diff --git a/server/src/lib/score-import/import-types/common/api-kai/sdvx/class-handler.ts b/server/src/lib/score-import/import-types/common/api-kai/sdvx/class-handler.ts
index 7e3f01b7d..a637de914 100644
--- a/server/src/lib/score-import/import-types/common/api-kai/sdvx/class-handler.ts
+++ b/server/src/lib/score-import/import-types/common/api-kai/sdvx/class-handler.ts
@@ -36,7 +36,7 @@ export async function CreateKaiSDVXClassHandler(
 
 		const sdvxDan: number | null = json.skill_level - 1;
 
-		if (sdvxDan === null) {
+		if (sdvxDan === null || sdvxDan === undefined) {
 			return {};
 		}
 
@@ -52,6 +52,12 @@ export async function CreateKaiSDVXClassHandler(
 			return {};
 		}
 
+		// Kai APIs return -1 to indicate no dan. They also sometimes return undefined.
+		// I'm not too sure why.
+		if (sdvxDan === -1) {
+			return {};
+		}
+
 		if (sdvxDan < SDVXDans.DAN_1) {
 			logger.warn(
 				`${baseUrl} returned a dan of ${sdvxDan}, which was less than DAN_1 (${SDVXDans.DAN_1}.)`