diff --git a/app/routes/to/$organization.$tournament.tsx b/app/routes/to/$organization.$tournament.tsx
index ebeb2f5a1..09c36df4f 100644
--- a/app/routes/to/$organization.$tournament.tsx
+++ b/app/routes/to/$organization.$tournament.tsx
@@ -1,13 +1,20 @@
 // TODO: 404 page that shows other tournaments by the organization
 
-import type { MetaFunction, LoaderFunction } from "remix";
-import { useLoaderData, json, Link } from "remix";
+import { MetaFunction, LoaderFunction, LinksFunction, NavLink } from "remix";
+import { useLoaderData, Outlet } from "remix";
 import invariant from "tiny-invariant";
+import { DiscordIcon } from "~/components/icons/Discord";
+import { TwitterIcon } from "~/components/icons/Twitter";
 import { makeTitle } from "~/utils";
 import {
   findTournamentByNameForUrl,
   FindTournamentByNameForUrlI,
 } from "../../../services/tournament";
+import tournamentStylesUrl from "../../styles/tournament.css";
+
+export const links: LinksFunction = () => {
+  return [{ rel: "stylesheet", href: tournamentStylesUrl }];
+};
 
 export const loader: LoaderFunction = ({ params }) => {
   invariant(
@@ -34,9 +41,124 @@ export const meta: MetaFunction = (props) => {
   };
 };
 
-// https://remix.run/guides/routing#index-routes
-export default function Index() {
+export default function TournamentPage() {
   const data = useLoaderData<FindTournamentByNameForUrlI>();
 
