diff --git a/platform/backend/app/analytics/localization.py b/platform/backend/app/analytics/localization.py
index df00bff..9342112 100644
--- a/platform/backend/app/analytics/localization.py
+++ b/platform/backend/app/analytics/localization.py
@@ -209,6 +209,9 @@ TEAM_NAMES.update(
     "Mali": "馬利",
     "DR Congo": "剛果民主共和國",
     "Congo DR": "剛果民主共和國",
+    "Cabo Verde": "維德角",
+    "IR Iran": "伊朗",
+    "Islamic Republic of Iran": "伊朗",
     "South Africa": "南非",
   }
 )
@@ -232,6 +235,42 @@ TEAM_NAME_ALIASES = {
 }
 
 
+_GROUP_LABELS = {letter: letter for letter in "ABCDEFGHIJKL"}
+
+
+def _format_group_codes(raw_codes: str) -> str:
+  codes = [code.strip().upper() for code in raw_codes.split('/') if code.strip()]
+  return '、'.join(f'{_GROUP_LABELS.get(code, code)}組' for code in codes)
+
+
+def _localize_competition_placeholder(value: Any) -> str | None:
+  text = _clean(value)
+  if not text:
+    return None
+
+  match = re.fullmatch(r'Group\s+([A-L])\s+winners', text, flags=re.IGNORECASE)
+  if match:
+    return f'{match.group(1).upper()}組第1名'
+
+  match = re.fullmatch(r'Group\s+([A-L])\s+runners-up', text, flags=re.IGNORECASE)
+  if match:
+    return f'{match.group(1).upper()}組第2名'
+
+  match = re.fullmatch(r'Group\s+([A-L](?:/[A-L])+)\s+third\s+place', text, flags=re.IGNORECASE)
+  if match:
+    return f'{_format_group_codes(match.group(1))}第3名候選'
+
+  match = re.fullmatch(r'Winner\s+Match\s+(\d+)', text, flags=re.IGNORECASE)
+  if match:
+    return f'第 {match.group(1)} 場勝方'
+
+  match = re.fullmatch(r'Loser\s+Match\s+(\d+)', text, flags=re.IGNORECASE)
+  if match:
+    return f'第 {match.group(1)} 場敗方'
+
+  return None
+
+
 def _normalize_lookup_key(value: Any) -> str:
   text = unicodedata.normalize("NFKD", _clean(value))
   text = "".join(ch for ch in text if not unicodedata.combining(ch))
@@ -265,7 +304,10 @@ def _lookup(value: Any, mapping: dict[str, str]) -> str:
 
 
 def localize_team_name(value: Any) -> str:
-    return _lookup(value, TEAM_NAMES)
+  placeholder = _localize_competition_placeholder(value)
+  if placeholder:
+    return placeholder
+  return _lookup(value, TEAM_NAMES)
 
 
 def localize_country(value: Any) -> str: