Riviere D'etel ran her rivals into the ground with an impressive all-the-way win in the Grade Two BetVictor Casino Novice Chase at Punchestown.
Taking advantage of the weight allowances, the four-year-old filly romped home 21 lengths clear of the 8-11 favourite Cape Gentleman, who was conceding 18lb to the winner.
Denis O'Regan made his intentions clear from the start as he kicked Riviere D'etel (9-4) into the lead from flag fall. Cape Gentleman was always in second place, keeping tabs on the Gordon Elliott-trained leader.
When it looked as though Cape Gentleman would mount a serious challenge, Riviere D'etel pulled away to win in convincing fashion and back up her chasing debut success at Fairyhouse last month.
Fighting Fifth live on Sky Sports
Watch Fighting Fifth day at Newcastle on Saturday, November 27 from 11.45am live on Sky Sports Racing
"I thought she was very good. She jumped well and Denis gave her a good ride, she's a nice mare," said Elliott.
"We said we'd let her stride along and use all the allowances. She might have won with 10lb more, whether she would have won with 18lb more I don't know, but she won very well.
"There is a mares' race in Cork in a few weeks (Grade Two Lombardstown Chase on December 5) and there is also a novice chase in Navan (December 18).
"I wouldn't rule anything out with her and we'll keep all our options open."
Riviere D'etel was cut to 14-1 from 33-1 for the Arkle Trophy at the Cheltenham Festival with Betfair.
French Dynamite took full advantage of the absence of Bob Olinger to record an impressive success in the BetVictor Loyalty Club Beginners Chase.
Follow Sky Sports Racing on Twitter
See the latest horse racing news, interviews and features from Sky Sports Racing
Henry de Bromhead's Bob Olinger was due to make his eagerly-awaited debut over fences, but the Cheltenham Festival winner was ruled out with a stone bruise.
That left French Dynamite as the even-money favourite in the same colours of Robcour, and the result was never in doubt from some way out.