-  return <div className="remix__page">hello</div>;
+  return (
+    // <div className={s.container}>
+    <div className="tournament__container">
+      <InfoBanner />
+      {/* <ActionSection /> */}
+      <div
+        style={{ "--tabs-count": 5 } as Record<string, number>}
+        className="tournament__links-container"
+      >
+        <NavLink className="tournament__nav-link" to="overview">
+          Overview
+        </NavLink>
+        <NavLink className="tournament__nav-link" to="map-pool">
+          Map Pool
+        </NavLink>
+        <NavLink className="tournament__nav-link" to="bracket">
+          Bracket
+        </NavLink>
+        <NavLink className="tournament__nav-link" to="teams">
+          Teams ({data.teams.length})
+        </NavLink>
+        <NavLink className="tournament__nav-link" to="streams">
+          Streams (4)
+        </NavLink>
+      </div>
+      <Outlet />
+    </div>
+  );
+}
+
+export function InfoBanner() {
+  const data = useLoaderData<FindTournamentByNameForUrlI>();
+
+  return (
+    <>
+      <div
+        className="info-banner"
+        style={
+          {
+            "--background": data.bannerBackground,
+            // TODO: do this on backend
+            "--text": `hsl(${data.bannerTextHSLArgs})`,
+            // TODO: and this
+            "--text-transparent": `hsla(${data.bannerTextHSLArgs}, 0.3)`,
+          } as Record<string, string>
+        }
+      >
+        <div className="info-banner__top-row">
+          <div className="info-banner__top-row__date-name">
+            <div className="info-banner__top-row__month-date">
+              <div className="info-banner__top-row__month-date__month">
+                {shortMonthName(data.startTime)}
+              </div>
+              <div className="info-banner__top-row__month-date__date">
+                {dayNumber(data.startTime)}
+              </div>
+            </div>
+            <div className="info-banner__top-row__tournament-name">
+              {data.name}
+            </div>
+          </div>
+          <div className="info-banner__icon-buttons-container">
+            {data.organizer.twitter && (
+              <a
+                className="info-banner__icon-button"
+                href={data.organizer.twitter}
+              >
+                <TwitterIcon />
+              </a>
+            )}
+            <a
+              className="info-banner__icon-button"
+              href={data.organizer.discordInvite}
+            >
+              <DiscordIcon />
+            </a>
+          </div>
+        </div>
+        <div className="info-banner__bottom-row">
+          <div className="info-banner__bottom-row__infos">
+            <div className="info-banner__bottom-row__info-container">
+              <div className="info-banner__bottom-row__info-label">
+                Starting time
+              </div>
+              <div>{weekdayAndStartTime(data.startTime)}</div>
+            </div>
+            <div className="info-banner__bottom-row__info-container">
+              <div className="info-banner__bottom-row__info-label">Format</div>
+              <div>Double Elimination</div>
+            </div>
+            <div className="info-banner__bottom-row__info-container">
+              <div className="info-banner__bottom-row__info-label">
+                Organizer
+              </div>
+              <div>{data.organizer.name}</div>
+            </div>
+          </div>
+        </div>
+      </div>
+    </>
+  );
+}
+
+// TODO: https://github.com/remix-run/remix/issues/656
+function weekdayAndStartTime(date: string) {
+  return new Date(date).toLocaleString("en-US", {
+    weekday: "long",
+    hour: "numeric",
+  });
+}
+
+function shortMonthName(date: string) {
+  return new Date(date).toLocaleString("en-US", { month: "short" });
+}
+
+function dayNumber(date: string) {
+  return new Date(date).toLocaleString("en-US", { day: "numeric" });
 }
diff --git a/app/routes/to/$organization.$tournament/map-pool.tsx b/app/routes/to/$organization.$tournament/map-pool.tsx
new file mode 100644
index 000000000..a964f6212
--- /dev/null
+++ b/app/routes/to/$organization.$tournament/map-pool.tsx
@@ -0,0 +1,68 @@
+import mapPoolStylesUrl from "~/styles/map-pool.css";
+import type { Mode } from ".prisma/client";
+import classNames from "classnames";
+import { modesShort, stages } from "~/utils";
+import { LinksFunction, useMatches } from "remix";
+import { FindTournamentByNameForUrlI } from "../../../../services/tournament";
+
+export const links: LinksFunction = () => {
+  return [{ rel: "stylesheet", href: mapPoolStylesUrl }];
+};
+
+export default function MapPoolTab() {
+  const [, parentRoute] = useMatches();
+  const { mapPool } = parentRoute.data as FindTournamentByNameForUrlI;
+
+  return (
+    <div className="map-pool">
+      <div className="map-pool__info-square">
+        <span className="map-pool__info-square__text">
+          {mapPool.length} maps
+        </span>
+      </div>
+      {stages.map((stage) => (
+        <div key={stage} className="map-pool__stage-images-container">
+          <img
+            className={classNames("map-pool__stage-image", {
+              "map-pool__stage-image-disabled": !modesPerStage(mapPool)[stage],
+            })}
+            loading="lazy"
+            alt={stage}
+            src={`/img/stages/${stage.replaceAll(" ", "-").toLowerCase()}.webp`}
+          />
+          {modesPerStage(mapPool)[stage] && (
+            <div className="map-pool__mode-images-container">
+              {modesShort.map(
+                (mode) =>
+                  modesPerStage(mapPool)[stage]?.includes(mode as Mode) && (
+                    <img
+                      key={mode}
+                      className="map-pool__mode-image"
+                      src={`/img/modes/${mode}.webp`}
+                      alt={mode}
+                    />
+                  )
