diff --git a/src/components/features/evaluator/applicant-list.tsx b/src/components/features/evaluator/applicant-list.tsx
index 8c2f7d1..2157bd4 100644
--- a/src/components/features/evaluator/applicant-list.tsx
+++ b/src/components/features/evaluator/applicant-list.tsx
@@ -26,7 +26,18 @@ export function ApplicantList() {
   const filteredApplicants = useMemo(() => {
     let list = applicants || [];
     list = filterApplicantsByStatus(list, selectedStatuses);
-    return filterApplicantsBySearch(list, searchTerm).sort((a, b) => a._id.localeCompare(b._id));
+    return filterApplicantsBySearch(list, searchTerm)
+      .slice()
+      .sort((a, b) => {
+        const aSubmissionMs = a.submission?.submittedAt?.toMillis?.() ?? 0;
+        const bSubmissionMs = b.submission?.submittedAt?.toMillis?.() ?? 0;
+
+        if (aSubmissionMs !== bSubmissionMs) {
+          return aSubmissionMs - bSubmissionMs;
+        }
+
+        return a._id.localeCompare(b._id);
+      });
   }, [applicants, searchTerm, selectedStatuses]);
 
   return (
diff --git a/src/components/features/stampbook/export-raffle-dialog.tsx b/src/components/features/stampbook/export-raffle-dialog.tsx
index 7c08b7d..6466b52 100644
--- a/src/components/features/stampbook/export-raffle-dialog.tsx
+++ b/src/components/features/stampbook/export-raffle-dialog.tsx
@@ -76,7 +76,7 @@ export function ExportRaffleDialog({ open, onClose, stamps }: ExportRaffleDialog
 
     setLoading(true);
     try {
-      const allUserStamps = await fetchHackersWithStamps();
+      const allUserStamps = await fetchHackersWithStamps(selectedHackathon);
       const filteredEntries = allUserStamps.filter((entry: HackerStampEntry) =>
         selectedStampIds.includes(entry.stampId)
       );
diff --git a/src/lib/firebase/types.ts b/src/lib/firebase/types.ts
index fb3add5..50c8f7c 100644
--- a/src/lib/firebase/types.ts
+++ b/src/lib/firebase/types.ts
@@ -260,6 +260,7 @@ export interface Applicant {
   submission?: {
     lastUpdated?: Timestamp;
     submitted?: boolean;
+    submittedAt?: Timestamp;
   };
   dayOf?: {
     day1?: {
diff --git a/src/services/stamps.ts b/src/services/stamps.ts
index 1f3869a..f79c86f 100644
--- a/src/services/stamps.ts
+++ b/src/services/stamps.ts
@@ -144,7 +144,7 @@ export const deleteStampQR = async (stampId: string) => {
  * Each stamp a user has unlocked creates one entry (for nwHacks 2026 raffle weighting).
  * @returns Array of entries where each entry represents one stamp collected by a hacker
  */
-export const fetchHackersWithStamps = async (): Promise<HackerStampEntry[]> => {
+export const fetchHackersWithStamps = async (hackathonId: string): Promise<HackerStampEntry[]> => {
   const socialsSnapshot = await getDocs(collection(db, "Socials"));
   const entries: HackerStampEntry[] = [];
 
@@ -152,7 +152,7 @@ export const fetchHackersWithStamps = async (): Promise<HackerStampEntry[]> => {
     const socialData = socialDoc.data();
     const displayName = socialData.preferredName || "User";
     const email = socialData.email || "";
-    const unlockedStamps: string[] = socialData.unlockedStamps || [];
+    const unlockedStamps: string[] = socialData.unlockedStamps?.[hackathonId] || [];
 
     for (const stampId of unlockedStamps) {
       entries.push({