Why I can't load leaderboard after 1000 place

Welcome to speedrun.com, where everything is broken. Don't know why, but the site doesn't load the leader board past 1000 places, so use this link if you need to load them: https://minecraft-rta-ranking.com/

and slightly offtopic but you can use this site to look at runs which havent been verified yet https://randomidiot13.github.io/queueclient-web/