A cruise in east Belfast for the Glens as they thumped the basement boys, who had Paul McElroy sent-off in the second half.
Jay Donnelly bagged a hat-trick while Danny Purkis netted the other two to leave the Glens firmly in the hunt for an automatic European spot.
At the other end of the table Portadown stay six points adrift at the bottom with just five games left.
That's all from us for now - thanks for your company!
FULL-TIME
Glentoran 5-1 Portadown
Referee Keith Kennedy blows his whistle for full-time with Glentoran hammering Portadown 5-1.
A Jay Donnelly hat-trick and two goals from Danny Purkis secure all three points for the Glens, who are now nine points off leaders Larne heading into the split.
Luke Wilson did score for the visitors, with Paul McElroy also being shown a red card for the Ports midway through the second half.
Comfortable afternoon for the Glens.
CLOSE!
Glentoran 5-1 Portadown
Great work down the right from substitute Rory Donnelly, who cuts in and fires a fierce strike towards goal which flies just side of the far post.
Donnelly hits a treble
Glentoran 5-1 Portadown
Jay Donnelly nips in at the backpost to head in his third goal of the after afternoon and a fifth for the hosts.
Video content
Video caption: Watch: Jay Donnelly completes his hat-trick for Glentoran to make it 5-1Watch: Jay Donnelly completes his hat-trick for Glentoran to make it 5-1
McElroy sees red at Oval
Glentoran 5-1 Portadown
Ports striker Paul McElroy is sent off after pushing Terry Devlin in the face.
Video content
Video caption: Watch: Paul McElroy receives a red card for PortadownWatch: Paul McElroy receives a red card for Portadown
Purkis slots home number four
Glentoran 5-1 Portadown
Danny Purkis completes his double with a fine finish into the bottom corner to make it 4-1.
Video content
Video caption: Watch: Danny Purkis scores for Glentoran to make it 4-1Watch: Danny Purkis scores for Glentoran to make it 4-1
Wilson pulls one back for Ports
Glentoran 5-1 Portadown
Luke Wilson header is adjidged to have crossed the line after hitting the bar as Portadown make it 3-1 at the Oval.
Video content
Video caption: Watch: Luke Wilson scores for Portadown to make it 3-1Watch: Luke Wilson scores for Portadown to make it 3-1
GOAL
Glentoran 5-1 Portadown
That's his hat-trick!
Jay Donnelly scores his third goal of the afternoon with a header at the back post.
Strike partner Danny Purkis whips the ball in from the right, with Donnelly lurking at the back post before heading home from a tight angle.
Game over here at the Oval.
RED CARD
Glentoran 4-1 Portadown
Straight red card for Paul McElroy!
The Portadown striker pushes Terry Devlin in the face with referee Keith Kennedy having no choice but to send McElroy for an early shower.
GOAL
Glentoran 4-1 Portadown
Just a minute after conceding, Glentoran go straight up the other end and regain their three goal lead!
Danny Purkis grabs his second of the afternoon after cutting in from the left, before wrongfooting the Portadown 'keeper and slotting the ball home into the bottom left-hand corner.
Both Purkis and Donnelly are now on a hat-trick.
GOAL
Glentoran 3-1 Portadown
Portadown have pulled one back through Luke Wilson!
A Mark Russell corner from the right hand side is met on the head by Wilson, who's effort strikes the underside of the crossbar and crosses the line.
Lots of work to do for the Ports but a lifeline at least.
Post update
Glentoran 3-0 Portadown
James Singleton lets fly from just inside the box on the left, but sees his strike fly just over the crossbar.
KICK-OFF
Glentoran 3-0 Portadown
We're underway for the second half here at the Oval.
Purkis adds third for dominant Glens
Glentoran 3-0 Portadown
It's all too easy for the hosts as Danny Purkis capitalises on a defensive mix-up tp slot into an empty goal.
Video content
Video caption: Watch: Danny Purkis scores for Glentoran to make it 3-0Watch: Danny Purkis scores for Glentoran to make it 3-0
Caddell seals Irish Cup final spot for Crues
Dungannon Swifts 0-1 Crusaders
A delightful injurt-time lob from Declan sends Irish Cup holders Crusaders into the final against Ballymena United in a repeat of last year's decider.
Video caption: Decland Caddell strike seals Crusaders Irish Cup final spotDecland Caddell strike seals Crusaders Irish Cup final spot
HALF-TIME
Glentoran 3-0 Portadown
The Glens are three goals to the good at the break thanks to two goals from Jay Donnelly and Danny Purkis' injury-time strike.
GOAL
Glentoran 3-0 Portadown
Calamity from Portadown as Danny Purkis pounces and makes it 3-0 Glentoran!
A poor attempted header from Patrick McNally back to Ondrej Mastny lets Purkis in, before he rounds the goalkeeper and blast the ball into an open net from no more than a yard out.
Walk in the park so far for the Glens, Portadown struggling.
Donnelly at the double for Glens
Glentoran 2-0 Portadown
Jay Donnelly strikes again for the Oval hosts with a composed finish after going clear on goal.
Video content
Video caption: Watch: Jay Donnelly scores his second for Glentoran to make it 2-0Watch: Jay Donnelly scores his second for Glentoran to make it 2-0
Post update
Glentoran 2-0 Portadown
Shay McCartan fires just over the crossbar after some neat football from the Glens.
It's one-way traffic now as Glentoran go in search of their third goal of the afternoon.
YELLOW CARD
Glentoran 2-0 Portadown
Luke Wilson is awarded the first yellow card of the afternoon from referee Keith Kennedy.
