Since 2011, Cullen, who took a bronze medal at the European Indoors in 2009 and a fourth at the European Cross-Country a year earlier, has had a long string of injury and illness woes.
On Sunday, she will test her fitness against a strong women's field that includes Linda Byrne of DSD.
Entry for the race closes on Saturday with a record 2,500 expected to line out.
p Race organisers Raheny Shamrock are requesting that runners use public transport to get to Sunday's race. Raheny is well served by both bus and DART.
Hehir eyes Dungarvan defence
Maria McCambridge and Sean Hehir, who both set course records at last year's John Treacy Dungarvan 10-mile, will be back to defend their titles on Sunday.
Hehir ran a sub-50 minute time when he won last year and hopes to improve on that.
Raheny duo take Leinster titles
Raheny pair Fiona Roche and Simon Ryan were the individual winners at the Leinster Senior Cross-Country Championships in Ballyroan, Co Laois, with Raheny also winning the men's team title.
Raheny dominated the women's race with Elish Kelly 2nd and Maria O'Sullivan 3rd. The team finished second behind Donore. Behind Ryan, the remainder of the Raheny men's team packed well for their title, with Bernard Roe 4th, Ian Conroy 7th, Brian Leahy 8th and Donal Foley 9th. Donore finished second.
Ageless Ryan wins at Tuam 5km
The ageless Gerry Ryan of Craughwell, who turns 50 this year, led home 544 finishers at the Tuam 5km. Mayo's Mary Gleeson was first woman. Tomas Fitzpatrick of Tallaght won the Great Heath 10km in Portlaoise. In Limerick, over 1,200 turned out for the Milford Hospice 10km.
Soggy ground can't stop Niamh
Niamh Boland and Robbie Matthews were winners at the Eircom BHAA Cross-Country held in very soggy conditions at Cherryfield Park in Firhouse, Dublin. In the men's five mile, Matthews had a good win over Eoin Callaghan.
Chamney back in 1500m form
Thomas Chamney, who returned to competition late last summer after two years of injury woes, ran 3:47.44 for 1500m at Antequera at the weekend. Over the same distance, Conor Bradley ran 3:48.51 in Scotland and John Coghlan 3:49.88 in Vienna. Kerry Harty ran 4:19.00 for 1500m in Glasgow, where Catherine McManus was second in the 60m hurdles with 8.81, while Amy Foster ran 7.54 for 60m. In the USA, Kalyn Sheehan won the 60m hurdles in 8.72.