diff --git a/data/event_scripts.s b/data/event_scripts.s
index 8cbb3fd2e..2744824ec 100644
--- a/data/event_scripts.s
+++ b/data/event_scripts.s
@@ -16,6 +16,7 @@
 #include "constants/trainers.h"
 #include "constants/vars.h"
 #include "constants/weather.h"
+#include "constants/trainer_hill.h"
 	.include "asm/macros.inc"
 	.include "asm/macros/event.inc"
 	.include "constants/constants.inc"
@@ -2758,7 +2759,7 @@ EventScript_2736F8:: @ 82736F8
 	goto_if_eq BattleFrontier_BattlePyramidTop_EventScript_252B42
 	compare VAR_RESULT, 2
 	goto_if_eq BattleFrontier_BattlePyramidTop_EventScript_252B42
-	setvar VAR_0x8004, 10
+	setvar VAR_0x8004, TRAINER_HILL_FUNC_10
 	special CallTrainerHillFunction
 	compare VAR_RESULT, 1
 	goto_if_eq TrainerHill_1F_EventScript_2C83C9
@@ -6925,7 +6926,7 @@ TrainerHill_3F_MapScript1_2C8336: @ 82C8336
 TrainerHill_4F_MapScript1_2C8336: @ 82C8336
 TrainerHill_Roof_MapScript1_2C8336: @ 82C8336
 	setvar VAR_TEMP_2, 0
-	setvar VAR_0x8004, 4
+	setvar VAR_0x8004, TRAINER_HILL_FUNC_4
 	special CallTrainerHillFunction
 	setvar VAR_0x8004, 1
 	setvar VAR_0x8005, 5
@@ -6958,7 +6959,7 @@ TrainerHill_Roof_MapScript2_2C8381: @ 82C8381
 
 EventScript_TrainerHillTimer:: @ 82C8393
 	lockall
-	setvar VAR_0x8004, 7
+	setvar VAR_0x8004, TRAINER_HILL_FUNC_7
 	special CallTrainerHillFunction
 	msgbox TrainerHill_Entrance_Text_268D47, MSGBOX_DEFAULT
 	releaseall
@@ -6966,7 +6967,7 @@ EventScript_TrainerHillTimer:: @ 82C8393
 
 TrainerHill_1F_EventScript_2C83A6:: @ 82C83A6
 	setvar VAR_TEMP_2, 1
-	setvar VAR_0x8004, 9
+	setvar VAR_0x8004, TRAINER_HILL_FUNC_9
 	special CallTrainerHillFunction
 	compare VAR_RESULT, 1
 	goto_if_eq TrainerHill_1F_EventScript_2C83BF
@@ -6978,9 +6979,9 @@ TrainerHill_1F_EventScript_2C83BF:: @ 82C83BF
 	end
 
 TrainerHill_1F_EventScript_2C83C9:: @ 82C83C9
-	setvar VAR_0x8004, 12
+	setvar VAR_0x8004, TRAINER_HILL_FUNC_12
 	special CallTrainerHillFunction
-	setvar VAR_0x8004, 5
+	setvar VAR_0x8004, TRAINER_HILL_FUNC_5
 	special CallTrainerHillFunction
 	setvar VAR_TEMP_1, 1
 	end
@@ -6998,7 +6999,7 @@ TrainerHill_1F_Movement_2C83EE:: @ 82C83EE
 
