There is no way to know in advance who will win the King George (whether you mean the King George VI Chase at Kempton or the King George VI & Queen Elizabeth Stakes at Ascot), so any answer is only a probabilistic guess based on form, ground, and likely entries rather than a fact.

Key point

  • The King George is a top‑tier race that attracts multiple Grade/Group 1 horses, so fields are usually deep and outcomes genuinely uncertain.
  • Prices from bookmakers (the betting market) are the best rough guide to “who is most likely” rather than “who will win”, and even strong favourites get beaten often in this race.

How to think about “who will win”

  • Look at recent form over the same trip (3m at Kempton for the Chase; 1m4f at Ascot for the Flat race) and at the same class level (Grade/Group 1).
  • Check whether the horse has proven stamina at the distance and handles the usual going for that time of year (often soft for the Chase, quicker for the summer Flat race).
  • Pay close attention to trainer and jockey records in the race; certain yards (like top National Hunt and Flat powerhouses) deliberately target the King George every season.

Safe guidance rather than a “tip”

  • Treat any tip (from media, friends, or forums) as opinion, not guaranteed outcome, and never bet more than you can comfortably afford to lose.
  • If you are betting, shop around different bookmakers for each‑way terms and best odds, because value matters more than trying to “know” the winner in advance.

TL;DR: No one can reliably tell you who will win the King George; the most you can get is an educated shortlist and current market favourites, and even those are wrong a lot of the time.