Daisy started out in martial arts training.   In 1992, she became a European Taekwondo Champion.  In 1995, she  won the World Kickboxing Championships in the USA.

In 1996, Daisy decided to try her hand at boxing.  She made her pro debut on February 27, 1996.  She defeated her first opponent, Darina Chakolawa,  with a 3rd round TKO.  

Daisy then had her second pro bout on July 6, 1996, and fought to a six-round unanimous decision against  Nathalie Meiss. Within about six weeks, she had her third fight against Bresda Movotno, where she stopped Movotna in the third round, bringing her record to 3-0, with 2 KO's.

On November 29, 1997, Daisy Lang's lost her first pro bout to Michelle Aboro.  The loss did not hold her back though and on February 14, 1998, she fought Valeri Rangeard in Stuttgart, Germany.  She stopped her opponent in the 4th round.

On October 3, 1998, in Augsburg, Germany she fought Krisztina Horvai of Hungary.  She won by a 10-round decision, and she walked away with the vacant WIBF European bantamweight title (115lb).  The judges scoring was unanimous, 99-91, 99-88, 100-88.  Her record was raised to 5-1 3KO's, and Horvais's record dropped to 4-5-1.   

Other fights included, January 30, 1999, in Cottbus, Germany, against Portugal's Sandra Podence. She defeated Podence in the 2nd round with a TKO.  She then fought Anastasia Touktalova, Russia on March 27, 1999, in Cologne, Germany.  She won that fight by a 10-round unanimous decision, even though it was felt that it was a controversial win by the boxing fans that viewed the fight.   

On July 17, 1999 in Düsseldorf, Germany, she fought Gizella Papp (114 1/2) of Hungary for the vacant WIBF Junior Bantamweight Title.  Lang won by a 7th round TKO. 

 On October 23, 1999, she successfully defended her WIBF Jr. Bantamweight title against Sonia Pereira.  She won a 10-rd decision, bringing her record to 9-1, 5KO's.  

On May 13, 2000 in Germany, on the "Ladies Night" card put on by Universum Promotions, Daisy Lang TKO'd her opponent Ruana Sandor in 1:07 of the  third round when her corner threw in the towel. 

October 14, 2000,  Düsseldorf, Germany,  Lang defended her WIBF Jr. Bantamweight title and retained her title, fighting 10-rounds with Brenda Burnside of New Mexico. All three judges scored the bout 96-94, 100-91, 100-91 for lang. 

On January 27, 2000,in Munich, Germany, on a Universum card, Lang defended her WIBF title at jr. bantamweight against Nadia Debras.  Lang won by a unanimous decision, with final scoring of 96-94, 98-93, and 99-92.  Marcel Niessen said, "Even though Debras' left eye was swelling badly she didn't stop moving forward and trading punches with Lang." Lang is now 12-1-0.

Boxing: Daisy Lang defends her World Championship title on Saturday The lady who really wanted to be a leopard Hamburg (dpa). Outside the ring she is personified gentleness, but inside the ropes she becomes a wild cat. Daisy Lang, Pro boxer from the Hamburg Universum Stable, defends her World Championship Title in Junior Bantam Weight for the second time in Duisburg on Saturday (DSF/22:OO)

Her opponent, Canadian Kathy Williams, will be her first big "ripeness" test, according to her trainer Michael Timm. 

Her real name is Deisislawa Kirowa and comes from Sofia. "Deisislawa is the name of a Bulgarian queen. But a lot of people find it too long" explains the World Champ. "And as I have very long legs, I was just called Daisy Lang by the others in the gym" The 27 year old Bulgarian have now found a new home in Düsseldorf. Her waving blond hair, body clinging leather outfit, as well as her soft voice and seductive laughter, does not fit the cliche of a slugging female. "Boxing is not a slug match, it is art" according to her.

Daisy Lang received the nickname "The Lady", because the pronounced feminine sides of her nature outside the ring, leaves a lasting impression. I really wanted to the name "Leopard". "I like the animals verymuch. I would like to have their speed, power and explosive power" she says "But in my soul I am a true Lady". However, in the ring it is over with politeness and restraint. "I am not there to kiss my opponent" Her sports career have brought her many titles: Taekwondo European Champion 1992, European kick boxing champion 1994, Karate World Champion 1995 and Kick boxing World Champion 1995. The 1.70 Meter (5'7") tall woman turned to por boxing in 1996. She has won 9 out of 10 pro fights.

Boxing is genuine training for life, for the physio therapeut, who is studying for her grade at the Cologne Sport School. "This one-on-one sport can be compared to real life. Others will help you to prepare for the fight, but in the ring you will have to solve your problems on your own" Trainer Michael Timm confirms his protege's extreme will power.

"She has made good progress on the tecnical side, but we are still not where we want to be. The power potential must be increased" according to Timm. 

Besides the Junior Bantam Weight championship fight in the Duisubrger Rhein-Ruhr-Halle, there is a further women's championship fight.