diff --git a/src/app.js b/src/app.js
index 23dad75..55a1a7d 100644
--- a/src/app.js
+++ b/src/app.js
@@ -242,6 +242,7 @@ const TRANSLATIONS = {
     "timing.total_passings": "Totala passeringar",
     "timing.started": "Startad",
     "timing.remaining": "Nedräkning",
+    "timing.elapsed": "Körtid",
     "timing.race_finished": "Race is finished",
     "timing.no_active": "Ingen aktiv session vald.",
     "timing.leaderboard": "Live leaderboard",
@@ -437,6 +438,8 @@ const TRANSLATIONS = {
     "overlay.mode_leaderboard": "Leaderboard",
     "overlay.mode_speaker": "Speaker",
     "overlay.mode_results": "Resultat",
+    "overlay.fastest_lap": "Snabbaste varv",
+    "overlay.fullscreen": "Fullscreen",
     "overlay.event_markers": "Eventmarkörer",
     "guide.host_title": "Hur Managed AMMC körs",
     "guide.host_1": "1. AMMC körs alltid på samma maskin som `npm start` eller `node server.js` körs på.",
@@ -697,6 +700,7 @@ const TRANSLATIONS = {
     "timing.total_passings": "Total passings",
     "timing.started": "Started",
     "timing.remaining": "Countdown",
+    "timing.elapsed": "Elapsed",
     "timing.race_finished": "Race is finished",
     "timing.no_active": "No active session selected.",
     "timing.leaderboard": "Live Leaderboard",
@@ -892,6 +896,8 @@ const TRANSLATIONS = {
     "overlay.mode_leaderboard": "Leaderboard",
     "overlay.mode_speaker": "Speaker",
     "overlay.mode_results": "Results",
+    "overlay.fastest_lap": "Fastest Lap",
+    "overlay.fullscreen": "Fullscreen",
     "overlay.event_markers": "Event markers",
     "guide.host_title": "How Managed AMMC Runs",
     "guide.host_1": "1. AMMC always runs on the same machine where `npm start` or `node server.js` is running.",
@@ -1829,6 +1835,10 @@ function handleSessionTimerTick() {
     return { changed: false };
   }
 
+  if (isUntimedSession(active)) {
+    return { changed: false };
+  }
+
   const timing = getSessionTiming(active);
   if (timing.remainingMs > 0) {
     return { changed: false };
@@ -3074,6 +3084,8 @@ function renderTiming() {
   const result = active ? ensureSessionResult(active.id) : null;
   const leaderboard = active ? buildLeaderboard(active) : [];
   const sessionTiming = active ? getSessionTiming(active) : null;
+  const clockLabel = active && sessionTiming?.untimed ? t("timing.elapsed") : t("timing.remaining");
+  const clockValue = sessionTiming?.untimed ? formatElapsedClock(sessionTiming?.elapsedMs ?? 0) : formatCountdown(sessionTiming?.remainingMs ?? 0);
   const showFinishedBanner = Boolean(active && active.status === "finished" && active.finishedByTimer);
   const selectedRow = leaderboard.find((row) => row.key === selectedLeaderboardKey) || null;
   if (selectedLeaderboardKey && !selectedRow) {
@@ -3127,7 +3139,7 @@ function renderTiming() {
                <p>${t("table.start_mode")}: ${escapeHtml(getStartModeLabel(active.startMode))} • ${t("timing.seeding_mode")}: ${
                   active.seedBestLapCount > 0 ? `${active.seedBestLapCount}` : "-"
                }</p>
-               <p>${t("timing.remaining")}: ${formatCountdown(sessionTiming?.remainingMs ?? 0)}</p>
+               <p>${clockLabel}: ${clockValue}</p>
                <p>${t("timing.total_passings")}: ${result.passings.length}</p>
                ${
                  active.type === "free_practice"
@@ -3448,6 +3460,9 @@ function renderOverlay() {
   const leaderboard = active ? buildLeaderboard(active).slice(0, 12) : [];
   const result = active ? ensureSessionResult(active.id) : null;
   const sessionTiming = active ? getSessionTiming(active) : null;
+  const overlayClock = sessionTiming?.untimed
+    ? formatElapsedClock(sessionTiming?.elapsedMs ?? 0)
+    : formatCountdown(sessionTiming?.remainingMs ?? 0);
   const recent = active && result ? result.passings.slice(-8).reverse() : [];
   const event = active ? state.events.find((item) => item.id === active.eventId) : null;
   const branding = resolveEventBranding(event);
@@ -3455,6 +3470,8 @@ function renderOverlay() {
   const qualifyingRows = event ? buildQualifyingStandings(event) : [];
   const finalRows = event ? buildFinalStandings(event) : [];
   const topRow = leaderboard[0] || null;
+  const fastestRow =
+    [...leaderboard].filter((row) => Number.isFinite(row.bestLapMs)).sort((left, right) => left.bestLapMs - right.bestLapMs)[0] || null;
   const modeLabel = getOverlayModeLabel(overlayViewMode);
 
