 United Kingdom: Wimbledon - Doubles - Qualification |
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| Final | Pridham C./Shiras L. | Haygarth B./Talbot B. | 0:2 RET. (64:7, 3:6, 1:3) | details | 28.06.1991 |
| Semi-finals | Nido M./Orsanic D. | Pridham C./Shiras L. | 1:2 (66:7, 6:3, 6:8) | details | 26.06.1991 |
| Quarter-finals | Pridham C./Shiras L. | Morgan J./Stolle S. | 2:1 (7:611, 62:7, 6:2) | details | 24.06.1991 |
 Canada: Toronto - Doubles - Main |
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| 1/8-finals | Beckman C./Jensen L. | Shiras L./Wekesa P. | 2:0 (7:6, 7:5) | details | 25.07.1990 |
 USA: Newport - Doubles - Main |
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| Quarter-finals | Shiras L./Van Rensburg C. | Cahill D./Kratzmann M. | 1:2 (6:3, 2:6, 4:6) | details | 11.07.1990 |
| 1/8-finals | Kinnear K./Pearce B. | Shiras L./Van Rensburg C. | 1:2 (6:3, 4:6, 6:7) | details | 09.07.1990 |
 France: French Open - Doubles - Main |
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| 1/16-finals | Rive J./Shiras L. | Ivanisevic G./Korda P. | 0:2 (4:6, 4:6) | details | 31.05.1990 |
| 1/32-finals | Rive J./Shiras L. | Derlin B./Fulwood N. | 2:0 (6:1, 6:4) | details | 28.05.1990 |
| USA: Kiawah Island - Doubles - Main |
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| 1/8-finals | Dyke B./Wilkison T. | Rive J./Shiras L. | 2:1 (3:6, 6:4, 7:6) | details | 07.05.1990 |
 Hong Kong: Hong Kong - Doubles - Main |
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| 1/8-finals | Kuhnen P./Nelson T. | Jelen E./Shiras L. | 2:1 (5:7, 6:3, 6:4) | details | 23.04.1990 |
 South Korea: Seoul - Doubles - Main |
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| 1/8-finals | Matuszewski R./Shiras L. | Stoltenberg J./Woodbridge T. | 1:2 (6:4, 1:6, 6:7) | details | 16.04.1990 |
 Japan: Tokyo - Doubles - Main |
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| 1/8-finals | Matuszewski R./Shiras L. | Connell G./Michibata G. | 0:2 (5:7, 2:6) | details | 11.04.1990 |
| 1/16-finals | Matuszewski R./Shiras L. | Bloom G./Mansdorf A. | 2:1 (6:4, 2:6, 7:6) | details | 09.04.1990 |
| USA: Orlando - Doubles - Main |
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| Semi-finals | Mora A./Page B. | Layendecker G./Shiras L. | 2:1 (3:6, 6:4, 6:2) | details | 07.04.1990 |
| Quarter-finals | Layendecker G./Shiras L. | Beckman C./Dyke B. | 2:0 (6:3, 6:4) | details | 04.04.1990 |
| 1/8-finals | Gunthardt H./Zoecke M. | Layendecker G./Shiras L. | 0:2 (6:7, 6:7) | details | 02.04.1990 |
| USA: Philadelphia - Doubles - Main |
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| 1/16-finals | Davis M./Van't Hof R. | Gilbert B./Shiras L. | 2:1 (4:6, 6:2, 7:6) | details | 19.02.1990 |
| Canada: Toronto 2 - Doubles - Main |
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| 1/16-finals | Cassidy D./Shiras L. | Lozano J./Witsken T. | 0:2 (4:6, 4:6) | details | 12.02.1990 |
 Australia: Australian Open - Doubles - Main |
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| 1/32-finals | Kuhnen P./Lavalle L. | MacPherson D./Shiras L. | 2:1 (6:3, 6:7, 7:6) | details | 15.01.1990 |
Singapore: Singapore - Singles - Main