Also known as: サンデーサイレンス, お友だち(ウマ娘)
[table]
[body]
[tr]
[td]Sire:[/td]
[td]Halo (Racehorse)[/td]
[/tr]
[tr]
[td]Grandsire:[/td]
[td]Hail To Reason (Racehorse)[/td]
[/tr]
[tr]
[td]Dam:[/td]
[td]Wishing Well (Racehorse)[/td]
[/tr]
[tr]
[td]Damsire:[/td]
[td]Understanding (Racehorse)[/td]
[/tr]
[/body]
[/table]
Sunday Silence (1986-2002) is a successful American racehorse and winner of two of the American Triple Crown races in 1989. The horse, however, is better known as the leading sire (the horse whose offspring achieved the highest monetary winnings) in Japan for 13 years, including 5 years posthumously. Many of his numerous offspring and descendants became successful racehorses themselves and several became popular sires and broodmares in their own right, especially Deep Impact (Racehorse) (2002 - 2019), one of his most successful offspring and successor as a long-streaking leading sire (11 years and counting). His influence is so pervasive to the point that nowadays, almost all racehorses in Japan racing at any given level that aren't foreign-bred are direct descendants of Sunday Silence.
In the context of Umamusume, he is the RL sire or ancestor of a significant portion of the horse girls, especially the youngest in RL. Additionally, the ingame career of Manhattan Cafe (Umamusume) hints that the invisible "friend" haunting Cafe is in fact Sunday Silence in some form. When not depicted as Cafe's shadowy friend, he is often represented as a Look-Alike of Cafe, owing to both her friend being described as resembling her, and the fact that the real life Cafe looked extremely similar to Sunday, to the point where the former 'played' the role of the latter in a TV movie about Sunday and his owner, Yoshida Zenya.