diff --git a/apps/admin/src/App.tsx b/apps/admin/src/App.tsx
index 6156417..359d4d0 100644
--- a/apps/admin/src/App.tsx
+++ b/apps/admin/src/App.tsx
@@ -5,6 +5,7 @@ import Sidebar from './components/Sidebar';
 import Live from './screens/Live';
 import Activities from './screens/Activities';
 import Sessions from './screens/Sessions';
+import Reports from './screens/Reports';
 
 function AuthedShell() {
   return (
@@ -16,6 +17,7 @@ function AuthedShell() {
             <Route path="/" element={<Live />} />
             <Route path="/handelingen" element={<Activities />} />
             <Route path="/sessies" element={<Sessions />} />
+            <Route path="/rapporten" element={<Reports />} />
           </Routes>
         </main>
       </div>
diff --git a/apps/admin/src/components/Sidebar.tsx b/apps/admin/src/components/Sidebar.tsx
index 86b4a52..4f1bd45 100644
--- a/apps/admin/src/components/Sidebar.tsx
+++ b/apps/admin/src/components/Sidebar.tsx
@@ -6,10 +6,11 @@ const navItems = [
   { to: '/', label: 'Live' },
   { to: '/handelingen', label: 'Handelingen' },
   { to: '/sessies', label: 'Sessies' },
+  { to: '/rapporten', label: 'Rapporten' },
 ] as const;
 
-// Sections planned for Phase 3b — shown muted/disabled as a hint of what's coming.
-const soonItems = ['Rapporten', 'Gebruikers'] as const;
+// Sections planned for the final Phase 3b cycle — shown muted/disabled.
+const soonItems = ['Gebruikers'] as const;
 
 export default function Sidebar() {
   const { signOut } = useAuth();
diff --git a/apps/admin/src/lib/date-range.test.ts b/apps/admin/src/lib/date-range.test.ts
new file mode 100644
index 0000000..695eb1a
--- /dev/null
+++ b/apps/admin/src/lib/date-range.test.ts
@@ -0,0 +1,28 @@
+import { describe, expect, it } from 'vitest';
+import { dayStartISO, dayEndISO, thisWeek, thisMonth } from './date-range';
+
+describe('date-range helpers', () => {
+  it('dayStartISO/dayEndISO bound a local day', () => {
+    const start = new Date(dayStartISO('2026-06-17'));
+    const end = new Date(dayEndISO('2026-06-17'));
+    expect(start.getHours()).toBe(0);
+    expect(start.getMinutes()).toBe(0);
+    expect(end.getHours()).toBe(23);
+    expect(end.getMinutes()).toBe(59);
+    expect(end.getTime()).toBeGreaterThan(start.getTime());
+  });
+
+  it('thisWeek returns Monday..today (from/to are YYYY-MM-DD)', () => {
+    const ref = new Date('2026-06-17T12:00:00'); // a Wednesday
+    const { from, to } = thisWeek(ref);
+    expect(from).toBe('2026-06-15'); // Monday
+    expect(to).toBe('2026-06-17');
+  });
+
+  it('thisMonth returns the 1st..today', () => {
+    const ref = new Date('2026-06-17T12:00:00');
+    const { from, to } = thisMonth(ref);
+    expect(from).toBe('2026-06-01');
+    expect(to).toBe('2026-06-17');
+  });
+});
diff --git a/apps/admin/src/lib/date-range.ts b/apps/admin/src/lib/date-range.ts
new file mode 100644
index 0000000..dfd4c8a
--- /dev/null
+++ b/apps/admin/src/lib/date-range.ts
@@ -0,0 +1,40 @@
+// Helpers for the report filter bar. Dates are 'YYYY-MM-DD' (what <input type="date"> uses);
+// the *ISO instants* sent to the API are derived in the admin's local timezone so a picked
+// day means that whole local day.