Live Reporting
All times stated are UK
Video caption: Watch: Jay Donnelly completes his hat-trick for Glentoran to make it 5-1Watch: Jay Donnelly completes his hat-trick for Glentoran to make it 5-1 Video caption: Watch: Paul McElroy receives a red card for PortadownWatch: Paul McElroy receives a red card for Portadown Video caption: Watch: Danny Purkis scores for Glentoran to make it 4-1Watch: Danny Purkis scores for Glentoran to make it 4-1 Video caption: Watch: Luke Wilson scores for Portadown to make it 3-1Watch: Luke Wilson scores for Portadown to make it 3-1 Video caption: Watch: Danny Purkis scores for Glentoran to make it 3-0Watch: Danny Purkis scores for Glentoran to make it 3-0 Video caption: Decland Caddell strike seals Crusaders Irish Cup final spotDecland Caddell strike seals Crusaders Irish Cup final spot Video caption: Watch: Jay Donnelly scores his second for Glentoran to make it 2-0Watch: Jay Donnelly scores his second for Glentoran to make it 2-0
Latest PostFinal whistle
Glentoran 5-1 Portadown
A cruise in east Belfast for the Glens as they thumped the basement boys, who had Paul McElroy sent-off in the second half.
Jay Donnelly bagged a hat-trick while Danny Purkis netted the other two to leave the Glens firmly in the hunt for an automatic European spot.
At the other end of the table Portadown stay six points adrift at the bottom with just five games left.
That's all from us for now - thanks for your company!
FULL-TIME
Glentoran 5-1 Portadown
Referee Keith Kennedy blows his whistle for full-time with Glentoran hammering Portadown 5-1.
A Jay Donnelly hat-trick and two goals from Danny Purkis secure all three points for the Glens, who are now nine points off leaders Larne heading into the split.
Luke Wilson did score for the visitors, with Paul McElroy also being shown a red card for the Ports midway through the second half.
Comfortable afternoon for the Glens.
CLOSE!
Glentoran 5-1 Portadown
Great work down the right from substitute Rory Donnelly, who cuts in and fires a fierce strike towards goal which flies just side of the far post.
Donnelly hits a treble
Glentoran 5-1 Portadown
Jay Donnelly nips in at the backpost to head in his third goal of the after afternoon and a fifth for the hosts.
Video content
McElroy sees red at Oval
Glentoran 5-1 Portadown
Ports striker Paul McElroy is sent off after pushing Terry Devlin in the face.
Video content
Purkis slots home number four
Glentoran 5-1 Portadown
Danny Purkis completes his double with a fine finish into the bottom corner to make it 4-1.
Video content
Wilson pulls one back for Ports
Glentoran 5-1 Portadown
Luke Wilson header is adjidged to have crossed the line after hitting the bar as Portadown make it 3-1 at the Oval.
Video content
GOAL
Glentoran 5-1 Portadown
That's his hat-trick!
Jay Donnelly scores his third goal of the afternoon with a header at the back post.
Strike partner Danny Purkis whips the ball in from the right, with Donnelly lurking at the back post before heading home from a tight angle.
Game over here at the Oval.
RED CARD
Glentoran 4-1 Portadown
Straight red card for Paul McElroy!
The Portadown striker pushes Terry Devlin in the face with referee Keith Kennedy having no choice but to send McElroy for an early shower.
GOAL
Glentoran 4-1 Portadown
Just a minute after conceding, Glentoran go straight up the other end and regain their three goal lead!
Danny Purkis grabs his second of the afternoon after cutting in from the left, before wrongfooting the Portadown 'keeper and slotting the ball home into the bottom left-hand corner.
Both Purkis and Donnelly are now on a hat-trick.
GOAL
Glentoran 3-1 Portadown
Portadown have pulled one back through Luke Wilson!
A Mark Russell corner from the right hand side is met on the head by Wilson, who's effort strikes the underside of the crossbar and crosses the line.
Lots of work to do for the Ports but a lifeline at least.
Post update
Glentoran 3-0 Portadown
James Singleton lets fly from just inside the box on the left, but sees his strike fly just over the crossbar.
KICK-OFF
Glentoran 3-0 Portadown
We're underway for the second half here at the Oval.
Purkis adds third for dominant Glens
Glentoran 3-0 Portadown
It's all too easy for the hosts as Danny Purkis capitalises on a defensive mix-up tp slot into an empty goal.
Video content
Caddell seals Irish Cup final spot for Crues
Dungannon Swifts 0-1 Crusaders
A delightful injurt-time lob from Declan sends Irish Cup holders Crusaders into the final against Ballymena United in a repeat of last year's decider.
Read more here
Video content
HALF-TIME
Glentoran 3-0 Portadown
The Glens are three goals to the good at the break thanks to two goals from Jay Donnelly and Danny Purkis' injury-time strike.
GOAL
Glentoran 3-0 Portadown
Calamity from Portadown as Danny Purkis pounces and makes it 3-0 Glentoran!
A poor attempted header from Patrick McNally back to Ondrej Mastny lets Purkis in, before he rounds the goalkeeper and blast the ball into an open net from no more than a yard out.
Walk in the park so far for the Glens, Portadown struggling.
Donnelly at the double for Glens
Glentoran 2-0 Portadown
Jay Donnelly strikes again for the Oval hosts with a composed finish after going clear on goal.
Video content
Post update
Glentoran 2-0 Portadown
Shay McCartan fires just over the crossbar after some neat football from the Glens.
It's one-way traffic now as Glentoran go in search of their third goal of the afternoon.
YELLOW CARD
Glentoran 2-0 Portadown
Luke Wilson is awarded the first yellow card of the afternoon from referee Keith Kennedy.