The Blues have been cut from 66/1 into 12/1, with odds continuing to tumble.
Birmingham have had their odds decisively cut to be relegated, following news the Blues are set for a nine-point deduction.
They've been cut from 66/1 earlier this month, into 12/1 to go down from the Championship.
The punishment leaves the Blues just five points above the drop zone with eight games remaining and nervously looking over their shoulders.
A huge 66/1 for the drop on 4th March, the price has crashed after four successive losses. Three teams remain odds-on to go down to the third tier: Ipswich (1/100), Bolton (1/66) and Rotherham (10/11).
Oddschecker spokesperson George Elek: "This will be a bitter pill to swallow for Birmingham fans; after years of mismanagement Garry Monk had brought some stability back to the pitch, but this points deduction has sent them hurtling back towards the drop zone.
"It could have been worse though, many had predicted a 12 point deduction would have seen their odds shorten dramatically."