I don't think there's been a more impressive run this season from any horse. He was three wide on the pace the whole trip and, under those circumstances, was a sitting shot for any horse behind him to run over the top of him. He easily held PR to the line. TJ and Littorio are handicappers.
WH should clearly run odds-on and win the Turnbull. Here's the field:

PATINACK TURNBULL STAKE

4-Y-O & Up. SW + P No Claims. Group 1.

2000 Metres $502,000 4.20 PM

 1 Efficient (NZ) (John Sadler) S W Arnold 6 58.5

 2 Pompeii Ruler (Mick Price) C Newitt 2 58.5

 3 Zipping (John Sadler) 9 58.5

 4 Weekend Hussler (Ross McDonald) B Rawiller 13 57.5

 5 Master O'Reilly (NZ) (Danny O'Brien) V Duric 8 57.0

 6 Maldivian (NZ) (Mark Kavanagh) M Rodd 7 57.0

 7 Tuesday Joy (NZ) (Gai Waterhouse) D Beadman 11 56.5

 8 Guillotine (NZ) (David Hayes) C Williams 5 56.0

 9 Zarita (NZ) (Pat Hyland) G Childs 12 55.5

10 Alexander of Hales (USA) (Danny O'Brien) D Oliver 3 54.5

11 Extend (John Sadler) 1 54.5

12 Zagreb (David Hayes) D Dunn 10 54.0

13 Littorio (Nigel Blackiston) Steven King 4 53.0