diff --git a/server/package.json b/server/package.json
index 9e3fcfc22..8466ace07 100644
--- a/server/package.json
+++ b/server/package.json
@@ -82,7 +82,7 @@
 		"rimraf": "3.0.2",
 		"safe-json-stringify": "1.2.0",
 		"seq-logging": "^1.1.1",
-		"tachi-common": "0.3.7",
+		"tachi-common": "0.3.9",
 		"ts-node": "10.0.0",
 		"typescript": "4.3.4",
 		"winston": "3.3.3",
diff --git a/server/pnpm-lock.yaml b/server/pnpm-lock.yaml
index 87167de85..616e91f33 100644
--- a/server/pnpm-lock.yaml
+++ b/server/pnpm-lock.yaml
@@ -62,7 +62,7 @@ specifiers:
   safe-json-stringify: 1.2.0
   seq-logging: ^1.1.1
   supertest: 6.1.3
-  tachi-common: 0.3.7
+  tachi-common: 0.3.9
   tap: 15.0.9
   ts-node: 10.0.0
   tsconfig-paths: 3.10.1
@@ -105,7 +105,7 @@ dependencies:
   rimraf: 3.0.2
   safe-json-stringify: 1.2.0
   seq-logging: 1.1.1
-  tachi-common: 0.3.7
+  tachi-common: 0.3.9
   ts-node: 10.0.0_83f53b0a0c5616d3fa00ed4e30b9ce1b
   typescript: 4.3.4
   winston: 3.3.3
@@ -4906,8 +4906,8 @@ packages:
       strip-ansi: 6.0.0
     dev: true
 
-  /tachi-common/0.3.7:
-    resolution: {integrity: sha512-l95qLUDKLeBK8eSf+ZHEruP1XgmWD/t6tq1kcKpFaS2JuaDfUrjbnQ37QMsriP4Ftoeryx+FulJNI0oZnsUKTA==}
+  /tachi-common/0.3.9:
+    resolution: {integrity: sha512-h+DEsSYjNZ6aeMcTSJeKQetfPxqDF4zuNULx1gyb7qK3NnUQXVPEd7yOld/6IDh8Lkf+CYk6zzA5PTXWNzSvjQ==}
     dependencies:
       monk: 7.3.4
     transitivePeerDependencies:
diff --git a/server/scripts/__KT_DATABASE_MIGRATION/scores/chunithm.ts b/server/scripts/__KT_DATABASE_MIGRATION/scores/chunithm.ts
new file mode 100644
index 000000000..9f50bc958
--- /dev/null
+++ b/server/scripts/__KT_DATABASE_MIGRATION/scores/chunithm.ts
@@ -0,0 +1,95 @@
+/* eslint-disable @typescript-eslint/no-explicit-any */
+
+import db from "external/mongo/db";
+import CreateLogCtx from "lib/logger/logger";
+import { CreateScoreID } from "lib/score-import/framework/score-importing/score-id";
+import { GetGameConfig, GetGamePTConfig, ScoreDocument } from "tachi-common";
+import MigrateRecords from "../migrate";
+import { oldKTDB } from "../old-db";
+
+const logger = CreateLogCtx(__filename);
+
+async function ConvertFn(c: any): Promise<ScoreDocument | null> {
+	const game = c.game;
+	const playtype = c.scoreData.playtype;
+
+	const gameConfig = GetGameConfig(game);
+
+	if (!gameConfig.validPlaytypes.includes(playtype)) {
+		logger.warn(`Ignored game pt ${game}, ${playtype}`);
+		throw new Error(`Ignored game pt ${game}, ${playtype}`);
+	}
+
+	const gptConfig = GetGamePTConfig(game, playtype);
+
+	if (!gptConfig) {
+		logger.error(`No gptconfig for ${game} ${playtype}?`);
+		throw new Error(`No gptconfig for ${game} ${playtype}?`);
+	}
+
+	// @ts-expect-error implicit any is expected
+	const chartDoc = await db.charts[game].findOne({
+		songID: c.songID,
+		difficulty: c.scoreData.difficulty,
+		playtype,
+	});
+
+	if (!chartDoc) {
+		logger.warn(`Cannot find ChartDoc for ${c.songID} ${c.scoreData.difficulty} ${playtype} `);
+		return null;
+	}
+
+	const base: Omit<ScoreDocument<"chunithm:Single">, "scoreID"> = {
+		userID: c.userID,
+		songID: chartDoc.songID,
+		playtype,
+		chartID: chartDoc.chartID,
+		game: c.game,
+		timeAdded: c.timeAdded,
+		timeAchieved: Number.isNaN(c.timeAchieved) ? null : c.timeAchieved,
+		comment: c.comment ?? null,
+		highlight: c.highlight ?? false,
+		service: c.service,
+		importType: null,
+		// we'll just recalc calculated data instead of trying to update
+		calculatedData: {},
+		isPrimary: chartDoc.isPrimary,
+		scoreData: {
+			esd: c.scoreData.esd ?? null,
+			grade: c.scoreData.grade,
+			gradeIndex: gptConfig.grades.indexOf(c.scoreData.grade),
+			lamp: c.scoreData.lamp,
+			lampIndex: gptConfig.lamps.indexOf(c.scoreData.lamp),
+			percent: c.scoreData.percent,
+			score: c.scoreData.score,
+			judgements: c.scoreData.hitData,
+			hitMeta: c.scoreData.hitMeta,
+		},
+		scoreMeta: {},
+	};
+
+	const scoreID = CreateScoreID(base.userID, base, base.chartID);
+
+	const exists = await db.scores.findOne({ scoreID });
+
+	if (exists) {
+		logger.warn(`Skipping duplicate score ${base.chartID} ${base.userID}.`);
+		return null;
+	}
+
+	const score: ScoreDocument = {
+		...base,
+		scoreID,
+	};
+
+	await oldKTDB.get("score-id-lookup").insert({
+		old: c.scoreID,
+		new: scoreID,
+	});
+
+	return score;
+}
+
+export async function MigrateCHUNITHMScores() {
+	await MigrateRecords(db.scores, "scores", ConvertFn, { game: "chunithm" }, true);
+}
diff --git a/server/scripts/__KT_DATABASE_MIGRATION/scores/migrate-all.ts b/server/scripts/__KT_DATABASE_MIGRATION/scores/migrate-all.ts
index 9de93cccf..a07e44638 100644
--- a/server/scripts/__KT_DATABASE_MIGRATION/scores/migrate-all.ts
+++ b/server/scripts/__KT_DATABASE_MIGRATION/scores/migrate-all.ts
@@ -1,5 +1,6 @@
 import CreateLogCtx from "lib/logger/logger";
 import { MigrateBMSScores } from "./bms";
+import { MigrateCHUNITHMScores } from "./chunithm";
 import { MigrateIIDXScores } from "./iidx";
 import { MigrateMusecaScores } from "./museca";
 import { MigrateSDVXScores } from "./sdvx";
@@ -12,7 +13,6 @@ const logger = CreateLogCtx(__filename);
 	await MigrateIIDXScores();
 
