diff --git a/src/services/gradeSlateService.js b/src/services/gradeSlateService.js
index 042a48f..3fff476 100644
--- a/src/services/gradeSlateService.js
+++ b/src/services/gradeSlateService.js
@@ -59,6 +59,15 @@ async function gradeBestSide(grade, prop, sport, opts = {}) {
     // quarter-Kelly sizing can compute from actual prices (or not at all).
     over_odds: prop.over_odds ?? null,
     under_odds: prop.under_odds ?? null,
+    // Session 64 (Order 1.6) — carry the BOUND game through to grading so
+    // opponent/home-away features resolve against the RIGHT game. Without this
+    // the grader fell back to ESPN's dateless "today", which at the late slots
+    // is the previous day's card — binding yesterday's opponent into
+    // opp_rank_stat and the home/away factor.
+    game_date: prop.game_date ?? null,
+    game_time: prop.game_time ?? null,
+    home_team: prop.home_team ?? null,
+    away_team: prop.away_team ?? null,
   };
   const sides = await Promise.all([
     Promise.resolve()
diff --git a/src/services/intelligence/computeFeatures.js b/src/services/intelligence/computeFeatures.js
index 83bde71..2a303ef 100644
--- a/src/services/intelligence/computeFeatures.js
+++ b/src/services/intelligence/computeFeatures.js
@@ -126,12 +126,39 @@ async function lookupPlayer({ player, sport }) {
 
 // Pull today's scoreboard for the sport and find the game the player's
 // team plays in. Returns { gameId, opponentAbbr, isHome } or null.
-async function lookupTodayGame({ sport, teamAbbr }) {
+/**
+ * Session 64 (Order 1.6) — resolve the player's game for a SPECIFIC DATE.
+ *
+ * This used to be `lookupTodayGame`, calling the ESPN scoreboard with NO date
+ * param — it took whatever ESPN calls "today". At the late slots (01:00/03:00
+ * UTC = 21:00/23:00 ET) that is the PREVIOUS day's card, so a prop for
+ * tonight bound `opponentAbbr` and `home_away` to YESTERDAY'S opponent. Those
+ * feed the ±1.0 opponent-defense factor and the home/away factor, so it is a
+ * MODEL-OUTPUT bug, not bookkeeping.
+ *
+ * `gameDate` (YYYY-MM-DD, ET) comes from the prop's BOUND game — the same game
+ * the ledger, retention and settlement now use, so all four agree.
+ * Absent gameDate → we do NOT guess a day; the caller degrades honestly.
+ */
+/** ET calendar date of an ISO timestamp. */
+function dateETOf(iso) {
+  if (!iso) return null;
+  const t = new Date(iso);
+  if (Number.isNaN(t.getTime())) return null;
+  return new Intl.DateTimeFormat('en-CA', {
+    timeZone: 'America/New_York', year: 'numeric', month: '2-digit', day: '2-digit',
+  }).format(t);
+}
+
+async function lookupGameOnDate({ sport, teamAbbr, gameDate }) {
   if (!sport || !teamAbbr) return null;
   let sportCfg;
   try { sportCfg = getSportConfig(sport); } catch { return null; }
   try {
-    const res = await axios.get(sportCfg.espnScoreboard, { timeout: HTTP_TIMEOUT_MS });
+    const url = gameDate
+      ? `${sportCfg.espnScoreboard}${sportCfg.espnScoreboard.includes('?') ? '&' : '?'}dates=${String(gameDate).replace(/-/g, '')}`
+      : sportCfg.espnScoreboard;
+    const res = await axios.get(url, { timeout: HTTP_TIMEOUT_MS });
     const events = res.data?.events || [];
     for (const ev of events) {
       const comp = ev?.competitions?.[0];
@@ -241,7 +268,18 @@ async function computeFeaturesForProp(rawProp = {}) {
   const teamAbbr = roster?.team_abbr ?? null;
   const playerId = roster?.espn_id ?? null;
 
-  const game = teamAbbr ? await lookupTodayGame({ sport, teamAbbr }) : null;
+  // Session 64 (Order 1.6) — bind opponent/home-away features to the prop's
+  // REAL game. `gameBinder` attaches game_date in snapshotService before
+  // grading, so grading references the same game as the ledger/retention.
+  // With no bound date we do NOT fall back to a dateless "today" lookup —
+  // that is exactly what bound the wrong opponent. The features simply stay
+  // absent, and engine1 omits the factors rather than scoring a wrong matchup.
+  const boundGameDate = rawProp.game_date
+    || (rawProp.game_time ? dateETOf(rawProp.game_time) : null);
+  const game = (teamAbbr && boundGameDate)
+    ? await lookupGameOnDate({ sport, teamAbbr, gameDate: boundGameDate })
+    : null;
+  if (teamAbbr && !boundGameDate) errors.push('no_bound_game_date');
   if (!game) errors.push('no_game_scheduled_today');
 
