General Election: Bookies tip SDLP's Hanna and Eastwood to win in South Belfast and Foyle
Bookies have made the SDLP's Claire Hanna the favourite in the South Belfast constituency.
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McLean has Ms Hanna as the 1/8 frontrunner to oust the DUP's Emma Little-Pengelly.
The bookie is also predicting that SDLP leader Colum Eastwood will gallop home in Foyle ahead of outgoing Sinn Fein MP Elisha McCallion.
McLean is offering odds of 1/2 on Mr Eastwood and 7/5 on Ms McCallion.
However, there are no safe bets in North Belfast, where outgoing DUP MP Nigel Dodds is facing a tough challenge from Sinn Fein's John Finucane.
The bookie says the fight is too close to call, with both men listed at 5/6.
Photo finishes will not be needed in a number of other constituencies, however. In North Antrim and West Belfast, the DUP's Ian Paisley and Sinn Fein's Paul Maskey are 1/200 to romp home.
In North Down, meanwhile, the DUP's Alex Easton is McLean's 1/2 choice to take the seat vacated by Lady Sylvia Hermon. Alliance Party deputy leader Stephen Farry is 8/5 and Ulster Unionist Alan Chambers is on 12/1.
In East Belfast, the DUP's Gavin Robinson is the favourite at 1/4, but punters can get 9/4 on his predecessor, Alliance leader Naomi Long MEP.
Sinn Fein Fermanagh and South Tyrone candidate Michelle Gildernew is the 2/5 favourite to retain her seat, while another former incumbent, Tom Elliott, is on 7/4.
If the bookies are right, the DUP will take nine seats, three ahead of Sinn Fein, while the SDLP will win two seats.
One source said punters were showing a "lively" interest in the elections, with a lot of money going on Colum Eastwood and Gavin Robinson in particular.