(CNN) He was a brilliant racehorse with an unbeaten record, but Frankel is proving to be an equally prolific scorer at stud.
Frankel entered his second career under huge expectations, but as the leading sire at Royal Ascot 2018 he is proving a chip off the old block of his prodigious father Galileo, one of the most celebrated and successful stallions ever.
Frankel's offspring scored three wins, two seconds at last month's royal meeting, netting a prize haul of £775,000 ($1.024M).
With only two full crops of foals so far in the racing arena, it's a "remarkable" feat, according to Simon Mockridge, the director of Frankel's Banstead Manor Stud, part of Prince Khalid bin Abdullah's Juddmonte Farms breeding operation.
"Any horse that can go to Royal Ascot, the most competitive race meeting in the world in a fabulous location, and have three winners and seven placed horses is quite extraordinary," he told CNN Sport.
Tom Goff, director of leading consultancy Blandford Bloodstock, added: "Frankel is rock 'n' roll."
Meghan and Harry arrive at Royal Ascot with the Queen
The Duke and Duchess of Sussex arrived at Royal Ascot in a horse-drawn carriage, part of the famous royal procession that begins each day of racing at the Berkshire course west of London. The prestigious event is the jewel in the crown of the British Flat racing calendar.
Harry and Meghan, who were married at Windsor Castle last month, shared a carriage with the Duke and Duchess of Wessex.
Queen Elizabeth II is a big horse racing fan and never misses Royal Ascot. The tradition of riding by carriage through the Golden Gates and up Ascot's Straight Mile to open each day of racing was first introduced by King George IV in 1825.
Prince Harry, the Duke of Sussex, sat next to his uncle, the Earl of Wessex, in the third carriage in the royal procession. During the five-day event, top hats and tails remain compulsory in parts of the course.
The Duchess of Sussex opted for a cream dress. Royal Ascot is known for high fashion, designer hats and pageantry. Horse racing has been held at the famous Berkshire course since 1711.
Harry and Meghan were all smiles as they arrived at the iconic Berkshire racecourse.
Prince Charles, the Prince of Wales, and Camilla, Duchess of Cornwall, rode in the second carriage during the royal procession.
This year Queen Elizabeth wore a bright yellow outfit for the first day of Royal Ascot.
Prince Harry and Meghan presented the trophy to jockey Frankie Dettori following his win on Without Parole in the St James's Palace Stakes, one of the feature races on day one at Royal Ascot.
Poet's Word defeated hot favorite Cracksman in the feature Prince of Wales's Stakes on day two of Royal Ascot. The victory gave trainer Michael Stoute his 76th winner in all at the royal meeting, beating the mark of the late Henry Cecil, trainer of Frankel.
Security was the watchword at this year's meeting after several recent incidents of unruly behavior at UK racecourses.
The Queen, who has been going to Royal Ascot since 1945, chose pink for Ladies' Day Thursday.
Veteran Dettori won the feature Ascot Gold Cup on Stradivarius on day three -- Ladies' Day -- at Royal Ascot. It was the Italian's sixth Ascot Gold Cup victory and 60th win at the meeting in all.
The Queen presented the silverware to the colorful Dettori as well as winning trainer John Gosden.
Royal Ascot is a pageant of high fashion, couture and world-class millinery, with Ladies' Day as the crowning glory.
Royal Ascot is the place to be seen and show off your outfit on Ladies' Day.
This hat is quintessentially Ladies' Day at Royal Ascot.
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Frankel was one of the most dominant and feted racehorses of recent times with 14 straight wins, including the 2,000 Guineas in 2011. Despite not running in the Epsom Derby, he amassed nearly $4 million) in prize funds.
The pride of the late trainer Sir Henry Cecil, Frankel retired to stud in Suffolk in 2013 with an initial fee of $165,00 per cover, based on his immaculate racing pedigree.
That has risen to $231,000 largely off the back of the Cracksman, who was third in the Derby and landed Frankel a first Group 1 winner with victory in the Champion Stakes at Ascot in October 2017, finishing the season as the world's top-rated three-year-old.
Although Cracksman only finished second in the Prince of Wales' Stakes at Royal Ascot this year, another promising son Without Parole clinched the highly prized St James' Palace Stakes -- "arguably one of the top races for three-year-olds in the world," according to Goff -- while Monarch's Glen and Baghdad also won during the week.
Frankie Dettori rode Frankel's son Without Parole to victory at Royal Ascot.
Elite company
Frankel is still chasing a first European Classic winner from his progeny, although his daughter Stirring Soul won the Japanese Oaks in 2014 and Rostropovich was also second in the recent Irish Derby.
But in terms of the percentage of Group race winners to foals, Frankel is in hot pursuit of legendary stallions such as Galileo and Dubawi at the same stage of their careers.
"Horses that can return 10 percent are absolutely elite and he is currently at nine percent. He's up there with the very elite... and that's just with two and a half crops," added Mockridge.
"Certainly in Europe there are only two horses that can compare to him -- his own father Galileo and Dubawi.
"Statistically, he's above Dubawi and just behind Galileo and leading sires like Tapit in the US and Deep Impact in Japan."
