Saturday's third Test between the Springboks and the British & Irish Lions will be the eighth occasion in which the Lions and their opponents have gone into the final match with the series all square.
The Lions have won two of the previous deciders, the host nation four and one was drawn.
1903 (South Africa)
The first two Tests were drawn 10-10 and 0-0. South Africa won the decider 8-0 in Cape Town.
1910 (South Africa)
The Springboks won the first Test 14-10 and the Lions the second 8-3. The hosts won the decider 21-5 in Cape Town.
Australia won the first Test 30-12, but the Lions triumphed 19-12 and 19-18 in the next two.
1993 (New Zealand)
New Zealand opened the series with a 20-18 win, then lost 20-7 before achieving a 30-13 victory in the decider.
The Lions opened with a 29-13 win but Australia won the next two Tests 35-14 and 29-23.
The Lions won the first Test 23-21 but Australia edged the second 16-15. Coach Warren Gatland made six changes for the decider, which the Lions won 41-16.
2017 (New Zealand)
The All Blacks won the first Test 30-15, the Lions the second 24-21 and the third Test was drawn 15-15. The only other time the honours were shared in a Lions series was in South Africa in 1955 when a four-match series finished 2-2.
15 Willie le Roux, 14 Cheslin Kolbe, 13 Lukhanyo Am, 12 Damian de Allende, 11 Makazole Mapimpi, 10 Handre Pollard, 9 Cobus Reinach, 8 Jasper Wiese, 7 Franco Mostert, 6 Siya Kolisi (captain), 5 Lood de Jager, 4 Eben Etzebeth, 3 Frans Malherbe, 2 Bongi Mbonambi, 1 Steven Kitshoff
Substitutes: 16 Malcolm Marx, 17 Trevor Nyakane, 18 Vincent Koch, 19 Marco van Staden, 20 Kwagga Smith, 21 Herschel Jantjies, 22 Morne Steyn, 23 Damian Willemse
British & Irish Lions
15 Liam Williams (Wales), 14 Josh Adams (Wales), 13 Robbie Henshaw (Ireland), 12 Bundee Aki (Ireland), 11 Duhan van der Merwe (Scotland), 10 Dan Biggar (Wales), 9 Ali Price (Scotland), 8 Jack Conan (Ireland), 7 Tom Curry (England), 6 Courtney Lawes (England), 5 Alun Wyn Jones (captain, Wales), 4 Maro Itoje (England), 3 Tadhg Furlong (Ireland), 2 Ken Owens (Wales), 1 Wyn Jones (Wales)
Substitutes: 16. Luke Cowan-Dickie (England), 17 Mako Vunipola (Saracens, England), 18 Kyle Sinckler (England), 19 Adam Beard (Wales), 20 Sam Simmonds (England), 21 Conor Murray (Ireland), 22 Finn Russell (Scotland), 23 Elliot Daly (England)