diff --git a/server/const.py b/server/const.py
index e8e0c57e9..5fdfa6c35 100644
--- a/server/const.py
+++ b/server/const.py
@@ -1,5 +1,6 @@
 from __future__ import annotations
 from datetime import timedelta
+from enum import global_enum, IntEnum, StrEnum
 import re
 
 from settings import static_url, PROD
@@ -39,14 +40,36 @@
 # Show the number of spectators only after this limit
 MAX_NAMED_SPECTATORS = 20
 
+
 # tournament status
-T_CREATED, T_STARTED, T_ABORTED, T_FINISHED, T_ARCHIVED = range(5)
+@global_enum
+class TStatus(IntEnum):
+    T_CREATED = 0
+    T_STARTED = 1
+    T_ABORTED = 2
+    T_FINISHED = 3
+    T_ARCHIVED = 4
+
 
 # tournament frequency
-HOURLY, DAILY, WEEKLY, MONTHLY, YEARLY, MARATHON, SHIELD = "h", "d", "w", "m", "y", "a", "s"
+@global_enum
+class TFreq(StrEnum):
+    HOURLY = "h"
+    DAILY = "d"
+    WEEKLY = "w"
+    MONTHLY = "m"
+    YEARLY = "y"
+    MARATHON = "a"
+    SHIELD = "s"
+
 
 # tournament pairing
-ARENA, RR, SWISS = range(3)
+@global_enum
+class TPairing(IntEnum):
+    ARENA = 0
+    RR = 1
+    SWISS = 2
+
 
 # translations
 LANGUAGES = [
@@ -70,37 +93,48 @@
     "zh_TW",
 ]
 
+
 # fishnet work types
-MOVE, ANALYSIS = 0, 1
+@global_enum
+class WorkType(IntEnum):
+    MOVE = 0
+    ANALYSIS = 1
+
 
 # game types
-CASUAL, RATED, IMPORTED = 0, 1, 2
+@global_enum
+class GameType(IntEnum):
+    CASUAL = 0
+    RATED = 1
+    IMPORTED = 2
+
 
 # game status
-(
-    CREATED,
-    STARTED,
-    ABORTED,
-    MATE,
-    RESIGN,
-    STALEMATE,
-    TIMEOUT,
-    DRAW,
-    FLAG,
-    ABANDON,
-    CHEAT,
-    BYEGAME,
-    INVALIDMOVE,
-    UNKNOWNFINISH,
-    VARIANTEND,
-    CLAIM,
-) = range(-2, 14)
+@global_enum
+class GameStatus(IntEnum):
+    CREATED = -2
+    STARTED = -1
+    ABORTED = 0
+    MATE = 1
+    RESIGN = 2
+    STALEMATE = 3
+    TIMEOUT = 4
+    DRAW = 5
+    FLAG = 6
+    ABANDON = 7
+    CHEAT = 8
+    BYEGAME = 9
+    INVALIDMOVE = 10
+    UNKNOWNFINISH = 11
+    VARIANTEND = 12
+    CLAIM = 13
+
 
 LOSERS = {
-    "abandon": ABANDON,
-    "abort": ABORTED,
-    "resign": RESIGN,
-    "flag": FLAG,
+    "abandon": GameStatus.ABANDON,
+    "abort": GameStatus.ABORTED,
+    "resign": GameStatus.RESIGN,
+    "flag": GameStatus.FLAG,
 }
 
 GRANDS = ("xiangqi", "manchu", "grand", "grandhouse", "shako", "janggi")
diff --git a/server/scheduler.py b/server/scheduler.py
index be703508b..6c9e7e1b2 100644
--- a/server/scheduler.py
+++ b/server/scheduler.py
@@ -8,13 +8,14 @@
     ARENA,
     CATEGORIES,
     GRANDS,
+    variant_display_name,
+    SCHEDULE_MAX_DAYS,
+    TYPE_CHECKING,
     DAILY,
     WEEKLY,
     MONTHLY,
+    YEARLY,
     SHIELD,
-    variant_display_name,
-    SCHEDULE_MAX_DAYS,
-    TYPE_CHECKING,
 )
 
 if TYPE_CHECKING:
@@ -23,8 +24,8 @@
 from tournaments import new_tournament
 from logger import log
 
+from calendar import MONDAY, WEDNESDAY, THURSDAY, FRIDAY, SATURDAY, SUNDAY
 
-MONDAY, TUESDAY, WEDNESDAY, THURSDAY, FRIDAY, SATURDAY, SUNDAY = range(7)
 Plan = namedtuple("Plan", "freq, date, hour, variant, is960, base, inc, byo, duration")
 
 SHIELDS = ["crazyhouse960", "atomic960", "kingofthehill960", "3check960", "makruk"]
@@ -269,6 +270,8 @@ def new_scheduled_tournaments(already_scheduled, now=None):
 
             if plan.freq == SHIELD:
                 name = "%s Shield Arena" % variant_name
+            elif plan.freq == YEARLY:
+                name = "Yearly %s Arena" % variant_name
             elif plan.freq == MONTHLY:
                 if plan.variant in CATEGORIES["makruk"]:
                     name = "SEAturday %s Arena" % variant_name
diff --git a/tests/test_scheduler.py b/tests/test_scheduler.py
index 12bbcb2c2..2bd2fc7d9 100644
--- a/tests/test_scheduler.py
+++ b/tests/test_scheduler.py
@@ -6,8 +6,6 @@
 from const import SHIELD, SCHEDULE_MAX_DAYS
 from scheduler import new_scheduled_tournaments, MONTHLY_VARIANTS, SHIELDS, Scheduler
 
-MONDAY, TUESDAY, WEDNESDAY, THURSDAY, FRIDAY, SATURDAY, SUNDAY = range(7)
-
 # Crazhouse960 Shield scheduled at second MONDAY of month
 SHIELD_ZH_2021_09 = (
     SHIELD,