Since Kamara's classy opener, Bolton have responded well, dictating the play and forcing Portsmouth deeper into their half.
They have come close with a number of efforts but have not managed to find the net yet.
The Trotters fans believe their side can get back in this game.
GOAL: Wrexham 2-0 Forest Green
Paul Mullin (23 mins)
Rex FeaturesCopyright: Rex Features
Who else but Wrexham's Paul Mullin, who gets his 23rd goal of the season, and Forest Green are taking on water and sinking rather quickly.
The League Two player of the month for March heads home from inside the six-yard-box.
GOAL: Oxford 1-0 Peterborough
Mark Harris (pen, 19 mins)
Rex FeaturesCopyright: Rex Features
Oxford are gifted the chance to take the lead after Josh Murphy is felled in the penalty area and Mark Harris gratefully accepts with the resulting penalty.
That's his 14th league goal of the season.
The promotion race takes another twist!
What a start we've had this afternoon.
GOAL: Derby 2-0 Leyton Orient
Sonny Bradley (18 mins)
PA MediaCopyright: PA Media
Another corner, another goal for Derby!
This time Sonny Bradley is the beneficiary as he stretches to meet the ball on the volley and fires home from close range.
The start Rams fans were dreaming of.
Post update
Oxford 0-0 Peterborough
How will Peterborough get on this afternoon fresh from winning the EFL Trophy at Wembley last weekend?
It's been a fairly even start between these two promotion contenders and Posh's Joel Randall has just seen a header saved.
GOAL: Wrexham 1-0 Forest Green
Elliot Lee (17 mins)
Rex FeaturesCopyright: Rex Features
Wrexham take the lead at The Racecourse.
Elliot Lee in the right place at the right time.
The midfielder nabs the loose ball and tucks it neatly into the back of the Forest Green net.
GOAL: MK Dons 1-0 Mansfield
Max Deane (13 mins)
Rex FeaturesCopyright: Rex Features
A beauty from the MK Dons striker Max Deane.
With the ball at his feet he turns left, turns right and puts the Mansfield defender on his backside.
Deane looks up on goal and curls the ball into the top corner.
His 15th of the season.
League Two latest
#bbcefl
Just ten minutes gone and we've seen a flurry of early goals.
Notts County lead Walsall with a strike inside the first TWO minutes of the game, from Macaulay Langstaff.
AFC Wimbledon are ahead at Swindon, and Doncaster are leading Accrington.
Hold onto your hats, this might be an eventful afternoon!
Post update
Bolton 0-1 Portsmouth
BBC Sport's Dan George at the Toughsheet Stadium:
What a start for the Blues, Abu Kamara's pace the key before firing into the back of Nathan Baxter's net, sending the Portsmouth supporters into raptures.
A flood of blue smoke and confetti emerge from the packed away end as the Pompey fans celebrate the opener.
The Toughsheet stunned!
GOAL: Derby 1-0 Leyton Orient
Kane Wilson (10 mins)
PACopyright: PA
Another significant goal early on at the top of League Two with second-place Derby now in front.
Kane Wilson is on hand at the back post to knock home Nathaniel Mendez-Laing's corner.
Although the scorer has gone down as a George Moncur own goal on some screens so we'll keep you updated on who is eventually credited with it!
Derby need to win today with their promotion rivals threatening to leapfrog them and they've made the best possible start.
League One latest
#bbcefl
There's already been a big goal as Blackpool take the lead against already relegated Carlisle. The strike from Karamoko Dembele takes the Seasiders to within a single point of the play-off spots.
Elsewhere, Fleetwood, who could be relegated this afternoon have taken the lead against Northampton Town.
GOAL: Stockport 1-0 Morecambe
Isaac Olaofe (8 mins)
Rex FeaturesCopyright: Rex Features
What a start from the League Two leaders.
Isaac Olaofe volleys home from close range to put The Hatters ahead early.
That's his 20th goal this season.
It's all looking pretty rosy early doors for the home side at Edgeley Park.
Post update
Stockport 0-0 Morecambe
Stockport have an early chance cleared off the line!
Antoni Sarcevic whips a corner into the box which is flicked on by Ethan Pye and toward goal.
But the ball is cleared by a Morecambe player.
Solid start from the League Two leaders.
GOAL: Bolton 0-1 Portsmouth
Abu Kamara (7 mins)
Rex FeaturesCopyright: Rex Features
Big goal! What a start for Portsmouth!
Abu Kamara wins possession and pushes forward before looking up and firing his side ahead.
Early days but Pompey know that a win will see them go up as champions today.
KICK-OFF
#bbcefl
Away we go!
Can any of Portsmouth, Stockport or Wrexham confirm their promotion today?
At the bottom of League One, Fleetwood could be relegated by 5pm.
Now, where's that first goal coming from?