   dom.view.innerHTML = `
@@ -3470,7 +3487,8 @@ function renderOverlay() {
                 <p>${escapeHtml(branding.brandName)} • ${escapeHtml(getStartModeLabel(active.startMode))} • ${escapeHtml(modeLabel)}</p>
               </div>
               <div class="overlay-meta">
-                <div class="overlay-clock">${formatCountdown(sessionTiming?.remainingMs ?? 0)}</div>
+                <button id="overlayFullscreen" class="btn overlay-fullscreen-btn" type="button">${t("overlay.fullscreen")}</button>
+                <div class="overlay-clock">${overlayClock}</div>
                 <div class="overlay-status">${escapeHtml(getStatusLabel(active.status))}</div>
               </div>
             </header>
@@ -3546,7 +3564,24 @@ function renderOverlay() {
                 `
                 : `
                   <section class="overlay-board">
-                    <div class="overlay-table-wrap">
+                    <div class="overlay-table-wrap overlay-display-wrap">
+                      <section class="overlay-stats-row">
+                        <article class="overlay-stat-card">
+                          <span>${t("overlay.fastest_lap")}</span>
+                          <strong>${formatLap(fastestRow?.bestLapMs)}</strong>
+                          <small>${escapeHtml(fastestRow?.driverName || "-")}</small>
+                        </article>
+                        <article class="overlay-stat-card">
+                          <span>${t("table.laps")}</span>
+                          <strong>${topRow?.laps || 0}</strong>
+                          <small>${escapeHtml(topRow?.driverName || "-")}</small>
+                        </article>
+                        <article class="overlay-stat-card">
+                          <span>${t("timing.total_passings")}</span>
+                          <strong>${result?.passings.length || 0}</strong>
+                          <small>${sessionTiming?.untimed ? t("timing.elapsed") : t("timing.remaining")}</small>
+                        </article>
+                      </section>
                       ${renderOverlayLeaderboard(leaderboard)}
                     </div>
                     <aside class="overlay-side">
@@ -3602,6 +3637,15 @@ function renderOverlay() {
       }
     </section>
   `;
+
+  document.getElementById("overlayFullscreen")?.addEventListener("click", async () => {
+    const target = document.documentElement;
+    if (!document.fullscreenElement) {
+      await target.requestFullscreen?.().catch(() => {});
+      return;
+    }
+    await document.exitFullscreen?.().catch(() => {});
+  });
 }
 
 function renderLeaderboardModal(session, row) {
@@ -4069,11 +4113,18 @@ function getEventName(eventId) {
   return state.events.find((x) => x.id === eventId)?.name || t("common.unknown_event");
 }
 
+function isUntimedSession(session) {
+  return String(session?.type || "").toLowerCase() === "open_practice";
+}
+
 function getActiveSession() {
   return state.sessions.find((s) => s.id === state.activeSessionId) || null;
 }
 
 function getSessionTargetMs(session) {
+  if (isUntimedSession(session)) {
+    return null;
+  }
   return Math.max(1, Number(session?.durationMin || 0)) * 60 * 1000;
 }
 
