Steve Smith kisses the badge on his helmet after scoring a century in his Test captaincy debut. Photo by Bradley Kanaris. Source: Getty Images

He is the youngest Australian batsman to achieve the feat.

Only Billy Murdoch (1880), Harry Trott (1896), Monty Noble (1903), Clem Hill (1910), Warwick Armstrong (1920), Lindsay Hassett (1949), Greg Chappell (1975) and Graham Yallop (1978) had scored a century on captaincy debut for Australia prior to Smith.

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Smith’s innings was the highest by an Australian captain on debut since Armstrong’s 158 in 1920. It is equal with Noble’s effort in 1903 as the equal-fifth highest score by an Australian captain on debut.

Yallop was the last Australian batsman to reach triple figures in his first Test as skipper, 36 years ago. He was immediately preceded by Greg Chappell, who remains the only Aussie captain to score a ton in both innings of his first Test as captain.

Smith was named Australia’s 45th Test captain on Monday in place of the injured Michael Clarke. He is Australia’s third youngest captain after Ian Craig (1957) and Kim Hughes (1979).

Steve Smith of Australia celebrates scoring a century during day three of the second Test. Source: Getty Images

Smith has scored 912 runs at 82.90 in his eighth Test this year, including four centuries and four 50s.

That contrasts favourably with his previous 16 Tests, during which he scored 970 runs at 34.64. He managed just two centuries in that time.

Smith’s career average had sky rocketed to 48.25 after the first session on Friday.

Greg Chappell scored two centuries in his first Test as captain. Source: News Limited

Here is the full list of scores from Australians in their Test captaincy debuts:

1 & 3 — Dave Gregory vs. England, Melbourne, 1877

0 & 153* — Billy Murdoch vs. England, The Oval, 1880

63 & 16 — Tom Horan vs. England, Melbourne, 1885

2 & 21 — Hugh Massie vs. England, Sydney, 1885

11* & DNB — Jack Blackham vs. England, Sydney, 1885

21 & 47 — Tup Scott vs. England, Manchester, 1886

14 & 0 — Percy McDonnell vs. England, Sydney, 1887

32 & 43 — George Giffen vs. England, Melbourne, 1894

0 & 143 — Harry Trott vs. England, Lord’s, 1896

47 & 14 — Joe Darling vs. England, Nottingham, 1899

6 & DNB — Hugh Trumble vs. England, Sydney, 1902

133 & 22 — Monty Noble vs. England, Sydney, 1903

191 — Clem Hill vs. South Africa, Sydney, 1910

37 — Syd Gregory vs. South Africa, Manchester, 1912

12 & 158 — Warwick Armstrong vs. England, Sydney, 1920

31 & 47 — Herbie Collins vs. South Africa, Durban, 1921

0 — Warren Bardsley vs. England, Lord’s, 1926

33 & 1 — Jack Ryder vs. England, Brisbane, 1928

2 & 4 — Bill Woodfull vs. England, Nottingham, 1930

2 & DNB — Victor Richardson vs. South Africa, Durban, 1935

38 & 0 — Don Bradman vs. England, Brisbane, 1936

67 — Bill Brown vs. New Zealand, Wellington, 1946

112 — Lindsay Hassett vs. South Africa, Johannesburg, 1949

1 & 45 — Arthur Morris vs. West Indies, Adelaide, 1951

24* & 33* — Ian Johnson vs. England, Brisbane, 1954

48* — Ray Lindwall vs. India, Mumbai, 1956

14 & 17 — Ian Craig vs. South Africa, Johannesburg, 1957

16 & DNB — Richie Benaud vs. England, Brisbane, 1958

27 & 4 — Neil Harvey vs. England, Lord’s, 1961

0 & 55* — Bob Simpson vs. South Africa, Melbourne, 1964

16 — Brian Booth vs. England, Brisbane, 1965

64 & 45 — Bill Lawry vs. India, Brisbane, 1968

10 & 4 — Barry Jarman vs. England, Lord’s, 1968

25 & 6 — Ian Chappell vs. England, Sydney, 1971

123 & 109* — Greg Chappell vs. West Indies, Brisbane, 1975

7 & 102 — Graham Yallop vs. England, Brisbane, 1978

9 & DNB — Kim Hughes vs. Pakistan, Perth, 1979

21 & 18 — Allan Border vs. West Indies, Adelaide, 1984

0 & 0 — Mark Taylor vs. Pakistan, Karachi, 1994

14 & 0 — Steve Waugh vs. West Indies, Port of Spain, 1999

9 & 10* — Adam Gilchrist vs. West Indies, Adelaide, 2000

21 & 28 — Ricky Ponting vs. Sri Lanka, Galle, 2004

4 & 41 — Michael Clarke vs. England, Sydney, 2011

17 & 5 — Shane Watson vs. India, Delhi, 2013

133 – Steven Smith vs. India, Brisbane, 2014