+
+function pad(n: number): string {
+  return String(n).padStart(2, '0');
+}
+
+export function toDateStr(d: Date): string {
+  return `${d.getFullYear()}-${pad(d.getMonth() + 1)}-${pad(d.getDate())}`;
+}
+
+// Start of the given local day, as an ISO instant.
+export function dayStartISO(dateStr: string): string {
+  const [y, m, d] = dateStr.split('-').map(Number);
+  return new Date(y, m - 1, d, 0, 0, 0, 0).toISOString();
+}
+
+// End of the given local day, as an ISO instant.
+export function dayEndISO(dateStr: string): string {
+  const [y, m, d] = dateStr.split('-').map(Number);
+  return new Date(y, m - 1, d, 23, 59, 59, 999).toISOString();
+}
+
+export function thisWeek(ref: Date): { from: string; to: string } {
+  const day = ref.getDay(); // 0=Sun..6=Sat
+  const diffToMonday = (day + 6) % 7;
+  const monday = new Date(ref.getFullYear(), ref.getMonth(), ref.getDate() - diffToMonday);
+  return { from: toDateStr(monday), to: toDateStr(ref) };
+}
+
+export function thisMonth(ref: Date): { from: string; to: string } {
+  const first = new Date(ref.getFullYear(), ref.getMonth(), 1);
+  return { from: toDateStr(first), to: toDateStr(ref) };
+}
+
+// 'Alles' — a wide window from epoch-ish to today.
+export function allTime(ref: Date): { from: string; to: string } {
+  return { from: '2000-01-01', to: toDateStr(ref) };
+}
diff --git a/apps/admin/src/screens/Reports.test.tsx b/apps/admin/src/screens/Reports.test.tsx
new file mode 100644
index 0000000..290bed1
--- /dev/null
+++ b/apps/admin/src/screens/Reports.test.tsx
@@ -0,0 +1,130 @@
+import { render, screen, waitFor } from '@testing-library/react';
+import userEvent from '@testing-library/user-event';
+import { afterEach, beforeEach, describe, expect, it, vi } from 'vitest';
+import { QueryClient, QueryClientProvider } from '@tanstack/react-query';
+import type { ReportResponse } from '@solelog/shared';
+import Reports from './Reports';
+import { apiFetch } from '../lib/api';
+import * as reportsApi from '../api/reports';
+
+vi.mock('../lib/api', () => ({ apiFetch: vi.fn(), API_URL: 'http://test' }));
+const mockApiFetch = vi.mocked(apiFetch);
+
+const REPORT: ReportResponse = {
+  range: { from: '2026-06-15T00:00:00.000Z', to: '2026-06-17T21:59:59.999Z' },
+  totals: { worked_seconds: 7800, paused_seconds: 600, pairs: 84, sessions: 36 },
+  by_worker: [
+    {
+      user_id: 'u1',
+      user_name: 'Jan',
+      worked_seconds: 4500,
+      paused_seconds: 300,
+      pairs: 48,
+      sessions: 21,
+    },
+    {
+      user_id: 'u2',
+      user_name: 'An',
+      worked_seconds: 3300,
+      paused_seconds: 300,
+      pairs: 36,
+      sessions: 15,
+    },
+  ],
+  by_activity: [
+    {
+      activity_id: 1,
+      activity_name: 'Frezen',
+      worked_seconds: 4900,
+      paused_seconds: 200,
+      pairs: 40,
+      sessions: 18,
+    },
+    {
+      activity_id: 2,
+      activity_name: 'Lijmen',
+      worked_seconds: 2900,
+      paused_seconds: 400,
+      pairs: 44,
+      sessions: 18,
+    },
+  ],
+  by_type: [
+    { insole_type: 'Kurk', worked_seconds: 5000, paused_seconds: 300, pairs: 50, sessions: 20 },
+    { insole_type: 'Berk', worked_seconds: 2800, paused_seconds: 300, pairs: 34, sessions: 16 },
+  ],
+};
+
+function mockEndpoints() {
+  mockApiFetch.mockImplementation((path?: string) => {
+    if (path?.startsWith('/api/admin/report')) return Promise.resolve(REPORT as never);
+    if (path === '/api/admin/users')
+      return Promise.resolve([{ id: 'u1', name: 'Jan', email: 'jan@x' }] as never);
+    if (path === '/api/activities') return Promise.resolve([] as never);
+    return Promise.resolve([] as never);
+  });
+}
+
+function renderReports() {
+  const queryClient = new QueryClient({ defaultOptions: { queries: { retry: false } } });
+  return render(
+    <QueryClientProvider client={queryClient}>
+      <Reports />
+    </QueryClientProvider>,
+  );
+}
+
+describe('Reports', () => {
+  beforeEach(() => mockApiFetch.mockReset());
+  afterEach(() => vi.clearAllMocks());
+
+  it('renders headline totals and the three breakdown tables', async () => {
+    mockEndpoints();
+    renderReports();
+
+    // Headline: 7800s = 02:10:00 worked, 84 zolen, 36 sessies.