 	logger.info(`Migrating BMS Scores.`);
-
 	await MigrateBMSScores();
 
 	logger.info(`Migrating MUSECA Scores.`);
@@ -22,4 +22,12 @@ const logger = CreateLogCtx(__filename);
 	logger.info(`Migrating SDVX Scores.`);
 
 	await MigrateSDVXScores();
+
+	logger.info(`Migrating CHUNITHM Scores.`);
+
+	await MigrateCHUNITHMScores();
+
+	logger.info("Done.");
+
+	process.exit(0);
 })();
diff --git a/server/scripts/__KT_DATABASE_MIGRATION/sessions.ts b/server/scripts/__KT_DATABASE_MIGRATION/sessions.ts
index 04700d6f8..dce3d322c 100644
--- a/server/scripts/__KT_DATABASE_MIGRATION/sessions.ts
+++ b/server/scripts/__KT_DATABASE_MIGRATION/sessions.ts
@@ -31,7 +31,7 @@ async function ConvertScoreToScoreInfo(
 	});
 
 	if (!scoreIDs) {
-		logger.warn(`No score for ${score.scoreID}? Skipping.`);
+		logger.verbose(`No score for ${score.scoreID}? Skipping.`);
 		return null;
 	}
 
diff --git a/server/scripts/__KT_DATABASE_MIGRATION/state-sync/sync-state.ts b/server/scripts/__KT_DATABASE_MIGRATION/state-sync/sync-state.ts
index d79b13889..1819df468 100644
--- a/server/scripts/__KT_DATABASE_MIGRATION/state-sync/sync-state.ts
+++ b/server/scripts/__KT_DATABASE_MIGRATION/state-sync/sync-state.ts
@@ -1,8 +1,7 @@
 import CreateLogCtx from "lib/logger/logger";
+import { RecalcAllScores, UpdateAllPBs } from "utils/calculations/recalc-scores";
 import { CreateGameProfiles } from "./create-game-profiles";
-import { RecalcAllScores } from "./recalc-all-scores";
 import { RecalcSessions } from "./recalc-sessions";
-import { UpdateAllPBs } from "./update-all-pbs";
 
 const logger = CreateLogCtx(__filename);