Jason Roy underlined his pure natural talent with an innings of astonishing maturity.

The 19-year-old, who was dropped on two, went on to strike 138 off just 60 balls.

He rightly received a standing ovation from the huge crowd at Reigate Priory as the Llamas helped stage a truly fantastic game of Twenty20 cricket.

Priory disposed of Henley on Thames on their way to the National Finals Day of the Cockspur Rum tournament, and a trip to Barbados could be waiting for them.

Chris Murtagh won the toss for Reigate and decided to bowl first. Ian Hewett and Daryl King opened and it was not long before the Henley openers were smashing fours to all corners of the Priory.

Jon Gale was brought on to bowl the fourth over and cleaned up the Henley captain Bjorn Mordt first ball, and in his second over a quite superb stumping by Matt Bennett accounted for the other opener, Dave Allaway.

This only brought Jonno McLean and Dave Barnes together and they put on 80 runs together in just six overs before Roy had the dangerous McLean well caught in the deep by Michael Foster. His 68 had come in just 33 balls.

Wickets are key in Twenty20 cricket and after an early onslaught on Stuart Hume he and his spin twin Simon King started to work their way through the Henley middle order, taking two wickets apiece. Priory had looked likely to be chasing well over 200, but the Henley run rate was pulled back in the last seven overs and they finished on 191-7 after their 20 overs.

The pick of the Priory bowlers was undoubtedly Gale who finished with 2-29 off his four overs.

This was a great display by Henley and they must have felt confident of defending such a formidable total.

Simon Ecclestone and Roy opened up the Llamas response and it was a huge blow when "Eccles" was bowled for just five at the start of the third over.

Roy had been dropped off a difficult skyer in the first over and while the Priory members knew just how costly an error that could prove, the Henley team had no idea just how much they were going to have to pay for that mistake.

Captain Murtagh had joined Roy and the pair went at 10 an over for the next six overs.

As Murtagh realised just what sensational form Roy was in he settled back to just keep giving him the strike.

Roy's innings was quite one of the most exceptional pieces of clean, powerful striking that the large crowd will ever witness, at any level of cricket.

He literally pulverised the Henley bowling and smashed 13 fours and nine sixes in an innings of brutal power. His century was reached with a straight six into the Blue Anchor garden and the winning runs were a six into the football pavilion.

Murtagh's role and innings of 40, in a partnership of 166, cannot be underestimated and it was fitting that when Murtagh was out with just four needed for victory that Priory first XI skipper Ian Hewett was at the crease when Roy hit the winning runs, with almost three overs to spare.

The large crowd gave Hewett a wonderful reception in his last appearance for the Llamas, before returning to Australia, but it was nothing compared to the applause for Roy as he left the field to a standing ovation, having scored 138 not out in just 60 balls.

It is difficult to imagine a more exciting and powerful innings and underlined Roy's huge potential.

Priory march on with huge anticipation to the Finals day at Derby but it cannot be forgotten that it takes two teams to make a great match and the Henley effort was impressive and they were unfortunate to find an individual and opponents at the very top of their game.

The whole day was a wonderful advertisement for the game of cricket and the standard of sport available for free to the community.

The finals day is being televised live on Sky TV on Monday, September 28 and the Llamas take on Bournemouth in the first semi-final.

The other is between the Midlands champions, Cuckney and Ockbrook and Borrowash from the North. The final is under floodlights at the Derbyshire County Cricket Ground at 6.15pm with the winners going to Barbados to represent England in a Twenty20 festival.