+    const headline = await screen.findByText(/02:10:00/);
+    const totals = headline.closest('.reports-totals') as HTMLElement;
+    expect(totals).toHaveTextContent(/84/);
+    expect(totals).toHaveTextContent(/36/);
+
+    expect(screen.getByText('Per medewerker')).toBeInTheDocument();
+    expect(screen.getByText('Per handeling')).toBeInTheDocument();
+    expect(screen.getByText('Per type')).toBeInTheDocument();
+    // Names are scoped to table cells: 'Jan' / 'Kurk' also appear as dropdown options.
+    expect(screen.getByRole('cell', { name: 'Jan' })).toBeInTheDocument();
+    expect(screen.getByRole('cell', { name: 'Frezen' })).toBeInTheDocument();
+    expect(screen.getByRole('cell', { name: 'Kurk' })).toBeInTheDocument();
+  });
+
+  it('refetches with new params when a preset is clicked', async () => {
+    mockEndpoints();
+    renderReports();
+    await screen.findByRole('cell', { name: 'Jan' });
+
+    const callsBefore = mockApiFetch.mock.calls.filter((c) =>
+      String(c[0]).startsWith('/api/admin/report'),
+    ).length;
+    await userEvent.click(screen.getByRole('button', { name: 'Deze maand' }));
+
+    await waitFor(() => {
+      const reportCalls = mockApiFetch.mock.calls.filter((c) =>
+        String(c[0]).startsWith('/api/admin/report'),
+      );
+      expect(reportCalls.length).toBeGreaterThan(callsBefore);
+    });
+  });
+
+  it('calls downloadExport with the current filters when Exporteer CSV is clicked', async () => {
+    mockEndpoints();
+    const spy = vi.spyOn(reportsApi, 'downloadExport').mockResolvedValue();
+    renderReports();
+    await screen.findByRole('cell', { name: 'Jan' });
+
+    await userEvent.click(screen.getByRole('button', { name: 'Exporteer CSV' }));
+    expect(spy).toHaveBeenCalledTimes(1);
+    const arg = spy.mock.calls[0][0];
+    expect(arg.from).toBeTruthy();
+    expect(arg.to).toBeTruthy();
+  });
+});
diff --git a/apps/admin/src/screens/Reports.tsx b/apps/admin/src/screens/Reports.tsx
new file mode 100644
index 0000000..4dba152
--- /dev/null
+++ b/apps/admin/src/screens/Reports.tsx
@@ -0,0 +1,211 @@
+import { useMemo, useState } from 'react';
+import type { InsoleType, ReportTotals } from '@solelog/shared';
+import { useReport, type ReportFilters } from '../api/reports';
+import * as reportsApi from '../api/reports';
+import { useAdminUsers } from '../api/admin-sessions';
+import { useActivities } from '../api/activities';
+import { formatTime } from '../lib/elapsed';
+import { allTime, dayEndISO, dayStartISO, thisMonth, thisWeek, toDateStr } from '../lib/date-range';
+
+type DateRange = { from: string; to: string }; // YYYY-MM-DD
+
+const TYPES: InsoleType[] = ['Kurk', 'Berk', '3D'];
+
+export default function Reports() {
+  const [range, setRange] = useState<DateRange>(() => thisWeek(new Date()));
+  const [userId, setUserId] = useState('');
+  const [insoleType, setInsoleType] = useState('');
+  const [activityId, setActivityId] = useState('');
+
+  const filters: ReportFilters = useMemo(
+    () => ({
+      from: dayStartISO(range.from),
+      to: dayEndISO(range.to),
+      userId: userId || undefined,
+      insoleType: insoleType || undefined,
+      activityId: activityId ? Number(activityId) : undefined,
+    }),
+    [range, userId, insoleType, activityId],
+  );
+
