1999 IBF World Championships

{{infobox badminton event

|name = 1999 IBF World Championships

|image =

|size = 150px

|caption =

|dates = 10 May – 23 May

|number_edition = 11th

|level = 1

|prize_money =

|other =

|competitors =

|nations =

|venue = Brøndby Arena

|location = Copenhagen, Denmark

|previous = 1997 Glasgow

|next = 2001 Seville

}}

{{Sidebar games events

| name = 1999IBFWorldChampionships

| title = Events at the 1999
IBF World Championships

| image = 50px

| event1.1 = Singles

| results1.1a = men

| results1.1b = women

| event1.2 = Doubles

| results1.2a = men

| results1.2b = women

| results1.2c = mixed

}}

The 1999 IBF World Championships (World Badminton Championships) were held in Copenhagen, Denmark, between 10 May and 23 May 1999. During men's single semi final match between Fung Permadi and Peter Gade, a historical decision was made by Permadi. The score was 14 all in the third set with Gade held the match point. Commonly, a serve receiver will opt for deuce. At odds Permadi refused it. Disturbed with the peculiar, Gade fouled his serve then returned Permadi's serve to the net and lost the match by the score 14-15. The same scenario happened in the women final match. Camilla Martin chose not to play the deuce and won against Dai Yun. She was engaged to Gade then and subsequently avenged for her fiancée.