An overcall is a bid made after the opposition have already opened the bidding. Whereas an opening bid can show a 3, 4 or 5 card suit depending on your bidding system, an overcall is always a 5 card suit.
Good 5 card suit, 10 - 15 points
Unlike an opening bid, you don't need to have 12 points for a simple overcall. A good 5-card suit is the key and good rule of thumb is two of the top four honours in the suit.
This next hand is not strong but spades would make a good trump suit, you take up opponents' bidding space and, if you end up defending, partner will know to lead a spade.
A good 5 card suit is all you need for an overcall
Weak jump overcall
Good 6 card suit, 6 - 10 points
A weak jump overcall is similar to a weak 2 opening bid. You can quickly describe your hand to your partner and at the same time make it hard for the opposition to enter the auction
Good 7 card suit, 6 - 10 points
A preemptive overcall is similar to a preemptive opening bid.
An overcall of 1NT shows 16-18 points, balanced.
Watch, Learn, Play
Watch 10 hands being played, ask questions during the livestream and then enjoy playing the hands yourself.
Learn Bridge Online
Join Graeme every Wednesday for supervised play at learnbridgeonline.com
Play Bridge Online
Play bridge and become a better player with livestreams, videos and lessons.