Progetto:Sport/Rugby/Lega celtica di rugby a 15

ed.	torneo	organizzatore	sponsor	formato	inizio	fine	squadre	vincitore	incontri	affluenza	item
1	Celtic League 2001-02			fase a gironi play-off	2001-08-17	2001-12-15	15	Leinster Rugby	56	252213	Q636920
2	Celtic League 2002-03			fase a gironi play-off	2002-08-30	2003-02-01	16	Munster Rugby	63	308374	Q1053220
3	Celtic League 2003-04			girone unico	2003-09-05	2004-05-14	12	Scarlets	132	501875	Q633769
4	Celtic League 2004-05			girone unico	2004-09-03	2005-04-16	11	Ospreys	110	470446	Q1053221
5	Celtic League 2005-06	Celtic Rugby Ltd		girone unico	2005-09-02	2006-05-27	11	Ulster Rugby	110	571311	Q545761
6	Celtic League 2006-07	Celtic Rugby Ltd	Magners	girone unico	2006-09-01	2007-05-12	11	Ospreys	110	661163	Q1537102
7	Celtic League 2007-08	Celtic Rugby Ltd	Magners	girone unico	2007-08-31	2008-05-10	10	Leinster Rugby	90	609015	Q1814519
8	Celtic League 2008-09	Celtic Rugby Ltd	Magners	girone unico	2008-08-31	2009-05-17	10	Munster Rugby	90	731328	Q1537051
9	Celtic League 2009-10	Celtic Rugby Ltd	Magners	girone unico play-off	2009-09-04	2010-05-29	10	Ospreys	93	818181	Q1819604
10	Celtic League 2010-11	Celtic Rugby Ltd	Magners	stagione regolare play-off	2010-09-03	2011-05-28	12	Munster Rugby	135	1019634	Q1884291
11	Pro12 2011-12	Celtic Rugby Ltd	Rabobank	stagione regolare play-off	2011-09-02	2012-05-27	12	Ospreys	135	1042374	Q144644
12	Pro12 2012-13	Celtic Rugby Ltd	Rabobank	stagione regolare play-off	2012-08-31	2013-05-25	12	Leinster Rugby	135	1106873	Q1637384
13	Pro12 2013-14	Celtic Rugby Ltd	Rabobank	stagione regolare play-off	2013-09-06	2014-05-31	12	Leinster Rugby	135	1107707	Q13419962
14	Pro12 2014-15	Celtic Rugby Ltd	Guinness	stagione regolare play-off	2014-09-05	2015-05-30	12	Glasgow Warriors	135	1159127	Q17009197
15	Pro12 2015-16	Celtic Rugby Ltd	Guinness	stagione regolare play-off	2015-09-04	2016-05-28	12	Connacht Rugby	135	1144802	Q20681579
16	Pro12 2016-17	Celtic Rugby Ltd	Guinness	stagione regolare play-off	2016-09-02	2017-05-27	12	Scarlets	135	1184091	Q24083741
17	Pro14 2017-18	Celtic Rugby Ltd	Guinness	fase a gironi play-off	2017-09-01	2018-05-26	14	Leinster Rugby	152	1301321	Q30640584
18	Pro14 2018-19	Celtic Rugby Ltd	Guinness	fase a gironi play-off	2018-08-31	2019-05-25	14	Leinster Rugby	152	1252435	Q54866728
19	Pro14 2019-20	Celtic Rugby Ltd	Guinness	fase a gironi play-off	2019-09-27	2020-09-12	14	Leinster Rugby	104		Q65059052
20	Pro14 2020-21	Celtic Rugby Ltd		fase a gironi incontro di finale	2020-10-02	2021-03-27	12	Leinster Rugby	96		Q99296835
21	United Rugby Championship 2021-22	Celtic Rugby Ltd		fase a gironi play-off	2021-09-24	2022-06-18	16	Stormers	151		Q107276781
22	United Rugby Championship 2022-23	Celtic Rugby Ltd		fase a gironi play-off	2022-09-16	2023-05-27	16				Q112227121
23	United Rugby Championship 2023-2024	Celtic Rugby Ltd		fase a gironi play-off	2023-10		16				Q119359555