Iridessa
Irish-bred Thoroughbred racehorse
Iridessa (foaled 14 January 2016) is an Irish Thoroughbred racehorse. As a two-year-old in 2018 she was one of the best fillies of her generation in Europe, winning the Group 1 Fillies' Mile. In the following year she was beaten in her first three races but then recorded further major wins in the Pretty Polly Stakes, Matron Stakes, and Breeders' Cup Filly & Mare Turf.
Background
Iridessa is a bay filly bred in Ireland by Whisperview Trading Ltd, a breeding company partly owned by Aidan O'Brien. The filly entered the ownership of O'Brien's wife Anne-Marie and was sent into training with his son Joseph Patrick O'Brien.
She was from the first crop of foals sired by the Epsom Derby winner Ruler of the World. Iridessa's dam Senta's Dream was an unraced daughter of the top class racemare Starine. As a broodmare, Senta's Dream also produced Order of Australia and Santa Barbara.
Racing career
2018: two-year-old season
On her racecourse debut, Iridessa was ridden by Seamie Heffernan in a minor race over one mile at Killarney Racecourse on 17 July. Starting a 20/1 outsider in a six-runner field she raced in second place behind the favourite Cardini before taking the lead a furlong out and drawing away to win easily by four lengths.
The public source identifies “Iridessa” as irish-bred Thoroughbred racehorse. This brief keeps that definition visible, then builds a research path around Iridessa, Irish-bred and Thoroughbred.
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The citation trail is more important than the brevity of the summary: it shows where individual claims can be examined in context. The source revision retrieved here is dated Jun 30, 2026. The linked authority identifier is Q60748341. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 2016 and 2018.
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This entry incorporates text from “Iridessa” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.