Ratings experts Timeform have compiled a guide to the highest-rated contenders at Royal Ascot this week.
Included below are the highest-rated horses in each category, the average rating of winners of Royal Ascot’s eight Group 1 races, horses with Timeform large Ps – indicating significant potential for improvement – and the highest-rated winners of the Group 1s in the last 10 years.
Highest rated horses by category at Royal Ascot
Highest rated older horses at Royal Ascot:
132 Daryz
130 Ombudsman
127 Almaqam
127 Trawlerman
127 Minnie Hauk (f)
126 Jan Brueghel
126 Notable Speech
125 Opera Ballo
123 Overpass
123 Ethical Diamond
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Highest rated three-year-olds at Royal Ascot:
131p Bow Echo
123 Gstaad
119p Talk of New York
118p Venetian Sun (f)
118 Precise (f)
118 Legacy Link (f)
117 True Love (f)
114p Sahara King
114 Puerto Rico
113p Charles Darwin
Highest rated two-year-olds at Royal Ascot:
102p Great Barrier Reef
100p Victorious (f)
99 Controlla (f)
98p Cut A Dash
98 Carry The Flag
97p Night In Vegas
96p Confucius
96p Wild Blossom (f)
95 Velozee (f)
94p Star Prospect, Sergei Diaghilev, Sun Goddess (f)
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Average Timeform performance ratings by race in last 10 years:
Queen Anne = 124
King Charles III Stakes = 125
St James’s Palace Stakes = 123
Prince of Wales’s Stakes = 127
Gold Cup = 125
Commonwealth Cup = 119
Coronation Cup = 119
Diamond Jubilee Stakes = 121
Timeform Large P horses*:
Royal Heritage (99P) – Coventry Stakes
Senorita Bonita (104P) – Queen Mary Stakes
Whispering Moon (83P) – Chesham Stakes
South Dakota (79P) – Chesham Stakes
Silent Beauty (104P) – Albany Stakes
Jolivette (96P) – Albany Stakes
Light of Dawn (96P) – Albany Stakes
Water To Wine (123P) – King Edward VII Stakes
*A Timeform large P indicates significant potential for improvement.
Tuesday
Queen Anne Stakes (master ratings):
126 Notable Speech
125 Opera Ballo
122p More Thunder
121 Damysus
121 Zeus Olympios
Best performances in last 10 years:
130 Baaeed
125 Ribchester
124 Circus Maximus
124 Palace Pier
124 Triple Time
King Charles III Stakes (master ratings):
123 Overpass
120 Night Raider
119 American Affair
119 Big Mojo
119 Rumstar
Best performances in last 10 years:
131 Lady Aurelia
131 Blue Point
131 Nature Strip
129 Blue Point
125 Battaash
St James’s Palace Stakes (master ratings):
131p Bow Echo
123 Gstaad
119p Talk of New York
114 Puerto Rico
108 Power Blue
Best performances in last 10 years:
127 Field of Gold
127 Poetic Flare
126 Palace Pier
125 Paddington
124 Barney Roy
Wednesday
Prince of Wales’s Stakes (master ratings):
132 Daryz
130 Ombudsman
127 Almaqam
127 Minnie Hauk (f)
118 Dancing Gemini
Best performances in last 10 years:
131 Crystal Ocean
129 Ombudsman
129 Mostahdaf
129 Poet’s Word
128 Lord North
Thursday
Gold Cup (master ratings):
127 Trawlerman
126 Jan Brueghel
123 Scandinavia
120 Rahiebb
120 Al Riffa
Best performances in last 10 years:
130 Subjectivist
127 Trawlerman
127 Stradivarius
127 Stradivarius
126 Kyprios
Friday
Commonwealth Cup (master ratings):
118p Venetian Sun (f)
113p Charles Darwin
112 Wise Approach
111 Division
110 Samangan
Best performances in last 10 years:
125 Advertise
125 Caravaggio
120 Dragon Symbol
120 Golden Horde
119 Perfect Power
Coronation Stakes (master ratings):
118 Precise
117 True Love
107p The Prettiest Star
105 Balantina
105 Timeforshowcasing
Best performances in last 10 years:
126 Alpha Centauri
123 Inspiral
121 Alpine Star
121 Winter
121 Qemah
Saturday
Queen Elizabeth II Jubilee Stakes (master ratings):
123 Overpass
123 Satono Reve
121 Joliestar (f)
121 Lake Forest
121 Sajir
Best performances in last 10 years:
124 The Tin Man
124 Lazzat
122 Dream of Dreams
122 Merchant Navy
121 Blue Point
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Simon Wilkes 
Michael Davey