2012 | 2012 Summer Olympics | 2012 ATP Challenger Tour | World Rally Championship | World Championship | NCAA Men's Division I Basketball Championship | Ultimate Fighting Championship | World Championship Wrestling | 2012 ATP World Tour | United States elections, 2012 | AFC Ajax | 2012 in radio | 2012 Summer Paralympics | UEFA Euro 2012 | World Touring Car Championship | 2012 ITF Women's Circuit | Six Nations Championship | County Championship | British Touring Car Championship | AFC | World Chess Championship | national championship | All-Ireland Senior Hurling Championship | Football League Championship | Extreme Championship Wrestling | Bowl Championship Series | Championship | All-Ireland Senior Football Championship | 2005 World Touring Car Championship season | The Open Championship |
Also in 1977, at Cagnes-sur-Mer, he won the World Under-16 championship (ahead of other distinguished young talents, including Garry Kasparov), before becoming Icelandic champion on the first of three occasions (1977, 1982 and 1988).
With Italy's junior national teams, he played at the 2007 FIBA Europe Under-16 Championship and the 2008 FIBA Europe Under-18 Championship.
Giannakis led the Greek junior national team to the silver medal at the FIBA Europe Under-16 Championship of 1975.
Shahid Dastgerdi Stadium along with Rah Ahan Stadium hosted the 2012 Asian under 16 Championship.
Although China U-20 qualified into the 2012 AFC U-19 Championship, he was sent off in the last match against Australia with a flagrant foul, which team manager Jan Olde Riekerink considered it as a disgraceful action and said he would never call up Sun for the U-20s squad in the future.