can someone tell me the chances to get a champion shard from a chest twice in a row?

lately i've been getting so many champion shards from my chests, and last week i got one, and today i got a chest and i opened it and guess what, a champion shard. i'm starting to think the probability to get a champ shard from chests is bugged, or i'm the unluckiest guy ever.
Report as:
Offensive Spam Harassment Incorrect Board