diff --git a/client/src/components/Tours/TourScopeSummary.tsx b/client/src/components/Tours/TourScopeSummary.tsx
index 227e04af2..3911ac05e 100644
--- a/client/src/components/Tours/TourScopeSummary.tsx
+++ b/client/src/components/Tours/TourScopeSummary.tsx
@@ -3,6 +3,7 @@ import { ChartColumnBig, ChevronDown, Mountain, Route, Waves } from 'lucide-reac
 import { useMemo, useState, type ComponentType } from 'react';
 import { useTranslation } from '../../i18n';
 import { useSettingsStore } from '../../store/settingsStore';
+import { useTripStore } from '../../store/tripStore';
 import { formatDistance, formatElevation } from '../../utils/units';
 import { fs } from '../shared/DialogShell';
 import { InfoDot, RailCard, RailFacts, type TourMetricField } from './tourParts';
@@ -129,7 +130,12 @@ function TypeScope({ scope }: { scope: TourTypeScope }) {
 export function TourScopeSummary({ tours }: { tours: readonly TourListItem[] }) {
   const { t } = useTranslation();
   const [folded, setFolded] = useState(readFolded);
-  const scope = useMemo(() => tourScopeSummary(tours), [tours]);
+  // On a day as the day lists say, not the list's flag, so a tour put on a day counts at once (as its row's badge does).
+  const assignments = useTripStore((state) => state.assignments);
+  const scope = useMemo(() => {
+    const onDays = new Set(Object.values(assignments ?? {}).flatMap((list) => list.map((item) => item.place_id)));
+    return tourScopeSummary(tours, (tour) => onDays.has(tour.place_id));
+  }, [assignments, tours]);
   if (scope.count === 0) return null;
   const toggle = () => {
     setFolded((value) => {
diff --git a/client/src/components/Tours/tourScope.test.tsx b/client/src/components/Tours/tourScope.test.tsx
index 737129975..c8486e4d8 100644
--- a/client/src/components/Tours/tourScope.test.tsx
+++ b/client/src/components/Tours/tourScope.test.tsx
@@ -1,6 +1,7 @@
 import type { TourListItem } from '@trek/shared';
 import { beforeEach, describe, expect, it } from 'vitest';
 import { fireEvent, render, screen, within } from '../../../tests/helpers/render';
+import { useTripStore } from '../../store/tripStore';
 import { TourScopeSummary } from './TourScopeSummary';
 import { tourScopeSummary } from './tourScope';
 
@@ -60,6 +61,12 @@ const PADDLE = tour({
 });
 
 describe('tourScopeSummary (STA-01)', () => {
+  it('counts a tour on a day by the caller, once however many days it is on', () => {
+    const scope = tourScopeSummary([HIKE_A, HIKE_B], (tour) => tour.place_id === 2);
+    expect(scope.onDays).toBe(1);
+    expect(scope.types[0].onDays).toBe(1);
+  });
+
   it('counts each tour once, by type, the most tours first, with how many are on a day', () => {
     const scope = tourScopeSummary([HIKE_A, PADDLE, HIKE_B, GPX_HIKE, HIKE_A]);
     expect(scope.count).toBe(4);
@@ -95,7 +102,13 @@ describe('tourScopeSummary (STA-01)', () => {
 });
 
 describe('TourScopeSummary', () => {
-  beforeEach(() => localStorage.clear());
+  beforeEach(() => {
+    localStorage.clear();
+    // The day lists say which tours are on a day: HIKE_B on two days, PADDLE on one; the flags say otherwise.
+    useTripStore.setState({
+      assignments: { 1: [{ place_id: 2 }], 2: [{ place_id: 2 }, { place_id: 4 }] },
+    } as unknown as Parameters<typeof useTripStore.setState>[0]);
+  });
 
   it('shows the counts and each type with its sums, an incomplete one marked as at least', () => {
     render(<TourScopeSummary tours={[HIKE_A, HIKE_B, PADDLE]} />);
diff --git a/client/src/components/Tours/tourScope.ts b/client/src/components/Tours/tourScope.ts
index 5756ba372..143beea15 100644
--- a/client/src/components/Tours/tourScope.ts
+++ b/client/src/components/Tours/tourScope.ts
@@ -48,7 +48,7 @@ function sumOf(values: Array<number | null | undefined>): ScopeSum {
   };
 }
 
-function scopeOfType(type: TourTypeKey, tours: readonly TourListItem[]): TourTypeScope {
+function scopeOfType(type: TourTypeKey, tours: readonly TourListItem[], onDay: OnDay): TourTypeScope {
   const planned = tours.filter((tour) => tourSource(tour) === 'trek');
   const imported = tours.filter((tour) => tourSource(tour) !== 'trek');
   // A paddle tour drawn in TREK has no true heights (they would be the banks'), so it does not count as having them.
@@ -58,7 +58,7 @@ function scopeOfType(type: TourTypeKey, tours: readonly TourListItem[]): TourTyp
   return {
     type,
     count: tours.length,
-    onDays: tours.filter((tour) => tour.planned).length,
+    onDays: tours.filter(onDay).length,
     distanceKm: sumOf(tours.map((tour) => tour.distance)),
     ascentM: heights ? sumOf(withHeights.map((tour) => tour?.elevation_gain)) : NO_SUM,
     descentM: heights ? sumOf(withHeights.map((tour) => tour?.elevation_loss)) : NO_SUM,
@@ -68,18 +68,22 @@ function scopeOfType(type: TourTypeKey, tours: readonly TourListItem[]): TourTyp
   };
 }
 
+/** Whether a tour is on a day of the trip. */
+type OnDay = (tour: TourListItem) => boolean;
+
 /**
  * STA-01: what the tours of a trip add up to, by type. Each tour counts once,
  * however many days it is on; the list is the trip's tours, one row each, so
- * a tour on three days is still one tour and one distance.
+ * a tour on three days is still one tour and one distance. `onDay` reads the
+ * day lists where the caller has them; the list's own flag is the fallback.
  */
-export function tourScopeSummary(tours: readonly TourListItem[]): TourScope {
+export function tourScopeSummary(tours: readonly TourListItem[], onDay: OnDay = (tour) => tour.planned): TourScope {
   const byType = new Map<TourTypeKey, TourListItem[]>();
   for (const tour of new Map(tours.map((tour) => [tour.place_id, tour])).values()) {
     byType.set(tour.tour_type, [...(byType.get(tour.tour_type) ?? []), tour]);
   }
   const types = [...byType.entries()]
-    .map(([type, ofType]) => scopeOfType(type, ofType))
+    .map(([type, ofType]) => scopeOfType(type, ofType, onDay))
     .sort((a, b) => b.count - a.count || a.type.localeCompare(b.type));
   return {
     count: types.reduce((total, scope) => total + scope.count, 0),