| Doubles | |
|---|---|
| 1999 Copenhagen Open | |
| Champions |  Max Mirnyi  Andrei Olhovskiy [1] |
| Runners-up |  Marc-Kevin Goellner David Prinosil |
| Final score | 6–7(5–7), 7–6(7–4), 6–1 |
The 1999 Croatian Indoors was a men's tennis tournament played on carpet courts in Copenhagen, Denmark, that was part of the International Series of the 1999 ATP Tour. It was the twelfth edition of the tournament and was held from 2 February until 9 February 1998.
Champion seeds are indicated in bold text while text in italics indicates the round in which those seeds were eliminated.
Wayne Arthurs / 
Fabrice Santoro (quarterfinals)
Nicklas Kulti / Mikael Tillström (first round) Max Mirnyi / Andrei Olhovskiy (champions) Marc-Kevin Goellner / David Prinosil (final)| First round | Quarterfinals | Semifinals | Final [1] | ||||||||||||||||||||||||
| 1 | W Arthurs F Santoro | 6 | 1 | 6 | |||||||||||||||||||||||
 S Noteboom P Wessels | 3 | 6 | 3 | 1 | W Arthurs F Santoro | 5 | 6 | 5 | |||||||||||||||||||
 M Barnard B Haygarth | 6 | 7 | M Barnard B Haygarth | 7 | 3 | 7 | |||||||||||||||||||||
| G Silcock M Wakefield | 1 | 6 | M Barnard B Haygarth | 7 | 4 | 3 | |||||||||||||||||||||
| 4 | M-K Goellner D Prinosil | 7 | 6 | 4 | M-K Goellner D Prinosil | 6 | 6 | 6 | |||||||||||||||||||
| T Hildebrand J Landsberg | 6 | 2 | 4 | M-K Goellner D Prinosil | 7 | 7 | |||||||||||||||||||||
 M Bertolini C Brandi | 6 | 6 | M Bertolini C Brandi | 5 | 6 | ||||||||||||||||||||||
 K Pless J Tribler | 2 | 3 | 4 | M-K Goellner D Prinosil | 7 | 6 | 1 | ||||||||||||||||||||
| J Apell M Gustafsson | 7 | 6 | 6 | 3 | M Mirnyi A Olhovskiy | 6 | 7 | 6 | |||||||||||||||||||
| S Groen F Wibier | 6 | 7 | 3 | J Apell M Gustafsson | 6 | 3 | 2 | ||||||||||||||||||||
| 3 | M Mirnyi A Olhovskiy | 6 | 3 | 6 | 3 | M Mirnyi A Olhovskiy | 4 | 6 | 6 | ||||||||||||||||||
 T Ketola P Rosner | 3 | 6 | 3 | 3 | M Mirnyi A Olhovskiy | 6 | 7 | ||||||||||||||||||||
M Kohlmann  F Veglio | 6 | 5 | 6 | M Kohlmann F Veglio | 1 | 5 | |||||||||||||||||||||
| K Carlsen F Fetterlein | 2 | 7 | 4 | M Kohlmann F Veglio | 3 | 6 | 6 | ||||||||||||||||||||
N Godwin  M Keil | 6 | 7 | N Godwin M Keil | 6 | 3 | 4 | |||||||||||||||||||||
| 2 | N Kulti M Tillström | 2 | 6 | ||||||||||||||||||||||||
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The 1998 Copenhagen Open was a men's tennis tournament played on indoor carpet courts in Copenhagen, Denmark that was part of the International Series of the 1998 ATP Tour. It was the eleventh edition of the tournament and was held from 9 March through 15 March 1998.
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