Tri Nations Series champion is the title given to the rugby union nation (either Australia, New Zealand, South Africa, or, since 2012, Argentina) that finishes at the top of competition table of the annual Tri Nations Series. The Bledisloe Cup, an Australian-New Zealand trophy is also awarded within the series.

Each nation plays each other thrice on a home and away basis, though the number of games against each side was expanded from two to three in 2006. A nation receives four points for a win, two for a draw and none for a loss. A nation can obtain a bonus point by either scoring four tries in a match or by losing by seven points or less to the opposition. If nations finish level on points (points for winning, drawing and bonus match points), the first tiebreaker is point differential (the actual in game scoreline, a cumulative scoreline difference). The scoreline difference is worked out by subtracting the number of points a nation has had scored against them from the total points they have scored in the series. Should teams still be level, this is followed by number of tries scored by a nation during the series.

The Tri Nations was created amongst the SANZAR partners (along with the provincial Super 12 competition, now, Super Rugby). The tournament involves three southern hemisphere nations; Australia, New Zealand and South Africa. The series was created to form a similar competition to the Six Nations Championship (then, the Five Nations). The first tournament was held in 1996, which New Zealand won. It has subsequently been held annually. The competition has largely been dominated by New Zealand, who have won 10 championships, whereas Australia and South Africa have each won the series three times. New Zealand has won consecutive championships on three occasions (1996–97, 2002–03, and 2005–08) and Australia on one occasion (2000–01).

Year	Duration	Table position	Nation	Games				Points			Bonus points	Table points
				Played	Won	Drawn	Lost	For	Against	Difference
1996	6 July – 10 August	1	New Zealand	4	4	0	0	119	60	+59	1	17
		2	South Africa	4	1	0	3	70	84	−14	2	6
		3	Australia	4	1	0	3	71	116	−45	2	6
1997	19 July – 27 August	1	New Zealand	4	4	0	0	159	109	+50	2	17
		2	South Africa	4	1	0	3	148	144	+4	3	7
		3	Australia	4	1	0	3	96	150	−54	2	6
1998	11 July – 22 August	1	South Africa	4	4	0	0	80	54	+26	1	17
		2	Australia	4	2	0	2	79	82	−3	2	10
		3	New Zealand	4	0	0	4	65	88	−23	2	2
1999	10 July – 28 August	1	New Zealand	4	3	0	1	103	61	+42	0	12
		2	Australia	4	2	0	2	84	57	+27	2	10
		3	South Africa	4	1	0	3	34	103	−69	0	4
2000	15 July – 26 August	1	Australia	4	3	0	1	104	86	+18	2	14
		2	New Zealand	4	2	0	2	127	117	+10	2	10
		3	South Africa	4	1	0	3	82	110	−28	2	6
2001	21 July – 1 September	1	Australia	4	2	1	1	81	75	+6	1	11
		2	New Zealand	4	2	0	2	79	70	+9	1	9
		3	South Africa	4	1	1	2	52	67	−15	0	6
2002	13 July – 17 August	1	New Zealand	4	3	0	1	97	65	+32	3	15
		2	Australia	4	2	0	2	91	86	+5	3	11
		3	South Africa	4	1	0	3	103	140	−37	3	7
2003	12 July – 16 August	1	New Zealand	4	4	0	0	142	65	+77	2	18
		2	Australia	4	1	0	3	89	106	−17	2	6
		3	South Africa	4	1	0	3	62	122	−60	0	4
2004	17 July – 21 August	1	South Africa	4	2	0	2	110	98	+12	3	11
		2	Australia	4	2	0	2	79	83	−4	2	10
		3	New Zealand	4	2	0	2	83	91	−8	1	9
2005	30 July – 3 September	1	New Zealand	4	3	0	1	111	86	+25	3	15
		2	South Africa	4	3	0	1	93	82	−11	1	13
		3	Australia	4	0	0	4	72	108	−36	3	3
2006	8 July – 9 September	1	New Zealand	6	5	0	1	179	112	+67	3	23
		2	Australia	6	2	0	4	133	121	+12	3	11
		3	South Africa	6	2	0	4	106	185	−79	1	9
2007	16 June – 21 July	1	New Zealand	4	3	0	1	100	59	+41	1	13
		2	Australia	4	2	0	2	76	80	-4	1	9
		3	South Africa	4	1	0	3	66	103	-37	1	5
2008	5 July – 13 September	1	New Zealand	6	4	0	2	152	106	+46	3	19
		2	Australia	6	3	0	3	119	163	-44	2	14
		3	South Africa	6	2	0	4	115	117	-2	2	10
2009	18 July – 19 September	1	South Africa	6	5	0	1	158	130	+28	1	21
		2	New Zealand	6	3	0	3	141	131	+10	1	13
		3	Australia	6	1	0	5	103	141	-44	3	7
2010	10 July – 11 September	1	New Zealand	6	6	0	0	184	111	+73	3	27
		2	Australia	6	2	0	4	162	188	-26	3	11
		3	South Africa	6	1	0	5	147	194	-47	3	7
2011	23 July – 27 August	1	Australia	4	3	0	1	92	79	+13	1	13
		2	New Zealand	4	2	0	2	95	64	+31	2	10
		3	South Africa	4	1	0	3	54	98	-44	1	5
2020	31 October – 5 December	1	New Zealand	4	2	0	2	118	54	+64	3	11
		2	Argentina	4	1	2	1	56	84	–28	0	8
		3	Australia	4	1	2	1	60	96	–36	0	8

Tri Nations (1996–2011; 2020)

Nation	Matches				Points			Bonus points	Table points	Titles won
	P	W	D	L	PF	PA	PD
New Zealand	76	52	0	24	2,054	1,449	+605	35	243	11
Australia	76	30	3	43	1,591	1,817	−226	34	160	3
South Africa	72	28	1	43	1,480	1,831	−351	24	138	3
Argentina	4	1	2	1	56	84	–28	0	8	0

Rugby Championship (since 2012)

Nation	Matches				Points			Bonus points	Table points	Titles won
	P	W	D	L	PF	PA	PD
New Zealand	63	51	2	10	2,154	1,197	+957	40	249	9
South Africa	63	33	4	26	1,637	1,383	+254	30	166	2
Australia	63	26	3	34	1,411	1,735	−324	14	131	1
Argentina	63	12	1	50	1,196	2,063	−867	14	60	0

All-time Tri Nations and Rugby Championship Table (since 1996)

Nation	Matches				Points			Bonus points	Table points	Titles won
	P	W	D	L	PF	PA	PD
New Zealand	139	103	2	34	4,208	2,646	+1,562	75	492	20
South Africa	135	61	5	69	3,117	3,214	–97	55	308	5
Australia	139	56	6	77	3,002	3,583	–581	48	291	4
Argentina	67	12	3	52	1,262	2,147	–885	14	68	0

• "ALL-TIME TRI-NATIONS TABLE". iafrica.com. Retrieved 16 May 2006.
• "Tri-Nations history". bbc.co.uk. Retrieved 16 May 2006.
• "Fixtures & Results". scrum.com. Retrieved 16 May 2006.

• Allblacks.com
• Rugby.com.au
• SA Rugby