Mr Martin has yet to visit constituencies in Donegal, Wicklow, Louth or Laois/Offaly.
The party has also confirmed that Mr Martin has yet to visit seven out of the 12 Dublin constituencies.
But speaking earlier he denied that he has intentionally avoiding certain constituencies on the campaign trail
He says there’s a strong team on the ground on Laois/Offaly and Brian Cowen told him to focus on other constituencies, where his presence is required to secure a seat.
Micheal Martin also said he he hasn’t avoided Dublin and in fact kicked off his campaign there.
“I started the campaign in Tallaght and have been up in Dublin North, Dublin South and other constituencies, and we’re not finished yet.
“The team, and our headquarters, we are targeting constituencies.. based on our own research to ensure that we can both retain and secure seats in those particular constituencies.”
Last night Mr Martin, Eamon Gilmore and Enda Kenny had their final showdown of this election campaign on RTE’s Prime Time.
Pundits believe Mr Kenny and Mr Gilmore did well in what was often a bad-tempered exchange.
Mr Martin’s failure to visit Donegal comes as Tanaiste Mary Coughlan banned national newspaper outlets from her campaign in Donegal South West.