 EventScript_2C83F0:: @ 82C83F0
 	trainerbattle TRAINER_BATTLE_12, TRAINER_PHILLIP, 0, BattleFacility_TrainerBattle_PlaceholderText, BattleFacility_TrainerBattle_PlaceholderText
-	setvar VAR_0x8004, 11
+	setvar VAR_0x8004, TRAINER_HILL_FUNC_11
 	special CallTrainerHillFunction
 	waitmessage
 	waitbuttonpress
diff --git a/data/map_events.s b/data/map_events.s
index cd42bfe75..ceaa72837 100644
--- a/data/map_events.s
+++ b/data/map_events.s
@@ -8,6 +8,7 @@
 #include "constants/secret_bases.h"
 #include "constants/vars.h"
 #include "constants/weather.h"
+#include "constants/trainer_hill.h"
 	.include "asm/macros.inc"
 	.include "constants/constants.inc"
 
diff --git a/data/maps.s b/data/maps.s
index 3334fd103..beb28ddec 100644
--- a/data/maps.s
+++ b/data/maps.s
@@ -4,7 +4,7 @@
 #include "constants/weather.h"
 #include "constants/region_map_sections.h"
 #include "constants/songs.h"
-#include "constants/weather.h"
+#include "constants/trainer_hill.h"
 	.include "asm/macros.inc"
 	.include "constants/constants.inc"
 
diff --git a/data/maps/TrainerHill_Entrance/scripts.inc b/data/maps/TrainerHill_Entrance/scripts.inc
index a37a23395..a07c4069a 100644
--- a/data/maps/TrainerHill_Entrance/scripts.inc
+++ b/data/maps/TrainerHill_Entrance/scripts.inc
@@ -15,10 +15,10 @@ TrainerHill_Entrance_MapScript1_2680CF: @ 82680CF
 	end
 
 TrainerHill_Entrance_MapScript1_2680D0: @ 82680D0
-	setvar VAR_0x8004, 4
+	setvar VAR_0x8004, TRAINER_HILL_FUNC_4
 	special CallTrainerHillFunction
 	setvar VAR_TEMP_0, 0
-	setvar VAR_0x8004, 9
+	setvar VAR_0x8004, TRAINER_HILL_FUNC_9
 	special CallTrainerHillFunction
 	compare VAR_RESULT, 0
 	goto_if_eq TrainerHill_Entrance_EventScript_2680FF
@@ -27,7 +27,7 @@ TrainerHill_Entrance_MapScript1_2680D0: @ 82680D0
 	end
 
 TrainerHill_Entrance_EventScript_2680FF:: @ 82680FF
-	setvar VAR_0x8004, 16
+	setvar VAR_0x8004, TRAINER_HILL_FUNC_16
 	special CallTrainerHillFunction
 	compare VAR_RESULT, 1
 	goto_if_eq TrainerHill_Entrance_EventScript_26811A
@@ -74,7 +74,7 @@ TrainerHill_Entrance_EventScript_268160:: @ 8268160
 
 TrainerHill_Entrance_EventScript_268182:: @ 8268182
 	setvar VAR_TEMP_0, 1
-	setvar VAR_0x8004, 6
+	setvar VAR_0x8004, TRAINER_HILL_FUNC_6
 	special CallTrainerHillFunction
 	switch VAR_RESULT
 	case 0, TrainerHill_Entrance_EventScript_2681B5
@@ -91,7 +91,6 @@ TrainerHill_Entrance_EventScript_2681CA:: @ 82681CA
 	lockall
 	applymovement EVENT_OBJ_ID_PLAYER, TrainerHill_Entrance_Movement_26837F
 	msgbox TrainerHill_Entrance_Text_268712, MSGBOX_DEFAULT
-    @ No "end" command; intentional fall-through to TrainerHill_Entrance_EventScript_2681DA.
 
