A back who played in any position from first five-eighth to wing, Algar represented Wellington at a provincial level, and was a member of the New Zealand national side, the All Blacks, in 1920 and 1921.
[2] On 13 November 1915 Algar departed New Zealand with the 8th Reinforcements heading for Egypt, arriving there on 18 December 1915.
While recovering at Port Said rest camp he was declared no longer fit for active service, invalidating him home to New Zealand.
[4] After returning home, Algar worked with his brother running a building company in Kilbirnie.
[2] Algar made his debut for New Zealand on 10 July 1920 in a pre-tour match against Auckland at Eden Park, which was drawn 11–11.
[9] He also captained the All Blacks for his first and only time in their next game against a combined Manawatu-Horowhenua-Wanganui team, which New Zealand won 39–0.