diff --git a/src/app/(admin)/admin/dashboard-content.tsx b/src/app/(admin)/admin/dashboard-content.tsx
index b934224..aefdb96 100644
--- a/src/app/(admin)/admin/dashboard-content.tsx
+++ b/src/app/(admin)/admin/dashboard-content.tsx
@@ -35,7 +35,7 @@ import { ActivityFeed } from '@/components/dashboard/activity-feed'
 import { CategoryBreakdown } from '@/components/dashboard/category-breakdown'
 import { DashboardSkeleton } from '@/components/dashboard/dashboard-skeleton'
 import { RecentEvaluations } from '@/components/dashboard/recent-evaluations'
-import { SemiFinalistTracker } from '@/components/dashboard/semi-finalist-tracker'
+import { RoundUserTracker } from '@/components/dashboard/round-user-tracker'
 
 type DashboardContentProps = {
   editionId: string
@@ -126,11 +126,7 @@ export function DashboardContent({ editionId, sessionName }: DashboardContentPro
     { limit: 8 },
     { enabled: !!editionId, refetchInterval: 30_000 }
   )
-  const { data: semiFinalistStats } = trpc.dashboard.getSemiFinalistStats.useQuery(
-    { editionId },
-    { enabled: !!editionId, refetchInterval: 120_000 }
-  )
-  const { data: featureFlags } = trpc.settings.getFeatureFlags.useQuery()
+  // Round User Tracker is self-contained — it fetches its own data
 
   if (isLoading) {
     return <DashboardSkeleton />
@@ -277,17 +273,9 @@ export function DashboardContent({ editionId, sessionName }: DashboardContentPro
             <SmartActions actions={nextActions} />
           </AnimatedCard>
 
-          {semiFinalistStats && semiFinalistStats.byCategory.length > 0 && (
-            <AnimatedCard index={6}>
-              <SemiFinalistTracker
-                byCategory={semiFinalistStats.byCategory}
-                byAward={semiFinalistStats.byAward}
-                unactivatedProjects={semiFinalistStats.unactivatedProjects}
-                editionId={editionId}
-                reminderThresholdDays={featureFlags?.accountReminderDays}
-              />
-            </AnimatedCard>
-          )}
+          <AnimatedCard index={6}>
+            <RoundUserTracker editionId={editionId} />
+          </AnimatedCard>
 