Get Involved
#bbcefl
Send us your thoughts throughout the afternoon by using #bbcefl, via WhatsApp on 03301231826 or text 81111 (UK only, standard message rates apply).
We'd love to hear from you.
Post update
Stockport v Morecambe (15:00 BST)
Rich Wolfenden
BBC Final Score at Edgeley Park
We’ve
just had a pre-match downpour at Edgeley Park.
From a Stockport point of view,
hopefully that's the only downer as they look to return to League One for the
first time in 13 years.
Elsewhere in League Two...
#bbcefl
There's a lot hanging on seventh-placed Crawley's game against relegation strugglers Colchester United this afternoon. A win would cement further their hopes of a play-off finish, whereas a loss would hand their Essex counterparts a vital three points.
Meanwhile, Sutton's remarkable rise from the foot of the table took a hit last week, but they have a chance to win their fifth game in six matches when they head to North Yorkshire to face Harrogate Town.
Crewe welcome another relegation candidate, Grimsby, as they push for an unlikely sprint finish to sneak into the automatic promotion spots.
Here's a full list of today's League Two fixtures which get under way at 15:00 BST:
MK
Dons v Mansfield
Stockport
v Morecambe
Wrexham
v Forest Green
Crawley v Colchester
Crewe v Grimsby
Doncaster
v Accrington
Gillingham
v Barrow
Harrogate v Sutton
Newport
v Tranmere
Salford
v Bradford
Swindon
v AFC Wimbledon
Walsall
v Notts County
Wrexham eye second promotion
Wrexham v Forest Freen (15:00 BST)
Owain Gwynedd Griffith
BBC Final Score at Stok Racecourse
Owain Gwynedd Griffith - BBC SportCopyright: Owain Gwynedd Griffith - BBC Sport
Wrexham are unchanged as they hope to secure a second successive promotion and a return to
the third tier of league football for the first time since 2005.
No
sightings of any Hollywood stars just yet but the media are here in force, wanting to be part of this fairytale story.
Forest Green make two changes in what is a must-win
game. Callum Jones and Fankaty Dabo come in.
EFL Trophy winners need to refocus on promotion aims
Oxford v Peterborough (15:00 BST)
Getty ImagesCopyright: Getty Images
Fresh from their Bristol Street Motors Trophy success at
Wembley last weekend, it’s back to the promotion race for Peterborough today.
Harrison Burrows was the hero against Wycombe as Posh
collected the silverware and they’re going to need another win today to stay in
contention to go up automatically.
They are six points behind second-place Derby and four
behind Bolton in third but have games in hand up their sleeve.
Oxford are also in the play-off mix and have won three of their
last four. They currently occupy sixth spot but will be well aware that in-form
Lincoln, Blackpool and Stevenage are all within striking distance and intent on
taking their place.
Live Reporting
Steve Mather, Luke De Costa and Dan Wareing
All times stated are UK
Post update
Bolton 0-1 Portsmouth
Dan George
BBC Sport at the Toughsheet Stadium
Since Kamara's classy opener, Bolton have responded well, dictating the play and forcing Portsmouth deeper into their half.
They have come close with a number of efforts but have not managed to find the net yet.
The Trotters fans believe their side can get back in this game.
GOAL: Wrexham 2-0 Forest Green
Paul Mullin (23 mins)
Who else but Wrexham's Paul Mullin, who gets his 23rd goal of the season, and Forest Green are taking on water and sinking rather quickly.
The League Two player of the month for March heads home from inside the six-yard-box.
GOAL: Oxford 1-0 Peterborough
Mark Harris (pen, 19 mins)
Oxford are gifted the chance to take the lead after Josh Murphy is felled in the penalty area and Mark Harris gratefully accepts with the resulting penalty.
That's his 14th league goal of the season.
The promotion race takes another twist!
What a start we've had this afternoon.
GOAL: Derby 2-0 Leyton Orient
Sonny Bradley (18 mins)
Another corner, another goal for Derby!
This time Sonny Bradley is the beneficiary as he stretches to meet the ball on the volley and fires home from close range.
The start Rams fans were dreaming of.
Post update
Oxford 0-0 Peterborough
How will Peterborough get on this afternoon fresh from winning the EFL Trophy at Wembley last weekend?
It's been a fairly even start between these two promotion contenders and Posh's Joel Randall has just seen a header saved.
GOAL: Wrexham 1-0 Forest Green
Elliot Lee (17 mins)
Wrexham take the lead at The Racecourse.
Elliot Lee in the right place at the right time.
The midfielder nabs the loose ball and tucks it neatly into the back of the Forest Green net.
GOAL: MK Dons 1-0 Mansfield
Max Deane (13 mins)
A beauty from the MK Dons striker Max Deane.
With the ball at his feet he turns left, turns right and puts the Mansfield defender on his backside.
