Experience counts for something. Billesdon Brook made her 10th start in Sunday’s Group 1 English 1,000 Guineas at Newmarket, England, to equal the highest number of career races among the 15 3-year-old fillies in the $744,600 race. Billesdon Brook was ignored - until she took the lead in the final furlong. Ridden by Sean Levey, Billesdon Brook scored a massive upset in the 1000 Guineas at a mile on turf, winning by 1 3/4 lengths over Laurens, who led for much of the final half-mile. Trained by Richard Hannon, Billesdon Brook paid 66-1 with bookmakers and was 101-1 on the separate pari-mutuel system. Billesdon Brook was the longest-priced winner in the history of the 1,000 Guineas, which was first run in 1814. Happily, a two-time Group 1 winner at 2, finished third as the 5-2 favorite in her first start since a 14th-place finish in the Breeders’ Cup Juvenile Fillies Turf at Del Mar last November. Trained by Aidan O’Brien, Happily closed from sixth to finish 2 1/4 lengths behind Billesdon Brook, who closed from the back of the field. Billesdon Brook gave the 30-year-old Levey his first Group I win. By Champs Elysses, Billesdon Brook has won four times, including the Group 3 Prestige Stakes at Goodwood last August. The 1,000 Guineas was her second start of 2018. Billesdon Brook was fourth in the Group 3 Nell Gwynn Stakes at Newmarket on April 18. She races for the Pall Mall Partners syndicate. Earlier on the Newmarket program, Wuheida, the winner of the BC Filly and Mare Turf at Del Mar last November, won her first start of 2018 in the Group 2 Dahlia Stakes for fillies and mares at 1 1/8 miles. Ridden by William Buick, Wuheida (10-11) won by four lengths over 12-1 Wilamina in the field of eight. Wuheida, a 4-year-old filly by Dubawi, races for Sheikh Mohammed’s Godolphin Racing and trainer Charlie Appleby and has won 4 of 8 starts.