# 2023 Open Sopra Steria de Lyon – Singles

Corentin Moutet was the defending champion but chose not to defend his title.
Felipe Meligeni Alves won the title after defeating Alexander Ritschard 6–4, 0–6, 7–6$^{(9–7)}$ in the final.

## Seeds

* Quentin Halys (first round)
* Pedro Martínez (first round)
* Facundo Díaz Acosta (first round, retired)
* Timofey Skatov (first round)
* Benoît Paire (quarterfinals)
* Kaichi Uchida (first round, retired)
* Geoffrey Blancaneaux (withdrew)
* Felipe Meligeni Alves (champion)

## 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 | Final |
| | Alejandro Moro Cañas | 7$^8$ | 6$^2$ | 4 | | | | | |
| 8 | Felipe Meligeni Alves | 6$^6$ | 7$^7$ | 6 | | | | | |
| 8 | Felipe Meligeni Alves | 6$^6$ | 7$^7$ | 6 | 8 | Felipe Meligeni Alves | 6 | 0 | 7$^9$ |
| | | | | | | Alexander Ritschard | 4 | 6 | 6$^7$ |
| | Alexander Ritschard | 6$^5$ | 6 | 6 | | Alexander Ritschard | 4 | 6 | 6$^7$ |
| WC | Gabriel Debru | 7$^7$ | 3 | 2 | | | | | |

### 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 | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 1 | Q Halys | 2 | 2 | | | | | | | | | | | | | | | | |
| | P Llamas Ruiz | 6 | 6 | | | P Llamas Ruiz | 7$^7$ | 7 | | | | | | | | | | | |
| | DN Mădăraș | 5 | 2 | | | M Geerts | 6$^2$ | 5 | | | | | | | | | | | |
| | M Geerts | 7 | 6 | | | | | | | | P Llamas Ruiz | 7$^7$ | 4 | 1 | | | | | |
| WC | U Blanchet | 4 | 4 | | | | | | | | A Moro Cañas | 6$^3$ | 6 | 6 | | | | | |
| LL | C Tabur | 6 | 6 | | LL | C Tabur | 2 | 3 | | | | | | | | | | | |
| | A Moro Cañas | 6 | 1 | | | A Moro Cañas | 6 | 6 | | | | | | | | | | | |
| 6 | K Uchida | 1 | 0$^r$ | | | | | | | | | | | | | A Moro Cañas | 7$^8$ | 6$^2$ | 4 |
| 3 | F Díaz Acosta | 6$^5$ | 0$^r$ | | | | | | | | | | | | 8 | F Meligeni Alves | 6$^6$ | 7$^7$ | 6 |
| Q | M Janvier | 7$^7$ | 0 | | Q | M Janvier | 3 | 4 | | | | | | | | | | | |
| | D Added | 4 | 0 | | Q | M Bourgue | 6 | 6 | | | | | | | | | | | |
| Q | M Bourgue | 6 | 6 | | | | | | | Q | M Bourgue | 6$^4$ | 7$^7$ | 3 | | | | | |
| | G Mager | 7 | 6 | | | | | | | 8 | F Meligeni Alves | 7$^7$ | 6$^5$ | 6 | | | | | |
| | M Navone | 5 | 1 | | | G Mager | 4 | 6 | 2 | | | | | | | | | | |
| | M Pucinelli de Almeida | 6 | 3 | 4 | 8 | F Meligeni Alves | 6 | 3 | 6 | | | | | | | | | | |
| 8 | F Meligeni Alves | 3 | 6 | 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 | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals |
| Q | T Paris | 6 | 2 | 3 | | | | | | | | | | | | | | | |
| Q | Jules Marie | 3 | 6 | 6 | Q | J Marie | 3 | 2 | | | | | | | | | | | |
| | H Mayot | 7$^7$ | 2 | 2 | | A Ritschard | 6 | 6 | | | | | | | | | | | |
| | A Ritschard | 6$^1$ | 6 | 6 | | | | | | | A Ritschard | 4 | 6 | 6 | | | | | |
| | S Caruso | 6 | 6 | | | | | | | | S Caruso | 6 | 3 | 4 | | | | | |
| | C-h Tseng | 2 | 0 | | | S Caruso | 3 | 6 | 7 | | | | | | | | | | |
| | T Atmane | 6 | 6 | | | T Atmane | 6 | 2 | 5 | | | | | | | | | | |
| 4 | T Skatov | 2 | 1 | | | | | | | | | | | | | A Ritschard | 6$^5$ | 6 | 6 |
| 5 | B Paire | 4 | 7$^7$ | 6 | | | | | | | | | | | WC | G Debru | 7$^7$ | 3 | 2 |
| Q | D Novak | 6 | 6$^2$ | 2 | 5 | B Paire | 3 | 7$^8$ | 6 | | | | | | | | | | |
| WC | L Pouille | 6$^3$ | 6 | 6 | WC | L Pouille | 6 | 6$^6$ | 2 | | | | | | | | | | |
| | N Hardt | 7$^7$ | 4 | 4 | | | | | | 5 | B Paire | 2 | 7$^{11}$ | 2 | | | | | |
| | I Gakhov | 6 | 7 | | | | | | | WC | G Debru | 6 | 6$^9$ | 6 | | | | | |
| Q | M Guinard | 4 | 5 | | | I Gakhov | 5 | 3 | | | | | | | | | | | |
| WC | G Debru | 6 | 5 | 6 | WC | G Debru | 7 | 6 | | | | | | | | | | | |
| 2 | P Martínez | 1 | 7 | 4 | | | | | | | | | | | | | | | |