He played 6 matches in the Champions League in which he scored one goal, a penalty kick in a 3–1 loss to AS Magenta from New Caledonia.

[3] In January 2018, Kalo joined Vanuatuan club Nalkutan to play for them in the 2018 OFC Champions League.

On January 4, 2019, it was announced that Bong Kalo would join Fijian club, Lautoka to play in the 2019 OFC Champions League.

1–1 draws against Papua New Guinea and Fiji, a 2–1 loss against New Zealand, and two 3–1 victories against the Cook Islands and New Caledonia were not enough to top the group and to qualify for the 2013 FIFA U-17 World Cup.

In 2014 Kalo was called up to join the Vanuatu national under-20 football team in the 2014 OFC U-20 Championship.

He also played in the other three matches: a 1–0 win over New Caledonia, a 0–0 draw against local rivals the Solomon Islands and a 4–2 victory over Papua New Guinea.

Kalo scored one goal during this tournament, a stunning volley in a 3–1 win during the group stage against Papua New Guinea.

Vanuatu advanced to the semi-final and thanks to a late goal scored by Frederick Massing, assisted by Kalo, they won 2–1 against the Solomon Islands.

Kalo made his debut[7] for the Vanuatu national football team on November 7, 2015, in a 1–1 draw against Fiji.