2003 Miami Masters
| 2003 NASDAQ-100 Open | |
|---|---|
| Date | March 17 – March 30 |
| Edition | 19th |
| Category |
ATP Masters Series (men) Tier I Series (women) |
| Surface | Hard / Outdoor |
| Location | Key Biscayne, United States |
| Venue | Tennis Center at Crandon Park |
| Champions | |
| Men's Singles | |
 Andre Agassi
|
|
| Women's Singles | |
|
Serena Williams
|
|
| Men's Doubles | |
 Roger Federer /  Max Mirnyi
|
|
| Women's Doubles | |
 Liezel Huber /  Magdalena Maleeva
|
|
The 2003 NASDAQ-100 Open was a tennis tournament played on outdoor hard courts. It was the 19th edition of the Miami Masters and was part of the Tennis Masters Series of the 2003 ATP Tour and of Tier I of the 2003 WTA Tour. Both the men's and women's events took place at the Tennis Center at Crandon Park in Key Biscayne, Florida in the United States from March 17 through March 30, 2003.
Andre Agassi defeated 
Carlos Moyá 6–3, 6–3
Serena Williams defeated Jennifer Capriati 4–6, 6–4, 6–1
...
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