           <AnimatedCard index={7}>
             <ActivityFeed activity={liveActivity ?? recentActivity} />
diff --git a/src/components/dashboard/round-user-tracker.tsx b/src/components/dashboard/round-user-tracker.tsx
new file mode 100644
index 0000000..c1526f0
--- /dev/null
+++ b/src/components/dashboard/round-user-tracker.tsx
@@ -0,0 +1,198 @@
+'use client'
+
+import { useState } from 'react'
+import { Card, CardContent, CardHeader, CardTitle } from '@/components/ui/card'
+import { Button } from '@/components/ui/button'
+import { Badge } from '@/components/ui/badge'
+import { Progress } from '@/components/ui/progress'
+import {
+  Select,
+  SelectContent,
+  SelectItem,
+  SelectTrigger,
+  SelectValue,
+} from '@/components/ui/select'
+import {
+  Users,
+  Send,
+  CheckCircle2,
+  AlertCircle,
+  Loader2,
+} from 'lucide-react'
+import { trpc } from '@/lib/trpc/client'
+import { toast } from 'sonner'
+
+const categoryLabels: Record<string, string> = {
+  STARTUP: 'Startup',
+  BUSINESS_CONCEPT: 'Business Concept',
+  UNKNOWN: 'Unknown',
+}
+
+type RoundUserTrackerProps = {
+  editionId: string
+}
+
+export function RoundUserTracker({ editionId }: RoundUserTrackerProps) {
+  const [selectedRoundId, setSelectedRoundId] = useState<string | undefined>(undefined)
+
+  const { data, isLoading } = trpc.dashboard.getRoundUserStats.useQuery(
+    { editionId, roundId: selectedRoundId },
+    { enabled: !!editionId, refetchInterval: 120_000 }
+  )
+
+  const utils = trpc.useUtils()
+  const sendReminders = trpc.dashboard.sendAccountReminders.useMutation({
+    onSuccess: (result) => {
+      toast.success(`Sent ${result.sent} reminder${result.sent !== 1 ? 's' : ''}${result.failed > 0 ? `, ${result.failed} failed` : ''}`)
+      utils.dashboard.getRoundUserStats.invalidate()
+    },
+    onError: (err) => {
+      toast.error(`Failed to send reminders: ${err.message}`)
+    },
+  })
+  const [sendingTarget, setSendingTarget] = useState<string | null>(null)
+
+  if (isLoading || !data) return null
+
+  const { rounds, byCategory } = data
+  const effectiveRoundId = data.selectedRoundId
+
+  // Don't render if no rounds or no data
+  if (!effectiveRoundId || rounds.length === 0) return null
+
+  const totalProjects = byCategory.reduce((sum, c) => sum + c.total, 0)
+  const totalActivated = byCategory.reduce((sum, c) => sum + c.accountsSet, 0)
+  const totalPending = byCategory.reduce((sum, c) => sum + c.accountsNotSet, 0)
+
+  if (totalProjects === 0) return null
+
+  const selectedRound = rounds.find(r => r.id === effectiveRoundId)
+
+  const handleSendReminder = async (target: string, opts: { category?: 'STARTUP' | 'BUSINESS_CONCEPT' }) => {
+    setSendingTarget(target)
+    try {
+      await sendReminders.mutateAsync({
+        editionId,
+        roundId: effectiveRoundId,
+        category: opts.category,
+      })
+    } finally {
+      setSendingTarget(null)
+    }
+  }
+
+  return (
+    <Card>
+      <CardHeader className="pb-3">
+        <div className="flex items-center justify-between gap-2">
+          <CardTitle className="flex items-center gap-2 text-base">
+            <Users className="h-4 w-4 text-brand-blue" />
+            Round User Tracker
+          </CardTitle>
+          <Badge variant="outline" className="text-xs shrink-0">
+            {totalActivated}/{totalProjects} activated
+          </Badge>
+        </div>
+        {/* Round selector */}
+        <Select
+          value={effectiveRoundId}
+          onValueChange={(val) => setSelectedRoundId(val)}
+        >
+          <SelectTrigger className="h-8 text-xs mt-2">
+            <SelectValue placeholder="Select round" />
+          </SelectTrigger>
+          <SelectContent>
+            {rounds.map((r) => (
+              <SelectItem key={r.id} value={r.id} className="text-xs">
+                {r.name}
+                {r.status === 'ROUND_ACTIVE' && (
