In all, Broad played eight first-class cricket matches.
Nelson
Broad made his first-class debut for Nelson, against Wellington at the Basin Reserve, in the 1888–89 season. Batting at number four in the first innings and number nine in the second, he made an inauspicious start to his first-class career, making a pair. He bowled seven overs for 26 runs, and did not take a wicket. Nelson lost the match by an innings and 190 runs. His second and last first-class appearance for Nelson, also against Wellington, was in the 1891–92 season at Trafalgar Park. Opening the batting in the first innings, Broad made one run, and in the second innings, batting at three, he scored 12 runs. He did not bowl in Wellington's first innings, but in their second he took two wickets for 13 runs off 3.2 overs. Wellington won the match by one wicket. The wicketkeeper for Nelson in the match was Broad's younger brother, Edward. In the 1894–95 season, Broad played for Nelson against the touring Fijian team. Opening the batting in each innings, he scored 17 and 80 runs, respectively. He took one wicket in each innings, bowling one over in the first and four in the second. Despite his efforts, Fiji won the two-day match by three wickets. Broad made a final appearance for Nelson, playing against Lord Hawke's XI at Trafalgar Park in January 1903. He made 4 and 7 not out in Nelson's two turns at bat. The tourists won the match by an innings and 79 runs, despite the home team playing with 18 men. For several years, Broad was the captain of the Nelson College cricket club.
Otago
Broad made six first-class appearances for Otago between 1898 and 1900: one in each of the 1897–98 and 1898–99 seasons; and four in the 1899–1900 season. Against Canterbury at Lancaster Park in 1897–98, he scored 5 and 7 runs, respectively, in Otago's two innings, and bowled 1.3 overs without success in Canterbury's second innings. The following season against Canterbury at Carisbrook, Broad made 12 and 17 runs batting at four, and was not called upon to bowl. He contributed in the field, taking two catches in Canterbury's first innings and one in their second. Later in the 1898–99 season, Broad played for Otago against the New Zealand team selected to tour Australia. In that two-day match at Carisbrook, with 13 players per side, he scored 11 runs in the first innings, and did not bat in the second. In his final first-class season for Otago, 1899–1900, Broad scored a total of 98 runs, with a high-score of 60 batting at number seven against Hawke's Bay, at an average of 14.00. During the season, he bowled just 12 deliveries in first-class games, without taking a wicket. During his time in Dunedin from 1897 to 1901, Broad belonged to the Carisbrook cricket club.
Tennis
A member of the Otago tennis club, Broad was the Otago provincial tennis champion in 1901.
Teaching career
In 1893 Broad was appointed junior master at Nelson College, with a salary of £50 per year plus board and residence. At Easter 1897 he took up a post as an assistant master at Otago Boys' High School. He returned to Nelson College as third master in 1901, and remained there for the rest of his teaching career. Following the retirement of Harry Lewis Fowler as headmaster of Nelson College after a 17-year tenure, Broad was appointed as his replacement, and was the first old boy of the school to be given the role. Broad was headmaster of Nelson College for 11 years. In 1927 he visited the United Kingdom with his wife, and saw how secondary schools were organised there. When he returned to Nelson, he put into practice some of what he had observed, particularly the house system, which still continues. The latter years of Broad's tenure were dominated by the effects of the damaging 1929 Murchison earthquake. Three new boarding houses were planned: the new Rutherford and Barnicoat Houses were completed in 1931, and Fell House was temporarily located in nearby Fairfield House. Broad gained extra responsibilities in 1932 as the daytime operations of the Nelson Technical School were merged into Nelson College. He retired as headmaster at the end of 1933, having been at the school for all but five years since 1884. Broad also served on the Nelson College Old Boys' Association. He was secretary from 1906 to 1912 and president between 1921 and 1928. He was involved in the purchase in 1927 of of land between Vanguard and Tipahi Streets for additional college playing fields, that were later named "Broad's" in his honour.
Later life
Following his retirement, Broad continued to live in Nelson, and he died there on 7 September 1959. His wife, Annie Maria Broad, died on 26 April 1965.