| Full name: | Onika Theola Wallerson |
| Born: | 18th April 1985, Georgetown, Guyana |
| Batting: | Right-hand batter |
| Bowling: | Right-arm medium pace |
| Teams: | United States of America Women (Women's International Twenty20: 2019-2023); Guyana Women (Women's List A: 2002-2011); All teams |
| Lists of matches and more detailed statistics | |
| Women's International Twenty20 Career Batting and Fielding (2019-2023) | |||||||||||
| M | I | NO | Runs | HS | Ave | 100 | 50 | SRate | Ct | ||
| United States of America Women | 8 | 4 | 0 | 30 | 23 | 7.50 | 0 | 0 | 50.84 | 3 | |
| Women's International Twenty20 Career Bowling (2019-2023) | ||||||||||
| Balls | Mdns | Runs | Wkts | BB | Ave | 4wI | 5wI | SRate | Econ | |
| United States of America Women | 108 | 1 | 88 | 2 | 1-14 | 44.00 | 0 | 0 | 54.00 | 4.88 |
| Women's List A Career Batting and Fielding (2002-2011) | ||||||||||
| M | I | NO | Runs | HS | Ave | 100 | 50 | Ct | ||
| Guyana Women | 11 | 9 | 1 | 61 | 35 | 7.62 | 0 | 0 | 3 | |
| Women's List A Career Bowling (2002-2011) | ||||||||||
| Balls | Mdns | Runs | Wkts | BB | Ave | 4wI | 5wI | SRate | Econ | |
| Guyana Women | 48 | 0 | 57 | 1 | 1-20 | 57.00 | 0 | 0 | 0.00 | 4.62 |
| Women's Twenty20 Career Batting and Fielding (2019-2023) | |||||||||||
| M | I | NO | Runs | HS | Ave | 100 | 50 | SRate | Ct | ||
| United States of America Women | 8 | 4 | 0 | 30 | 23 | 7.50 | 0 | 0 | 50.84 | 3 | |
| Women's Twenty20 Career Bowling (2019-2023) | ||||||||||
| Balls | Mdns | Runs | Wkts | BB | Ave | 4wI | 5wI | SRate | Econ | |
| United States of America Women | 108 | 1 | 88 | 2 | 1-14 | 44.00 | 0 | 0 | 54.00 | 4.88 |