Calculating the odds is not limited to Poker games. It plays a big role in online rummy games too, and if you calculate the odds accurately, you will get a good idea about your opponents? cards.
If you do not know how to calculate odds in rummy, here are some of the common ways to calculate the odds:
Jokers: Online rummy games are played with two decks of cards including the printed Jokers. So you can easily calculate that there are 10 Jokers in the game: 2 printed Jokers and 8 wild Jokers. If you are competing with one player and you get more than 4 Jokers, there is a good probability that your opponent has fewer jokers. You could discard one of your Jokers to hint that your hand includes a lot of Jokers. This could scare your opponent and make him/her drop from the game.
Colour: There are 52 cards in both the colours: red and black. If you are dealt many red-coloured cards, you could predict that your opponent has many black-coloured cards. So you should not discard black cards during the initial moves, as your opponent could use them to form sequences with his black cards.
Connecting Cards: An understanding of the concept of connecting cards helps in rummy, as well in poker. If you have a group of connecting cards like 4 and 5 of Hearts, you have higher chances of forming sequences. But if you have 3 and 9 of Clubs, you have very few chances of getting all the cards from 4 to 8 of Clubs to form pure sequences. So, the best strategy would be to discard such non-connecting cards that have few chances of forming sequences.
High Cards: It is tricky to play with high-value cards like Aces, Kings, Queens and Jacks. Most of the players prefer to discard them, as they add high points to the hand but expert players like to play with them when the odds are right. Suppose you have Kings and Queens of Clubs, there is no need to discard them right away. You could wait for a few moves, as your opponent might have an Ace or a Jack and he could discard them as they are high-value cards. If he does, you could use that to form a sequence.
Use these concepts while playing rummy to maximize your chances of winning. But remember, the more you practice, the more you will be able to apply them efficiently while playing online rummy games.