Jewson Novices Chase
There was a surprise in the opening Jewson Novices' Chase as 20/1 shot Benefficient stayed on strongly to take a game win for Ireland in the hands of Brian Cooper.
Dynaste headed the market by some distance in a competitive renewal and David Pipe's seven-year-old led two from home but found little up the hill and was beaten by three and a quarter lengths by Tony Martin's charge.
Benefficient made most of the running but was shadowed by the 6/4 favourite who jumped into the lead three out. However jockey Tom Scudamore might have gone too soon as Cooper steered his mount on the inside to beat one of the most highly-touted horses at the Festival.
The 100/1 outsider Changing Times completed the places as Dynaste failed to land at this time of the year for the fourth time.
Martin said: "That was magic. I thought if he ran his race he would not be out of the first three. Of course I respected Dynaste but I thought ours was a little bit underrated. The jockey was excellent, it felt great."
Jonjo O'Neil earned his first winner of the week as Holywell landed the Pertemps Final at odds of 25/1.
Hollywell and Berties Dream went clear on the long run-in to the final hurdle. Although the winner landed a little flat over the last jump and idled a touch up the hill, jockey Richie McLernon urged his mount home and held on to win by a length and a half from Captain Sunshine (11/1).
Jetson was third at 10/1 with Tony McCoy guiding second favourite Shutthefrontdoor (6/1) to fourth.
O'Neill said: "Everything went right for Holywell this time. Richie, who is a great lad, gave him a good ride.
"This is a magical place. Everyone wants to have a winner here, whether it's an owner, jockey, trainer or groom. It's a great feeling to have one, and it's a real team victory for the yard."
It continued the run of big-priced handicap winners at the Festival with the first five winners coming in at a starting price of 20/1 or over.
Colin Tizzard's stable star Cue Card landed the Ryanair Chase in style.
Cue Card was second to wonderhorse Sprinter Sacre in the Arkle 12 months ago and the 7/2 shot romped away to win by nine lengths from favourite First Lieutenant.
Tizzard's son Joe was on board and forced a fairly brisk pace with Champion Court in the Grade 1 contest.
The seven-year-old jumped superbly out in front and the 2/1 favourite, who made a significant mistake three out, never looked like challenging.
For Non Stop (12/1) completed the placings, a further three and a quarter lengths back, as Champion Court idled up the hill while last year's victor Riverside Theatre was well beaten and 2010 and 2011 victor Albertas Run was pulled up.
The winning jockey said: "People say he's keen when he's taken on and he can be but he was so relaxed today and they were going my pace and I could keep filling him up.
"He's been to four festivals now and never been out of the winner's enclosure. He a class horse and has got closest to Sprinter Scare.
"Certain horses thrive off this environment and he's one of them. He walks round with a swagger."
Solwhit became the first Irish trained winner of the World Hurdle since 1995.
The 17/2 chance, in the hands of Paul Carberry, came to the last together with Celestial Halo but the 40/1 shot clattered the final hurdle and Charles Byrnes' charge landed the leading long-distance hurdle event in the National Hunt calendar by two and a half lengths.
The absence of four-time winner Big Buck’s left an open field with many of the contenders taking a punt on staying the three-mile distance and the heavily backed favourite Oscar Whisky was one who failed to stay.
Frontrunner Bog Warrior lead most of the way and stretched the field but his advantage dwindled down the hill as two more of the Irish challengers roared into contention.
Solwhit was unleashed on the far side and came home to net Ireland their ninth winner of the Cheltenham Festival.
Byrnes, who has nursed Solwhit back to top form after a near two-year lay-off, said: "It's fantastic. A lot of work has gone into him, which makes it special. We knew he was coming back to himself and he's just come right in the last couple of weeks.
"He's a class horse. He ran Hurricane Fly to a short head not so long ago and he hasn't lost it."
Smad Place (9/1) snatched third, a further three lengths back.
Byrne Group Plate
The 50/1 shot Carrickboy landed the Byrne Group Plate for his trainer Venetia Williams in the colours of Trevor Hemmings.
It was a third victory in the race for the trainer as Carrickboy made all under former Grand National winning jockey Liam Treadwell who gained his first Festival success.
Vino Griego (11/1) finished strongly but was a length and half back in second.
Tartak (20/1) was 12 lengths back in third with Hunt Ball (8/1), who won the novices' handicap here 12 months ago, completing the places as heavily backed favourite Ballynagour failed to get the two mile, five furlong trip.
There was drama before the start when second favourite Cantlow was not allowed to start by the vets due to a nose bleed while Matuhi fell heavily at the last when third and had to be put down.
Kim Muir Challenge Cup
Same Difference got up in a frantic finish to beat Super Duty in the Fulke Walwyn Kim Muir.
Nigel Twiston-Davies' 16/1 chance ended Ireland's 28-year losing streak in the race, pipping the 11/2 favourite and long-time leader by a head.
Romanesco (8/1) and Alfie Sherrin (9/1) followed them home in a fiercely contested handicap.
Same Difference, under Ryan Hatch, gave Twiston-Davies a second Festival winner of the week and the Naunton handler's 15th of his career.
Amateur rider JT McNamara had a bad fall from Galaxy Rock and was air lifted to hospital where he was placed in an induced coma.
Cross Country Handicap Chase
Big Shu won the Cross Country Chase at odds of 14/1 adding another win for the Irish and to cap a great day for the bookmakers.
The fast finishing Shakervilz (20/1) was second ahead of Outlaw Pete (6/1) and Bostons Angel (9/1).
It ended a long barren run for Barry Cash at the Festival with Arabella Boy the sixth beaten favourite of the day.