I have been following horse racing for 30 years, rating races.
I have seen some very good performances by top class horses
The only horses I have seen posting back to back 135+ performances are
Deep Impact, twice in Japan
Generous, 3 in a row
Dubai Milenium, one in dirt and at Royal Ascot, given a good break
Frankel, bounced after the Guineas but later in his career able to put 6 runnings in a row, that’s why I think he is the best horse I have seen.
Black Caviar, just twice and easier to do in sprints
Cirrus Des Aigles, just twice in France
Goldikova, after the Jacques Le Marois not as good again.
Overdose, was not the same after that amazing performance in Italy
Royal Anthem, flopping in Ireland after York
Daylami, flopping in the Arc after Ireland
Just Away, not the same after Dubai
Sea The Moon, injured afterwards
Queens Logic, injured afterwards, mid125s as a 2yo
Celtic Swing, not the same after the RPT
Zafonic, bleeding in the Sussex after the guineas
Hawk Wing after the Lockinge.
Sakhee after the Arc beaten in the BC
Harbinger , injured after the King George
Xaar not the same after the Dewhurst
Dream Ahead bouncing after the Middle Park
I think A Shin Hikari today run to something like 138, but was not ridden as a horse thinking in Royal Ascot, I am likely not to have a bet in the Prince Of wales but my feeling is that he is a horse likely to bounce after the last 2 hard races he has had.