diff --git a/src/components/event/GroupDisplay.svelte b/src/components/event/GroupDisplay.svelte
index 9ac8a4b..172ed92 100644
--- a/src/components/event/GroupDisplay.svelte
+++ b/src/components/event/GroupDisplay.svelte
@@ -15,12 +15,10 @@
         config: GroupViewConfig;
     } = $props();
 
-    // Groups fights into rounds: a round starts at the first fight's start;
-    // all fights starting within 10 minutes (600_000 ms) of that are in the same round.
-    function detectRounds(fights: EventFight[]): EventFight[][] {
+    function detectRounds(fights: EventFight[], groupingTimeMinutes: number): EventFight[][] {
         if (!fights || fights.length === 0) return [];
 
-        const TEN_MIN_MS = 10 * 60 * 1000;
+        const groupingTimeMs = Math.max(1, Math.floor(groupingTimeMinutes || 10)) * 60 * 1000;
         const sorted = [...fights].sort((a, b) => a.start - b.start);
 
         const rounds: EventFight[][] = [];
@@ -28,7 +26,7 @@
         let roundStart = sorted[0].start;
 
         for (const fight of sorted) {
-            if (fight.start - roundStart <= TEN_MIN_MS) {
+            if (fight.start - roundStart <= groupingTimeMs) {
                 currentRound.push(fight);
             } else {
                 if (currentRound.length) rounds.push(currentRound);
@@ -61,8 +59,9 @@
 {#each config.groups as groupId}
     {@const group = event.groups.find((g) => g.id === groupId)!!}
     {@const fights = event.fights.filter((f) => f.group?.id === groupId)}
-    {@const rounds = detectRounds(fights)}
+    {@const rounds = detectRounds(fights, config.roundGroupingTimeMinutes ?? 10)}
     {@const roundRows = config.roundRows ?? 1}
+    {@const roundPrefix = config.roundPrefix ?? "Runde"}
     {@const roundRowsChunked = chunkIntoRows(rounds, roundRows)}
     <div class="flex">
         <div>
@@ -83,7 +82,7 @@
                         {@const roundIndex = rounds.indexOf(round)}
                         {@const teams = Array.from(new Set(round.flatMap((f) => [f.redTeam, f.blueTeam])))}
                         <div class="{hover.currentHover && !teams.some((t) => t?.id === hover.currentHover) ? 'opacity-30' : ''} transition-opacity">
-                            <EventCard title="Runde {roundIndex + 1}">
+                            <EventCard title={`${roundPrefix} ${roundIndex + 1}`}>
                                 {#each round as fight}
                                     <EventFightChip {event} {fight} {group} />
                                 {/each}
diff --git a/src/components/event/types.ts b/src/components/event/types.ts
index 853ed25..8b0aa11 100644
--- a/src/components/event/types.ts
+++ b/src/components/event/types.ts
@@ -4,6 +4,8 @@ export const GroupViewSchema = z.object({
     type: z.literal("GROUP"),
     groups: z.array(z.number()),
     roundRows: z.number().int().positive().optional().default(1),
+    roundGroupingTimeMinutes: z.number().int().positive().optional().default(10),
+    roundPrefix: z.enum(["Runde", "Tag"]).optional().default("Runde"),
 });
 
 export type GroupViewConfig = z.infer<typeof GroupViewSchema>;
diff --git a/src/components/moderator/pages/pages/frontmatter/ViewConfigEditor.svelte b/src/components/moderator/pages/pages/frontmatter/ViewConfigEditor.svelte
index 05c325a..5b8d33a 100644
--- a/src/components/moderator/pages/pages/frontmatter/ViewConfigEditor.svelte
+++ b/src/components/moderator/pages/pages/frontmatter/ViewConfigEditor.svelte
@@ -7,10 +7,18 @@
     import { Plus, Trash2 } from "lucide-svelte";
 
