | 18 | 12 | 6 | 1405 | 1334 |
| 4 | KK Jolly JBŠ | 30 | 18 | 12 | 6 | 1525 | 1413 |
| 5 | KK Vrijednosnice OS Darda | 28 | 18 | 10 | 8 | 1326 | 1288 |
| 6 | KK Đuro Đaković | 28 | 18 | 10 | 8 | 1366 | 1358 |
| 7 | KK Zabok | 25 | 18 | 7 | 11 | 1371 | 1337 |
| 8 | KK Križevci | 24 | 18 | 6 | 12 | 1304 | 1440 |
| 9 | KK Osječki sokol | 23 | 18 | 5 | 13 | 1371 | 1505 |
| 10 | KK Dubrovnik | 19 | 18 | 1 | 17 | 1248 | 1532 |
Championship Round
| # | Team | Pts | Pld | W | L | PF | PA | Diff |
| 1 | Cibona | 26 | 14 | 12 | 2 | 1186 | 1060 | +126 |
| 2 | Zadar | 25 | 14 | 11 | 3 | 1175 | 1072 | +103 |
| 3 | Cedevita | 25 | 14 | 11 | 3 | 1239 | 997 | +242 |
| 4 | Jolly JBŠ | 21 | 14 | 7 | 7 | 1003 | 1032 | -29 |
| 5 | Kvarner 2010 | 21 | 14 | 7 | 7 | 988 | 1073 | -85 |
| 6 | Split | 19 | 14 | 5 | 9 | 999 | 1055 | -56 |
| 7 | Zagreb | 16 | 14 | 2 | 12 | 1102 | 1195 | -93 |
| 8 | Alkar | 15 | 14 | 1 | 13 | 1015 | 1223 | -208 |
Relegation and Promotion Rounds
Relegation Round
| # | Team | Pts | Pld | W | L | PF | PA | Diff |
| 1 | Đuro Đaković | 34 | 20 | 14 | 6 | 1533 | 1421 | +112 |
| 2 | VROS Darda | 33 | 20 | 13 | 7 | 1510 | 1414 | +96 |
| 3 | Zabok | 31 | 20 | 11 | 9 | 1625 | 1504 | +121 |
| 4 | Osječki sokol | 30 | 20 | 10 | 10 | 1559 | 1593 | -34 |
| 5 | Križevci | 29 | 20 | 9 | 11 | 1532 | 1586 | -54 |
| 6 | Dubrovnik | 23 | 20 | 3 | 17 | 1453 | 1694 | -241 |
Promotion Round
| # | Team | Pts | Pld | W | L | PF | PA | Diff |
| 1 | GKK Šibenik | 16 | 8 | 8 | 0 | 763 | 606 | +157 |
| 2 | Škrljevo | 13 | 8 | 5 | 3 | 708 | 664 | +44 |
| 3 | Belišće | 11 | 8 | 3 | 5 | 593 | 623 | -30 |
| 4 | Hermes Analitica | 11 | 8 | 3 | 5 | 636 | 670 | -34 |
| 5 | Čakovec | 9 | 8 | 1 | 7 | 560 | 709 | -149 |
Relegation/Promotion Play-off
Relegation league 5th-placed team Križevci faces the 2nd-placed Promotion league side Škrljevo in a two-legged play-off. The winner on aggregate score after both matches will earn a spot in the 2013–14 A-1 League.Škrljevo">KK Škrljevo">Škrljevo vs. Križevci">KK Križevci">Križevci
retained its A-1 League status.Playoffs
Bracket
Semifinals
The semifinals are best-of-3 series.Cibona">KK Cibona">Cibona vs. KK Jolly JBŠ">KK Jolly Jadranska Banka">KK Jolly JBŠ
Zadar">KK Zadar">Zadar vs. Cedevita">KK Cedevita">Cedevita
Finals
The finals are best-of-5 series.Cibona">KK Cibona">Cibona vs. Zadar">KK Zadar">Zadar
| 2013 A-1 League |
| Cibona Zagreb 18th Title |