The 21-year-old goalkeeper arrives at the club on a season-long loan from Premier League side Watford in July 2021.
Parkes, who will wear the number 20 shirt for manager Andy Hessenthaler’s side this season, has played in the National League previously, playing the final eight games of last season for Barnet.
He kept clean sheets against Sutton United, Maidenhead, and Weymouth in those eight games.
A former England under-17 representative, Parkes joined Watford from Southampton in January 2019.
He had spent 10 years with the Saints before joining the Hornets, where he has been a regular in the under-23s team as well as travelling with the first-team squad and appearing on the bench during Watford’s successful promotion-winning campaign last season.
Watford loanee Adam Parkes saved a penalty on his debut as Dover Athletic continued preparations for the new season with a close victory against neighbours Folkestone Invicta at Crabble on Saturday
A trialist put the home side ahead midway through the first half, however, Whites were pegged back in the second half thanks to a brilliant goal from Tyler Sterling.
Folkestone then had the chance to go ahead, however, former Dover striker Ade Yusuff’s penalty was saved by Parkes, with Aaron Cosgrave scoring with the next attack to seal victory for Whites.
First half action saw goalkeeper Josh Bexon forced into an early save after Folkestone went close from a free-kick through Sterling.
Whites needed Bexon again to keep the score level, first parrying away Yusuff’s shot, before getting down well to save Alfie Paxman’s rebound.
However, Dover grew into the game and almost went one up through Ricky Miller as a good ball played him in behind the Folkestone defence, but his shot hit the crossbar.
Travis Gregory then went close after beating off one challenge, his shot was blocked from the corner.
Whites’ pressure was rewarded from the corner as a got a strong header onto the ball from the cross power home.
Manager Andy Hessenthaler made 10 changes at halftime, which included Watford loanee Parkes.
Shortly after the break, Folkestone was level through Sterling’s free-kick.
Whites then went searching for that second goal. First Trialist G went close when his shot from outside the area curled just wide.
Cosgrave then would have liked to do better when he got put through on goal, but he mishit his shot and Folkestone was able to clear.
Moments later, Trialist H went close as the ball landed at his feet in the box, but his shot went just wide of the left-hand post.
Folkestone was then awarded a penalty with 10 minutes to go and from that, Dover went straight down the other end to go back in front, with Cosgrave getting on the end of a cross into the box to seal victory.
First Half XI – Bexon, Wood, Goodman, Trialist A, Twumasi, Trialist B, Trialist C, Da Costa, Gregory, Miller, Williamson
Second Half XI – Parkes, Wratten, Trialist D, Trialist E, Trialist F, Hanson, Trialist G, Trialist H, Trialist I, Trialist J, Cosgrave
Ben Williamson marked his Dover debut with a goal as Andy Hessenthaler’s squad got some more valuable minutes in their legs at The Charles Ground.
The frontman, who joined us in June, scored the third and final goal after coming on at half-time, one of seven changes made during the interval as the manager gave some trialists their opportunity to impress.
It was a trialist, the only one in action in the first half, who opened the scoring inside the opening 15 minutes before Ricky Miller doubled the lead 10 minutes later with his third goal in two games.
Hessenthaler rang the changes at half-time with only captain Sam Wood, TJ Bramble, goalkeeper Josh Bexon, and Jake Goodman remaining on the pitch from the starting line-up.
Williamson ended the scoring in style, firing home with a well-placed shot into the corner from outside the box.
Ricky Miller scored twice in the first half of his return to Crabble as Whites put four past Ashford United in their first pre-season game.
Miller started the rout for the home side inside the first 10 minutes, before James Caton doubled Whites’ lead just after the half hour mark.
Whites’ number nine then doubled his tally and got Dover’s third towards the end of the half from the penalty spot, before second-half substitute Aaron Cosgrave slotted home the fourth.
Miller wasted little time in getting the home faithful singing his name again after he opened the scoring in the eighth minute after getting on the end of Travis Gregory’s cross into the box.
He almost doubled his tally shortly after, but his shot towards the near post was well saved by the Ashford goalkeeper.
Caton – also making his return to the club – doubled Whites’ tally with a superb curling effort from the edge of the area which gave the keeper no chance.
Whites were then awarded a penalty for handball, with the spot-kick being slotted home into the left corner by Miller.
He almost got his hat-trick with the last chance of the half, but his header was wide of the target.
Manager Andy Hessenthaler made 11 changes at half-time but Dover still looked lively, winning a penalty five minutes into the second half, but it was pulled wide by a trialist.
However, moments later Whites were 4-0 up as Cograve calmly placed the ball home to put the result beyond doubt.
Ashford did get a consolation midway through the second half, with their striker putting the ball past the trialist goalkeeper.
Chances were hard to come by after this, with the best one coming from a trialist who hit the post after a brilliant run.
Whites are back in action on Tuesday night as they travel to Deal Town.
Forward who arrived on a season-long loan from League One side AFC Wimbledon in July.
The 21-year-old, who came through the academy ranks at Colchester United after being at West Ham United as a schoolboy, will wear the number 11 shirt for manager Andy Hessenthaler’s side this season.
He joined the Dons earlier this month after impressing their manager Mark Robinson while spending time with his club at the end of last season.
Former Sheffield Wednesday, Plymouth Argyle, and Coventry City defender who joined as a player/coach in June 2021..
The French-born former Benin international centre-back left fellow National League club Eastleigh in February 2020.
He joined the Spitfires from Coventry City in 2016 and made 85 appearances for them, scoring nine times.
Johnson played 88 games for Sheffield Wednesday, 43 for Plymouth, and 34 for Coventry, where he was captain during the 2014/15 season.