It’s rematch time Sunday in the $17,950 feature race for $32,000/$25,000 claiming fillies and mares at six furlongs.

River of Aces, Stephanie Plum and Tabled With Gold-first, second and third in a similar race two weeks ago*square off again in Sunday’s ninth race.

A 5-year-old Washington-bred mare by Sam’s Ace, River of Aces is 6-1-1 in 13 career starts for trainer Charles Essex, and she’s nearly unbeatable when she makes the early lead*a scenario that seems likely again Sunday.

Stephanie Plum, 5-4-2 in 16 lifetime starts, won four races last season and is a formidable competitor for veteran trainer H.R. Pat Mullens. In the April 12 race, she pressed River of Aces from flag fall to finish, but came up a half-length short as River of Aces ran 5 1/2 furlongs in 1:03.32. Perhaps an extra half-furlong will help Stephanie Plum.

Trainer Roy Lumm is off to a great start, compiling a 2-1-1 record with his first five starters including a third by Tabled With Gold, who finished a head back of Stephanie Plum on opening day. The 4-year-old California-bred has never run a bad race, posting a 2-2-2 record in six starts topped by a head victory over 11-time winner Champali Lace in the $12,000 Hit a Star starter allowance last September.

Perfect Pie is 8-9-6 in 32 starts at Emerald Downs and the 7-year-old beat River of Aces at this same condition last July. Lasting Rose is a talented 4-year-old that defeated older fillies and mares last year in a one-mile race. Smokin’ Grey is a 5-year-old trained by Frank Lucarelli with a 3-0-0 record in four starts at six furlongs. Miss Communication, a new shooter for trainer Jeff Metz, is a 6-year-old with five wins and over $119,000 in earnings, but appears to favor races around two turns.

The field for Sunday’s $17,950 feature race (from the rail, out): Lasting Rose, Anne Sanguinetti, 115 lbs; Tabled With Gold, Gallyn Mitchell, 115; River of Aces, Eliska Kubinova, 119; Perfect Pie, Jennifer Whitaker, 115; Stephanie Plum, Leonel Camacho-Flores, 115; Miss Communication, Rocco Bowen, 119; Smokin’ Grey, Leslie Mawing, 119.

NOTES: Weekly honors: Trainer-Frank Lucarelli (10-5-2-2); Jockey-Leslie Mawing (9-4-0-5); Owner-W. Quinn Chin (3-1-1-1); Groom-Mauro Avila (trainer Robbie Baze); Washington-bred-Stikine Slough (Bar C Racing Stables Inc). . .Scat Daddybaby earned a career-high 84 Beyer for last Sunday’s $21,625 allowance victory in 1:08.20 for six furlongs. . .Mebossman, runner-up to Del Rio Harbor in the 2013 Gottstein Futurity, is among nine 3-year-olds and up entered in Sunday’s maiden special weight with a $17,850 purse. Royal Tale, second to Prayer for Da Bric opening weekend, and Calculated Chaos, fifth in the 2012 Barretts Juvenile, also are entered in the 5 1/2-furlong dash. . .Southern Solution, one of only two horses to win five races at Emerald Downs in 2013, makes his 2014 debut for trainer Roy Lumm in Sunday’s eighth race for $15,000 older claimers. . .Trainer Jeff Metz has plenty of action again this weekend with 10 horses entered Saturday – including multiple entrants in races 4, 5 and 9 – and four entered Sunday. Through four days of racing, Metz is 10-5-2 in 21 starts and Lucarelli is 8-2-5 in 17 starts. . .Rocco Bowen, who had one riding triple last year, already has three this season and leads Isaias Enriquez 10-7 atop the jockeys’ standings. . .Make Some Noise, the first foal out of Emerald Downs’ stakes winner Kissntheboysgoodby, debuts in Saturday’s ninth race for $7,500 maiden claiming 3-year-old fillies. . .Santa Anita Park opens its new spring/summer meet Friday with a special 3 p.m. post time. The opener, a $56,000 purse for 2-year-old fillies at 4 1/2 furlongs, is Southern California’s first juvenile race of 2014. . .Saturday is a big day for trainer Blaine Wright. At Santa Anita, Wright sends out Peter Redekops’s talented Alert Bay in the $250,000 Snow Chief Stakes for California-bred 3-year-olds at 1 1/8-miles on turf. A City Zip gelding, Alert Bay is 3-3-0 in six starts with earnings of $187,800. At Golden Gate Fields, Wright entered Chappell Alpine Farms’ Hudson Landing in the $100,000 San Francisco Mile (G3) on turf. Wright said he would be at Santa Anita, where Alert Bay faces seven foes including the multiple stakes-winning Tamarando. . .The Tim McCanna-trained Pepnic also runs in the San Francisco Mile, as does 2013 Longacres Mile nominee Summer Hit. . .Saturday is opening day at Churchill Downs with the $150,000 Derby Trial, a one-turn mile, serving as the traditional opening day feature race. Bob Baffert entered both Bayern and Chitu in the Grade 3 event. . . Chicks Special Angel, fourth at 3-to-5 in the $60,000 Bank of America Emerald Championship Challenge Stakes last year, notched an easy one-length victory in Sunday’s $1,800 Stakes Trial for older fillies and mares at Sun Downs. . .Hastings Racecourse celebrates opening day of its 51-day meeting Sunday with an eight-race card at 1:50 p.m. A stakes double-header kicks things off with the $50,000 George Royal for 3-year-olds and up at 6 1/2 furlongs and the $50,000 Brighouse Belles for older fillies and mares at 6 1/2 furlongs.