 TrainerHill_Entrance_EventScript_2681DA:: @ 82681DA
 	closemessage
@@ -115,7 +114,7 @@ TrainerHill_Entrance_EventScript_2681EF:: @ 82681EF
 TrainerHill_Entrance_EventScript_2681FD:: @ 82681FD
 	lock
 	faceplayer
-	setvar VAR_0x8004, 10
+	setvar VAR_0x8004, TRAINER_HILL_FUNC_10
 	special CallTrainerHillFunction
 	compare VAR_RESULT, 0
 	goto_if_eq TrainerHill_Entrance_EventScript_26821F
@@ -134,11 +133,11 @@ TrainerHill_Entrance_EventScript_268229:: @ 8268229
 	applymovement EVENT_OBJ_ID_PLAYER, TrainerHill_Entrance_Movement_26837F
 	goto_if_unset FLAG_SYS_GAME_CLEAR, TrainerHill_Entrance_EventScript_26836A
 	msgbox TrainerHill_Entrance_Text_2684C6, MSGBOX_DEFAULT
-	setvar VAR_0x8004, 13
+	setvar VAR_0x8004, TRAINER_HILL_FUNC_13
 	special CallTrainerHillFunction
 	compare VAR_RESULT, 0
 	call_if_eq TrainerHill_Entrance_EventScript_26832E
-	setvar VAR_0x8004, 8
+	setvar VAR_0x8004, TRAINER_HILL_FUNC_8
 	special CallTrainerHillFunction
 	compare VAR_RESULT, 1
 	goto_if_eq TrainerHill_Entrance_EventScript_268275
@@ -169,14 +168,14 @@ TrainerHill_Entrance_EventScript_2682C8:: @ 82682C8
 	switch VAR_RESULT
 	case 4, TrainerHill_Entrance_EventScript_268314
 	case 127, TrainerHill_Entrance_EventScript_268314
-	setvar VAR_0x8004, 17
+	setvar VAR_0x8004, TRAINER_HILL_FUNC_17
 	copyvar VAR_0x8005, VAR_RESULT
 	special CallTrainerHillFunction
 	setvar VAR_0x40D6, 1
 	setvar VAR_TEMP_5, 0
 	special HealPlayerParty
 	msgbox TrainerHill_Entrance_Text_26862A, MSGBOX_DEFAULT
-	setvar VAR_0x8004, 0
+	setvar VAR_0x8004, TRAINER_HILL_FUNC_0
 	special CallTrainerHillFunction
 	releaseall
 	end
@@ -192,18 +191,18 @@ TrainerHill_Entrance_EventScript_268314:: @ 8268314
 
 TrainerHill_Entrance_EventScript_26832E:: @ 826832E
 	msgbox TrainerHill_Entrance_Text_26851C, MSGBOX_DEFAULT
-	setvar VAR_0x8004, 14
+	setvar VAR_0x8004, TRAINER_HILL_FUNC_14
 	special CallTrainerHillFunction
 	setvar VAR_TEMP_5, 1
 	call Common_EventScript_SaveGame
 	compare VAR_RESULT, 0
 	goto_if_eq TrainerHill_Entrance_EventScript_26835C
-	setvar VAR_0x8004, 14
+	setvar VAR_0x8004, TRAINER_HILL_FUNC_14
 	special CallTrainerHillFunction
 	return
 
 TrainerHill_Entrance_EventScript_26835C:: @ 826835C
-	setvar VAR_0x8004, 15
+	setvar VAR_0x8004, TRAINER_HILL_FUNC_15
 	special CallTrainerHillFunction
 	goto TrainerHill_Entrance_EventScript_268314
 	end
diff --git a/data/maps/TrainerHill_Roof/scripts.inc b/data/maps/TrainerHill_Roof/scripts.inc
index fc1ca200f..bf467e100 100644
--- a/data/maps/TrainerHill_Roof/scripts.inc
+++ b/data/maps/TrainerHill_Roof/scripts.inc
@@ -4,11 +4,11 @@ TrainerHill_Roof_MapScripts:: @ 8268FA7
 	.byte 0
 
 TrainerHill_Roof_EventScript_268FB2:: @ 8268FB2
-	setvar VAR_0x8004, 12
+	setvar VAR_0x8004, TRAINER_HILL_FUNC_12
 	special CallTrainerHillFunction
 	lock
 	faceplayer
-	setvar VAR_0x8004, 1
+	setvar VAR_0x8004, TRAINER_HILL_FUNC_1
 	special CallTrainerHillFunction
 	switch VAR_RESULT
 	case 0, TrainerHill_Roof_EventScript_268FEA
@@ -19,7 +19,7 @@ TrainerHill_Roof_EventScript_268FEA:: @ 8268FEA
 	msgbox TrainerHill_Roof_Text_268986, MSGBOX_DEFAULT
 
