And that's it! Everton twice come from behind to earn three priceless points, while also extending their six-year unbeaten run at Upton Park. They're also now the only remaining Premier League side with an unbeaten record this season, with Liverpool having lost to Southampton in one of the other 1500 kick-offs. It's up to joint-second for the Toffees, for the time being anyway, while West Ham remain in the bottom-half, and could drop lower than 11th by the time this weekend's action is over.
Another chance to make 100% sure of the points as Kevin Mirallas breaks down the wing with two waiting in the middle, but he scuffs his attempted delivery, which fails to clear the first man.
The Hammers know they need a goal here and are pushing every one forward, although they waste a good chance now as a decent crossing opportunity ends with the ball being delivered right into the arms of Tim Howard.
Romelu Lukaku should probably have just put this game to bed as he's played into the area with plenty of the goal to aim for, but it looks like he wants to walk it in, but ends up turning into his marker who easily robs him of possession.
The fourth official raises his board and shows there will be seven minutes of injury-time added on here at the end. Plenty time for West Ham to snatch a point, although with 10 men, there might be no way back.
After a lengthy break the game gets back under way, and Silvain Distin almost snatches a quick-fire equaliser, getting his head to the end of a delivery into the area , but he can't quite direct it and the ball fizzes out wide. Romelu Lukaku, meanwhile, seems to have regained all his senses and returns to the field for the final few minutes.
The home fans have been absolutely stunned into silence, and somehow Everton have turned this game completely on its head. Kevin Mirallas does all of the hard work, twisting and turning in the area before somehow clipping a delivery into the danger zone, and Romelu Lukaku is most determined and heads the ball down and into the bottom corner. There's no celebration, though, because the striker took a huge blow to his head, and looked to have been unconscious for quite a few moments there. He's hobbling off the park now, looking very groggy indeed, although if he can't carry on both sides will finish the game with 10 men, as Everton have already used all their substitutes.
GOAL! West Ham 2-3 Everton! Romelu Lukaku!
That is simply stunning! Leighton Baines is behind the resulting free-kick, and just like before this one is heading nowhere else expect the very top corner, although it's the other side of the goal this time, with the England international's sublime curling effort going in off the angle of the post. You won't see a better free-kick this weekend, that's for sure.
GOAL! West Ham 2-2 Everton! Leighton Baines!
Mark Noble turns from hero to zero now as the West Ham captain is shown a second yellow card for a foul on Ross Barkely, and Everton now have a huge chance to rescue something from this game.
Third and final change for West Ham now As Kevin Nolan makes way for Matthew Taylor, with Sam Allardyce looking to sure up his midfield for the final 10 or so minutes.
Everton's unbeaten start to the season is under serious threat now, and with all three substitutions having been made, there's little else Roberto Martinez can do to impact the outcome of this game, besides some astute positioning of the men he has at his disposal.
For all of Everton's possession, it's West Ham who have the best chance of the half as Kevin Nolan is upended inside the area, with Mark Noble stepping up to slot home a textbook spot-kick to put the hosts back in front.
GOAL! West Ham 2-1 Everton! Mark Noble!
Penalty to West Ham!
Everton's possession stat has now climbed to 70% in this half, although West Ham did just have a half-decent chance after Mladen Petric blocked an attempted clearance to win the ball, but he couldn't get it out from under his feet as the chance went begging.
Another change for West Ham now as Ricardo Vaz Te is brought on in place of Matt Jarvis.
Here come Everton again, and in particular Leighton Baines, who breaks down the left wing before playing a neat one-two and whipping a ball into the area, with his effort taking a big deflection and forcing Jussi Jaaskelainen into a brilliant reflex save.
West Ham finally work their way into the opposition half, and end up winning a corner, but after rising well to meet the delivery in the area, Mohamed Diame can only head wide of the mark.
Mark Noble sees yellow now for an unnecessary challenge on the half-way line, although the Toffees aren't able to make anything from the free-kick, which is hit over everyone and behind for a goal-kick.
Everton are turning the screw now, and Romelu Lukaku looks a cut above the rest, although he's just skewed an effort wide of goal, although some good pressing from the defence cut the striker's angle even tighter.
Having been second best in terms of possession in the first-half, Everton have simply dominated since the restart, with Roberto Martinez's men having seen 67% of the ball in the last 20 minutes.
Sam Allardyce looks to shake things up now as he makes his first change of the afternoon, with Modibo Maiga coming off for Mladen Petric.
Everton are level! Leighton Baines stands behind the free-kick, taking only a two-step run-up before curling a simply unstoppable effort past the flailing Jussi Jaaskelainen and into the very top corner. Game on!
GOAL! West Ham 1-1 Everton! Leighton Baines!
Ross Barkley has really stepped it up this half, and he wins his side a free-kick in a glorious position in front of goal, with James Collins picking up a yellow card for bringing the youngster down.
