The Wonder was a "tall, lengthy" dark brown horse with no white markings bred in France by Alain du Breil, the president of the Societe de Steeple-Chases, the governing body of French jump racing. He was the only horse of any consequence sired by Wittgenstein, a Florida-bred stallion who won the Critérium de Maisons-Laffitte in 1973. The Wonder was the first foal of The Lark, the only Thoroughbred mare owned by du Breil. She later produced the Badener Sprint-Cup winner Areias. The Wonder originally raced in the colours of du Breil's wife and was trained by Jacques de Chevigny.
Racing career
1980: two-year-old season
After finishing fourth in a race over 1100 metres on his racecourse debut, The Wonder won a race over 1400m at Évry Racecourse and the Prix des Foals at Deauville Racecourse in August. The colt was then moved up in class and distance for the Group ThreePrix Saint-Roman over 1800m at Longchamp Racecourse on 4 October. Ridden by Alain Lequeux he finished strongly to finish third of the eight runners, beaten a neck and a head by Mariacho and Arc d'Or. Two weeks later, The Wonder was moved up to 2000m for the Group Three Prix de Conde on soft ground at Longchamp. Ridden by Yves Saint-Martin he was in fifth place 150m from the finish but produced a strong late run on the inside to take the lead in the final strides and won by a neck from Ledmir. The Wonder ended his first season in the Criterium de Saint-Cloud on 17 November in which he was ridden by Alfred Gibert. Starting the 2.2/1 second favourite he took the lead 300m from the finish and won by a length from Mont Pelion. In their annual Racehorses of 1980, the independent Timeform organisation described The Wonder as a "stayer", who would require "at least a mile and a quarter" to show his best form.
1981: three-year-old season
On his three-year-old debut, The Wonder finished second to No Lute in the Prix Greffulhe over 2100m at Longchamp, but was awarded the race after the winner's post-race urine test showed traces of Nandrolone, an anabolic steroid. No Lute was cleared to run in the Prix Lupin on 17 May and beat The Wonder by three lengths. The Wonder moved up in distance to contest the Prix du Jockey Club over 2400m at Chantilly Racecourse on 7 June. Ridden by Lester Piggott he faded in the closing stages and finished tenth of the twelve runners behind Bikala. On 4 July, The Wonder was matched against older horses for the first time in the Group One Prix d'Ispahan over 1900m at Longchamp. Ridden by Lequeux, he started a 13/1 outsider in a field which included the Poule d'Essai des Poulains winner Recitation, the Poule d'Essai des Pouliches winner Aryenne, the Prix Jean Prat winner Cresta Rider, the Prix du Jockey Club runner-up Akarad and the improving ex-Italian-trained Northjet. The Wonder produced an impressive performance to record his first success at the highest level, winning by two lengths from Northjet, with Cresta Rider three-quarters of a length away in third. The Wonder then contested France's two most important weight-for-age mile races, the Prix Jacques le Marois at Deauville and the Prix du Moulin at Longchamp. In the former race, he finished fifth in an exceptionally strong field behind Northjet, To-Agori-Mou, Kings Lake and Hilal. In the latter race he finished third beaten one and a half lengths and a nose by Northjet and Hilal. On his final appearance of the season The Wonder was sent to England to contest the Champion Stakes at Newmarket Racecourse on 17 October. Ridden by Gibert, he started at odds of 9/1 despite reports that he had been performing poorly in training. He finished sixth of the sixteen runners behind Vayrann, ahead of many good horses including Master Willie, Madam Gay and Kirtling.
1982: four-year-old season
In 1982, The Wonder entered the ownership of the Marquese de Moratalla, who was best known as an owner of steeplechasers such as The Fellow. He began his season in March when he was an easy winner of the Group Three Prix Edmond Blanc over 1600m at Saint-Cloud against moderate opposition. He finished fourth in his next two races including the Lockinge Stakes in England and then finished second to Al Nasr in both the Prix Dollar and the Prix d'Ispahan. In July he again failed to reproduce his best form in Britain, finishing unplaced behind On The House in the Sussex Stakes at Goodwood Racecourse. On 15 August, The Wonder was ridden for the first time by the Irish jockey Pat Eddery in the Group One Prix Jacques le Marois at Deauville. He started at odds of 6.2/1 in a field which included Green Forest, Zino, Melyno, Noalcoholic and Exclusive Order. Eddery held up the colt in the early stages before producing a strong run to take the lead in the last 200m and won by three-quarters of a length from Green Forest, with Zino a further three-quarters of a length back in third. In September, The Wonder finished second to Green Forest in the Prix du Moulin at Longchamp and on his final appearance he finished second to the Irish-trained three-year-old Pas de Seul in the 1400m Prix de la Foret in October. In the latter race Eddery was criticised for making his challenge too early, and there was some speculation that he had mistakenly timed his run for the first winning post rather than the second. In late 1982, The Wonder was being advertised as a breeding stallion for 1983, standing at the Haras de Clarbec, but a change of plan saw him sent to continue his racing career in the United States, where he was trained by Charles Whittingham.
1983: five-year-old season
The Wonder was based at Santa Anita Park, in the early part of 1983, and opened his American career with a three and a half length win in an allowance race on 27 February. A week later he was moved up in class and carried top weight of 124 pounds the Grade ISanta Anita Handicap on dirt, but finished thirteenth behind Bates Motel. On 17 April The Wonder recorded his first major success in the United States when he won the nine furlong San Bernardino Handicap, beating Konewah and the Strub Stakes winner Swing Till Dawn. The horse then moved to Hollywood Park Racetrack and won the Grade I Century Handicap on Turf on 7 May, ridden by Bill Shoemaker. A month later at the same course, The Wonder contested the Grade I Californian Stakes. He was in last place, more than fifteen lengths behind the leaders in the early stages, but produced a strong late run to win by a nose from Prince Spellbound with Poley in third place. The Wonder's winning run came to an end when he finished seventh, as the 11-10 favourite, behind John Henry in the American Handicap on 4 July. The horse returned to form in August to finish second to Bates Motel in the San Diego Handicap, but then finished unplaced behind Tolomeo in the Budweiser Million later that month. On his final racecourse appearance he finished sixth behind Bel Bolide in the Carleton F. Burke Handicap at Santa Anita in October.
Assessment
In 1980, the independent Timeform organisation gave The Wonder a rating of 123, eleven pounds below their top-rated two-year-old Storm Bird. In the official International Classification he was rated nine pounds behind Storm Bird. In 1981, Timeform gave the colt a peak annual rating of 129, eleven pounds below Shergar: he was rated the ninth-best European three-year-old in the International Classification. In 1982 he was rated 127 by Timeform and was rated the eighth-best older horse in Europe in the International Classification.