# 2021 Amstelveen Women's Open – Singles

This was the first edition of the tournament.
Quirine Lemoine won the title, defeating Yana Morderger in the final, 7–5, 6–4.

## Seeds

* Wang Xiyu (second round)
* Barbara Haas (quarterfinals)
* Maryna Zanevska (second round)
* Julia Grabher (first round)
* Tereza Mrdeža (second round)
* Martina Di Giuseppe (first round)
* Ekaterine Gorgodze (first round)
* Despina Papamichail (quarterfinals)

## 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 |
| SE | Quirine Lemoine | 6 | 4 | 6 | | | | |
| | Alexandra Cadanțu | 1 | 6 | 3 | | | | |
| | Alexandra Cadanțu | 1 | 6 | 3 | SE | Quirine Lemoine | 7 | 6 |
| | | | | | Q | Yana Morderger | 5 | 4 |
| Q | Yana Morderger | 4 | 6 | 6 | Q | Yana Morderger | 5 | 4 |
| Q | Cristiana Ferrando | 6 | 1 | 4 | | | | |

### 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 | Xiy Wang | 6 | 6 | | | | | | | | | | | | | | | | |
| | S Waltert | 2 | 1 | | 1 | Xiy Wang | 6$^1$ | 3 | | | | | | | | | | | |
| SE | Q Lemoine | 5 | 6 | 6 | SE | Q Lemoine | 7$^7$ | 6 | | | | | | | | | | | |
| | R Hogenkamp | 7 | 2 | 0 | | | | | | SE | Q Lemoine | 6 | 7$^7$ | | | | | | |
| SE | İ Öz | 2 | 7 | 3 | | | | | | WC | S Lamens | 3 | 6$^5$ | | | | | | |
| | V Grammatikopoulou | 6 | 5 | 6 | | V Grammatikopoulou | 6 | 2 | 1 | | | | | | | | | | |
| WC | S Lamens | 7 | 6 | | WC | S Lamens | 4 | 6 | 6 | | | | | | | | | | |
| 7 | E Gorgodze | 5 | 4 | | | | | | | | | | | | SE | Q Lemoine | 6 | 4 | 6 |
| 3 | M Zanevska | 7 | 6 | | | | | | | | | | | | | A Cadanțu | 1 | 6 | 3 |
| Q | J Garland | 5 | 1 | | 3 | M Zanevska | 6 | 1 | 5 | | | | | | | | | | |
| WC | L Stevens | 3 | 4 | | | A Cadanțu | 4 | 6 | 7 | | | | | | | | | | |
| | A Cadanțu | 6 | 6 | | | | | | | | A Cadanțu | 3 | 6 | 6 | | | | | |
| | S Mendez | 2 | 4 | | | | | | | 8 | D Papamichail | 6 | 3 | 4 | | | | | |
| Q | A Prisăcariu | 6 | 6 | | Q | A Prisăcariu | 4 | 4 | | | | | | | | | | | |
| | C Paquet | 6 | 4 | 3 | 8 | D Papamichail | 6 | 6 | | | | | | | | | | | |
| 8 | D Papamichail | 2 | 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 |
| 5 | T Mrdeža | 6 | 6 | | | | | | | | | | | | | | | | |
| WC | E Vedder | 3 | 1 | | 5 | T Mrdeža | 1 | 6 | 5 | | | | | | | | | | |
| WC | N Redelijk | 3 | 3 | | Q | Y Morderger | 6 | 4 | 7 | | | | | | | | | | |
| Q | Y Morderger | 6 | 6 | | | | | | | Q | Y Morderger | 6 | 7 | | | | | | |
| JE | E Navarro | 6 | 6 | | | | | | | JE | E Navarro | 3 | 5 | | | | | | |
| | I Burillo Escorihuela | 4 | 1 | | JE | E Navarro | 6 | 4 | 7 | | | | | | | | | | |
| | A Parks | 6 | 2 | 6 | | A Parks | 3 | 6 | 5 | | | | | | | | | | |
| 4 | J Grabher | 2 | 6 | 0 | | | | | | | | | | | Q | Y Morderger | 4 | 6 | 6 |
| 6 | M Di Giuseppe | 3 | 6 | 3 | | | | | | | | | | | Q | C Ferrando | 6 | 1 | 4 |
| Q | IL Roșca | 6 | 2 | 6 | Q | IL Roșca | 4 | 3 | | | | | | | | | | | |
| Q | C Ferrando | 7$^7$ | 6 | | Q | C Ferrando | 6 | 6 | | | | | | | | | | | |
| Q | V Meliss | 6$^2$ | 2 | | | | | | | Q | C Ferrando | 6 | 5 | 6 | | | | | |
| Q | J Fourlis | 4 | 4 | | | | | | | 2 | B Haas | 3 | 7 | 4 | | | | | |
| | L Bošković | 6 | 6 | | | L Bošković | 5 | 3 | | | | | | | | | | | |
| Q | T Morderger | 6 | 5 | 3 | 2 | B Haas | 7 | 6 | | | | | | | | | | | |
| 2 | B Haas | 0 | 7 | 6 | | | | | | | | | | | | | | | |