| May 17, 2026 | Pieter | 0–1 | Acevedo Ramirez | Round 9: Pieter, Liana - Acevedo Ramirez, Lizeth Dahiana | Queen's Pawn Game: Stonewall Attack | |
| May 12, 2026 | Rivera Gutierrez | 1–0 | Pieter | Round 2: Rivera Gutierrez, Geannina Isabela - Pieter, Liana | Queen's Pawn Game: Symmetrical Variation | |
| May 12, 2026 | Pieter | ½–½ | Macedo Salcedo | Round 1: Pieter, Liana - Macedo Salcedo, Sofia | Rubinstein Opening: Semi-Slav Defense | |
| Apr 25, 2026 | Castillo Beitia | 1–0 | Pieter | JSJ FEMENINO BLITZ | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| Apr 25, 2026 | Pieter | 0–1 | Reyes Mayorca | JSJ FEMENINO BLITZ | Indian Defense: Spielmann-Indian | |
| Apr 25, 2026 | Adam | 1–0 | Pieter | JSJ FEMENINO BLITZ | Caro-Kann Defense: Advance Variation, Short Variation | |
| Apr 25, 2026 | Pieter | 0–1 | Mendoza Gomez | JSJ FEMENINO BLITZ | East Indian Defense | |
| Apr 25, 2026 | Pieter | 0–1 | Toala Velez Dayra Jamileth | JSJ FEMENINO BLITZ | Queen's Pawn Game: London System | |
| Apr 25, 2026 | Ton-Chung | 1–0 | Pieter | JSJ FEMENINO BLITZ | Indian Defense: Accelerated London System | |
| Apr 24, 2026 | Pieter | ½–½ | Toala Velez Dayra Jamileth | JSJ FEMENINO RAPID | Queen's Pawn Game: Stonewall Attack | |
| Apr 24, 2026 | Reyes Mayorca | 1–0 | Pieter | JSJ FEMENINO RAPID | Caro-Kann Defense: Panov Attack | |
| Apr 23, 2026 | Mendoza Gomez | 1–0 | Pieter | JSJ FEMENINO RAPID | Queen's Gambit Declined | |
| Apr 23, 2026 | Pieter | 1–0 | Mayeregger Gonzalez | JSJ FEMENINO RAPID | Rubinstein Opening: Bogoljubow Defense | |
| Apr 23, 2026 | Castillo Beitia | 1–0 | Pieter | JSJ FEMENINO RAPID | Slav Defense | |
| Apr 23, 2026 | Pieter | 1–0 | Ton-Chung | JSJ FEMENINO RAPID | Englund Gambit: Main Line | |
| Apr 14, 2026 | Cabral | 0–1 | Pieter | JSJ FEMENINO BLITZ | Caro-Kann Defense: Exchange Variation, Rubinstein Variation | |
| Apr 14, 2026 | Pieter | 1–0 | Cabral | JSJ FEMENINO RAPID | Queen's Pawn Game | |
| Apr 7, 2026 | Pieter | 1–0 | Mayeregger Gonzalez | JSJ FEMENINO BLITZ | Queen's Pawn Game: Stonewall Attack | |
| Apr 7, 2026 | Adam | 1–0 | Pieter | JSJ FEMENINO RAPID | Caro-Kann Defense: Advance Variation, Short Variation | |
| Dec 15, 2025 | Laing | 0–1 | Pieter | Round 1: Laing, Raquel - Pieter, Liana | Indian Defense | |
| Dec 9, 2025 | Pieter | 1–0 | Gayle | Round 2: Pieter, Liana - Gayle, Kaia | Queen's Pawn Game | |
| Dec 9, 2025 | Pieter | 1–0 | Reifer-Belle | Round 4: Pieter, Liana - Reifer-Belle, Chanon | Queen's Pawn Game | |
| Dec 9, 2025 | Pieter | 1–0 | Pride | Round 6: Pieter, Liana - Pride, Chika | Queen's Pawn Game | |
| Dec 9, 2025 | Pieter | 0–1 | Joshi | Round 8: Pieter, Liana - Joshi, Aditi Narayan | Rubinstein Opening | |
| Dec 9, 2025 | Pieter | ½–½ | Tavhare Mashere | Round 9: Pieter, Liana - Tavhare Mashere, Tanvi | Indian Defense | |
| Dec 9, 2025 | Bobadilla | 0–1 | Pieter | Round 3: Bobadilla, Diana - Pieter, Liana | Caro-Kann Defense: Two Knights Attack, Mindeno Variation, Retreat Line | |
| Dec 9, 2025 | Majid | 0–1 | Pieter | Round 5: Majid, Zara - Pieter, Liana | Indian Defense | |
