diff --git a/Source/Atmosphere/stratosphere/loader/source/oc/mariko/calculate_timings.cpp b/Source/Atmosphere/stratosphere/loader/source/oc/mariko/calculate_timings.cpp
index fbe62621..6d0af09f 100644
--- a/Source/Atmosphere/stratosphere/loader/source/oc/mariko/calculate_timings.cpp
+++ b/Source/Atmosphere/stratosphere/loader/source/oc/mariko/calculate_timings.cpp
@@ -38,7 +38,6 @@ namespace ams::ldr::oc::pcv::mariko {
     void CalculateMiscTimings() {
         tW2P            = 0x2d;
         rdv             = 0x39       + C.mem_burst_read_latency;
-        obdly           = 0x10000002 + C.mem_burst_write_latency;
         einput_duration = 0x1C;
         quse_width      = 0x8;
 
@@ -48,7 +47,6 @@ namespace ams::ldr::oc::pcv::mariko {
                 rdv += e.rdv_inc;
                 if (e.einput) einput_duration = e.einput;
                 if (e.quse_width) quse_width = e.quse_width;
-                obdly += e.obdly_delta;
             }
         }
 
@@ -69,6 +67,14 @@ namespace ams::ldr::oc::pcv::mariko {
         }
     }
 
+    void CalculateObdly() {
+        obdly = 0x10000002 + C.mem_burst_write_latency;
+
+        if (auto patch = FindObdlyPatch()) {
+            obdly += patch->adjust;
+        }
+    }
+
     void CalculateTWTPDEN() {
         tWTPDEN = tW2P + 1 + CEIL(tDQSS_max / tCK_avg) + CEIL(tDQS2DQ_max / tCK_avg) + 6;
         if (C.marikoEmcMaxClock >= 2'233'000 && C.marikoEmcMaxClock < 2'533'000) tWTPDEN++;
@@ -165,6 +171,7 @@ namespace ams::ldr::oc::pcv::mariko {
     void CalculateTimings() {
         CalculateMiscTimings();
         CalculateIbdly();
+        CalculateObdly();
         CalculateTWTPDEN();
         CalculateTR2W();
         CalculateTW2R();
diff --git a/Source/Atmosphere/stratosphere/loader/source/oc/mariko/timing_tables.cpp b/Source/Atmosphere/stratosphere/loader/source/oc/mariko/timing_tables.cpp
index 4fc9c3e2..1fba3679 100644
--- a/Source/Atmosphere/stratosphere/loader/source/oc/mariko/timing_tables.cpp
+++ b/Source/Atmosphere/stratosphere/loader/source/oc/mariko/timing_tables.cpp
@@ -146,6 +146,37 @@ namespace ams::ldr::oc::pcv::mariko {
         return nullptr;
     }
 
+    const AdjustPatch g_obdly_patches[] = {
+        {2'533'000, -2},
+        {2'566'000, -2},
+        {2'600'000, -2},
+        {2'633'000, -2},
+        {2'666'000, -2},
+        {2'700'000, -2},
+        {2'733'000, -2},
+        {2'766'000, -2},
+        {2'800'000, -2},
+        {2'833'000, -4},
+        {2'866'000, -2},
+        {2'900'000, -4},
+        {2'933'000, -2},
+        {2'966'000, -2},
+        {3'000'000, -2},
+        {3'033'000, -2},
+        {3'066'000, -2},
+        {3'100'000, -4},
+        {3'133'000, -4},
+    };
+
+    const u32 g_obdly_table_size = sizeof(g_obdly_patches) / sizeof(g_obdly_patches[0]);
+
+    const AdjustPatch *FindObdlyPatch() {
+        for (u32 i = 0; i < g_obdly_table_size; i++)
+            if (g_obdly_patches[i].freq == C.marikoEmcMaxClock)
+                return &g_obdly_patches[i];
+        return nullptr;
+    }
+
     const AdjustPatch g_tr2w_patches[] = {
         {2'500'000,  1},
         {2'533'000,  1},
diff --git a/Source/Atmosphere/stratosphere/loader/source/oc/mariko/timing_tables.hpp b/Source/Atmosphere/stratosphere/loader/source/oc/mariko/timing_tables.hpp
index 11a49b3a..ad5a9fa2 100644
--- a/Source/Atmosphere/stratosphere/loader/source/oc/mariko/timing_tables.hpp
+++ b/Source/Atmosphere/stratosphere/loader/source/oc/mariko/timing_tables.hpp
@@ -41,6 +41,10 @@ namespace ams::ldr::oc::pcv::mariko {
     extern const u32         g_ibdly_table_size;
     const AdjustPatch       *FindIbdlyPatch();
 
+    extern const AdjustPatch g_obdly_patches[];
+    extern const u32         g_obdly_table_size;
+    const AdjustPatch       *FindObdlyPatch();
+
     extern const AdjustPatch g_tr2w_patches[];
     extern const u32         g_tr2w_table_size;
     const AdjustPatch       *FindTR2WPatch();