The results of two races on Sunday at Churchill Downs shook up the latest Rookie Rankings.

Since the Rookie Rankings rate 2-year-old Thoroughbreds based on their potential to win the 2027 Kentucky Derby, the Grade 3 Street Sense Stakes — a Road to the Kentucky Derby qualifier held over 1 1/16 miles at Churchill Downs — unsurprisingly affected the rankings.

Mystik Bayou, ranked No. 4 last week, competed in the Street Sense just 22 days after posting an eye-catching maiden win at Belmont Park. It’s possible he regressed while running back on short rest, as he could only finish third, beaten by 5 1/4 lengths. But Mystik Bayou also had to wait in traffic while eager to run around the far turn, which didn’t help his chances.

Jas wins Street Sense Stakes (Eclipse Sportswire)

We believe this is an effort Mystik Bayou can build upon. Don’t forget, when Mystik Bayou’s half-brother (same dam [mother], different sire [father]) Mystik Dan was 2 years old, he finished fifth in an allowance optional-claiming race when running back 13 days after an impressive maiden win. That defeat didn’t stop Mystik Dan from rebounding as a 3-year-old to win the 2024 Kentucky Derby.

As a result, we’ll keep Mystik Bayou in the Rookie Rankings for now, albeit while dropping him to the No. 10 spot. Just outside the Top 10 cutoff is where we’ll place Street Sense winner Jas, a promising son of Triple Crown winner Justify with the pedigree to excel at the Kentucky Derby’s 1 1/4-mile distance.

A one-mile maiden special weight race held about half an hour after the Street Sense likewise impacted the Rookie Rankings. Fools Rush In, from the barn of Kentucky Derby-winning trainer Brad Cox, pressed quarter-mile pace fractions of :23.29 and :46.46 in second place before taking over and finishing strongly to dominate by 4 1/4 lengths in the sharp time of 1:36.29.

This eye-catching performance suggests Fools Rush In could develop into a serious Kentucky Derby contender, which is why he’s debuting at No. 5 in the Rookie Rankings. His win also flattered Endrush, who finished four lengths ahead of Fools Rush In when the two of them debuted in a six-furlong maiden special weight race on Sept. 10 at Churchill. As a result, Endrush is advancing to No. 3 this week.

Here’s how the complete Rookie Rankings shape up:

1. U. S. S. Valor: Trainer Shug McGaughey has saddled eight horses in the Kentucky Derby, and half of them finished in the top three, including 2013 winner Orb.

Owner: Team Valor International

Trainer: Shug McGaughey

Last Race: 1st, Grade 1 Champagne Stakes, Oct. 3

Hughes wins Del Mar Futurity (Eclipse Sportswire)

2. Hughes: Completed his major preparations for the Grade 1 FanDuel Breeders’ Cup Juvenile Presented by TAA when working half a mile in :47.20 on Sunday at Churchill Downs.

Owner: Front Row Club, Starlight Racing, Madaket Stables, Stonestreet Stables, Bashor Racing, Albaugh Family Stables, Robert E. Masterson, Golconda Stable, Waves Edge Capital, and Catherine Donovan

Trainer: Bob Baffert

Last Race: 1st, Grade 1 American Pharoah Stakes presented by DK Horse, Oct. 3

3. Endrush: The recent victory by Fools Rush In indicates Endrush beat quality competition in his debut.

Owner: Green Lantern Stables

Trainer: Eddie Kenneally

Last Race: 1st, Maiden Special Weight, Sept. 10

Coach Pope wins Sept. 12 race at Churchill Downs (Coady Media)

4. Coach Pope: He’s pre-entered in the Breeders’ Cup Juvenile and geared up for the race by clocking five-eighths of a mile in 1:02.20 on Saturday at Keeneland.

Owner: Gainesway Stable, Shamrock Stables, and Michael J. Mackin

Trainer: Kenny McPeek

Last Race: 2nd, Grade 1 Claiborne Breeders’ Futurity, Oct. 3

5. Fools Rush In: He clocked the final quarter-mile of his maiden win in the solid time of :24.76.

Owner: Jackpot Farm and Spendthrift Farm

Trainer: Brad Cox

Last Race: 1st, Maiden Special Weight, Oct. 25

Q B Rocket wins Aug. 15 race at Saratoga (Coady Media)

6. Q B Rocket: He wasn’t pre-entered in the Breeders’ Cup Juvenile, so it looks like he’ll target a different race for his third start.

Owner: Spendthrift Farm and Frank Fletcher Racing Operations

Trainer: Brad Cox

Last Race: 3rd, Grade 1 Breeders’ Futurity, Oct. 3

7. American History: Worked half a mile in :48.60 on Friday at Keeneland as he gears up for the Breeders’ Cup Juvenile.

Owner: WinStar Farm, First Go Racing, and CHC

Trainer: Todd Pletcher

Last Race: 1st, Grade 1 Breeders’ Futurity, Oct. 3

8. American Soul: His dam, Exotic West, showed stamina when winning the 1 1/8-mile Top Flight Invitational Stakes, which bodes well for American Soul’s Kentucky Derby potential.

Owner: Yoshizawa Holdings Co.

Trainer: Yoshito Yahagi

Last Race: 1st, Kyoto Newcomer Maiden Special Weight, Oct. 12

9. Salahudin: The last Breeders’ Cup Juvenile pre-entrant in the Rookie Rankings worked a fast half-mile in :47.00 on Sunday at Churchill Downs.

Owner: Zedan Racing Stables

Trainer: Bob Baffert

Last Race: 1st, Grade 3 Iroquois Stakes, Sept. 12

10. Mystik Bayou: An unencumbered trip and more time between starts could potentially help him rebound next time.

Owner: Four G Racing, Lance Gasaway, and Daniel Hamby III

Trainer: Kenny McPeek

Last Race: 3rd, Grade 3 Street Sense Stakes, Oct. 25