[6] In September, they reached the Vietnam Open semifinals, but lost to fellow Indonesian pair Dejan Ferdinansyah and Gloria Emanuelle Widjaja.

[17] In the individual mixed doubles event, Sumanti who carried the second seed status with his partner Julimarbela, was eliminated in the first round from Thai pair Pakkapon Teeraratsakul and Phataimas Muenwong.

[18] Sumanti and Julimarbela continued with unsatisfactory results, where they lost in the first rounds of second Asian Tour in the tournament Malaysia Masters,[19] and Thailand Open.

[20] In June, Sumanti and Julimarbela competed at the home tournament, Indonesia Open, but lost in the first round from 3rd seed Thai player Dechapol Puavaranukroh and Sapsiree Taerattanachai.

[21] In September, Sumanti and Julimarbela as the 1st seed lost at the first round of Indonesia Masters Super 100 I from Thai pair Pakkapon Teeraratsakul and Phataimas Muenwong.