Twenty20 Bowling in Each Season by Pieteer Seelaar
| Season | | Balls | Mdns | Runs | Wkts | BB | Ave | 4wI | 5wI | SRate | Econ |
| 2008 | (Ireland) | 72 | 1 | 59 | 2 | 1-13 | 29.50 | 0 | 0 | 36.00 | 4.91 |
| 2009 | (England) | 48 | 0 | 69 | 3 | 2-36 | 23.00 | 0 | 0 | 16.00 | 8.62 |
| 2009-10 | (United Arab Emirates) | 114 | 0 | 123 | 8 | 4-19 | 15.37 | 1 | 0 | 14.25 | 6.47 |
| 2011-12 | (United Arab Emirates) | 192 | 1 | 196 | 8 | 3-16 | 24.50 | 0 | 0 | 24.00 | 6.12 |
| 2011-12 | (West Indies) | 66 | 0 | 62 | 3 | 2-27 | 20.66 | 0 | 0 | 22.00 | 5.63 |
| 2012 | (Netherlands) | 18 | 0 | 33 | 0 | | | | | | 11.00 |
| 2013 | (Namibia) | 42 | 0 | 61 | 0 | | | | | | 8.71 |
| 2013-14 | (Bangladesh) | 66 | 0 | 76 | 2 | 2-9 | 38.00 | 0 | 0 | 33.00 | 6.90 |
| 2013-14 | (United Arab Emirates) | 102 | 0 | 95 | 3 | 2-21 | 31.66 | 0 | 0 | 34.00 | 5.58 |
| 2015 | (Netherlands) | 30 | 0 | 36 | 1 | 1-18 | 36.00 | 0 | 0 | 30.00 | 7.20 |
| 2015 | (Scotland) | 54 | 0 | 55 | 3 | 2-19 | 18.33 | 0 | 0 | 18.00 | 6.11 |
| 2015 | (Ireland) | 24 | 0 | 28 | 0 | | | | | | 7.00 |
| 2015-16 | (India) | | 0 | 0 | 0 | | | | | | 0.00 |
| 2015-16 | (United Arab Emirates) | | 0 | 0 | 0 | | | | | | 0.00 |
| 2016-17 | (United Arab Emirates) | 6 | 0 | 12 | 0 | | | | | | 12.00 |
| 2018 | (England) | 6 | 0 | 13 | 0 | | | | | | 13.00 |
| 2018 | (Netherlands) | 96 | 0 | 120 | 5 | 3-25 | 24.00 | 0 | 0 | 19.20 | 7.50 |
| 2018-19 | (Oman) | 60 | 0 | 89 | 1 | 1-19 | 89.00 | 0 | 0 | 60.00 | 8.90 |
| 2019 | (Netherlands) | 129 | 0 | 155 | 7 | 3-28 | 22.14 | 0 | 0 | 18.42 | 7.20 |
| 2019 | (Ireland) | 48 | 0 | 80 | 2 | 1-18 | 40.00 | 0 | 0 | 24.00 | 10.00 |
| 2019-20 | (United Arab Emirates) | 132 | 1 | 121 | 7 | 3-17 | 17.28 | 0 | 0 | 18.85 | 5.50 |
| 2019-20 | (Oman) | 66 | 0 | 74 | 5 | 2-20 | 14.80 | 0 | 0 | 13.20 | 6.72 |
| 2021 | (Nepal) | 72 | 0 | 78 | 3 | 2-37 | 26.00 | 0 | 0 | 24.00 | 6.50 |
| 2021-22 | (United Arab Emirates) | 25 | 1 | 22 | 2 | 1-8 | 11.00 | 0 | 0 | 12.50 | 5.28 |