+  const reportQuery = useReport(filters);
+  const usersQuery = useAdminUsers();
+  const activitiesQuery = useActivities();
+  const [exportError, setExportError] = useState<string | null>(null);
+
+  async function onExport() {
+    setExportError(null);
+    try {
+      await reportsApi.downloadExport(filters);
+    } catch {
+      setExportError('Export mislukt. Probeer opnieuw.');
+    }
+  }
+
+  const t = reportQuery.data?.totals;
+
+  return (
+    <div className="screen">
+      <div className="reports-head">
+        <h1 className="screen-title">Rapporten</h1>
+        <button type="button" className="btn-primary" onClick={onExport}>
+          Exporteer CSV
+        </button>
+      </div>
+
+      <div className="reports-filters">
+        <div className="reports-presets">
+          <button type="button" onClick={() => setRange(thisWeek(new Date()))}>
+            Deze week
+          </button>
+          <button type="button" onClick={() => setRange(thisMonth(new Date()))}>
+            Deze maand
+          </button>
+          <button type="button" onClick={() => setRange(allTime(new Date()))}>
+            Alles
+          </button>
+        </div>
+        <label>
+          Van
+          <input
+            type="date"
+            value={range.from}
+            max={range.to}
+            onChange={(e) => setRange((r) => ({ ...r, from: e.target.value }))}
+          />
+        </label>
+        <label>
+          Tot
+          <input
+            type="date"
+            value={range.to}
+            min={range.from}
+            max={toDateStr(new Date())}
+            onChange={(e) => setRange((r) => ({ ...r, to: e.target.value }))}
+          />
+        </label>
+        <label>
+          Medewerker
+          <select value={userId} onChange={(e) => setUserId(e.target.value)}>
+            <option value="">Alle</option>
+            {(usersQuery.data ?? []).map((u) => (
+              <option key={u.id} value={u.id}>
+                {u.name}
+              </option>
+            ))}
+          </select>
+        </label>
+        <label>
+          Type
+          <select value={insoleType} onChange={(e) => setInsoleType(e.target.value)}>
+            <option value="">Alle</option>
+            {TYPES.map((ty) => (
+              <option key={ty} value={ty}>
+                {ty}
+              </option>
+            ))}
+          </select>
+        </label>
+        <label>
+          Handeling
+          <select value={activityId} onChange={(e) => setActivityId(e.target.value)}>
+            <option value="">Alle</option>
+            {(activitiesQuery.data ?? []).map((a) => (
+              <option key={a.id} value={String(a.id)}>
+                {a.name}
+              </option>
+            ))}
+          </select>
+        </label>
+      </div>
+
+      {exportError && <p className="form-error">{exportError}</p>}
+
+      {reportQuery.isLoading ? (
+        <p className="muted">Laden…</p>
+      ) : reportQuery.isError ? (
+        <p className="muted">Kon rapport niet laden.</p>
+      ) : (
+        <>
+          <div className="reports-totals">
+            <strong>{formatTime(t?.worked_seconds ?? 0)}</strong> gewerkt ·{' '}
+            <strong>{t?.pairs ?? 0}</strong> zolen · <strong>{t?.sessions ?? 0}</strong> sessies ·{' '}