West Ham are hanging by a thread here as Leighton Baines and Romelu Lukaku cause the defenders all sorts of problems, the pair linking up to really good effect on two occasions, with the latest of those resulting in the full-back's driven cross just flicked wide by James McCarthy.
There's a couple of niggling fouls creeping into the game now, with one or two interesting sub-plots developing, although the referee has acknowledged a couple of over-eager tackles and won't hesitate to brandish a crad for the next one.
West Ham break on a counter-attack now, with Mark Noble leading the barrage, although his attempted ball across the face of goal is just intercepted, with Modibo Maiga waiting for a tap-in at the far-post.
Bryan Oviedo shows his enthusiasm as he chases a ball down to the corner flag, but he's a big over rambunctious and eventually up-ends his man from behind to concede a free-kick.
Ross Barkley is allowed to drift into space in the middle of the park, with a sight of goal opening up for the 20-year-old, but he gets his effort all wrong and balloons a shot over the crossbar.
Confirmation now that Leon Osman's day is over, with Bryan Oviedo brought on in his place.
Bad news for Everton here as Leon Osman is on the sideline undergoing treatment on what looks like a tight hamstring. It doesn't look like he'll be able to continue and Roberto Martinez could be forced into making his third and final change...
Lukaku's introduction to the field of play has completely turned this game on its head, and Mirallas tries to return the favour by sliding a pass through for the striker, but he allows the ball to roll across his body, letting the man on his blind side to just get a foot in to rob possession.
Romelu Lukaku's first contribution is to turn brilliantly in midfield before running at goal and slipping the ball through for Kevin Mirallas, but he's pushed a bit too far wide and his attempted ball back into the area is dealt with by the defence.
And we're back up and running for the second-half, with two changes to tell you about from Everton as Romelu Lukaku is brought on in place of Nikica Jelavic as Steven Naismith makes way for James McCarthy.
That will be the last piece of action for the first-half as the referee blows his whistle for the break. Join me shortly for the second period here at Upton Park.
Ross Barkley is the first player to go into the referee's notebook for what was actually quite a nasty challenge in the final third. From the resulting free-kick West Ham are almost through as the ball is played down inside the area, but Tim Howard is out quick to smother the danger, taking a kick to the hand for his trouble and winning a free-kick in his own box.
A smart move from Everton sees Leighton Baines played in behind following a quick one-two, but Mohamed Diame comes lunging in brilliantly, sending the ball out off the full-back, although the referee saw it otherwise and points for a corner. The delivery is not a threatening one though and the danger is easily dealt with first-time.
West Ham have a corner now, and it almost comes to a goal as Collins jumps into a crowd of bodies, with the ball eventually falling for Noble, but his turn-and-shot is well blocked at point-blank range to deny the hosts a second.
This one is a peach of a delivery, fizzing into the area and bouncing right on the penalty spot, but somehow there's not a single player on the end of it, and the ball eventually goes through everyone before being picked up on the opposite flank. After then working space to delivery, Jelavic looks to curl one in, but he sends his effort straight into the arms of the goalkeeper.
Everton's turn to threaten with a free-kick now, with Leighton Baines producing a much better delivery than Noble had, although West Ham are eventually able to clear for a corner, which is then put behind for another...
Mark Noble is still to find his range from set-pieces, though, as his latest dead-ball effort is easily cleared by the first line of defence.
Gareth Barry concedes a free-kick in a dangerous area on the right wing, and West Ham will be hoping to make the most of these situations today...
Eveton look for an instant response and they go on attack right from the off, but they're having trouble breaking through the Hammers defence, and some quick closing down from the hosts sees Kevin Mirallas robbed of possession on the edge of the area.
West Ham are in front, and it's their up-and-coming superstar Ravel Morrison who gets it. The youngster is teed up on the edge of the area by Matt Jarvis, and his shot takes a big deflection on its way through to leave Tim Howard flat-footed and only able to watch the ball roll into the back of the net.
GOAL! West Ham 1-0 Everton! Ravel Morrison!
A chance for Everton to get a good delivery into the area now as they win a free-kick some 35 yards out, but Kevin Mirallas gets too much purchase on his cross and Jussi Jaaskelainen is out to gather the danger.
Here come the Hammers down that left wing again, with Jarvis breaking free before looking to lay-off to Rat, but his pass is behind his team-mate and rolls out for a throw-in, much to the groans of the home support.
West Ham look very much the home side at the moment as they dominate possession, although it's mostly in their own half, and when they do push forward it's with a hopeful ball over the top which, so far, the Everton defence is having no problem dealing with.
Ross Barkley, Everton's own golden boy, is caught napping in possession now as he's robbed from behind, although his team-mates' failure to let him know he was being closed down didn't exactly help matters.
West Ham threaten from their first corner now, although James Collins is unable to make any connection with his header as the Toffees can eventually clear their lines.
