# 2019 Thoreau Tennis Open – Singles

This was the first edition of the tournament.
Caroline Dolehide won the title, defeating Ann Li in the final, 6–3, 7–5.

## Seeds

* Christina McHale (second round)
* Danka Kovinić (first round)
* Zhu Lin (second round)
* Katarina Zavatska (second round)
* Ana Bogdan (quarterfinals)
* Anhelina Kalinina (second round)
* Varvara Flink (first round)
* Allie Kiick (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 |
| Q | Olga Govortsova | 6$^2$ | 4 | | | | | |
| WC | Caroline Dolehide | 7$^7$ | 6 | | | | | |
| WC | Caroline Dolehide | 7$^7$ | 6 | | WC | Caroline Dolehide | 6 | 7 |
| | | | | | | Ann Li | 3 | 5 |
| | Usue Maitane Arconada | 6 | 1 | 4 | | Ann Li | 3 | 5 |
| | Ann Li | 2 | 6 | 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 |
| 1 | C McHale | 6 | 6 | | | | | | | | | | | | | | |
| | J Glushko | 3 | 2 | | 1 | C McHale | 6 | 5 | 5 | | | | | | | | |
| Q | F Stollár | 4 | 4 | | Q | O Govortsova | 1 | 7 | 7 | | | | | | | | |
| Q | O Govortsova | 6 | 6 | | | | | | | Q | O Govortsova | 6 | 6 | | | | |
| Q | X You | 3 | 2 | | | | | | | 8 | A Kiick | 3 | 0 | | | | |
| Q | P Ormaechea | 6 | 6 | | Q | P Ormaechea | 2 | 2 | | | | | | | | | |
| | K Kučová | 1 | 4 | | 8 | A Kiick | 6 | 6 | | | | | | | | | |
| 8 | A Kiick | 6 | 6 | | | | | | | | | | | Q | O Govortsova | 6$^2$ | 4 |
| 3 | L Zhu | 6 | 6 | | | | | | | | | | | WC | C Dolehide | 7$^7$ | 6 |
| | M Trevisan | 1 | 4 | | 3 | L Zhu | 1 | 1 | | | | | | | | | |
| Q | N Stojanović | 1 | 6 | 6$^3$ | WC | C Dolehide | 6 | 6 | | | | | | | | | |
| WC | C Dolehide | 6 | 3 | 7$^7$ | | | | | | WC | C Dolehide | 6 | 6 | | | | |
| | B Schoofs | 3 | 5 | | | | | | | 5 | A Bogdan | 4 | 3 | | | | |
| | J Ponchet | 6 | 7 | | | J Ponchet | 1 | 3 | | | | | | | | | |
| Q | S Whittle | 0 | 6 | 4 | 5 | A Bogdan | 6 | 6 | | | | | | | | | |
| 5 | A Bogdan | 6 | 3 | 6 | | | | | | | | | | | | | |

### Bottom half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 6 | A Kalinina | 6 | 6 | | | | | | | | | | | | | |
| | N-l Han | 1 | 3 | | 6 | A Kalinina | 1 | 2 | | | | | | | | |
| | UM Arconada | 6 | 6 | | | UM Arconada | 6 | 6 | | | | | | | | |
| WC | B Collens | 0 | 0 | | | | | | | UM Arconada | 7 | 6 | | | | |
| | J Čepelová | 4 | 6 | 7 | | | | | | J Čepelová | 5 | 3 | | | | |
| | Y Wickmayer | 6 | 2 | 5 | | J Čepelová | 6 | 6 | | | | | | | | |
| WC | C Liu | 4 | 2 | | 4 | K Zavatska | 1 | 0 | | | | | | | | |
| 4 | K Zavatska | 6 | 6 | | | | | | | | | | UM Arconada | 6 | 1 | 4 |
| 7 | V Flink | 6 | 4 | 6$^{11}$ | | | | | | | | | A Li | 2 | 6 | 6 |
| | E-s Liang | 2 | 6 | 7$^{13}$ | | E-s Liang | 2 | 3 | | | | | | | | |
| | A Li | 6 | 6$^2$ | 7$^{10}$ | | A Li | 6 | 6 | | | | | | | | |
| WC | E Halbauer | 0 | 7$^7$ | 6$^8$ | | | | | | A Li | 6 | 6 | | | | |
| Q | S Chang | 6 | 6 | | | | | | Q | M Fręch | 3 | 2 | | | | |
| | J Larsson | 2 | 1 | | Q | S Chang | 6$^4$ | 5 | | | | | | | | |
| Q | M Fręch | 6 | 6 | | Q | M Fręch | 7$^7$ | 7 | | | | | | | | |
| 2 | D Kovinić | 2 | 3 | | | | | | | | | | | | | |