Going back to 2005, the earliest year the results are on Judgingcard...
1. 587 - Brady Ragland - Floyd Co. 2008*
2. 586 - Mollie Lastovica - Gillespie Co. 2010*
3. 585 - Austin Langemeir - Guadalupe Co. 2011*
4. 584 - Segayle Foster - Floyd Co. 2008
5. 583 - Emily Jackson - McLennan Co. 2009*
583 - Everleigh Hayes - Calhoun Co. 2008
7. 581 - Taylor Haliburton - McLennan Co. 2010
8. 580 - Kylie Patterson - Guadalupe Co. 2015*
580 - Brittany Blum - Grayson Co. 2010
580 - Mollie Lastovica - Gillespie Co. 2008
580 - Topher Dalton - Lubbock Co. 2008
12. 578 - Dottie Cook - Runnels Co. 2009
578 - Barrett Carlisle - Hockley Co. 2009
578 - Cody Trimble - Knox Co. 2008
15. 577 - Taylor Walker - Guadalupe Co. 2011
577 - Emily Jackson - McLennan Co. 2010
577 - Mason Long - Sterling Co. 2010
18. 576 - Landon Eldridge - Burleson Co. 2014 *
576 - Luke Johnston - Ellis Co. 2010
576 - Trey Geiger - Atascosa Co. 2008
576 - Senee Foster - Floyd Co. 2008
* - High point for the year