# National Invitation Tournament 2003

El National Invitation Tournament 2003 fue la sexagésimo sexta edición del National Invitation Tournament. La disputaron 40 equipos, celebrándose la fase final de la competición en el Madison Square Garden de Nueva York. El ganador fue la Universidad St. John's, pero posteriormente fue desposeida del título por una alineación indebida de uno de sus jugadores. También quedó vacante el título de MVP obtenido por Marcus Hatten.

## Equipos

Participantes :
| Universidad | Conferencia | Universidad | Conferencia |
| Boston College | Big East | Boston University | A-East |
| Brown | Ivy | College of Charleston | SoCon |
| DePaul | C-USA | Drexel | CAA |
| Eastern Washington | Big Sky | Fairfield | MAAC |
| Georgetown | Big East | Georgia Tech | ACC |
| Hawaii | WAC | Iowa | Big Ten |
| Iowa State | Big 12 | Kent State | MAC |
| Louisiana–Lafayette | Sun Belt | Minnesota | Big Ten |
| Nevada | WAC | North Carolina | ACC |
| Ohio State | Big Ten | Providence | Big East |
| Rhode Island | A-10 | Richmond | A-10 |
| St. John's | Big East | Saint Louis | C-USA |
| San Diego State | MWC | Seton Hall | Big East |
| Siena | MAAC | Temple | A-10 |
| Tennessee | SEC | Texas Tech | Big 12 |
| UAB | C-USA | UC Santa Bárbara | Big West |
| UIC | Horizon | UNLV | MWC |
| Valparaiso | Mid-Con | Villanova | Big East |
| Virginia | ACC | Western Michigan | MAC |
| Wichita State | MVC | Wyoming | MWC |