+                  <span className="ml-1.5 text-emerald-600">(active)</span>
+                )}
+              </SelectItem>
+            ))}
+          </SelectContent>
+        </Select>
+      </CardHeader>
+      <CardContent className="space-y-4">
+        {/* Subtitle showing round context */}
+        <p className="text-xs text-muted-foreground">
+          Projects that passed <span className="font-medium">{selectedRound?.name ?? 'this round'}</span> — account activation status
+        </p>
+
+        {/* Per-category rows */}
+        {byCategory.map((cat) => {
+          const pct = cat.total > 0 ? Math.round((cat.accountsSet / cat.total) * 100) : 0
+          const allSet = cat.accountsNotSet === 0
+          return (
+            <div key={cat.category} className="space-y-1.5">
+              <div className="flex items-center justify-between text-sm">
+                <span className="font-medium">
+                  {categoryLabels[cat.category] || cat.category}
+                </span>
+                <div className="flex items-center gap-2">
+                  <span className="text-xs text-muted-foreground">
+                    {cat.accountsSet} of {cat.total} activated
+                  </span>
+                  {allSet ? (
+                    <CheckCircle2 className="h-3.5 w-3.5 text-emerald-500" />
+                  ) : (
+                    <Button
+                      size="sm"
+                      variant="ghost"
+                      className="h-6 px-2 text-xs"
+                      disabled={sendReminders.isPending}
+                      onClick={() =>
+                        handleSendReminder(`cat-${cat.category}`, {
+                          category: cat.category as 'STARTUP' | 'BUSINESS_CONCEPT',
+                        })
+                      }
+                    >
+                      {sendingTarget === `cat-${cat.category}` ? (
+                        <Loader2 className="mr-1 h-3 w-3 animate-spin" />
+                      ) : (
+                        <Send className="mr-1 h-3 w-3" />
+                      )}
+                      Remind
+                    </Button>
+                  )}
+                </div>
+              </div>
+              <Progress value={pct} className="h-1.5" />
+              {cat.accountsNotSet > 0 && (
+                <p className="text-[11px] text-amber-600">
+                  <AlertCircle className="mr-0.5 inline h-3 w-3" />
+                  {cat.accountsNotSet} pending account setup
+                </p>
+              )}
+            </div>
+          )
+        })}
+
+        {/* Summary */}
+        <div className="border-t pt-3">
+          <div className="flex items-center justify-between text-sm">
+            <span className="font-semibold">
+              Total: {totalActivated} of {totalProjects} activated
+            </span>
+            {totalPending > 0 && (
+              <Button
+                size="sm"
+                variant="outline"
+                className="h-7 text-xs"
+                disabled={sendReminders.isPending}
+                onClick={() => handleSendReminder('all', {})}
+              >
+                {sendingTarget === 'all' ? (
+                  <Loader2 className="mr-1.5 h-3 w-3 animate-spin" />
+                ) : (
+                  <Send className="mr-1.5 h-3 w-3" />
+                )}
+                Remind All ({totalPending})
+              </Button>
+            )}
+          </div>
+        </div>
+      </CardContent>
+    </Card>
+  )
+}
diff --git a/src/lib/auth.ts b/src/lib/auth.ts
index 281a833..d962b86 100644
--- a/src/lib/auth.ts
+++ b/src/lib/auth.ts
@@ -390,11 +390,21 @@ export const { handlers, auth, signIn, signOut } = NextAuth({
         user.mustSetPassword = dbUser.mustSetPassword || !dbUser.passwordHash
       }
 
