The competition is too hard there. Even if you are in the top 50. You can easily get kicked out from the top 100 in the last hour. Usually, big whales show up in the last hours. Even a few of them appears in the last few minutes and they do big wager. Sometimes it really sucks. I am already used to these kinds of events. So, it's not surprising for me. One suggestion from me, Don't chase to win some big prizes until you are aware of making some loss too.
Yeah it is getting harder and harder and there are big whales on almost all casino sites. I never chase a spot in the top 100 as the risk - reward is not good; I just play daily to gain some more BFG tokens.
They just launched a new sports promotions for the WK soccer in Qatar (https://betfury.io/news/soccer_qatar_event) . There is also a twitter contest where you need to predict 2 scores to win some money but the link is broken.