diff --git a/config/formats.ts b/config/formats.ts
index 0092755f69..ce2cff5cb8 100644
--- a/config/formats.ts
+++ b/config/formats.ts
@@ -280,6 +280,13 @@ export const Formats: import('../sim/dex-formats').FormatList = [
 		ruleset: ['Standard'],
 		banlist: ['AG', 'Uber', 'Moody', 'Quick Claw', 'Baton Pass', 'Last Respects', 'Shed Tail'],
 	},
+	{
+		name: "[Gen 9 Champions] UU",
+		mod: 'champions',
+		searchShow: false,
+		ruleset: ['[Gen 9 Champions] OU'],
+		banlist: ['OU', 'UUBL'],
+	},
 	{
 		name: "[Gen 9 Champions] BSS Reg M-A",
 		mod: 'champions',
diff --git a/data/aliases.ts b/data/aliases.ts
index c63fa2f510..aa6ae6cfec 100644
--- a/data/aliases.ts
+++ b/data/aliases.ts
@@ -17,6 +17,8 @@ export const Aliases: import('../sim/dex').AliasesTable = {
 	ag: "[Gen 9] Anything Goes",
 	champsou: "[Gen 9 Champions] OU",
 	cou: "[Gen 9 Champions] OU",
+	champsuu: "[Gen 9 Champions] UU",
+	cuu: "[Gen 9 Champions] UU",
 	bss: "[Gen 9 Champions] BSS Reg M-A",
 	vgc: "[Gen 9 Champions] VGC 2026 Reg M-A",
 	bsd: "[Gen 9 Champions] VGC 2026 Reg M-A",