@@ -4084,7 +4135,8 @@ function getSessionTiming(session, nowTs = Date.now()) {
   return {
     targetMs,
     elapsedMs,
-    remainingMs: Math.max(0, targetMs - elapsedMs),
+    remainingMs: targetMs === null ? null : Math.max(0, targetMs - elapsedMs),
+    untimed: targetMs === null,
   };
 }
 
@@ -4613,6 +4665,20 @@ function formatCountdown(ms) {
   return `${m}:${s}`;
 }
 
+function formatElapsedClock(ms) {
+  const total = Math.max(0, Math.floor(ms / 1000));
+  const h = Math.floor(total / 3600)
+    .toString()
+    .padStart(1, "0");
+  const m = Math.floor((total % 3600) / 60)
+    .toString()
+    .padStart(2, "0");
+  const s = Math.floor(total % 60)
+    .toString()
+    .padStart(2, "0");
+  return `${h}:${m}:${s}`;
+}
+
 function formatRaceClock(ms) {
   const total = Math.max(0, Math.floor(ms));
   const m = Math.floor(total / 60000)
@@ -5711,10 +5777,18 @@ function buildOverlayUrl(mode = "leaderboard") {
 }
 
 function openOverlayWindow(mode = "leaderboard") {
-  const overlayWindow = window.open(buildOverlayUrl(mode), "_blank", "noopener,noreferrer,width=1600,height=900");
+  const width = Math.max(1280, window.screen?.availWidth || 1600);
+  const height = Math.max(720, window.screen?.availHeight || 900);
+  const overlayWindow = window.open(
+    buildOverlayUrl(mode),
+    "_blank",
+    `noopener,noreferrer,popup=yes,left=0,top=0,width=${width},height=${height}`
+  );
   if (!overlayWindow) {
     alert(t("error.print_blocked"));
+    return;
   }
+  overlayWindow.focus();
 }
 
 function applyBumpsForRace(event) {
diff --git a/src/styles.css b/src/styles.css
index 0fb36ad..782812c 100644
--- a/src/styles.css
+++ b/src/styles.css
@@ -630,6 +630,9 @@ select:focus {
 
 .overlay-meta {
   text-align: right;
+  display: grid;
+  justify-items: end;
+  gap: 10px;
 }
 
 .overlay-clock {
@@ -638,6 +641,10 @@ select:focus {
   font-weight: 800;
 }
 
+.overlay-fullscreen-btn {
+  align-self: start;
+}
+
 .overlay-status {
   color: var(--muted);
   text-transform: uppercase;
@@ -696,6 +703,37 @@ select:focus {
   padding: 8px 12px 12px;
 }
 
+.overlay-display-wrap {
+  display: grid;
+  gap: 16px;
+}
+
+.overlay-stats-row {
+  display: grid;
+  grid-template-columns: repeat(3, minmax(0, 1fr));
+  gap: 12px;
+}
+
+.overlay-stat-card {
+  border: 1px solid var(--line);
+  border-radius: 16px;
+  background: linear-gradient(180deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.02));
+  padding: 14px 16px;
+}
+
+.overlay-stat-card span,
+.overlay-stat-card small {
+  display: block;
+  color: var(--muted);
+}
+
+.overlay-stat-card strong {
+  display: block;
+  margin: 8px 0 4px;
+  font-family: Orbitron, sans-serif;
+  font-size: clamp(1.4rem, 2vw, 2.1rem);
+}
+
 .overlay-side {
   display: grid;
   gap: 16px;
@@ -877,6 +915,10 @@ select:focus {
     grid-template-columns: 1fr;
   }
 
+  .overlay-stats-row {
+    grid-template-columns: 1fr;
+  }
+
   .overlay-speaker {
     grid-template-columns: 1fr;
   }