# Stefan Karlsson (badminton)

Stefan Karlsson (born 5 November 1955) is a retired badminton player from Sweden who competed at the highest world level. He later changed name to Stefan Mellgård.

## Career

Though he played Thomas Cup singles for Sweden and won the Swedish national singles title twice, his greatest successes came in doubles. He won men's doubles at the biennial European Championships twice, with Claes Nordin in 1980 and with Thomas Kihlström in 1982. In 1983 he shared the prestigious All-England men's doubles title with Kihlström. He won the silver medal at the 1985 IBF World Championships in mixed doubles with Maria Bengtsson.

## Achievements
### World Games

Men's doubles
| Year | Venue | Partner | Opponent | Score | Result |
| 1981 | San Jose Civic Auditorium, California, United States | Thomas Kihlström | Sun Zhian Yao Ximing | 15–12, 4–15, 6–15 | Silver |

### World Championships

Mixed doubles
| Year | Venue | Partner | Opponent | Score | Result |
| 1985 | Olympic Saddledome, Calgary, Canada | Maria Bengtsson | Park Joo-bong Yoo Sang-hee | 10–15, 15–12, 12–15 | Silver |

### European Championships

Men's doubles
| Year | Venue | Partner | Opponent | Score | Result |
| 1978 | Preston, England | Claes Nordin | Mike Tredgett Ray Stevens | 12–15, 15–10, 4–15 | Bronze |
| 1980 | Groningen, Netherlands | Claes Nordin | Bengt Fröman Thomas Kihlström | 18–16, 9–15, 15–13 | Gold |
| 1982 | Böblingen, West Germany | Thomas Kihlström | Mike Tredgett Martin Dew | 15–9, 15–3 | Gold |
| 1986 | Uppsala, Sweden | Thomas Kihlström | Steen Fladberg Jesper Helledie | 12–15, 17–18 | Silver |
| 1988 | Kristiansand, Norway | Peter Axelsson | Jan Paulsen Steen Fladberg | 10–15, 15–7, 10–15 | Bronze |
Mixed doubles
| Year | Venue | Partner | Opponent | Score | Result |
| 1986 | Uppsala, Sweden | Maria Bengtsson | Nigel Tier Gillian Gowers | 11–15, 12–15 | Bronze |

### European Junior Championships

Boys' doubles
| Year | Venue | Partner | Opponent | Score | Result |
| 1973 | Edinburgh, Scotland | Willy Nilsson | Jesper Helledie Jacob Dynnes Hansen | 15–9, 15–12 | Gold |

### International Tournaments

Men's doubles
| Year | Tournament | Partner | Opponent | Score | Result |
| 1979 | All England Open | Claes Nordin | Tjun Tjun Johan Wahjudi | 16–17, 3–15 | Runner-up |
| 1980 | English Masters | Thomas Kihlström | Ade Chandra Christian Hadinata | 12–15, 12–15 | Runner-up |
| 1981 | Copenhagen Cup | Thomas Kihlström | Rudy Heryanto Kartono Hariamanto | 15–10, 12–15, 17–15 | Winner |
| 1981 | Denmark Open | Thomas Kihlström | Ade Chandra Christian Hadinata | 5–15, 18–15, 10–15 | Runner-up |
| 1981 | Swedish Open | Thomas Kihlström | Hadibowo Bobby Ertanto | 15–6, 15–4 | Winner |
| 1981 | English Masters | Thomas Kihlström | Mike Tredgett Martin Dew | 9–15, 15–2, 10–15 | Runner-up |
| 1981 | India Open | Thomas Kihlström | Rudy Heryanto Kartono Hariamanto | 6–15, 15–8, 17–15 | Winner |
| 1982 | Swedish Open | Thomas Kihlström | Christian Hadinata Lius Pongoh | 11–15, 8–15 | Runner-up |
| 1982 | Hong Kong Open | Thomas Kihlström | Rudy Heryanto Kartono Hariamanto | 13–15, 6–15 | Runner-up |
| 1982 | Scandinavian Cup | Thomas Kihlström | Steen Fladberg Steen Skovgaard | 15–13, 13–15, 15–10 | Winner |
| 1983 | English Masters | Thomas Kihlström | Rudy Heryanto Kartono Hariamanto | 12–15, 15–8, 15–11 | Winner |

### IBF World Grand Prix

The World Badminton Grand Prix sanctioned by International Badminton Federation (IBF) from 1983 to 2006.
Men's doubles
| Year | Tournament | Partner | Opponent | Score | Result |
| 1983 | Chinese Taipei Open | Thomas Kihlström | Hadibowo Bobby Ertanto | 9–15, 11–15 | Runner-up |
| 1983 | Japan Open | Thomas Kihlström | Icuk Sugiarto Rudy Heryanto | 18–14, 6–15, 15–6 | Winner |
| 1983 | Denmark Open | Thomas Kihlström | | | Winner |
| 1983 | Swedish Open | Thomas Kihlström | Steen Fladberg Jesper Helledie | 15–4, 13–15, 10–15 | Runner-up |
| 1983 | All England Open | Thomas Kihlström | Martin Dew Mike Tredgett | 15–10, 15–13 | Winner |
| 1984 | Chinese Taipei Open | Thomas Kihlström | Steen Fladberg Jesper Helledie | 15–3, 15–6 | Winner |
| 1984 | Japan Open | Thomas Kihlström | Martin Dew Steve Baddeley | 15–6, 15–6 | Winner |
| 1984 | Swedish Open | Thomas Kihlström | Kim Moon-soo Park Joo-bong | 8–15, 15–10, 8–15 | Runner-up |
| 1985 | Swedish Open | Thomas Kihlström | Li Yongbo Ding Qiqing | 12–15, 18–14, 15–18 | Runner-up |
| 1987 | Chinese Taipei Open | Mark Christiansen | Eddy Hartono Liem Swie King | 4–15, 5–15 | Runner-up |
| 1987 | Dutch Open | Mark Christiansen | Rudy Gunawan Bambang Subagio | 15–8, 15–2 | Winner |
| 1987 | Carlton-Intersport Cup | Mark Christiansen | Jesper Knudsen Henrik Svarrer | 15–6, 15–10 | Winner |
Mixed doubles
| Year | Tournament | Partner | Opponent | Score | Result |
| 1985 | Swedish Open | Maria Bengtsson | Lee Deuk-choon Chung Myung-hee | 15–5, 11–15, 15–7 | Winner |
| 1985 | Scandinavian Open | Maria Bengtsson | Nigel Tier Gillian Gowers | 15–8, 5–15, 11–15 | Runner-up |
| 1987 | Dutch Open | Maria Bengtsson | Mark Christiansen Erica van Dijck | 10–15, 15–2, 15–9 | Winner |
| 1987 | Scandinavian Open | Maria Bengtsson | Li Ang Pan Zhenli | 15–12, 7–15, 15–3 | Winner |
| 1987 | World Grand Prix Finals | Maria Bengtsson | Billy Gilliland Gillian Gowers | 15–8, 18–15 | Winner |

### IBF International

Men's doubles
| Year | Tournament | Partner | Opponent | Score | Result |
| 1984 | Nordic Championships | Thomas Kihlström | Mark Christiansen Michael Kjeldsen | 15–11, 14–18, 18–14 | Winner |