diff --git a/lib/lists/weapons.ts b/lib/lists/weapons.ts
index 4e2380dbb..5ff55f7b0 100644
--- a/lib/lists/weapons.ts
+++ b/lib/lists/weapons.ts
@@ -144,3 +144,6 @@ export const altWeaponToNormal = new Map([
 ]);
 
 export const isWeapon = (value: any) => weapons.includes(value);
+
+export const getWeaponNormalized = (weapon: any) =>
+  altWeaponToNormal.has(weapon) ? altWeaponToNormal.get(weapon) : weapon;
diff --git a/pages/api/builds/index.ts b/pages/api/builds/index.ts
index 3810e9c83..8c93cca66 100644
--- a/pages/api/builds/index.ts
+++ b/pages/api/builds/index.ts
@@ -1,7 +1,7 @@
 import { Ability } from "@prisma/client";
 import { GANBA_DISCORD_ID } from "lib/constants";
 import { getMySession } from "lib/getMySession";
-import { altWeaponToNormal } from "lib/lists/weapons";
+import { getWeaponNormalized } from "lib/lists/weapons";
 import { buildSchema } from "lib/validators/build";
 import { NextApiRequest, NextApiResponse } from "next";
 import prisma from "prisma/client";
@@ -29,23 +29,6 @@ const postHandler = async (req: NextApiRequest, res: NextApiResponse) => {
       .json({ message: "You have too many builds posted already" });
   }
 
-  const hasTop500WithTheWeapon = async () => {
-    const playerData = await prisma.player.findFirst({
-      where: { userId: user.id },
-      include: { placements: true },
-    });
-
-    if (!playerData) return false;
-
-    const weaponNormalized = altWeaponToNormal.has(parsed.data.weapon)
-      ? altWeaponToNormal.get(parsed.data.weapon)
-      : parsed.data.weapon;
-
-    return playerData.placements.some(
-      (placement) => placement.weapon === weaponNormalized
-    );
-  };
-
   await prisma.build.create({
     data: {
       ...parsed.data,
@@ -58,7 +41,7 @@ const postHandler = async (req: NextApiRequest, res: NextApiResponse) => {
         parsed.data.shoesAbilities
       ),
       jpn: postsJpBuilds,
-      top500: await hasTop500WithTheWeapon(),
+      top500: await hasTop500WithTheWeapon(user.id, parsed.data.weapon),
       user: {
         connect: {
           id: user.id,
@@ -103,6 +86,10 @@ const updateHandler = async (req: NextApiRequest, res: NextApiResponse) => {
       modes: parsed.data.modes.sort(
         (a, b) => modes.indexOf(a) - modes.indexOf(b)
       ),
+      top500:
+        parsed.data.weapon === existingBuild.weapon
+          ? existingBuild.top500
+          : await hasTop500WithTheWeapon(user.id, parsed.data.weapon),
       abilityPoints: getAbilityPoints(
         parsed.data.headAbilities,
         parsed.data.clothingAbilities,
@@ -148,4 +135,17 @@ function getAbilityPoints(
   return result;
 }
 
+async function hasTop500WithTheWeapon(userId: number, weapon: string) {
+  const playerData = await prisma.player.findFirst({
+    where: { userId: userId },
+    include: { placements: true },
+  });
+
+  if (!playerData) return false;
+
+  return playerData.placements.some(
+    (placement) => placement.weapon === getWeaponNormalized(weapon)
+  );
+}
+
 export default buildHandler;
diff --git a/prisma/scripts/top500jsons.ts b/prisma/scripts/top500jsons.ts
index 101b00dbc..e8e70b637 100644
--- a/prisma/scripts/top500jsons.ts
+++ b/prisma/scripts/top500jsons.ts
@@ -1,6 +1,116 @@
+import { Prisma } from "@prisma/client";
+import { getWeaponNormalized } from "../../lib/lists/weapons";
+import prisma from "../client";
+import cb from "./data/october_clam_blitz_2020.json";
+import rm from "./data/october_rainmaker_2020.json";
 import sz from "./data/october_splat_zones_2020.json";
-// import tc from "./data/october_tower_control_2020.json";
-// import rm from "./data/october_rainmaker_2020.json";
-// import cb from "./data/october_clam_blitz_2020.json"
+import tc from "./data/october_tower_control_2020.json";
 
-console.log(sz[0]);
+const MONTH = 10;
+const YEAR = 2020;
+
+const filterJson = (result: any) => !result.cheater;
+
+const jsonToInput = (
+  result: any,
+  mode: "SZ" | "TC" | "RM" | "CB",
+  month: number,
+  year: number
+): Prisma.XRankPlacementCreateInput => ({
+  playerName: result.name,
+  mode,
+  month,
+  year,
+  ranking: result.rank,
+  xPower: result.x_power,
+  weapon: getWeaponNormalized(result.weapon.name),
+  player: {
+    connectOrCreate: {
+      create: {
+        name: result.name,
+        switchAccountId: result.unique_id,
+      },
+      where: {
+        switchAccountId: result.unique_id,
+      },
+    },
+  },
+});
+
+const jsonToWeaponArrMap = (acc: Map<string, string[]>, result: any) => {
+  const weaponArr = acc.get(result.unique_id) ?? [];
+  acc.set(
+    result.unique_id,
+    weaponArr.concat(getWeaponNormalized(result.weapon.name))
+  );
+
+  return acc;
+};
+
+const main = async () => {
+  const builds = await prisma.build.findMany({
+    where: {
+      top500: false,
+    },
+    include: { user: { include: { player: true } } },
+  });
+
+  const inputSZ = sz
+    .filter(filterJson)
+    .map((json) => jsonToInput(json, "SZ", MONTH, YEAR));
+
+  const inputTC = tc
+    .filter(filterJson)
+    .map((json) => jsonToInput(json, "TC", MONTH, YEAR));
+
+  const inputRM = rm
+    .filter(filterJson)
+    .map((json) => jsonToInput(json, "RM", MONTH, YEAR));
+
+  const inputCB = cb
+    .filter(filterJson)
+    .map((json) => jsonToInput(json, "CB", MONTH, YEAR));
+
+  const idsToWeapons = [...sz, ...tc, ...rm, ...cb].reduce(
+    jsonToWeaponArrMap,
+    new Map()
+  );
+
+  const idsToUpdate: number[] = [];
+
+  builds.forEach((build) => {
+    if (!build.user.player?.switchAccountId) return;
+    const weaponArr = idsToWeapons.get(build.user.player.switchAccountId);
+    if (!weaponArr) return;
+    if (!weaponArr.includes(getWeaponNormalized(build.weapon))) return;
+
+    idsToUpdate.push(build.id);
+  });
+
+  const newPlacements = [
+    ...inputSZ,
+    ...inputTC,
+    ...inputRM,
+    ...inputCB,
+  ].map((input) => prisma.xRankPlacement.create({ data: input }));
+
+  await prisma.$transaction([...newPlacements]);
+  console.log("new placements submitted");
+  await prisma.build.updateMany({
+    where: {
+      id: {
+        in: idsToUpdate,
+      },
+    },
+    data: {
+      top500: true,
+    },
+  });
+  console.log("builds updated:", idsToUpdate.length);
+};
+
+main()
+  .catch((e) => console.error(e))
+  .finally(async () => {
+    await prisma.$disconnect();
+  });