Under 1500 uscf

Hello I just played in the under 1400 section at the southern california class championships and went 5 and 1 with a loss to a 1527 (his published rating was 1370). My rating went up to 1450. I am just curios to know if I think class d and e are easy for me how well will i do in the under 1500 section is it much harder. If you have a game with 1500 players playing each other that would be great. Thank you