When a bookie finds that no one is betting a team, he will LENGTHEN the odds in an attempt to make the team more attractive to bettors. So, he may LENGTHEN Chelsea from 6.00 (5/1) to 8.00 (7/1) to win the Premiership. The opposite of SHORTEN.
make longer; "Lengthen this skirt, please"
become long or longer; "In Spring, the days lengthen"
When a bookmaker sees that no-one is backing a particular side, he may choose to lengthen the odds available.
When the odds on a participant increase from the figure they were originally posted at they are said to lengthen. Longer odds give higher returns.
The opposite of 'Shorten'. Referred to odds getting longer, that is, more attractive to the bettor.
When a bookmaker sees little activity on a particular outcome, they may choose to lengthen or increase the odds available.
Referred to the odds getting longer. When a bookmaker increases the odds on a particular outcome to make them more attractive. For example, from 3-1 to 4-1. This is also known as "drifting".