Undefeated favorites won both Group 1 races for 2-year-olds Saturday at Newmarket in England, but Reckless Abandon’s victory in the Middle Park Stakes required far more grit than it took for Dawn Approach to win the Dewhurst Stakes.

Well backed Moohaajim appeared to be slightly in front of Reckless Abandon perhaps 50 yards before the finish of the six-furlong race, and he was clearly in front again not far past the finishing post, but at the wire it was Reckless Abandon by a neck, winning for the fifth time without a defeat.

Camelot, the winner of three classic races in England and Ireland earlier this year, was recovering on Friday from a colic operation conducted on Thursday, according to a statement released on Twitter by Coolmore Stud.

Camelot was taken to a veterinary clinic near trainer Aidan O’Brien’s base in Ireland on Thursday for “exploratory colic surgery,” according to Coolmore. Friday, Coolmore updated Camelot’s condition, stating: “Camelot’s colic surgery went well and he is doing great. The veterinary team [is] delighted with his progress.”

Camelot, the winner of three classic races who finished seventh on Oct. 7 in the Prix de l'Arc de Triomphe, underwent colic surgery Thursday night.

Camelot's owners, Coolmore, revealed Camelot's circumstances Thursday on Twitter. Camelot "was admitted to Fethard Veterinary Hospital this evening and underwent exploratory colic surgery," Coolmore's tweet said. "Obviously it's still very early days, but a further bulletin will be released in the morning."

Gentildonna can sweep the Triple Crown for Japan’s 3-year-old fillies with a win in Sunday’s $2.3 million Shuka Sho at Kyoto Racecourse in Japan.

By Deep Impact, Gentildonna has won her last three starts – the Japanese 1000 Guineas in April, the Japanese Oaks in May, and the Rose Stakes on Sept. 16. Trained by Sei Ishizaka, Gentildonna is part of an expected field of 18 in the Shuka Sho, which is run over about 1 1/4 miles on turf on a right-handed course.

Two-year-olds – principally the undefeated Dawn Approach – are in the spotlight Saturday at Newmarket in England.

Dawn Approach, 5 for 5 to start his career, takes on just five rivals in the Group 1 Dewhurst Stakes over seven furlongs. The Group 1 Middle Park, a six-furlong dash, drew a field of 10, with Reckless Abandon the likely favorite.

[bc_video_id:265001:]Gordon Lord Byron continued his rise through the European sprint division with a career-best performance in Sunday’s Group 1 Prix de la Foret over seven furlongs at Longchamp Racecourse.

Ridden by William Buick, Gordon Lord Byron stalked the pace for the first half-mile, took the lead with a furlong remaining and won by 1 1/2 lengths over 10-1 Pentinent. The 24-1 shot Kendam finished third in the field of 11. Mashoora, the 5-2 favorite, finished fifth.

[bc_video_id:264999:]Ridasiyna rebounded from her first career defeat at Deauville, France, in August to score a 12-1 upset in Sunday’s Group 1 Prix de l’Opera at Longchamp Racecourse in Paris.

Owned by The Aga Khan, Ridasiyna, 3, won her first three races from May to July, but was fifth in the Group 2 Prix de la Nonette in August. In the Prix de l’Opera over 1 1/4 miles, Ridasiyna closed from the back of the field of 13 fillies and mares to win by 3 1/2 lengths over Izzi Top, the 9-5 favorite. Giofra (9-2) finished third, a short neck behind Izzi Top.

The Prix de l’Arc de Triomphe was going just the way the connections of Japanese star Orfevre must have dreamt. Moving fluidly from the back of an 18-horse field, Orfevre swept past rival after toiling rival, taking a clear lead into the final furlong of Sunday’s race at Longchamp. The race was his – and then it wasn’t. Solemia, a 40-1 shot Orfevre already had blown by in midstretch, kept staying on, staying on, and the unheralded 4-year-old filly tagged Orfevre in the shadow of the finish to score a shocking neck win.

[bc_video_id:264998:]Heavy going and his first trip away from England could not slow the momentum of talented 2-year-old Olympic Glory, who captured the Group 1 Prix Jean-Luc Lagardere by 1 1/4 lengths over the talented filly What a Name on the Arc undercard Sunday at Longchamp.

Cirrus des Aigles won the Group 2 Prix Dollar at Longchamp racecourse in Paris on Saturday as a prep race for a defense of his title in the Group 1 Champion Stakes at Ascot, England, on Oct. 20.

Despite his status as defending champion, Cirrus des Aigles will be far from favored in the Champion Stakes. He will be taking on the undefeated superstar Frankel.