2019: three-year-old season

Having not raced as a two-year-old Channel made her debut in a maiden race over 2000 metres at Saint-Cloud Racecourse on 30 March 2019. Ridden by Ronan Thomas and starting at odds of 11/1 she finished second of the fourteen runners, beaten half a length by the André Fabre-trained Secret Walk.^[7] Pierre-Charles Boudot then took over as her regular jockey and rode her in all of her subsequent races. On 27 April she started odds-on favourite for a maiden over 2200 metres at Lyon Parilly Racecourse and recorded her first victory as she won "easily" by two lengths from Big Death after taking the lead 300 metres from the finish.^[8] Three weeks later Channel was stepped up in class for the Prix de la Chapelle-en-Serval over 2100 metres at Chantilly Racecourse and went off the 5.3/1 third choice in an eight-runner field. After being in contention from the start she went to the front 200 metres from the finish and won "very readily" by one and three quarter lengths from Ebony with the favourite Dariyza a head away in third place.^[9]

In the Group 1 Prix de Diane over 2100 metres at Chantilly a month later, Channel started the 9.3/1 third choice in the betting behind Siyarafina and Commes (runner-up in the Poule d'Essai des Pouliches). The other thirteen runners included Wonderment (Critérium de Saint-Cloud), Étoile (Prix Cléopâtre), Platane (Prix Vanteaux), Cartiem (Prix Penelope), Nausha (Musidora Stakes) and Cala Tarida (Prix des Réservoirs). Platane set the pace before giving way to Wonderment in the straight but Channel, who had been in contention from the start, moved up on the outside to gain the advantage approaching the last 200 metres. With several fillies producing strong late runs the race resulted in a blanket finish with Channel holding on to win by a head from Commes, just ahead of Grand Glory, Étoile, Cala Tarida and Siyarafina.^[10] After the race Boudot said "I was 80% sure we'd won passing the post but I can't say I was absolutely certain. I felt like I was ahead and that we'd won bar an unfortunate nod of the head. Once I knew we’d won it was a huge moment". Graffard commented "When I saw the way she accelerated and that nothing else was really coming after her, I knew she wouldn’t stop. I felt she would run all the way to the line and that's exactly what she did".^[11]

On 1 August Channel was sent to England and matched against older fillies and mares in the Nassau Stakes at Goodwood Racecourse. Starting at odds of 11/1 she ran well until the last three furlongs but then dropped away to come home seventh of the nine runners behind the Japanese mare Deirdre. Six weeks later the filly was stepped up in distance to contest the Prix Vermeille over 2400 metres at Longchamp Racecourse in which she never looked likely to win and finished sixth to Star Catcher, beaten four and a half lengths by the winner.^[12]