+              )}
+            </div>
+          )}
+        </div>
+      ))}
+    </div>
+  );
+}
+
+export function modesPerStage(
+  mapPool: {
+    name: string;
+    mode: Mode;
+  }[]
+) {
+  return mapPool.reduce((acc: Record<string, Mode[]>, { name, mode }) => {
+    if (!acc[name]) {
+      acc[name] = [];
+    }
+
+    acc[name].push(mode);
+    return acc;
+  }, {});
+}
diff --git a/app/styles/map-pool.css b/app/styles/map-pool.css
new file mode 100644
index 000000000..eff696252
--- /dev/null
+++ b/app/styles/map-pool.css
@@ -0,0 +1,62 @@
+.map-pool__info-square {
+  display: grid;
+  background-color: var(--bg-lighter);
+  background-image: url("/svg/background-pattern.svg");
+  border-radius: var(--rounded);
+  font-size: var(--fonts-xl);
+  font-weight: var(--semi-bold);
+  place-items: center;
+}
+
+.map-pool {
+  display: grid;
+  gap: 1rem;
+  grid-template-columns: 1fr 1fr;
+}
+
+.map-pool__info-square__text {
+  font-weight: var(--bold);
+}
+
+.map-pool__stage-images-container {
+  position: relative;
+}
+
+.map-pool__stage-image {
+  width: 100%;
+  height: 100%;
+  border-radius: var(--rounded);
+}
+
+.map-pool__mode-image {
+  width: 1.5rem;
+  height: 1.5rem;
+}
+
+.map-pool__stage-image-disabled {
+  filter: grayscale(100%);
+}
+
+.map-pool__mode-images-container {
+  position: absolute;
+  display: flex;
+  padding: var(--s-1);
+  backdrop-filter: blur(5px) grayscale(25%);
+  border-end-end-radius: var(--rounded);
+  border-start-start-radius: var(--rounded);
+  gap: var(--s-2);
+  inset-block-start: 0;
+  inset-inline-start: 0;
+}
+
+@media screen and (min-width: 480px) {
+  .map-pool {
+    grid-template-columns: 1fr 1fr;
+  }
+}
+
+@media screen and (min-width: 640px) {
+  .map-pool {
+    grid-template-columns: repeat(4, minmax(1px, 200px));
+  }
+}
diff --git a/app/styles/tournament.css b/app/styles/tournament.css
new file mode 100644
index 000000000..46d6230be
--- /dev/null
+++ b/app/styles/tournament.css
@@ -0,0 +1,160 @@
+.tournament__container {
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+}
+
+.tournament__links-container {
+  display: grid;
+  justify-content: center;
+  gap: var(--s-10);
+  grid-template-columns: repeat(2, 100px);
+  padding-block: var(--s-8);
+  place-items: center;
+}
+
+.tournament__nav-link {
+  all: unset;
+  border-radius: var(--rounded);
+  cursor: pointer;
+  font-size: var(--fonts-sm);
+}
+
+.tournament__nav-link::after {
+  display: block;
+  width: 1.25rem;
+  height: 3px;
+  border-bottom: 3px solid transparent;
+  content: "";
+}
+
+.tournament__nav-link:hover::after {
+  border-color: var(--theme-transparent);
+}
+
+.tournament__nav-link.active {
+  font-weight: bold;
+}
+
+.tournament__nav-link.active::after {
+  width: 1.25rem;
+  border-color: var(--theme);
+}
+
+.info-banner {
+  width: 100%;
+  padding: var(--s-6);
+  background: var(--background);
+  border-radius: var(--rounded);
+  color: var(--text);
+}
+
+.info-banner__top-row {
+  display: flex;
+  flex-wrap: wrap;
+  justify-content: space-between;
+  gap: var(--s-4);
+}
+
+.info-banner__top-row__date-name {
+  display: flex;
+  align-items: center;
+  gap: var(--s-4);
+}
+
+.info-banner__top-row__month-date {
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  line-height: 1.25;
+}
+
+.info-banner__top-row__month-date__month {
+  font-size: var(--fonts-xs);
+  text-transform: uppercase;
+}
+
+.info-banner__top-row__month-date__date {
+  font-size: var(--fonts-lg);
+  font-weight: var(--bold);
+}
+
+.info-banner__top-row__tournament-name {
+  border-color: var(--text);
+  border-inline-start: 1px solid;
+  font-size: var(--fonts-xl);
+  font-weight: var(--extra-bold);
+  padding-inline-start: var(--s-4);
+}
+
+.info-banner__bottom-row {
+  display: flex;
+  flex-direction: column;
+  justify-content: space-between;
+  gap: var(--s-4);
+}
+
+.info-banner__bottom-row__infos {
+  display: flex;
+  flex-wrap: wrap;
+  gap: var(--s-4);
+  margin-block-start: var(--s-8);
+}
+
+.info-banner__icon-buttons-container {
+  display: flex;
+  gap: var(--s-4);
+}
+
+.info-banner__bottom-row__info-container {
+  font-size: var(--fonts-xs);
+}
+
+.info-banner__bottom-row__info-label {
+  font-weight: var(--extra-bold);
+}
+
+.info-banner__icon-button {
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  padding: 0.5rem;
+  border: 1px solid;
+  border-color: var(--text-transparent);
+  block-size: 2.25rem;
+  border-radius: 50%;
+  color: inherit;
+  inline-size: 2.25rem;
+  transition: background-color 0.3s;
+}
+
+.info-banner__icon-button:active {
+  transform: translateY(1px);
+}
+
+@media screen and (min-width: 480px) {
+  .tournament__links-container {
+    grid-template-columns: repeat(3, 100px);
+  }
+
+  .info-banner__bottom-row__infos {
+    gap: var(--s-8);
+  }
+}
+
+@media screen and (min-width: 640px) {
+  .tournament__links-container {
+    grid-template-columns: repeat(var(--tabs-count), 100px);
+  }
+
+  .info-banner__bottom-row {
+    flex-direction: row;
+    align-items: flex-end;
+  }
+}
+
+@media screen and (min-width: 768px) {
+  .info-banner {
+    width: 48rem;
+  }
+}
diff --git a/app/utils.ts b/app/utils.ts
index 86f32d37a..0b7652925 100644
--- a/app/utils.ts
+++ b/app/utils.ts
@@ -1,3 +1,31 @@
+export const stages = [
+  "The Reef",
+  "Musselforge Fitness",
+  "Starfish Mainstage",
+  "Humpback Pump Track",
+  "Inkblot Art Academy",
+  "Sturgeon Shipyard",
+  "Moray Towers",
+  "Port Mackerel",
+  "Manta Maria",
+  "Kelp Dome",
+  "Snapper Canal",
+  "Blackbelly Skatepark",
+  "MakoMart",
+  "Walleye Warehouse",
+  "Shellendorf Institute",
+  "Arowana Mall",
+  "Goby Arena",
+  "Piranha Pit",
+  "Camp Triggerfish",
+  "Wahoo World",
+  "New Albacore Hotel",
+  "Ancho-V Games",
+  "Skipper Pavilion",
+];
+
+export const modesShort = ["TW", "SZ", "TC", "RM", "CB"];
+
 export const navItems = [
   {
     title: "builds",
@@ -18,3 +46,10 @@ export const navItems = [
 ];
 
