Nitrogen

Eclipse Award-winner Nitrogen (Medaglia d'Oro) was one of two Mark Casse-trained runners to complete major preparations for the April 11 $1.25 million GI Apple Blossom Handicap with a five-furlong work over a fast track Wednesday morning under exercise rider Autumn Lavertu. Last year's top 3-year-old filly was timed in 1:01 (3/11) following splits of :25.20 for her opening quarter-mile and :37.60 for three furlongs. She galloped out six furlongs in 1:13.60. Trained by dual Hall of Famer Mark Casse, Nitrogen looks to rebound from a third-place finish in the $400,000...

Champion Nitrogen (Medaglia d'Oro) returned to the work tab Sunday morning at Oaklawn with a bullet half-mile work over a fast track for dual Hall of Fame trainer Mark Casse. Nitrogen, under two-time Oaklawn riding champion Cristian Torres, was clocked in :46.40, fastest of 56 published works at the distance. Nitrogen was breezing for the first time since finishing third in Mar. 7 GII Azeri Stakes. Last year's champion 3-year-old filly remains on target for the Apr. 11 Apple Blossom Handicap. "Nitrogen looked like the old Nitrogen," said assistant trainer...

Elite winners are always cause for celebration. With racing at the highest levels quickly ramping up for 2026, we continue to spotlight some of the special Grade I producers of the last several months. Up today, we get a glimpse into a quartet of mares who produced homebred stars. Stormy Welcome, dam of Raging Sea "Great families might sleep, but they don't die, and she's a great example of that," said Mill Ridge's Price Bell last summer when musing over the unraced Stormy Welcome (Storm Cat), a now-20-year-old mare whose ninth...

The splendid Splendora set the pace, took the GI B. Wayne Hughes Beholder Mile at Santa Anita Park and made headlines. Now, let's get to this week's rankings: 5. REGALED, OP, 3/7, GII Azeri Stakes, 1 1-16 miles (VIDEO) Beyer Speed Figure- 93 (2nd) (m, 5, by Mohaymen-Ascot Walk, by Daaher) O-Ribble Farms and Front Page Equine. B-Chris Baccari (Ky). T-Whit Beckman. J-J.D. Ramos. Her come-from-the-clouds style is probably more suited to 1 1/8 miles than the Azeri's 1 1/16 miles, but she made up four-plus lengths in the final...

All eyes may have been on Eclipse champion 3-year-old filly Nitrogen (Medaglia d'Oro) in Oaklawn's GII Azeri S. Saturday, but it was Majestic Oops (Majestic Harbor) who sprung the upset for a career high. Racing in the colors of Medallion Racing, Evan Trommer, Agave Racing Stable and Sheila Regan, Majestic Oops left the gate sharply before taking back on the inside behind La Cara (Street Sense). She waited in third with Nitrogen to her outside behind La Cara's :23.78 and :47.17 fractions, then tipped out coming off the turn as...

With Eclipse Award-winner Nitrogen (Medaglia d'Oro), who will be heavily favored in Saturday's GII Azeri Stakes at Oaklawn, having won her 2026 debut in the GIII Bayakoa Stakes, D.J. Stable could well be on its way to another successful year. But not everything has gone right in 2026 for the Green family and its stable. Two of its most prominent horses--Sandman (Tapit) and Ewing (Knicks Go)--have been surprisingly disappointing in recent races. In hopes of getting them back on track, the stable will be sending both to Mark Casse's farm...

Mark Casse is among the hottest trainers in America, was recently named Chairman of the Board of the Ocala Breeders' Sales Company, and continues to help lead the fight to save racing in South Florida. So, there was plenty to talk about when the Hall of Fame trainer joined this week's TDN Writers' Room Podcast presented by Keeneland. Casse was the Gainesway Guest of the Week. Casse will head into the weekend with 17 wins from 38 starters at Oaklawn, good for a win rate of 45%. He bolstered his...

Trainer Mark Casse joined this week's TDN Writers' Room to recap a big weekend with GIII Southwest Stakes winner Silent Tactic and fan-favorite filly Nitrogen. He also discusses the recent announcement of him being named chairman of OBS.

Big returns to the races was the hallmark of many of the five fleet fillies this week, but it wasn't the 2025 champ who took down the number one spot. 5. ME AND MOLLY McGEE, SA, 2/7-6th, 7 furlongs (Video) Beyer Speed Figure-93 (2nd). (f, 4, by Vekoma-Molly McGee, by Quality Road) O-Exline-Border Racing, Aaron Kennedy, Mike Burns, Susanna Wilson and Dan Hudock. B-Four Pillars Holdings (Ky). T-Peter Eurton. J-Hector Berrios. This was a best-case-scenario return after she was vanned off the Saratoga track following the GI Test Stakes last...

John Oxley's Silent Tactic (Tacitus) will likely make his next start in the Mar. 1 GII Rebel Stakes at Oaklawn Park following his upset victory in the GIII Southwest Stakes Friday in Arkansas, trainer Mark Casse confirmed. The Southwest was Casse's third consecutive victory in a Kentucky Derby qualifying race at Oaklawn, following last season's GI Arkansas Derby with Sandman (Tapit) and the Jan. 3 Smarty Jones Stakes with Strategic Risk (Noble Bird). Silent Tactic closed to finish second in the 1 1/16-mile Smarty Jones. "The thing, too, it wasn't...

The betting public thought it would be a welcome parade, and Nitrogen (Medaglia d'Oro) did not let them down, striding home much the best in the GIII Bayakoa Stakes to kick off her 2026 campaign at Oaklawn. The Mark Casse star needs little introduction, but her record bears repeating: the daughter of the now-pensioned Medaglia d'Oro breathes rarified air as one of few horses who can claim Grade I wins/placings on two surfaces. As part of her nine-race championship campaign last season, she came a nose shy of winning the...

This wasn't the plan. Jon Green, the general manager of D.J. Stable, and trainer Mark Casse were ready to give 3-year-old filly champion Nitrogen (Medaglia d'Oro) a nice break after her second-place finish in the GI Longines Breeders' Cup Distaff. But just 67 days after her last race, she will go in Saturday's GIII Bayakoa Stakes at Oaklawn, where she is the 4-5 morning-line favorite. Why? Because Nitrogen was telling Casse that she had had enough of taking it easy. "The game plan, initially, was that when she was done...