Oisin Murphy suffered a heavy crash the night he maintained a two-win lead over title rival William Buick at Chelmsford.
The map, just days before the competition final, was tainted by the incident involving Murphy.
His Discover Dubai mount fell on the home turn of race four and was unfortunately fatally injured.
Murphy was thrown from the horse and returned to the weigh room to complete his last three laps.
Racing fans anticipating the close battle of the night were saddened by the loss of the race favorite.
One of them said on Twitter: “Those were horrible thoughts with everyone who loved Discover Dubai.”
Another added: “Very sad for Discover Dubai and the construction site.”
The two-time champion jockey saw his title lead reduced to one when Buick won the novice mile straddling the woman’s typical 9-1 shot.
Murphy responded immediately, guiding the notions that Jamie Osborne formed at home in the 7th Novice Event.
It has 151 winners compared to Buick’s 149 – and the pair face off again at Haydock on Friday.
Murphy told Racing TV: “I’ve been here before and I know that feeling well. It’s not a lot of fun, it’s a lot of pressure. We should take advantage of it, but it’s not that pleasant. try my best and try to make the most of the opportunities I get.
“I have great rides tomorrow and at Ascot on Saturday and I have to thank my agent and my coaches for accommodating me, without the horses you can’t ride winners – I have to make the most of every chance I have. ‘have.”
After obtaining a victory each, the two athletes obtained a second place in partnership with a favorite.
Buick’s loss was more of a shock, as his horse Lord Lovelace only had 2-9f to triumph.
Grosvenor Sport is offering new customers the chance to get £ 30 in FREE BETS when you bet £ 10 on horse racing.
All you need to do is register, place your € 10 bet on horse races and you will receive € 30 in free bets.
18+ | Bet Responsibly | begambleaware.org | CGV apply |
The QIPCO British Champions Day will close the championship on Saturday.
Paddy Power shortened Murphy to 4-7 (from 4-6) to retain his crown and reduced Buick to 11-8 (from 11-10).
Spokesman Paul Binfield said: “The jockeys are masters of precision timing and while most of this week it looks like William has perfectly timed his title challenge, a draw tonight means we now think Oisin is one step closer to getting his championship hat trick. “