diff --git a/src/app/leaderboards/page.tsx b/src/app/leaderboards/page.tsx
index fd28720..74f43d1 100644
--- a/src/app/leaderboards/page.tsx
+++ b/src/app/leaderboards/page.tsx
@@ -25,158 +25,19 @@ import {
 
 import LeaderboardRow from "@/app/leaderboards/components/LeaderboardRow";
 import StatCard from "@/components/app/StatCard";
-
-const globalLeaderboard = [
-  {
-    rank: 1,
-    username: "speedmaster_x",
-    pb: "2:34.21",
-    runsCount: 2341,
-    category: "Any%",
-  },
-  {
-    rank: 2,
-    username: "algo_ninja",
-    pb: "2:38.54",
-    runsCount: 1876,
-    category: "Any%",
-  },
-  {
-    rank: 3,
-    username: "clockwork",
-    pb: "2:41.02",
-    runsCount: 3102,
-    category: "Any%",
-  },
-  {
-    rank: 4,
-    username: "fastfingers99",
-    pb: "2:45.33",
-    runsCount: 987,
-    category: "Any%",
-  },
-  {
-    rank: 5,
-    username: "recursion_queen",
-    pb: "2:47.89",
-    runsCount: 1543,
-    category: "Any%",
-  },
-  {
-    rank: 6,
-    username: "bitshifter",
-    pb: "2:52.11",
-    runsCount: 2109,
-    category: "Any%",
-  },
-  {
-    rank: 7,
-    username: "nullpointer",
-    pb: "2:54.67",
-    runsCount: 876,
-    category: "Any%",
-  },
-  {
-    rank: 8,
-    username: "stackattack",
-    pb: "2:58.23",
-    runsCount: 1234,
-    category: "Any%",
-  },
-  {
-    rank: 9,
-    username: "looplegend",
-    pb: "3:01.45",
-    runsCount: 654,
-    category: "Any%",
-  },
-  {
-    rank: 10,
-    username: "coderunner",
-    pb: "3:05.78",
-    runsCount: 1098,
-    category: "Any%",
-  },
-];
-const weeklyLeaderboard = [
-  {
-    rank: 1,
-    username: "weekly_warrior",
-    pb: "2:51.33",
-    runsCount: 156,
-    category: "Any%",
-  },
-  {
-    rank: 2,
-    username: "speedmaster_x",
-    pb: "2:53.12",
-    runsCount: 89,
-    category: "Any%",
-  },
-  {
-    rank: 3,
-    username: "newbie_grinder",
-    pb: "2:58.67",
-    runsCount: 234,
-    category: "Any%",
-  },
-  {
-    rank: 4,
-    username: "algo_ninja",
-    pb: "3:02.45",
-    runsCount: 67,
-    category: "Any%",
-  },
-  {
-    rank: 5,
-    username: "fresh_runner",
-    pb: "3:05.89",
-    runsCount: 45,
-    category: "Any%",
-  },
-  {
-    rank: 6,
-    username: "practice_makes",
-    pb: "3:08.12",
-    runsCount: 112,
-    category: "Any%",
-  },
-  {
-    rank: 7,
-    username: "splitmaster",
-    pb: "3:12.34",
-    runsCount: 78,
-    category: "Any%",
-  },
-  {
-    rank: 8,
-    username: "grindtime",
-    pb: "3:15.56",
-    runsCount: 92,
-    category: "Any%",
-  },
-  {
-    rank: 9,
-    username: "pb_hunter",
-    pb: "3:18.90",
-    runsCount: 56,
-    category: "Any%",
-  },
-  {
-    rank: 10,
-    username: "reset_king",
-    pb: "3:22.11",
-    runsCount: 187,
-    category: "Any%",
-  },
-];
+import useAction from "@/hook/use-action";
+import {
+  getGlobalLeaderboard,
+  getWeeklyLeaderboard,
+} from "@/modules/leaderboard/actions";
 
 export default function Leaderboards() {
+  const [global, globalLoaded, globalError] = useAction(getGlobalLeaderboard);
+  const [weekly, weeklyLoaded, weeklyError] = useAction(getWeeklyLeaderboard);
+
   const [activeTab, setActiveTab] = useState<"global" | "weekly">("global");
-
   const categories = ["Any%", "100%", "Easy Only", "No DP", "Blind"];
-
-  const data = activeTab === "global" ? globalLeaderboard : weeklyLeaderboard;
+  const data = (activeTab === "global" ? global : weekly) || [];
 
