Hughes thus became only the 14th Australian to score centuries in both innings of a Test. He provided 19th such instance for Australia.
The difference is because of the fact that four batsmen - Ricky Ponting, Greg Chappell, Allan Border and Matthew Hayden - did so more than once.
The following table lists all Australians scoring centuries in both innings of a Test:
| Batsman | Inns1 | Inns2 | Opponent | Venue | Season |
| W Bardsley | 136 | 130 | v England | The Oval | 1909 |
| AR Morris | 122 | 124* | v England | Adelaide | 1946-47 |
| DG Bradman | 132 | 127* | v India | Melbourne | 1947-48 |
| J Moroney | 118 | 101* | v South Africa | Johannesburg | 1949-50 |
| RB Simpson | 153 | 115 | v Pakistan | Karachi | 1964-65 |
| KD Walters | 242 | 103 | v West Indies | Sydney | 1968-69 |
| GS Chappell (2) | 247* | 133 | v New Zealand | Wellington | 1973-74 |
| 123 | 109* | v West Indies | Brisbane | 1975-76 | |
| IM Chappell | 145 | 121 | v New Zealand | Wellington | 1973-74 |
| AR Border (2) | 150* | 153 | v Pakistan | Lahore | 1979-80 |
| 140 | 114* | v New Zealand | Christchurch | 1985-86 | |
| DM Jones | 116 | 121* | v Pakistan | Adelaide | 1989-90 |
| SR Waugh | 108 | 116 | v England | Manchester | 1997 |
| ML Hayden (2) | 197 | 103 | v England | Brisbane | 2002-03 |
| 117 | 132 | v Sri Lanka | Cairns | 2004 | |
| RT Ponting (3) | 149 | 104* | v West Indies | Brisbane | 2005-06 |
| 120 | 143* | v South Africa | Sydney | 2005-06 | |
| 103 | 116 | v South Africa | Durban | 2005-06 | |
| PJ Hughes | 115 | 160 | v South Africa | Durban | 2008-09 |
More
| Age | Batsman | For | Vs | Venue | Season |
| 20 Yrs 98 Days | PJ Hughes (115 & 160) | Aus | SA | Durban | 2008-09 |
| 20 Yrs 271 Days | GA Headley (114 &112) | WI | Eng | Georgetown | 1929-30 |
| 21 Yrs 234 Days | GStA Sobers (125 & 109*) | WI | Pak | Georgetown | 1957-58 |
| 21 Yrs 282 Days | SM Gavaskar (124 & 220) | Ind | WI | Port-of-Spain | 1970-71 |
| 23 Yrs 44 Days | LG Rowe (214 & 100*) | WI | NZ | Kingston | 1971-72 |