## Fase final

Cuadro final de resultados.
| Fase previa | Fase previa | Fase previa | Primera ronda | Primera ronda | Primera ronda | Segunda ronda | Segunda ronda | Segunda ronda | | Cuartos de final | Cuartos de final | Cuartos de final |
| | | | Texas Tech | Texas Tech | 66 | | | |
| | | | Nevada | Nevada | 54 | | | |
| | | | | | | Texas Tech | Texas Tech | 57 |
| | | | | | | San Diego State | San Diego State | 48 |
| | | | San Diego State | San Diego State | 67 | | | |
| | | | UC Santa Bárbara | UC Santa Bárbara | 62 | | | |
| | | | | | | | | | | Texas Tech | Texas Tech | 80 |
| | | | | | | | | | | Georgia Tech | Georgia Tech | 72 |
| | | | Georgia Tech | Georgia Tech | 72 | | | |
| | | | Ohio State | Ohio State | 58 | | | |
| | | | | | | Georgia Tech | Georgia Tech | 79 |
| | | | | | | Iowa | Iowa | 78 |
| Iowa | Iowa | 62 | | | | | | | Iowa | Iowa | 78 | |
| Valparaiso | Valparaiso | 60 | | | | | | |
| Valparaiso | Valparaiso | 60 | Iowa | Iowa | 54 | | | |
| | | | Iowa State | Iowa State | 53 | | | |
| Iowa State | Iowa State | 76 | Iowa State | Iowa State | 53 | | | |
| Wichita State | Wichita State | 65 | | | | | | |
| Fase previa | Fase previa | Fase previa | Primera ronda | Primera ronda | Primera ronda | Segunda ronda | Segunda ronda | Segunda ronda | Cuartos de final | Cuartos de final | Cuartos de final |
| Siena | Siena | 74 | | | | | | |
| Villanova | Villanova | 59 | | | | | | |
| Villanova | Villanova | 59 | Siena | Siena | 68 | | | |
| | | | Western Michigan | Western Michigan | 62 | | | |
| Western Michigan | Western Michigan | 63 | Western Michigan | Western Michigan | 62 | | | |
| UIC | UIC | 62 | | | | | | |
| UIC | UIC | 62 | | | | Siena | Siena | 71 |
| | | | | | | UAB | UAB | 80 |
| | | | UAB | UAB | 82 | | | |
| | | | Louisiana-Lafayette | Louisiana-Lafayette | 80 | | | |
| | | | | | | | | | UAB | UAB | 71 |
| | | | | | | | | | St. John's | St. John's | 79 |
| | | | St. John's | St. John's | 73 | | | |
| | | | Boston University | Boston University | 57 | | | |
| | | | | | | St. John's | St. John's | 73 |
| | | | | | | Virginia | Virginia | 63 |
| | | | Virginia | Virginia | 89 | | | |
| | | | Brown | Brown | 73 | | | |
| Fase previa | Fase previa | Fase previa | Primera ronda | Primera ronda | Primera ronda | Segunda ronda | Segunda ronda | Segunda ronda | | Cuartos de final | Cuartos de final | Cuartos de final |
| | | | North Carolina | North Carolina | 83 | | | |
| | | | DePaul | DePaul | 72 | | | |
| | | | | | | North Carolina | North Carolina | 90 |
| | | | | | | Wyoming | Wyoming | 74 |
| | | | Wyoming | Wyoming | 78 | | | |
| | | | Eastern Washington | Eastern Washington | 71 | | | |
| | | | | | | | | | | North Carolina | North Carolina | 74 |
| | | | | | | | | | | Georgetown | Georgetown | 79 |
| | | | Georgetown | Georgetown | 70 | | | |
| | | | Tennessee | Tennessee | 60 | | | |
| | | | | | | Georgetown | Georgetown | 67 |
| | | | | | | Providence | Providence | 58 |
| Providence | Providence | 67 | | | | | | | Providence | Providence | 58 | |
| Richmond | Richmond | 49 | | | | | | |
| Richmond | Richmond | 49 | Providence | Providence | 69 | | | |
| | | | College of Charleston | College of Charleston | 64 | | | |
| College of Charleston | College of Charleston | 72 | College of Charleston | College of Charleston | 64 | | | |
| Kent State | Kent State | 66 | | | | | | |
| Fase previa | Fase previa | Fase previa | Primera ronda | Primera ronda | Primera ronda | Segunda ronda | Segunda ronda | Segunda ronda | Cuartos de final | Cuartos de final | Cuartos de final |
| Temple | Temple | 68 | | | | | | |
| Drexel | Drexel | 59 | | | | | | |
| Drexel | Drexel | 59 | Temple | Temple | 75 | | | |
| | | | Boston College | Boston College | 62 | | | |
| Boston College | Boston College | 90 | Boston College | Boston College | 62 | | | |
| Fairfield | Fairfield | 78 | | | | | | |
| Fairfield | Fairfield | 78 | | | | Temple | Temple | 61 |
| | | | | | | Rhode Island | Rhode Island | 53 |
| | | | Rhode Island | Rhode Island | 61 | | | |
| | | | Seton Hall | Seton Hall | 60 | | | |
| | | | | | | | | | Temple | Temple | 58 |
| | | | | | | | | | Minnesota | Minnesota | 63 |
| | | | Minnesota | Minnesota | 62 | | | |
| | | | Saint Louis | Saint Louis | 52 | | | |
| | | | | | | Minnesota | Minnesota | 84 |
| | | | | | | Hawaii | Hawaii | 70 |
| | | | Hawaii | Hawaii | 85 | | | |
| | | | UNLV | UNLV | 68 | | | |

### Semifinales y Final

| Semifinales | Semifinales | Final | Final |
| Georgetown | 88 |
| Minnesota | 74 |
| Minnesota | 74 | Georgetown | 67 |
| | | St. John's | 70 |
| Texas Tech | 63 | St. John's | 70 |
| St. John's | 64 |
| Third place game | Third place game | Third place game |
| | Minnesota | 61 |
| | Texas Tech | 71 |