   return (
     <div className="min-h-screen pt-24 pb-16">
diff --git a/src/hook/use-action.ts b/src/hook/use-action.ts
new file mode 100644
index 0000000..0f7468a
--- /dev/null
+++ b/src/hook/use-action.ts
@@ -0,0 +1,19 @@
+import { useEffect, useState } from "react";
+
+export default function useAction<T>(
+  action: () => Promise<T>,
+  dependencies = [],
+): [T | null, boolean, Error | null] {
+  const [value, setValue] = useState<T | null>(null);
+  const [loaded, setLoaded] = useState(false);
+  const [error, setError] = useState(null);
+
+  useEffect(() => {
+    action()
+      .then(setValue)
+      .catch(setError)
+      .finally(() => setLoaded(true));
+  }, dependencies);
+
+  return [value, loaded, error];
+}
diff --git a/src/modules/leaderboard/actions.ts b/src/modules/leaderboard/actions.ts
index f1179b4..34f7f0a 100644
--- a/src/modules/leaderboard/actions.ts
+++ b/src/modules/leaderboard/actions.ts
@@ -1,5 +1,154 @@
 "use server";
 
 import * as Core from "./core";
+import { Leaderboard } from "./types";
 
-export function getGlobalLeaderboard() {}
+export async function getGlobalLeaderboard(): Promise<Leaderboard> {
+  return [
+    {
+      rank: 1,
+      username: "speedmaster_x",
+      pb: "2:34.21",
+      runsCount: 2341,
+      category: "Any%",
+    },
+    {
+      rank: 2,
+      username: "algo_ninja",
+      pb: "2:38.54",
+      runsCount: 1876,
+      category: "Any%",
+    },
+    {
+      rank: 3,
+      username: "clockwork",
+      pb: "2:41.02",
+      runsCount: 3102,
+      category: "Any%",
+    },
+    {
+      rank: 4,
+      username: "fastfingers99",
+      pb: "2:45.33",
+      runsCount: 987,
+      category: "Any%",
+    },
+    {
+      rank: 5,
+      username: "recursion_queen",
+      pb: "2:47.89",
+      runsCount: 1543,
+      category: "Any%",
+    },
+    {
+      rank: 6,
+      username: "bitshifter",
+      pb: "2:52.11",
+      runsCount: 2109,
+      category: "Any%",
+    },
+    {
+      rank: 7,
+      username: "nullpointer",
+      pb: "2:54.67",
+      runsCount: 876,
+      category: "Any%",
+    },
+    {
+      rank: 8,
+      username: "stackattack",
+      pb: "2:58.23",
+      runsCount: 1234,
+      category: "Any%",
+    },
+    {
+      rank: 9,
+      username: "looplegend",
+      pb: "3:01.45",
+      runsCount: 654,
+      category: "Any%",
+    },
+    {
+      rank: 10,
+      username: "coderunner",
+      pb: "3:05.78",
+      runsCount: 1098,
+      category: "Any%",
+    },
+  ];
+}
+
+export async function getWeeklyLeaderboard(): Promise<Leaderboard> {
+  return [
+    {
+      rank: 1,
+      username: "weekly_warrior",
+      pb: "2:51.33",
+      runsCount: 156,
+      category: "Any%",
+    },
+    {
+      rank: 2,
+      username: "speedmaster_x",
+      pb: "2:53.12",
+      runsCount: 89,
+      category: "Any%",
+    },
+    {
+      rank: 3,
+      username: "newbie_grinder",
+      pb: "2:58.67",
+      runsCount: 234,
+      category: "Any%",
+    },
+    {
+      rank: 4,
+      username: "algo_ninja",
+      pb: "3:02.45",
+      runsCount: 67,
+      category: "Any%",
+    },
+    {
+      rank: 5,
+      username: "fresh_runner",
+      pb: "3:05.89",
+      runsCount: 45,
+      category: "Any%",
+    },
+    {
+      rank: 6,
+      username: "practice_makes",
+      pb: "3:08.12",
+      runsCount: 112,
+      category: "Any%",
+    },
+    {
+      rank: 7,
+      username: "splitmaster",
+      pb: "3:12.34",
+      runsCount: 78,
+      category: "Any%",
+    },
+    {
+      rank: 8,
+      username: "grindtime",
+      pb: "3:15.56",
+      runsCount: 92,
+      category: "Any%",
+    },
+    {
+      rank: 9,
+      username: "pb_hunter",
+      pb: "3:18.90",
+      runsCount: 56,
+      category: "Any%",
+    },
+    {
+      rank: 10,
+      username: "reset_king",
+      pb: "3:22.11",
+      runsCount: 187,
+      category: "Any%",
+    },
+  ];
+}
diff --git a/src/modules/leaderboard/types.ts b/src/modules/leaderboard/types.ts
index e69de29..4f25bf1 100644
--- a/src/modules/leaderboard/types.ts
+++ b/src/modules/leaderboard/types.ts
@@ -0,0 +1,9 @@
+export type Leaderboard = LeaderboardRank[];
+
+export interface LeaderboardRank {
+  rank: number;
+  username: string;
+  pb: string;
+  runsCount: number;
+  category: string;
+}