The 2018 Kaspersky Riga Masters was a professional ranking snooker tournament that took place between 27 and 29 July 2018 at the Arena Riga in Riga, Latvia. It was the first ranking event of the 2018/2019 season. Ryan Day was the defending champion, however he lost 3–4 to Ali Carter in the last 64. Liang Wenbo made the highest break of the tournament with 140 in the second round against Neil Robertson. Liang potted all blacks with reds during the break but this was not a maximum break as he potted 13th and 14th reds in the same shot.