Ravel Morrison looks a proper football out there, belying his 20 years of age as he does brilliantly to hold up play in the centre-circle before dancing his way past two men and eventually winning a free-kick.
Maiga's next contribution is to take a nasty blow to the inside of his knee, although it took an Everton player kicking the ball out of play for the referee to stop the game, although he was probably right to play-on as the forward is eventually back on his feet and ready to continue.
First shot in anger of the game as Modibo Maiga gets the slightest sight of goal, but his attempted 35-yard effort is woeful and sails miles over.
Matt Jarvis tries to create something down the left wing, but a give-and-go doesn't quite work out and Everton have the ball.
A free-kick for West Ham in a dangerous area, but Mark Noble's delivery is over everyone and is easily gathered by Tim Howard.
Adam says: Hi Ryan, a 2-1 win by the Hammers today. Mr Nolan himself to bag the first goal. Come on you Ironsssss!
West Ham's turn to threaten now as Matthew Jarvis is played in behind the defence, but his second touch is just a bit too strong and the back-tracking Sylvain Distin does brilliantly to just nip the ball off his toes.
Everton go close! The visitors work their way up field where Kevin Mirallas eventually curls one from way out, and it brings a quite brilliant save out of Jussi Jaaskelainen, who tips the danger away, with Nikica Jelavic sniffing around for a rebound.
A celebrity reader writes in now (although are fictional characters considered celebrities?): Jimmy Neutron from a very warm and sunny Manchester. Upton Park is never an easy place to get a result but after beating Chelsea I can't see why we can't beat the Hammers. With our star man, Gaz Baz in amazing form I can see a tight 2-1 win to the blues. Let's see if our new bootlaces are lucky?
Even in the early stages it looks as though today is going to be a battle of the midfields, with both lining up in flat 4-4-2 formations, which has so far seen the play limited in the middle third.
Early touches for both sides here, while Mohamed Diame wins the first free-kick of the game, showing what he's capable of following some fancy footwork in the middle of the park.
And we're up and running!
The players and match officials get the pre-match pleasantries out of the way, with handshakes, photographs and coin-tossing all that stands between us and the kick-off.
We're less than 10 minutes away from the kick-off now, and the atmosphere inside Boleyn Ground is slightly tentative, with the pundits having largely tipped this one to produce little in the way of goals. The players lined up in the tunnel look focused though, so lets hope they can prove the doubters wrong.
And next up: Hello Ryan. This is Stewart MacLaren from a warm & windy Torrevieja in Spain saying that Everton will beat West Ham United 2-1 at Upton Park this afternoon with good goals from Ross Barkley & Nikica Jelavic.
We've got our first caller of the afternoon, with Bernadette saying: I predict a big 3-0 win to Everton. We will control midfield and the speed up front. COYB.
Three points at this stage would undoubtedly be most welcome for both sides, but why not make it even more intersting by popping over to our friends at Sky Bet, who have West Ham at 21/10 to take the win today, while Everton are 13/10 favourites and a draw will fetch you 23/10.
Everton, meanwhile, are unchanged from the side that beat Chelsea, meaning loan signing Romelu Lukaku is on the bench, while Gareth Barry, Leon Osman and starlet Ross Barkley line up in the middle of the park.
So, just one change for West Ham from the side drew against Southampton last time out as Razvan Rat replaces the injured Guy Demel at full-back, while Modibo Maiga continues to lead the line up front while Ricardo Vaz Te and Mladen Petric are on the bench.
West Ham: Jaaskelainen, O'Brien, Collins, Reid, Rat, Diame, Noble, Morrison, Nolan, Jarvis, Maiga Subs: McCartney, Tomkins, Collison, Vaz Te, Adrian, Taylor, Petric
Everton: Howard, Coleman, Jagielka, Distin, Baines, Osman, Barry, Naismith, Barkley, Mirallas, Jelavic Subs: Robles, Heitinga, Oviedo, Deulofeu, McCarthy, Lukaku, Stones
As promised, the teams...
The team-sheets have just come across my desk, but before we get into that, why not get involved by dropping me an email at ryan,firstname.lastname@example.org and I'll share your thoughts here with our other readers.
Of course, in these early days of the season not too much stock can be put into current league positions, with Everton currently just three points behind second, and as many clear of the relegation zone.
Back to present day and the two sides find themselves in close quarters in the standings following equally shaky starts to the campaign, although the Toffees enjoy the slight advantage as they sit ninth, one point and one place ahead of West Ham.
It will have felt like an age for West Ham fans since they last celebrated a win in this fixture, with six years having past since the feat was achieved, when a Bobby Zamora wonder strike earned the Hammers a 1-0 win in 2007.
Good afternoon ladies and gentlemen, I'm Ryan Gordon and I'll be taking you through all the action today as West Ham host Everton at Upton Park, with kick-off scheduled for 15:00 GMT.