Women's International Twenty20 Bowling in Each Season by Laura Marsh
| Season | | Balls | Mdns | Runs | Wkts | BB | Ave | 4wI | 5wI | SRate | Econ |
| 2007 | (England) | 31 | 0 | 41 | 3 | 2-21 | 13.66 | 0 | 0 | 10.33 | 7.93 |
| 2007-08 | (Australia) | 24 | 0 | 23 | 1 | 1-23 | 23.00 | 0 | 0 | 24.00 | 5.75 |
| 2008 | (England) | 66 | 1 | 38 | 4 | 2-7 | 9.50 | 0 | 0 | 16.50 | 3.45 |
| 2009 | (England) | 144 | 1 | 100 | 6 | 2-11 | 16.66 | 0 | 0 | 24.00 | 4.16 |
| 2009-10 | (India) | 72 | 0 | 76 | 4 | 3-29 | 19.00 | 0 | 0 | 18.00 | 6.33 |
| 2009-10 | (West Indies) | 12 | 0 | 6 | 1 | 1-6 | 6.00 | 0 | 0 | 12.00 | 3.00 |
| 2010 | (England) | 72 | 0 | 87 | 1 | 1-23 | 87.00 | 0 | 0 | 72.00 | 7.25 |
| 2010 | (West Indies) | 72 | 0 | 51 | 4 | 3-17 | 12.75 | 0 | 0 | 18.00 | 4.25 |
| 2010-11 | (Sri Lanka) | 48 | 0 | 28 | 3 | 2-15 | 9.33 | 0 | 0 | 16.00 | 3.50 |
| 2010-11 | (Australia) | 120 | 0 | 140 | 2 | 1-25 | 70.00 | 0 | 0 | 60.00 | 7.00 |
| 2011 | (England) | 90 | 0 | 75 | 2 | 1-20 | 37.50 | 0 | 0 | 45.00 | 5.00 |
| 2011-12 | (New Zealand) | 96 | 0 | 85 | 4 | 2-21 | 21.25 | 0 | 0 | 24.00 | 5.31 |
| 2011-12 | (South Africa) | 72 | 0 | 66 | 3 | 3-19 | 22.00 | 0 | 0 | 24.00 | 5.50 |
| 2012 | (England) | 198 | 1 | 143 | 8 | 2-15 | 17.87 | 0 | 0 | 24.75 | 4.33 |
| 2012-13 | (Sri Lanka) | 114 | 1 | 114 | 5 | 2-22 | 22.80 | 0 | 0 | 22.80 | 6.00 |
| 2014-15 | (New Zealand) | 68 | 0 | 66 | 5 | 2-24 | 13.20 | 0 | 0 | 13.60 | 5.82 |
| 2015-16 | (India) | 48 | 0 | 30 | 4 | 3-12 | 7.50 | 0 | 0 | 12.00 | 3.75 |
| 2018-19 | (Sri Lanka) | 66 | 0 | 47 | 3 | 1-14 | 15.66 | 0 | 0 | 22.00 | 4.27 |
| 2018-19 | (India) | 48 | 0 | 46 | 1 | 1-22 | 46.00 | 0 | 0 | 48.00 | 5.75 |
| 2019 | (England) | 36 | 0 | 59 | 0 | | | | | | 9.83 |