Twenty20 Bowling in Each Season by Michael Mason
| Season | | Balls | Mdns | Runs | Wkts | BB | Ave | 4wI | 5wI | SRate | Econ |
| 2005-06 | (New Zealand) | 24 | 0 | 26 | 0 | | | | | | 6.50 |
| 2006-07 | (New Zealand) | 18 | 0 | 19 | 1 | 1-19 | 19.00 | 0 | 0 | 18.00 | 6.33 |
| 2007-08 | (New Zealand) | 138 | 0 | 180 | 8 | 2-14 | 22.50 | 0 | 0 | 17.25 | 7.82 |
| 2007-08 | (South Africa) | 18 | 0 | 28 | 0 | | | | | | 9.33 |
| 2008 | (England) | 18 | 0 | 18 | 1 | 1-18 | 18.00 | 0 | 0 | 18.00 | 6.00 |
| 2008-09 | (New Zealand) | 183 | 0 | 226 | 10 | 4-23 | 22.60 | 1 | 0 | 18.30 | 7.40 |
| 2009-10 | (New Zealand) | 258 | 1 | 322 | 13 | 3-34 | 24.76 | 0 | 0 | 19.84 | 7.48 |
| 2010-11 | (New Zealand) | 221 | 0 | 238 | 15 | 3-12 | 15.86 | 0 | 0 | 14.73 | 6.46 |
| 2010-11 | (South Africa) | 96 | 0 | 107 | 3 | 2-16 | 35.66 | 0 | 0 | 32.00 | 6.68 |
| 2011-12 | (New Zealand) | 168 | 0 | 232 | 8 | 3-31 | 29.00 | 0 | 0 | 21.00 | 8.28 |