Camilla, Duchess of Cornwall, met Frankel and stallion man Rob Bowley at Banstead Manor Stud in 2017.
'Most exciting young sire'
Looking at prize money from stakes winners -- Group 1, 2 and 3 races and listed races -- Frankel is second only to his father in 2018 with $2.3M from seven winners compared to Galileo's $3.6M from 17, according to statistics from the Racing Post.
New Approach, sire of Derby winner Masar, is third and Camelot, father to Irish Derby champion Latrobe, is fourth. Only Dubawi (in sixth) has as many winners as Frankel.
"On the evidence both before and after Royal Ascot, Frankel is probably the most exciting young sire on the sire list in Great Britain and Ireland," added Goff.
Galileo, standing at the Coolmore Stud in Ireland, has been Europe's champion sire for nine of the last 10 years. His success is such that his stud fees are undisclosed, although reports suggest the figure is in excess of $584,200.
A Galileo filly out of multiple winner Dank achieved $5.6M at last October's Tattersalls yearling sales.
Dubawi, who stands at Dalham Hall Stud, part of Sheikh Mohammed's Godolphin operation, was the fastest sire to 50 Group race winners and commands a fee of $330,000 per time.
The stud team aims to get about 140 mares in foal a year, and in 2017 his crop of yearlings averaged $1.15M each.
Frankel's yearlings went for an average of $661,000 in 2017 based on the 25 that were sold.
The Classics
The five Classics form the bedrock of the British Flat racing season and are the benchmark on which careers and legends are based. The Derby (pictured), the Oaks, the 2,000 and 1,000 Guineas and the St. Leger identify the best thoroughbred three-year-old colts and fillies of their generation.
The Classic season begins with the 2,000 Guineas over Newmarket's Rowley Mile in May. First raced in 1809, it's a straight mile dash on turf for colts and fillies. The race is the first leg of the Triple Crown, alongside The Derby and the St. Leger, but the feat is rarely attempted.
The great Frankel, ridden by Tom Queally, was the runaway 2,000 Guineas winner in 2011 during his 14-win unbeaten career.
Saxon Warrior gave Irish trainer Aidan O'Brien a record ninth win in the race in 2018. The jockey was O'Brien's son Donnacha.
The 1,000 Guineas is the fillies-only equivalent, raced the following day over the same Rowley Mile course at Newmarket in Suffolk, England. Billesdon Brook, trained by Richard Hannon, became the highest-priced winner in the race's history when she won at 66-1 in 2018.
The 1,000 Guineas is the fillies-only equivalent, raced the following day over the same Rowley Mile course at Newmarket in Suffolk, England. O'Brien's Winter won in 2017.
The Oaks is the fillies' equivalent of The Derby, a mile-and-a-half test over the undulating Downs of Epsom, south of London. The Oaks comes on day one of the Derby Festival. Frankie Dettori rode Enable (pictured) to victory in a record time in 2017 to scupper O'Brien's quest to win all five Classics.
The Derby began in 1780, since when it has always been a highlight of the cultural and sporting calendar and attracts vast crowds of racegoers from every level of British society. Notable racing fan The Queen is a regular visitor.
The Epsom racecourse for The Oaks and The Derby features a long climb out of the start, a sweeping left-hand turn around Tattenham Corner, a downhill straight and a stiff rise in the last few hundred yards.
Wings Of Eagles (left, pink cap), ridden by Padraig Beggy and trained by O'Brien, was the 40-1 outsider who clinched Britain's richest race in 2017. The Derby was worth £1.625 million in 2017 with the winner receiving £921,500.
Wings of Eagles joined an illustrious list of Derby winners which includes superstars such as Sea Bird, Nijinksy, Mill Reef, Nashwan, Shergar (who won by a record 10 lengths) and Galileo. Legendary jockey Lester Piggott won a record nine Derbys between 1954 and 1983.
The area known as the Hill offers free spectating and multiple other attractions for Derby goers.
It's a far cry from the Royal Box, from where generations of British monarchs have watched the race unfold. (From left to right: King George VI, Princess Elizabeth (later Queen Elizabeth II), Queen Elizabeth (later Queen Mother) and the 16th Duke of Norfolk pictured at Epsom in 1948).
Back in the 1920s, a day out at The Derby was a must for many Londoners.
The St. Leger, first raced in 1776, is the oldest of the five Classics and takes place at Doncaster in the north of England in September. It's also the longest of the Classics at a mile-and-three-quarters. Ryan Moore rode the colt Capri (center) to victory for O'Brien last year.
"He has certainly lived up to his billing. He's doing extremely well at stud and his progeny is starting to make enormous numbers at sales," adds Goff.
Further success, and perhaps a Classic victory, could see those numbers skyrocket.
"He's not far away from winning one, it's just timing," says Mockridge. "Of course, going forward it's important for any stallion to have Classic winners. That's how they are judged."
Barring inherent risks of injury or illness, Frankel the stud looks to be on a trajectory every bit as impressive as Frankel the race horse.
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"He was a brilliant race horse, he's brilliant at what he does in the breeding environment, he's an extremely fertile stallion and he's incredibly well-mannered and uncomplicated," says Mockridge.
"We're very fortunate to have him."