   // Session 63 — fetch the normalized per-game rows ONCE. They feed three
@@ -296,7 +334,11 @@ async function computeFeaturesForProp(rawProp = {}) {
   // The `t01_*` fields land alongside the ESPN-derived features;
   // grading + reasoning + trap detection read them when present and
   // ignore them when absent.
-  const ymd = new Date().toISOString().slice(0, 10).replace(/-/g, '');
+  // Session 64 (Order 1.6) — same class of bug as the scoreboard lookup: this
+  // was TODAY's UTC date, so a late-slot grade read the wrong day's Tank01
+  // cache. Use the prop's BOUND game date; fall back to today only when there
+  // is no bound game (the t01_* fields are additive and simply stay absent).
+  const ymd = (boundGameDate || new Date().toISOString().slice(0, 10)).replace(/-/g, '');
   try {
     if (sport === 'nba') {
       const aug = await tank01Augment.augmentNbaFeatures({
@@ -417,7 +459,7 @@ module.exports = {
   computeFeaturesForProp,
   __internals: {
     lookupPlayer,
-    lookupTodayGame,
+    lookupGameOnDate,
     safeGetFeatures,
     safeGetTrap,
     safeGetConsistency,
diff --git a/tests/unit/computeFeatures.test.js b/tests/unit/computeFeatures.test.js
index dd04498..e29a89f 100644
--- a/tests/unit/computeFeatures.test.js
+++ b/tests/unit/computeFeatures.test.js
@@ -99,6 +99,9 @@ describe('computeFeaturesForProp — happy path', () => {
 
     const out = await computeFeaturesForProp({
       player: 'Jalen Brunson', stat_type: 'points', line: 25.5, direction: 'over', sport: 'nba',
+      // Session 64 — grading binds opponent features to the prop's REAL game.
+      // Without a bound date it no longer guesses ESPN's "today".
+      game_date: '2026-07-20',
     });
 
     expect(out.features.l5_avg).toBe(28.4);
@@ -132,7 +135,7 @@ describe('computeFeaturesForProp — graceful degradation', () => {
     mockSupabaseState.rosterRow = { team_abbr: 'NYK', espn_id: '1', sport: 'nba' };
     mockAxiosGet.mockResolvedValue(nbaScoreboard([])); // empty slate
     const out = await computeFeaturesForProp({
-      player: 'Some Player', stat_type: 'points', line: 22, direction: 'over', sport: 'nba',
+      player: 'Some Player', stat_type: 'points', line: 22, direction: 'over', sport: 'nba', game_date: '2026-07-20',
     });
     expect(out.meta.errors).toContain('no_game_scheduled_today');
     expect(out.meta.teamAbbr).toBe('NYK');
@@ -144,7 +147,7 @@ describe('computeFeaturesForProp — graceful degradation', () => {
     mockAxiosGet.mockResolvedValue(nbaScoreboard([game('e2', 'NYK', 'BOS')]));
     mockFeatures.throws = true;
     const out = await computeFeaturesForProp({
-      player: 'Brunson', stat_type: 'points', line: 25, direction: 'over', sport: 'nba',
+      player: 'Brunson', stat_type: 'points', line: 25, direction: 'over', sport: 'nba', game_date: '2026-07-20',
     });
     expect(out.meta.errors).toContain('no_features_computed');
     // Session 15 — static lookups (pace factor, park factor) populate
@@ -166,7 +169,7 @@ describe('computeFeaturesForProp — graceful degradation', () => {
     mockFeatures.current = { l5_avg: 25 };
     mockTrap.throws = true;
     const out = await computeFeaturesForProp({
-      player: 'Brunson', stat_type: 'points', line: 25, direction: 'over', sport: 'nba',
+      player: 'Brunson', stat_type: 'points', line: 25, direction: 'over', sport: 'nba', game_date: '2026-07-20',
     });
     expect(out.trap).toMatchObject({ composite: 0, recommendation: 'proceed' });
   });
@@ -198,3 +201,31 @@ describe('computeFeaturesForProp — graceful degradation', () => {
     expect(src).not.toMatch(/UnifiedOddsProvider/);
   });
 });
+
+describe('Session 64 — grading binds to the BOUND game, never "today"', () => {
+  test('no bound game date → opponent features are NOT bound to a guessed game', async () => {
+    mockSupabaseState.rosterRow = { team_abbr: 'NYK', espn_id: '1', sport: 'nba' };
+    // A full scoreboard is available — the old code would have happily bound
+    // this (possibly yesterday's) game. Without a bound date we must not.
+    mockAxiosGet.mockResolvedValue(nbaScoreboard([game('ev-9', 'NYK', 'BOS')]));
+    const out = await computeFeaturesForProp({
+      player: 'Brunson', stat_type: 'points', line: 25, direction: 'over', sport: 'nba',
+      // no game_date / game_time
+    });
+    expect(out.meta.errors).toContain('no_bound_game_date');
+    expect(out.meta.gameId).toBeNull();
+    expect(out.meta.opponentAbbr).toBeNull();
+    expect(out.meta.isHome).toBeNull();
+  });
+
+  test('a bound date resolves the opponent for THAT date', async () => {
+    mockSupabaseState.rosterRow = { team_abbr: 'NYK', espn_id: '1', sport: 'nba' };
+    mockAxiosGet.mockResolvedValue(nbaScoreboard([game('ev-10', 'NYK', 'MIA')]));
+    const out = await computeFeaturesForProp({
+      player: 'Brunson', stat_type: 'points', line: 25, direction: 'over', sport: 'nba',
+      game_date: '2026-07-20',
+    });
+    expect(out.meta.opponentAbbr).toBe('MIA');
+    expect(out.meta.errors).not.toContain('no_bound_game_date');
+  });
+});