| Dec 9, 2025 | Castillo Henriquez | 0–1 | Pieter | Round 7: Castillo Henriquez, Crystal - Pieter, Liana | Torre Attack: Classical Defense | |
| Oct 10, 2025 | Maduro | 1–0 | Pieter | Round 1: Maduro, Sherman - Pieter, Liana | Indian Defense: Anti-Nimzo-Indian | |
| Sep 21, 2025 | Pieter | * | Wu | Curacao Chess Festival 2025 OPEN | ? | |
| Sep 21, 2025 | Pieter | * | Rico | Curacao Chess Festival 2025 OPEN | ? | |
| Sep 21, 2025 | Pieter | 0–1 | Cuellar | Curacao Chess Festival 2025 OPEN | Queen's Pawn Game: Symmetrical Variation | |
| Sep 21, 2025 | Wadhwani | 0–1 | Pieter | Curacao Chess Festival 2025 OPEN | ? | |
| Sep 21, 2025 | Bregita | 1–0 | Pieter | Curacao Chess Festival 2025 OPEN | Caro-Kann Defense: Exchange Variation | |
| Sep 22, 2024 | Pieter | ½–½ | El Harrak | 45th FIDE Women's Chess Olympiad | Queen's Pawn Game: Symmetrical Variation | |
| Sep 21, 2024 | Gontcharova | 0–1 | Pieter | 45th FIDE Women's Chess Olympiad | Rapport-Jobava System | |
| Sep 20, 2024 | Rawan Mansor | 1–0 | Pieter | 45th FIDE Women's Chess Olympiad | Queen's Pawn Game: Accelerated London System | |
| Sep 19, 2024 | Daniel | 0–1 | Pieter | 45th FIDE Women's Chess Olympiad | Caro-Kann Defense: Advance Variation, Short Variation | |
| Sep 18, 2024 | Hephzibah Awura-Ama Manubea Tandoh | ½–½ | Pieter | 45th FIDE Women's Chess Olympiad | Queen's Pawn Game: Colle System | |
| Sep 16, 2024 | Scatliffe | 0–1 | Pieter | 45th FIDE Women's Chess Olympiad | Caro-Kann Defense: Exchange Variation | |
| Sep 15, 2024 | Pieter | 0–1 | Prasad | 45th FIDE Women's Chess Olympiad | English Defense | |
| Sep 14, 2024 | Pieter | ½–½ | Saraci | 45th FIDE Women's Chess Olympiad | Queen's Pawn Game: Colle System | |
| Sep 13, 2024 | Pieter | 1–0 | Cinthia Daniela Angue Ndong | 45th FIDE Women's Chess Olympiad | Queen's Pawn Game: Chigorin Variation | |
| Sep 12, 2024 | Vega Jimenez | 1–0 | Pieter | 45th FIDE Women's Chess Olympiad | Caro-Kann Defense: Exchange Variation, Rubinstein Variation | |
| — | Pieter | 0–1 | Guevara Ruiz | Round 3: Pieter, Liana - Guevara Ruiz, Santiago Jose | Queen's Pawn Game: Colle System | |
| — | Pieter | 1–0 | Chaurra Ocampo | Round 2: Pieter, Liana - Chaurra Ocampo, Emmanuell | East Indian Defense | |
| — | Pieter | 1–0 | Amaya Bonilla | Round 5: Pieter, Liana - Amaya Bonilla, Matias Fernando | East Indian Defense | |
| — | Pieter | 0–1 | Wilson | Round 8: Pieter, Liana - Wilson, Hannah | Queen's Pawn Game: Colle System | |
| — | Ilamparthi A R | 1–0 | Pieter | Round 1: Ilamparthi A R - Pieter, Liana | Caro-Kann Defense | |
| — | Delgado Pena | 1–0 | Pieter | Round 4: Delgado Pena, Alvaro - Pieter, Liana | Caro-Kann Defense: Tartakower Variation | |
| — | Rubio Bascur | 1–0 | Pieter | Round 6: Rubio Bascur, Sebastian Alfonso - Pieter, Liana | Zukertort Opening: Kingside Fianchetto | |
| — | Orr | ½–½ | Pieter | Round 7: Orr, Michael E. - Pieter, Liana | English Opening: Anglo-Indian Defense, Queen's Indian Formation | |
| — | Arroyave Arboleda | 0–1 | Pieter | Round 9: Arroyave Arboleda, Shantal - Pieter, Liana | Caro-Kann Defense: Two Knights Attack, Mindeno Variation | |