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EDIT: Forgot to mention that we can create new Daily Challenges, and we are always open for suggestions. So if you have one, please let us know, and we will see if we can add it.
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Hello, FrueGreads! First off, thanks for the elaborative reply! I wasn't very lucky lately, but I still enjoy participating in the competition. It's funny that during the current competition I was winning with odds @5.35 and @3.20 in the past and now I'm losing with @1.26, like yesterday. But I hope luck will be with me again soon.

Regarding the suggestion for a new Daily Challenge, here's mine:
User who wins the most with two consecutive bets (combined).Meaning that if a user A loses 0.5 mBTC and right after that wins 3 mBTC, the result is calculated as follows:
-0.5 mBTC + 3 mBTC = 2.5 mBTC
Of course if there's a pair of consecutive bets with higher result during the same day, that pair should be considered.
In short, user with the best pair wins.