This table is sortable by clicking on the header
| Year | Reg Date | Alternate Date |
|---|---|---|
| 2020 | May 14 - Thu - AM | May 21 - Thu - AM |
| 2019 | May 16 - Thu - AM | May 23 - Thu - AM |
| 2018 | May 17 - Thu - AM | May 24 - Thu - PM |
| 2017 | May 11 - Thu - AM | May 18 - Thu - AM |
| 2016 | May 12 - Thu - AM | May 18 - Wed - PM |
| 2015 | May 14 - Thu - AM | May 20 - Wed - PM |
| 2014 | May 15 - Thu - AM | May 21 - Wed - PM |
| 2013 | May 16 - Thu - AM | May 22 - Wed - PM |
| 2012 | May 17 - Thu - AM | May 23 - Wed - PM |
| 2011 | May 12 - Thu - AM | May 18 - Wed - PM |