     type StageType = "GROUP" | "ELEMINATION" | "DOUBLE_ELEMINATION";
+    type RoundPrefix = "Runde" | "Tag";
+    const roundGroupingTimeOptions = [
+        { label: "10 Minutes", value: 10 },
+        { label: "30 Minutes", value: 30 },
+        { label: "1 Hour", value: 60 },
+        { label: "2 Hours", value: 120 },
+        { label: "12 Hours", value: 720 },
+    ];
     type StageConfig = {
         name: string;
         view:
-            | { type: "GROUP"; groups: number[]; roundRows?: number }
+            | { type: "GROUP"; groups: number[]; roundRows?: number; roundGroupingTimeMinutes?: number; roundPrefix?: RoundPrefix }
             | { type: "ELEMINATION"; finalFight: number }
             | { type: "DOUBLE_ELEMINATION"; winnersFinalFight: number; losersFinalFight: number; grandFinalFight: number };
     };
@@ -68,7 +76,7 @@
 
             draft[key] = {
                 name: "New stage",
-                view: { type: "GROUP", groups: [], roundRows: 1 },
+                view: { type: "GROUP", groups: [], roundRows: 1, roundGroupingTimeMinutes: 10, roundPrefix: "Runde" },
             };
         });
     }
@@ -105,7 +113,7 @@
     function setStageType(key: string, type: StageType, event?: ExtendedEvent) {
         nextConfig((draft) => {
             if (type === "GROUP") {
-                draft[key].view = { type, groups: [], roundRows: 1 };
+                draft[key].view = { type, groups: [], roundRows: 1, roundGroupingTimeMinutes: 10, roundPrefix: "Runde" };
             } else if (type === "ELEMINATION") {
                 draft[key].view = { type, finalFight: event?.fights[0]?.id ?? 0 };
             } else {
@@ -139,6 +147,24 @@
         });
     }
 
+    function setRoundGroupingTimeMinutes(key: string, value: string) {
+        nextConfig((draft) => {
+            const view = draft[key].view;
+            if (view.type === "GROUP") {
+                view.roundGroupingTimeMinutes = Math.max(1, Math.floor(Number(value) || 10));
+            }
+        });
+    }
+
+    function setRoundPrefix(key: string, value: RoundPrefix) {
+        nextConfig((draft) => {
+            const view = draft[key].view;
+            if (view.type === "GROUP") {
+                view.roundPrefix = value;
+            }
+        });
+    }
+
     function setFightParam(key: string, param: "finalFight" | "winnersFinalFight" | "losersFinalFight" | "grandFinalFight", fightId: string) {
         nextConfig((draft) => {
             const view = draft[key].view as Record<string, unknown>;
@@ -235,6 +261,29 @@
                                     <Label>Round rows</Label>
                                     <Input type="number" min="1" value={stage.view.roundRows ?? 1} onchange={(event) => setRoundRows(key, (event.currentTarget as HTMLInputElement).value)} />
                                 </div>
+                                <div class="space-y-1">
+                                    <Label>Round grouping time (minutes)</Label>
+                                    <select
+                                        class="h-9 w-full rounded-md border border-neutral-800 bg-neutral-900 px-3 text-sm outline-none focus-visible:ring-2 focus-visible:ring-ring"
+                                        value={(stage.view.roundGroupingTimeMinutes ?? 10).toString()}
+                                        onchange={(event) => setRoundGroupingTimeMinutes(key, (event.currentTarget as HTMLSelectElement).value)}
+                                    >
+                                        {#each roundGroupingTimeOptions as option}
+                                            <option value={option.value.toString()}>{option.label}</option>
+                                        {/each}
+                                    </select>
+                                </div>
+                                <div class="space-y-1">
+                                    <Label>Round prefix</Label>
+                                    <select
+                                        class="h-9 w-full rounded-md border border-neutral-800 bg-neutral-900 px-3 text-sm outline-none focus-visible:ring-2 focus-visible:ring-ring"
+                                        value={stage.view.roundPrefix ?? "Runde"}
+                                        onchange={(event) => setRoundPrefix(key, (event.currentTarget as HTMLSelectElement).value as RoundPrefix)}
+                                    >
+                                        <option value="Runde">Runde</option>
+                                        <option value="Tag">Tag</option>
+                                    </select>
+                                </div>
                             </div>
                         </div>
                     {:else if stage.view.type === "ELEMINATION"}