 Arsenal had been ailing in the First Division; they had only scored twice in their first six matches of the 1910–11 season and were languishing in seventeenth place.Chalmers made his debut against Bradford City on 8 October 1910 and soon had an immediate impact on Arsenal's season, scoring fifteen league goals (and one in the FA Cup, making him the club's top scorer with sixteen), as Arsenal finished a comfortable tenth.Chalmers was a first-team starter the next season, but lost his place to Alf Common, who had been moved from inside-forward to centre-forward.