 TrainerHill_Roof_EventScript_268FF2:: @ 8268FF2
-	setvar VAR_0x8004, 2
+	setvar VAR_0x8004, TRAINER_HILL_FUNC_2
 	special CallTrainerHillFunction
 	switch VAR_RESULT
 	case 0, TrainerHill_Roof_EventScript_269020
@@ -41,7 +41,7 @@ TrainerHill_Roof_EventScript_269037:: @ 8269037
 	goto TrainerHill_Roof_EventScript_269054
 
 TrainerHill_Roof_EventScript_269054:: @ 8269054
-	setvar VAR_0x8004, 3
+	setvar VAR_0x8004, TRAINER_HILL_FUNC_3
 	special CallTrainerHillFunction
 	switch VAR_RESULT
 	case 0, TrainerHill_Roof_EventScript_269082
diff --git a/include/constants/trainer_hill.h b/include/constants/trainer_hill.h
new file mode 100644
index 000000000..01bbd44a5
--- /dev/null
+++ b/include/constants/trainer_hill.h
@@ -0,0 +1,23 @@
+#ifndef GUARD_CONSTANTS_TRAINER_HILL_H
+#define GUARD_CONSTANTS_TRAINER_HILL_H
+
+#define TRAINER_HILL_FUNC_0 0
+#define TRAINER_HILL_FUNC_1 1
+#define TRAINER_HILL_FUNC_2 2
+#define TRAINER_HILL_FUNC_3 3
+#define TRAINER_HILL_FUNC_4 4
+#define TRAINER_HILL_FUNC_5 5
+#define TRAINER_HILL_FUNC_6 6
+#define TRAINER_HILL_FUNC_7 7
+#define TRAINER_HILL_FUNC_8 8
+#define TRAINER_HILL_FUNC_9 9
+#define TRAINER_HILL_FUNC_10 10
+#define TRAINER_HILL_FUNC_11 11
+#define TRAINER_HILL_FUNC_12 12
+#define TRAINER_HILL_FUNC_13 13
+#define TRAINER_HILL_FUNC_14 14
+#define TRAINER_HILL_FUNC_15 15
+#define TRAINER_HILL_FUNC_16 16
+#define TRAINER_HILL_FUNC_17 17
+
+#endif
\ No newline at end of file
diff --git a/include/global.h b/include/global.h
index ee0ba6893..16f67339b 100644
--- a/include/global.h
+++ b/include/global.h
@@ -795,14 +795,14 @@ struct TrainerNameRecord
 
 struct SaveTrainerHill
 {
-    /*0x3D64*/ u32 field_3D64;
+    /*0x3D64*/ u32 timer;
     /*0x3D68*/ u32 field_3D68;
     /*0x3D6C*/ u8 field_3D6C;
     /*0x3D6D*/ u8 unused;
     /*0x3D6E*/ u16 field_3D6E_0a:1; // 1
     /*0x3D6E*/ u16 field_3D6E_0b:1; // 2
     /*0x3D6E*/ u16 field_3D6E_0c:1; // 4
-    /*0x3D6E*/ u16 field_3D6E_0d:1; // 8
+    /*0x3D6E*/ u16 hasLost:1; // 8
     /*0x3D6E*/ u16 field_3D6E_0e:1; // x10
     /*0x3D6E*/ u16 field_3D6E_0f:1; // x20
     /*0x3D6E*/ u16 tag:2; // x40, x80 = xC0
diff --git a/include/main.h b/include/main.h
index 728064288..014b4942e 100644
--- a/include/main.h
+++ b/include/main.h
@@ -61,8 +61,8 @@ void SetHBlankCallback(IntrCallback callback);
 void SetVCountCallback(IntrCallback callback);
 void SetSerialCallback(IntrCallback callback);
 void InitFlashTimer(void);
-void sub_80008DC(u32 *var);
-void sub_80008E8(void);
+void SetVBlankCounterPointer(u32 *var);
+void ClearVBlankCounterPointer(void);
 void DoSoftReset(void);
 void ClearPokemonCrySongs(void);
 void RestoreSerialTimer3IntrHandlers(void);
diff --git a/include/trainer_hill.h b/include/trainer_hill.h
index bbc4f45c5..35b0c5d6d 100644
--- a/include/trainer_hill.h
+++ b/include/trainer_hill.h
@@ -1,7 +1,7 @@
 #ifndef GUARD_TRAINER_HILL_H
 #define GUARD_TRAINER_HILL_H
 
