In total Barlow would reach three doubles finals at the Wimbledon Championships during his career (1892, 1893, 1894). Renshaw survived a total of six match points in the All Comers Final against Barlow at 2–5 and 6–7 in the fourth set. Doubles (1 title, 2 runners-up).
In 1892 he won his first and only Wimbledon title when together with Ernest Lewis they defeated another famous team of tennis brothers, Herbert Baddeley and Wilfred Baddeley, in four sets. At the 1889 Wimbledon Championships, William Renshaw defeated Barlow 3–6, 5–7, 8–6, 10–8, 8–6 in the All Comers Final, and then defeated his brother and reigning champion Ernest Renshaw 6–4, 6–1, 3–6, 6–0 in the Challenge Round to win the 1889 Wimbledon Championships. He reached the All Comers Final again the following year, losing to Willoughby Hamilton in the 1890 Wimbledon Championships, who then defeated reigning champion Renshaw in the Challenge Round. Harry Barlow won Kent Championships four times and Queen"s Club Championships twice.
