GM Chan Ok Choi

1982
1st place German Championship Cologne GER
1st place Dutch Open Nijmegen NED
1st place German Open Frankfurt/Main GER
2st place European Championship Rome ITA
1st place European Championship Team Rome ITA

1983
1st place German Championship Osnabruck GER
2nd place Turkey Open Ankara TUR
1st place German Open Cologne GER
3rd place World Championship Copenhagen DEN

1984
1st place German Championship Stuttgart GER
1st place Dutch Open Nijmegen NED
2nd place German Open Frankfurt/Main GER
1st place Turkey Open Antalya TUR
3rd place Cyprus Open Girne CYP
2nd place European Championship Stuttgart GER
1st place European Championship Team Stuttgart GER

1985
1st place German Championship Ludwigshafen GER
1st place Dutch Open Hertogenbosch NED
2nd place German Open Aachen GER
1st place Turkey Open Antalya TUR
1st place Cyprus Open Lefkosa CYP
Quarter final World Games London GBR
Quarter final World Championship Seoul KOR

1986
1st place German Championship Karlaruhe GER
2nd place Belgium Open Lüttich BEL
1st place European Championship Seefeld / AUT
1st place European Championship Team Seefeld / AUT

1987
1st place German Championship Garmisch-Partenkirchen GER
1st place Dutch Open Den Bosch NED
1st place German Open Schwalbach GER
2nd place Belgium Open Lüttich BEL
1st place France Open Paris FRA
1st place President Cup Lefkosa CYP
Quarter final World Cup Helsinki FIN

1988
1st place German Championship Dormagen GER
2nd place German Open Neuss GER
Quarter final Olympic Games Seoul KOR 1989
1st place German Championship Marburg GER
1st place Dutch Open Delft NED
1st place German Open Aachen GER
Quarter final World Cup Cairo EGY
Quarter final World Games Karlsruhe GER
Quarter final World Championship Seoul KOR