1. 7/18 by Colin Ackermann
It was the Vitality Blast 2019 match between Leicestershire and Birmingham Bears at Leicester on 7th August 2019. After Leicestershire managed 189/6 (20 overs), their captain Colin Ackermann bowled this historic spell. The South Africa-born present Netherlands off-spinner, Ackermann had the bowling figures of 4-0-18-7. That bowling helped them to bowl out Bears for 134 runs (17.4 overs).