diff --git a/server/src/lib/score-import/import-types/ir/beatoraja/converter.ts b/server/src/lib/score-import/import-types/ir/beatoraja/converter.ts
index 1c9323cf5..a3ccd606d 100644
--- a/server/src/lib/score-import/import-types/ir/beatoraja/converter.ts
+++ b/server/src/lib/score-import/import-types/ir/beatoraja/converter.ts
@@ -182,7 +182,7 @@ export const ConverterIRBeatoraja: ConverterFunction<BeatorajaScore, BeatorajaCo
 			inputDevice: data.deviceType,
 			random,
 		},
-		timeAchieved: Date.now(),
+		timeAchieved: context.timeReceived,
 		service: "Beatoraja IR",
 	};
 
diff --git a/server/src/lib/score-import/import-types/ir/beatoraja/parser.ts b/server/src/lib/score-import/import-types/ir/beatoraja/parser.ts
index 25577416f..de32ce9e8 100644
--- a/server/src/lib/score-import/import-types/ir/beatoraja/parser.ts
+++ b/server/src/lib/score-import/import-types/ir/beatoraja/parser.ts
@@ -110,12 +110,13 @@ export function ParseBeatorajaSingle(
 		throw new ScoreImportFatalError(400, `Unsupported client ${client}`);
 	}
 
-	// asserted using prudence.
 	return {
 		context: {
 			client: "lr2oraja",
+			// asserted using prudence.
 			chart: body.chart as BeatorajaChart,
 			userID,
+			timeReceived: Date.now(),
 		},
 		game: "bms",
 		iterable: [body.score] as unknown as BeatorajaScore[],
diff --git a/server/src/lib/score-import/import-types/ir/beatoraja/types.ts b/server/src/lib/score-import/import-types/ir/beatoraja/types.ts
index 245c9bea6..3d2dbc7dd 100644
--- a/server/src/lib/score-import/import-types/ir/beatoraja/types.ts
+++ b/server/src/lib/score-import/import-types/ir/beatoraja/types.ts
@@ -4,6 +4,7 @@ export interface BeatorajaContext {
 	client: "lr2oraja";
 	chart: BeatorajaChart;
 	userID: integer; // unexpectedly necessary for orphan code!
+	timeReceived: number;
 }
 
 export interface BeatorajaChart {
diff --git a/server/src/lib/score-import/import-types/ir/usc/converter.ts b/server/src/lib/score-import/import-types/ir/usc/converter.ts
index 74f8d7094..82b4e7204 100644
--- a/server/src/lib/score-import/import-types/ir/usc/converter.ts
+++ b/server/src/lib/score-import/import-types/ir/usc/converter.ts
@@ -108,7 +108,7 @@ export const ConverterIRUSC: ConverterFunction<USCClientScore, IRUSCContext> = a
 		comment: null,
 		game: "usc",
 		importType,
-		timeAchieved: Date.now(),
+		timeAchieved: context.timeReceived,
 		service: "USC-IR",
 		scoreData: {
 			grade,
diff --git a/server/src/lib/score-import/import-types/ir/usc/parser.ts b/server/src/lib/score-import/import-types/ir/usc/parser.ts
index 9b46840e5..74df7ad84 100644
--- a/server/src/lib/score-import/import-types/ir/usc/parser.ts
+++ b/server/src/lib/score-import/import-types/ir/usc/parser.ts
@@ -62,6 +62,7 @@ export function ParseIRUSC(
 		context: {
 			chartHash,
 			playtype,
+			timeReceived: Date.now(),
 		},
 		game: "usc",
 		iterable: [score] as USCClientScore[],
diff --git a/server/src/lib/score-import/import-types/ir/usc/types.ts b/server/src/lib/score-import/import-types/ir/usc/types.ts
index badada65d..e9283d56c 100644
--- a/server/src/lib/score-import/import-types/ir/usc/types.ts
+++ b/server/src/lib/score-import/import-types/ir/usc/types.ts
@@ -3,4 +3,5 @@ import { Playtypes } from "tachi-common";
 export interface IRUSCContext {
 	chartHash: string;
 	playtype: Playtypes["usc"];
+	timeReceived: number;
 }
diff --git a/server/src/server/router/ir/usc/_playtype/router.ts b/server/src/server/router/ir/usc/_playtype/router.ts
index 957d607b3..ddf48e9c0 100644
--- a/server/src/server/router/ir/usc/_playtype/router.ts
+++ b/server/src/server/router/ir/usc/_playtype/router.ts
@@ -334,9 +334,12 @@ router.post("/scores", RequirePermissions("submit_score"), async (req, res) => {
 				"context.playtype": playtype,
 			});
 
-			await Promise.all(
-				scoresToDeorphan.map((score) => ReprocessOrphan(score, blacklist, logger))
-			);
+			for (const score of scoresToDeorphan) {
+				// Has to be like this to avoid race conditions where two
+				// orphans resolve to the same scoreID and collide in mid-air!
+				// eslint-disable-next-line no-await-in-loop
+				await ReprocessOrphan(score, blacklist, logger);
+			}
 		}
 	}
 
diff --git a/server/temp-893389.rdb b/server/temp-893389.rdb
new file mode 100644
index 000000000..f52ea9738
Binary files /dev/null and b/server/temp-893389.rdb differ