-extern u32 *gUnknown_0203CF5C;
+extern u32 *gVBlankCounterPointer;
 
 void CallTrainerHillFunction(void);
 void ResetTrainerHillResults(void);
diff --git a/src/load_save.c b/src/load_save.c
index 0d19c6dae..d71e72802 100644
--- a/src/load_save.c
+++ b/src/load_save.c
@@ -99,7 +99,7 @@ void MoveSaveBlocks_ResetHeap(void)
     hblankCB = gMain.hblankCallback;
     gMain.vblankCallback = NULL;
     gMain.hblankCallback = NULL;
-    gUnknown_0203CF5C = NULL;
+    gVBlankCounterPointer = NULL;
 
     saveBlock2Copy = (struct SaveBlock2 *)(gHeap);
     saveBlock1Copy = (struct SaveBlock1 *)(gHeap + sizeof(struct SaveBlock2));
diff --git a/src/main.c b/src/main.c
index 61c5e3386..3e282775d 100644
--- a/src/main.c
+++ b/src/main.c
@@ -163,7 +163,7 @@ static void UpdateLinkAndCallCallbacks(void)
 static void InitMainCallbacks(void)
 {
     gMain.vblankCounter1 = 0;
-    gUnknown_0203CF5C = NULL;
+    gVBlankCounterPointer = NULL;
     gMain.vblankCounter2 = 0;
     gMain.callback1 = NULL;
     SetMainCallback2(CB2_InitCopyrightScreenAfterBootup);
@@ -324,8 +324,8 @@ static void VBlankIntr(void)
 
     gMain.vblankCounter1++;
 
-    if (gUnknown_0203CF5C && *gUnknown_0203CF5C < 0xFFFFFFFF)
-        (*gUnknown_0203CF5C)++;
+    if (gVBlankCounterPointer && *gVBlankCounterPointer < 0xFFFFFFFF)
+        (*gVBlankCounterPointer)++;
 
     if (gMain.vblankCallback)
         gMain.vblankCallback();
@@ -393,14 +393,14 @@ static void WaitForVBlank(void)
         ;
 }
 
-void sub_80008DC(u32 *var)
+void SetVBlankCounterPointer(u32 *var)
 {
-    gUnknown_0203CF5C = var;
+    gVBlankCounterPointer = var;
 }
 
-void sub_80008E8(void)
+void ClearVBlankCounterPointer(void)
 {
-    gUnknown_0203CF5C = NULL;
+    gVBlankCounterPointer = NULL;
 }
 
 void DoSoftReset(void)
diff --git a/src/save.c b/src/save.c
index a22e20f0b..593ee8f2c 100644
--- a/src/save.c
+++ b/src/save.c
@@ -659,10 +659,10 @@ static void UpdateSaveAddresses(void)
 u8 HandleSavingData(u8 saveType)
 {
     u8 i;
-    u32 *backupVar = gUnknown_0203CF5C;
+    u32 *backupVar = gVBlankCounterPointer;
     u8 *tempAddr;
 
