| 2019 Southwest CA Regional | Del Mar, CA | 10/10/2019 | 10/12/2019 | MT19SCA |
| 2019 North Coast Regional | Akron, OH | 10/18/2019 | 10/19/2019 | MT19NCR |
| 2019 Mid-Eastern Regional | York, PA | 11/9/2019 | 11/10/2019 | MT19MER |
| 2020 Kentucky Thoroughbreds Regional | Lexington, KY | 1/17/2020 | 1/18/2020 | MT20KYT |
| 2020 Florida Mid-Winter Regional | Kissimmee, FL | 1/24/2020 | 1/25/2020 | MT20FLRO |
| 2020 Arizona Sunshine Regional | Fountain Hills, AZ | 3/13/2020 | 3/14/2020 | MT20AZR |
| 2020 Southern Ohio Regional | Wilmington, OH | 4/2/2020 | 4/4/2020 | MT20SOH |
| 2020 Pacific Northwest Regional | Bremerton, WA | 5/1/2020 | 5/3/2020 | MT20PNW |
| 2020 Rocky Mountain Regional | Golden, CO | 6/12/2020 | 6/13/2020 | MT20RMR |
| 2020 Eastern States Regional | Liverpool, NY | 8/7/2020 | 8/8/2020 | MT20ESR |
| 2020 All Texas Chapters Regional | Houston, TX | 8/20/2020 | 8/22/2020 | MT20ATX |
| 2020 Mid-Eastern Regional | York, PA | 10/17/2020 | 10/18/2020 | MT20MER |
| 2021 Florida Mid-Winter Regional | Lakeland, FL | 2/11/2021 | 2/13/2021 | MT21FLR |
| 2021 Southern Ohio Regional | Wilmington, OH | 4/8/2021 | 4/10/2021 | MT21SOH |
| 2021 All Texas Chapters Regional | Houston, TX | 8/26/2021 | 8/28/2021 | MT21ATX |
| 2022 Southern Ohio Regional | Wilmington, OH | 4/7/2022 | 4/9/2022 | MT22SOH |
| 2023 Southern Ohio Regional | Wilmington, OH | 4/13/2023 | 4/15/2023 | MT23SOH |