Stadium: Court 4 Round: 25
| ITF Women Savitaipale | 2017/08/03 14:35 | Argyelan, Csilla v Lapustina, Irina | 3-6,5-7 |
| ITF Women Tampere | 2018/07/24 09:30 | Lapustina, Irina v Iansitova, Svetlana | 0-6,1-6 |
| ITF Women Astana Qual | 2018/07/14 04:00 | Frolova, Anastasia v Lapustina, Irina | 6-2,6-2 |
| ITF Women Torun Qual | 2018/06/25 12:30 | Pirazhenka, Sviatlana v Lapustina, Irina | 6-0,6-4 |
| ITF Women Torun Qual | 2018/06/25 08:25 | Schmitz, Michelle v Lapustina, Irina | 1-6,2-6 |
| Hodmezovasarhely, Q. Simples W-WITF-HUN-02A | 2018/06/09 11:30 | Lapustina, Irina v Draginja Vukovic | 2-6,0-6 |
| Antalya, Singles Qualifying W-WITF-TUR-08A | 2018/06/06 07:30 | Lapustina, Irina v Lopatetska, Daria | 2-6,1-6 |
| Antalya, Singles Qualifying W-WITF-TUR-08A | 2018/05/29 07:30 | Lapustina, Irina v Oliwia Szymczuch | 0-6,0-6 |
| Antalya, Qualifications Simples W-WITF-TUR-46A | 2018/05/21 07:30 | Lapustina, Irina v Drozd Pereira, Erika | 3-6,4-6 |
| ITF Women Prague Qual | 2018/07/22 10:30 | Argyelan, Csilla v Vankova, Katerina | 1-6,0-6 |
| ITF Women Olomouc Qual | 2018/07/15 10:25 | Argyelan, Csilla v Konig, Pia | 1-6,2-6 |
| ITF Women Olomouc Qual | 2018/07/14 12:30 | Argyelan, Csilla v Kareisova, Ludmila | 6-3,6-3 |
| ITF Women Budapest Qual | 2018/07/07 09:15 | Dascalu, Nicoleta-Catalina v Argyelan, Csilla | 6-1,6-1 |
| ITF Women Jablonec Nad Nisou Qual | 2018/06/24 08:00 | Argyelan, Csilla v Melounova, Petra | 5-7,2-6 |
| Hodmezovasarhely, Q. Simples W-WITF-HUN-02A | 2018/06/10 09:45 | Nadia Podoroska v Argyelan, Csilla | 6-3,6-2 |
| Hodmezovasarhely, Q. Simples W-WITF-HUN-02A | 2018/06/09 11:30 | Argyelan, Csilla v Reka Pecsi | 6-0,6-2 |
| ITF Women Banja Luka | 2018/06/07 08:00 | Argyelan, Csilla v Jablonovska, Jana | 6-7,2-6 |