# 1994 Campionati Internazionali di San Marino – Singles

Thomas Muster was the defending champion but chose to compete at Cincinnati in the same week, losing in the first round to Mark Woodforde.
Carlos Costa won the title by defeating Oliver Gross 6–1, 6–3 in the final.

## Seeds

* Alberto Berasategui (quarterfinals)
* Carlos Costa (champion)
* Magnus Larsson (second round)
* Javier Sánchez (second round)
* Renzo Furlan (quarterfinals)
* Richard Fromberg (second round)
* Jordi Arrese (second round)
* Marcelo Filippini (semifinals)

## Draw
### Key

* Q = Qualifier
* WC = Wild card
* LL = Lucky loser
* Alt = Alternate
* SE = Special exempt
* PR = Protected ranking
* ITF = ITF entry
* JE = Junior exempt
* w/o = Walkover
* r = Retired
* d = Defaulted
* SR = Special ranking

### Finals

| Semifinals | Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final |
| 8 | Marcelo Filippini | 4 | 7 | 4 | | | | |
| | Oliver Gross | 6 | 5 | 6 | | | | |
| | Oliver Gross | 6 | 5 | 6 | | Oliver Gross | 1 | 3 |
| | | | | | 2/WC | Carlos Costa | 6 | 6 |
| Q | Christophe Van Garsse | 6$^4$ | 2 | | 2/WC | Carlos Costa | 6 | 6 |
| 2/WC | Carlos Costa | 7$^7$ | 6 | | | | | |

### Top half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 1 | A Berasategui | 3 | 6 | 6 | | | | | | | | | | | | | | |
| | C Ruud | 6 | 3 | 1 | 1 | A Berasategui | 6 | 7$^9$ | | | | | | | | | | |
| | G Solvès | 7$^7$ | 6 | | | G Solvès | 4 | 6$^7$ | | | | | | | | | | |
| | P Canè | 6$^3$ | 2 | | | | | | | 1 | A Berasategui | 6$^4$ | 1 | | | | | |
| | A Costa | 3 | 2 | | | | | | | 8 | M Filippini | 7$^7$ | 6 | | | | | |
| | F Dewulf | 6 | 6 | | | F Dewulf | 6$^2$ | 5 | | | | | | | | | | |
| | H Gumy | 4 | 4 | | 8 | M Filippini | 7$^7$ | 7 | | | | | | | | | | |
| 8 | M Filippini | 6 | 6 | | | | | | | | | | | 8 | M Filippini | 4 | 7 | 4 |
| 4/WC | J Sánchez | 6 | 6 | | | | | | | | | | | | O Gross | 6 | 5 | 6 |
| | X Daufresne | 3 | 4 | | 4/WC | J Sánchez | 4 | 6$^4$ | | | | | | | | | | |
| | O Gross | 6 | 6 | | | O Gross | 6 | 7$^7$ | | | | | | | | | | |
| Q | G Puentes | 0 | 1 | | | | | | | | O Gross | 6 | 6 | | | | | |
| | L Jönsson | 6 | 6 | | | | | | | | L Jönsson | 3 | 1 | | | | | |
| | D Nargiso | 3 | 3 | | | L Jönsson | 6 | 2 | 7 | | | | | | | | | |
| | P Arnold | 6$^1$ | 3 | | 6 | R Fromberg | 4 | 6 | 5 | | | | | | | | | |
| 6 | R Fromberg | 7$^7$ | 6 | | | | | | | | | | | | | | | |

### Bottom half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 5 | R Furlan | 6 | 3 | 7$^7$ | | | | | | | | | | | | | |
| | S Youl | 4 | 6 | 6$^5$ | 5 | R Furlan | 6 | 6 | | | | | | | | | |
| WC | O Camporese | 6 | 6 | | WC | O Camporese | 2 | 2 | | | | | | | | | |
| | K Kučera | 4 | 4 | | | | | | | 5 | R Furlan | 4 | 4 | | | | |
| Q | C Van Garsse | 6 | 6 | | | | | | | Q | C Van Garsse | 6 | 6 | | | | |
| Q | A Voinea | 2 | 2 | | Q | C Van Garsse | 5 | 7$^8$ | 6 | | | | | | | | |
| | F Sánchez | 0 | 3 | | 3 | M Larsson | 7 | 6$^6$ | 4 | | | | | | | | |
| 3 | M Larsson | 6 | 6 | | | | | | | | | | | Q | C Van Garsse | 6$^4$ | 2 |
| 7 | J Arrese | 6 | 4 | 6 | | | | | | | | | | 2/WC | C Costa | 7$^7$ | 6 |
| | B Larkham | 1 | 6 | 3 | 7 | J Arrese | 4 | 6$^6$ | | | | | | | | | |
| | D Poliakov | 2 | 3 | | Q | Á López Morón | 6 | 7$^8$ | | | | | | | | | |
| Q | Á López Morón | 6 | 6 | | | | | | | Q | Á López Morón | 2 | 6$^4$ | | | | |
| | D Adams | 2 | 6 | 4 | | | | | | 2/WC | C Costa | 6 | 7$^7$ | | | | |
| | F Davín | 6 | 3 | 6 | | F Davín | 1 | 3 | | | | | | | | | |
| | K Alami | 3 | 5 | | 2/WC | C Costa | 6 | 6 | | | | | | | | | |
| 2/WC | C Costa | 6 | 7 | | | | | | | | | | | | | | |