Deane looks up on goal and curls the ball into the top corner.
His 15th of the season.
League Two latest
#bbcefl
Just ten minutes gone and we've seen a flurry of early goals.
Notts County lead Walsall with a strike inside the first TWO minutes of the game, from Macaulay Langstaff.
AFC Wimbledon are ahead at Swindon, and Doncaster are leading Accrington.
Hold onto your hats, this might be an eventful afternoon!
Post update
Bolton 0-1 Portsmouth
BBC Sport's Dan George at the Toughsheet Stadium:
What a start for the Blues, Abu Kamara's pace the key before firing into the back of Nathan Baxter's net, sending the Portsmouth supporters into raptures.
A flood of blue smoke and confetti emerge from the packed away end as the Pompey fans celebrate the opener.
The Toughsheet stunned!
GOAL: Derby 1-0 Leyton Orient
Kane Wilson (10 mins)
Another significant goal early on at the top of League Two with second-place Derby now in front.
Kane Wilson is on hand at the back post to knock home Nathaniel Mendez-Laing's corner.
Although the scorer has gone down as a George Moncur own goal on some screens so we'll keep you updated on who is eventually credited with it!
Derby need to win today with their promotion rivals threatening to leapfrog them and they've made the best possible start.
League One latest
#bbcefl
There's already been a big goal as Blackpool take the lead against already relegated Carlisle. The strike from Karamoko Dembele takes the Seasiders to within a single point of the play-off spots.
Elsewhere, Fleetwood, who could be relegated this afternoon have taken the lead against Northampton Town.
GOAL: Stockport 1-0 Morecambe
Isaac Olaofe (8 mins)
What a start from the League Two leaders.
Isaac Olaofe volleys home from close range to put The Hatters ahead early.
That's his 20th goal this season.
It's all looking pretty rosy early doors for the home side at Edgeley Park.
Post update
Stockport 0-0 Morecambe
Stockport have an early chance cleared off the line!
Antoni Sarcevic whips a corner into the box which is flicked on by Ethan Pye and toward goal.
But the ball is cleared by a Morecambe player.
Solid start from the League Two leaders.
GOAL: Bolton 0-1 Portsmouth
Abu Kamara (7 mins)
Big goal! What a start for Portsmouth!
Abu Kamara wins possession and pushes forward before looking up and firing his side ahead.
Early days but Pompey know that a win will see them go up as champions today.
KICK-OFF
#bbcefl
Away we go!
Can any of Portsmouth, Stockport or Wrexham confirm their promotion today?
At the bottom of League One, Fleetwood could be relegated by 5pm.
Now, where's that first goal coming from?
Get Involved
#bbcefl
Send us your thoughts throughout the afternoon by using #bbcefl, via WhatsApp on 03301231826 or text 81111 (UK only, standard message rates apply).
We'd love to hear from you.
Post update
Stockport v Morecambe (15:00 BST)
Rich Wolfenden
BBC Final Score at Edgeley Park
We’ve just had a pre-match downpour at Edgeley Park.
From a Stockport point of view, hopefully that's the only downer as they look to return to League One for the first time in 13 years.
Elsewhere in League Two...
#bbcefl
There's a lot hanging on seventh-placed Crawley's game against relegation strugglers Colchester United this afternoon. A win would cement further their hopes of a play-off finish, whereas a loss would hand their Essex counterparts a vital three points.
Meanwhile, Sutton's remarkable rise from the foot of the table took a hit last week, but they have a chance to win their fifth game in six matches when they head to North Yorkshire to face Harrogate Town.
Crewe welcome another relegation candidate, Grimsby, as they push for an unlikely sprint finish to sneak into the automatic promotion spots.
Here's a full list of today's League Two fixtures which get under way at 15:00 BST:
Wrexham eye second promotion
Wrexham v Forest Freen (15:00 BST)
Owain Gwynedd Griffith
BBC Final Score at Stok Racecourse
Wrexham are unchanged as they hope to secure a second successive promotion and a return to the third tier of league football for the first time since 2005.
No sightings of any Hollywood stars just yet but the media are here in force, wanting to be part of this fairytale story.
Forest Green make two changes in what is a must-win game. Callum Jones and Fankaty Dabo come in.
EFL Trophy winners need to refocus on promotion aims
Oxford v Peterborough (15:00 BST)
Fresh from their Bristol Street Motors Trophy success at Wembley last weekend, it’s back to the promotion race for Peterborough today.
Harrison Burrows was the hero against Wycombe as Posh collected the silverware and they’re going to need another win today to stay in contention to go up automatically.
They are six points behind second-place Derby and four behind Bolton in third but have games in hand up their sleeve.
Oxford are also in the play-off mix and have won three of their last four. They currently occupy sixth spot but will be well aware that in-form Lincoln, Blackpool and Stevenage are all within striking distance and intent on taking their place.