 export const makeTitle = (endOfTitle: string) => `sendou.ink | ${endOfTitle}`;
+
+export type Serialized<T> = {
+  [P in keyof T]: T[P] extends Date ? string : Serialized<T[P]>;
+};
+
+// TODO:
+// export type InferredSerializedAPI<T> = Serialized<Prisma.PromiseReturnType<T>>;
diff --git a/services/tournament.ts b/services/tournament.ts
index 54af4a21e..c97e8ded9 100644
--- a/services/tournament.ts
+++ b/services/tournament.ts
@@ -1,9 +1,10 @@
 import { Prisma } from ".prisma/client";
-import { json } from "@remix-run/server-runtime";
+import { json } from "remix";
+import { Serialized } from "~/utils";
 import prisma from "../prisma/client";
 
-export type FindTournamentByNameForUrlI = Prisma.PromiseReturnType<
-  typeof findTournamentByNameForUrl
+export type FindTournamentByNameForUrlI = Serialized<
+  Prisma.PromiseReturnType<typeof findTournamentByNameForUrl>
 >;
 
 export async function findTournamentByNameForUrl({
diff --git a/tsconfig.json b/tsconfig.json
index 705bb4a24..c93b82938 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -1,7 +1,7 @@
 {
   "include": ["remix.env.d.ts", "**/*.ts", "**/*.tsx"],
   "compilerOptions": {
-    "lib": ["DOM", "DOM.Iterable", "ES2019"],
+    "lib": ["DOM", "DOM.Iterable", "ES2019", "es2021"],
     "esModuleInterop": true,
     "jsx": "react-jsx",
     "moduleResolution": "node",