+            <strong>{formatTime(t?.paused_seconds ?? 0)}</strong> pauze
+          </div>
+
+          <BreakdownTable
+            title="Per medewerker"
+            label="Medewerker"
+            rows={(reportQuery.data?.by_worker ?? []).map((r) => ({
+              key: r.user_id,
+              name: r.user_name,
+              ...r,
+            }))}
+          />
+          <BreakdownTable
+            title="Per handeling"
+            label="Handeling"
+            rows={(reportQuery.data?.by_activity ?? []).map((r) => ({
+              key: String(r.activity_id),
+              name: r.activity_name,
+              ...r,
+            }))}
+          />
+          <BreakdownTable
+            title="Per type"
+            label="Type"
+            rows={(reportQuery.data?.by_type ?? []).map((r) => ({
+              key: r.insole_type,
+              name: r.insole_type,
+              ...r,
+            }))}
+          />
+        </>
+      )}
+    </div>
+  );
+}
+
+type BreakdownRow = ReportTotals & { key: string; name: string };
+
+function BreakdownTable({
+  title,
+  label,
+  rows,
+}: {
+  title: string;
+  label: string;
+  rows: BreakdownRow[];
+}) {
+  return (
+    <section className="reports-section">
+      <h2 className="reports-section-title">{title}</h2>
+      {rows.length === 0 ? (
+        <p className="muted">Geen gegevens.</p>
+      ) : (
+        <table className="reports-table">
+          <thead>
+            <tr>
+              <th>{label}</th>
+              <th>Gewerkt</th>
+              <th>Zolen</th>
+              <th>Sessies</th>
+              <th>Pauze</th>
+            </tr>
+          </thead>
+          <tbody>
+            {rows.map((r) => (
+              <tr key={r.key}>
+                <td>{r.name}</td>
+                <td>{formatTime(r.worked_seconds)}</td>
+                <td>{r.pairs}</td>
+                <td>{r.sessions}</td>
+                <td>{formatTime(r.paused_seconds)}</td>
+              </tr>
+            ))}
+          </tbody>
+        </table>
+      )}
+    </section>
+  );
+}
diff --git a/apps/admin/src/styles.css b/apps/admin/src/styles.css
index 228eadf..d525dac 100644
--- a/apps/admin/src/styles.css
+++ b/apps/admin/src/styles.css
@@ -620,3 +620,54 @@ body {
   color: var(--text-muted);
   font-variant-numeric: tabular-nums;
 }
+
+.reports-head {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  gap: 1rem;
+}
+.reports-filters {
+  display: flex;
+  flex-wrap: wrap;
+  align-items: flex-end;
+  gap: 0.75rem;
+  margin: 1rem 0;
+}
+.reports-filters label {
+  display: flex;
+  flex-direction: column;
+  font-size: 0.8rem;
+  gap: 0.25rem;
+}
+.reports-presets {
+  display: flex;
+  gap: 0.5rem;
+}
+.reports-totals {
+  padding: 0.75rem 1rem;
+  background: var(--surface, #f4f4f5);
+  border-radius: 0.5rem;
+  margin-bottom: 1.5rem;
+}
+.reports-section {
+  margin-bottom: 1.5rem;
+}
+.reports-section-title {
+  font-size: 1rem;
+  margin-bottom: 0.5rem;
+}
+.reports-table {
+  width: 100%;
+  border-collapse: collapse;
+}
+.reports-table th,
+.reports-table td {
+  text-align: left;
+  padding: 0.4rem 0.6rem;
+  border-bottom: 1px solid var(--border, #e4e4e7);
+}
+.reports-table td:not(:first-child),
+.reports-table th:not(:first-child) {
+  text-align: right;
+}