-      // Update last login time on actual sign-in
+      // Update last login time on actual sign-in, and activate INVITED users on login
       if (user.email) {
+        const loginUser = await prisma.user.findUnique({
+          where: { email: user.email },
+          select: { status: true },
+        })
         await prisma.user.update({
           where: { email: user.email },
-          data: { lastLoginAt: new Date() },
+          data: {
+            lastLoginAt: new Date(),
+            // If user is still INVITED but successfully logged in, activate them
+            ...(loginUser && loginUser.status === 'INVITED'
+              ? { status: 'ACTIVE' }
+              : {}),
+          },
         }).catch(() => {
           // Ignore errors from updating last login
         })
diff --git a/src/server/routers/dashboard.ts b/src/server/routers/dashboard.ts
index ee0dd08..c6754ad 100644
--- a/src/server/routers/dashboard.ts
+++ b/src/server/routers/dashboard.ts
@@ -703,6 +703,117 @@ export const dashboardRouter = router({
       return { byCategory, byAward, unactivatedProjects }
     }),
 
+  /**
+   * Round User Tracker: for a given round, find projects that PASSED that round
+   * and show team member account activation stats grouped by category.
+   * If no roundId is provided, uses the latest active or most recently closed round.
+   */
+  getRoundUserStats: adminProcedure
+    .input(z.object({ editionId: z.string(), roundId: z.string().optional() }))
+    .query(async ({ ctx, input }) => {
+      const { editionId, roundId } = input
+
+      // Get all rounds for this edition to power the round selector
+      const allRounds = await ctx.prisma.round.findMany({
+        where: { competition: { programId: editionId } },
+        select: { id: true, name: true, sortOrder: true, status: true, roundType: true },
+        orderBy: { sortOrder: 'asc' },
+      })
+
+      // Determine which round to show
+      let selectedRoundId = roundId
+      if (!selectedRoundId) {
+        // Pick latest active round, or if none, the most recently closed
+        const activeRound = allRounds.find(r => r.status === 'ROUND_ACTIVE')
+        if (activeRound) {
+          selectedRoundId = activeRound.id
+        } else {
+          const closedRounds = allRounds.filter(r => r.status === 'ROUND_CLOSED' || r.status === 'ROUND_ARCHIVED')
+          if (closedRounds.length > 0) {
+            selectedRoundId = closedRounds[closedRounds.length - 1].id
+          }
+        }
+      }
+
+      if (!selectedRoundId) {
+        return { rounds: allRounds, selectedRoundId: null, byCategory: [], unactivatedProjects: [] }
+      }
+
+      const selectedRound = allRounds.find(r => r.id === selectedRoundId)
+
+      // Find projects that PASSED this specific round
+      const passedStates = await ctx.prisma.projectRoundState.findMany({
+        where: {
+          roundId: selectedRoundId,
+          state: 'PASSED',
+        },
+        select: {
+          projectId: true,
+          project: {
+            select: {
+              id: true,
+              title: true,
+              competitionCategory: true,
+              teamMembers: {
+                select: {
+                  user: {
+                    select: {
+                      id: true,
+                      email: true,
+                      name: true,
+                      status: true,
+                      passwordHash: true,
+                    },
+                  },
+                },
+              },
+            },
+          },
+        },
+      })
+
+      // Group by category
+      const catMap = new Map<string, { total: number; accountsSet: number; accountsNotSet: number }>()
+      for (const ps of passedStates) {
+        const cat = ps.project.competitionCategory || 'UNKNOWN'
+        if (!catMap.has(cat)) catMap.set(cat, { total: 0, accountsSet: 0, accountsNotSet: 0 })
+        const entry = catMap.get(cat)!
+        entry.total++
+        const hasActivated = ps.project.teamMembers.some(
+          (tm) => tm.user.passwordHash !== null || tm.user.status === 'ACTIVE'
+        )
+        if (hasActivated) entry.accountsSet++
+        else entry.accountsNotSet++
+      }
+
+      const byCategory = Array.from(catMap.entries()).map(([category, counts]) => ({
+        category,
+        ...counts,
+      }))
+
+      // Unactivated projects
+      const unactivatedProjects = passedStates
+        .filter((ps) => !ps.project.teamMembers.some(
+          (tm) => tm.user.passwordHash !== null || tm.user.status === 'ACTIVE'
+        ))
+        .map((ps) => ({
+          projectId: ps.projectId,
+          projectTitle: ps.project.title,
+          category: ps.project.competitionCategory,
+          teamEmails: ps.project.teamMembers
+            .filter((tm) => tm.user.passwordHash === null && tm.user.status !== 'ACTIVE')
+            .map((tm) => tm.user.email),
+          roundName: selectedRound?.name ?? '',
+        }))
+
+      return {
+        rounds: allRounds,
+        selectedRoundId,
+        byCategory,
+        unactivatedProjects,
+      }
+    }),
+
   /**
    * Get detailed semi-finalist list for the "See All" page.
    * Returns every project whose latest terminal state is PASSED, with team and round info.
@@ -800,10 +911,11 @@ export const dashboardRouter = router({
       projectIds: z.array(z.string()).optional(),
       category: z.enum(['STARTUP', 'BUSINESS_CONCEPT']).optional(),
       awardId: z.string().optional(),
+      roundId: z.string().optional(),
       editionId: z.string(),
     }))
     .mutation(async ({ ctx, input }) => {
-      const { editionId, projectIds, category, awardId } = input
+      const { editionId, projectIds, category, awardId, roundId } = input
 
       // Build filter for projects
       let targetProjectIds: string[] = projectIds ?? []
@@ -812,7 +924,13 @@ export const dashboardRouter = router({
         // Find PASSED projects matching filters
         const passedWhere: Record<string, unknown> = {
           state: 'PASSED' as const,
-          round: { competition: { programId: editionId } },
+        }
+
+        // If roundId is provided, scope to that specific round; otherwise edition-wide
+        if (roundId) {
+          passedWhere.roundId = roundId
+        } else {
+          passedWhere.round = { competition: { programId: editionId } }
         }
 
         if (category) {