Calumet Farm in Lexington, Ky., released the 2018 advertised fees for its 22-horse stallion roster, led once again by English Channel at $25,000 and featuring four new additions.

The fee for English Channel, a 15-year-old son of Smart Strike, remains unchanged from the previous season. His runners in 2017 are led by Grade 1 winner Johnny Bear, Grade 2 winner Heart to Heart, and Grade 3 winners Just Howard, Voodoo Song, and Irish Strait. He also sired Channel Maker, winner of the Breeders’ Stakes, a Canadian classic.

Ocala Stud in Ocala, Fla. released the advertised fees for its 2018 stallion roster, co-headlined once again by Uncaptured and The Big Beast, who will each stand for $6,000.

Uncaptured, a 7-year-old son of Lion Heart, was North America’s most active stallion by mares bred in 2017 among those standing outside of Kentucky, covering 140 mares. His first foals will be 2-year-olds of 2018.

The Big Beast’s first foals are weanlings of 2017. The 6-year-old son of Yes It’s True won the Grade 1 King’s Bishop Stakes at 3, and ran second in a pair of Grade 1 races at 4.

The newly merged Irish Hill & Dutchess Views Stallions LLC has released the stud fees for its first season in partnership, led by Bellamy Road and Big Brown at $6,000 each.

The stallions are located at the Irish Hill property in Stillwater, N.Y., outside of Saratoga Springs.

War Envoy and Saburo, a pair of runners owned by Ruis Racing, will enter stud at Tommy Town Thoroughbreds in Santa Ynez, Calif., for the 2018 breeding season.

Saburo will stand for an advertised fee of $3,000. The 3-year-old Medaglia d’Oro colt was purchased by Mick Ruis of Ruis Racing for $600,000 at last year’s Fasig-Tipton Midlantic 2-year-olds in training sale, and was unplaced in two starts.

Castleton Lyons in Lexington, Ky., released its advertised stud fees for the 2018 breeding season, with both Gio Ponti and Justin Phillip standing for $5,000.

The fall sale season in Kentucky is the first serious measuring stick for the commercial viability of a new stallion’s foals at auction, and gives buyers multiple opportunities to inspect and purchase weanlings on the public market.

Although established stars Medaglia d’Oro and More Than Ready both sired two of this year’s Breeders’ Cup winners, no stallion benefited more from the event than Quality Road.

Quality Road’s daughter Caledonia Road probably earned a champion 2-year-old filly Eclipse statuette with her victory in the Juvenile Fillies, and another daughter Abel Tasman almost certainly clinched a 3-year-old filly championship with her closing second to the older Forever Unbridled in the Distaff.

Tapit will continue to stand for an advertised fee of $300,000 in 2018, continuing his reign as the most expensive stallion in North America.

The 16-year-old son of Pulpit stands at Gainesway Farm in Lexington, Ky., and has maintained his $300,000 fee since the 2015 season. He is followed on the list of North America's most expensive sires by War Front and Medaglia d'Oro, who will command fees of $250,000 at Claiborne and Darley, respectively.

Kobe’s Back, a multiple Grade 2 winner, has been retired from racing and will debut for the 2018 breeding season at Bonita Farm in Darlington, Md., for an advertised fee of $3,000.

The 6-year-old son of Flatter finished his on-track career with five wins in 26 career starts for earnings of $1,116,595. His most notable victories came in the Grade 2 San Carlos Stakes, San Vicente Stakes and Palos Verdes Stakes, the Grade 3 Commonwealth Stakes, and the non-graded Willard L. Proctor Memorial Stakes.

With Distinction, a regular presence near the top of Florida’s sire lists, has been sold to stand in Korea, beginning with the 2018 breeding season.

The 16-year-old son of Storm Cat arrived in Korea on Nov. 3, and previously resided at Hartley/De Renzo Thoroughbreds in Florida, where he was advertised for $7,500 in 2017.