In the UK we have the Mind Sports Olympics held every year since 1997. There many games, not just Go are played. We have had Pair Go events there three times, in 2000, 2001 and 2003. The first of these featured strong players from around the world as there was cash prizes, not just the normal Gols, Silver and Bronze medals.
10 pairs joined in the first MSO Pair Go tournament. It was held during the fourth MSO at Alexander Palace, London, on 27th August 2000.
Pairs ranged from 7 dan to 10 kyu and were from China and the UK and slo multi-country pairs such as the German from London playing with the Korean from Russia.
The results started off as expected but third was a surprise. This was after a play-off against fouth placed Liu Yajie and Liao Xingwen (the result being determined by a half a point and a few clock seconds). Liao was 6 years old and about 4 dan in strength; he was playing with his Go teacher, Yajie, pro 2-dan. 
Prizes for 2/3 went to
The 5th MSO was at Southbank University London with Pair Go on 27th August 2001. The Pair Go results were as follows:
The 7th MSO was held at UMIST in Manchester, with Pair Go on 25th August 2003. This was the first MSO held in Manchester. Unfortunately the Pair Go and some other Go events were not very well attended.