Father: Mark Duffy, Mother: Wendy Affleck, Brother: Ryan Duffy, Wife: Natasha Duffy
| Bowling | |||||||||||||
| Format | Mat | Inns | Balls | Runs | Wkts | BBI | BBM | Ave | Econ | SR | 4w | 5w | 10w |
| Tests | 4 | 8 | 1030 | 407 | 25 | 5/34 | 9/128 | 16.28 | 2.37 | 41.2 | 1 | 3 | 0 |
| ODIs | 19 | 19 | 862 | 849 | 35 | 3/35 | 3/35 | 24.25 | 5.90 | 24.6 | 0 | 0 | 0 |
| T20Is | 48 | 46 | 932 | 1256 | 62 | 4/14 | 4/14 | 20.25 | 8.08 | 15.0 | 5 | 0 | 0 |
| FC | 112 | 191 | 20753 | 10835 | 343 | 7/89 | 9/106 | 31.58 | 3.13 | 60.5 | 13 | 16 | 0 |
| List A | 104 | 101 | 4920 | 4466 | 178 | 6/35 | 6/35 | 25.08 | 5.44 | 27.6 | 4 | 5 | 0 |
| T20s | 171 | 165 | 3422 | 4889 | 195 | 5/18 | 5/18 | 25.07 | 8.57 | 17.5 | 7 | 2 | 0 |
| Batting & Fielding | |||||||||||||
| Format | Mat | Inns | NO | Runs | HS | Ave | BF | SR | 100s | 50s | 4s | 6s | Ct |
| Tests | 4 | 5 | 1 | 78 | 36 | 19.50 | 104 | 75.00 | 0 | 0 | 14 | 0 | 2 |
| ODIs | 19 | 7 | 6 | 12 | 4* | 12.00 | 20 | 60.00 | 0 | 0 | 2 | 0 | 4 |
| T20Is | 48 | 12 | 7 | 40 | 9* | 8.00 | 41 | 97.56 | 0 | 0 | 3 | 0 | 14 |
| FC | 112 | 159 | 43 | 1526 | 71 | 13.15 | 2926 | 52.15 | 0 | 3 | 212 | 15 | 44 |
| List A | 104 | 55 | 24 | 374 | 39 | 12.06 | 408 | 91.66 | 0 | 0 | 35 | 11 | 35 |
| T20s | 171 | 60 | 30 | 237 | 24 | 7.90 | 184 | 128.80 | 0 | 0 | 14 | 11 | 50 |