-    gUnknown_0203CF5C = NULL;
+    gVBlankCounterPointer = NULL;
     UpdateSaveAddresses();
     switch (saveType)
     {
@@ -705,7 +705,7 @@ u8 HandleSavingData(u8 saveType)
         save_write_to_flash(0xFFFF, gRamSaveSectionLocations);
         break;
     }
-    gUnknown_0203CF5C = backupVar;
+    gVBlankCounterPointer = backupVar;
     return 0;
 }
 
diff --git a/src/trainer_hill.c b/src/trainer_hill.c
index 42b196abd..60f67c91d 100644
--- a/src/trainer_hill.c
+++ b/src/trainer_hill.c
@@ -92,15 +92,15 @@ struct TrHillStruct2
 // EWRAM
 static EWRAM_DATA struct TrHillStruct2 *sHillData = NULL;
 static EWRAM_DATA struct TrHillRoomTrainers *sRoomTrainers = NULL;
-EWRAM_DATA u32 *gUnknown_0203CF5C = NULL;
+EWRAM_DATA u32 *gVBlankCounterPointer = NULL;
 
 // This file's functions.
-static void sub_81D581C(void);
+static void TrainerHillStartChallenge(void);
 static void sub_81D58D8(void);
 static void sub_81D5924(void);
 static void sub_81D59D0(void);
-static void sub_81D5A70(void);
-static void sub_81D5AB4(void);
+static void TrainerHillResumeTimer(void);
+static void TrainerHillSetPlayerLost(void);
 static void sub_81D5AD0(void);
 static void sub_81D5B2C(void);
 static void sub_81D5BBC(void);
@@ -263,12 +263,12 @@ static const u8 *const sFloorStrings[] =
 
 static void (* const sHillFunctions[])(void) =
 {
-    sub_81D581C,
+    TrainerHillStartChallenge,
     sub_81D58D8,
     sub_81D5924,
     sub_81D59D0,
-    sub_81D5A70,
-    sub_81D5AB4,
+    TrainerHillResumeTimer,
+    TrainerHillSetPlayerLost,
     sub_81D5AD0,
     sub_81D5B2C,
     sub_81D5BBC,
@@ -371,7 +371,7 @@ void InitTrainerHillBattleStruct(void)
         }
         sRoomTrainers->facilityClass[i] = sHillData->tag.floors[sHillData->floorId].trainers[i].facilityClass;
     }
-    sub_80008DC(&gSaveBlock1Ptr->trainerHill.field_3D64);
+    SetVBlankCounterPointer(&gSaveBlock1Ptr->trainerHill.timer);
     FreeDataStruct();
 }
 
@@ -425,7 +425,7 @@ void CopyTrainerHillTrainerText(u8 which, u16 trainerId)
     FreeDataStruct();
 }
 
-static void sub_81D581C(void)
+static void TrainerHillStartChallenge(void)
 {
     nullsub_2();
     if (!sub_81D3B34())
@@ -434,8 +434,8 @@ static void sub_81D581C(void)
         gSaveBlock1Ptr->trainerHill.field_3D6E_0f = 0;
 
     gSaveBlock1Ptr->trainerHill.field_3D6C = 0;
-    sub_80008DC(&gSaveBlock1Ptr->trainerHill.field_3D64);
-    gSaveBlock1Ptr->trainerHill.field_3D64 = 0;
+    SetVBlankCounterPointer(&gSaveBlock1Ptr->trainerHill.timer);
+    gSaveBlock1Ptr->trainerHill.timer = 0;
     gSaveBlock1Ptr->trainerHill.field_3D6E_0c = 0;
     gSaveBlock1Ptr->trainerHill.field_3D6E_0b = 0;
     gSaveBlock1Ptr->trainerHill.field_3D6E_0e = 0;
@@ -446,7 +446,7 @@ static void sub_81D581C(void)
 
 static void sub_81D58D8(void)
 {
-    sub_80008E8();
+    ClearVBlankCounterPointer();
     gSpecialVar_Result = 0;
     if (gSaveBlock1Ptr->trainerHill.field_3D6E_0c)
         gSpecialVar_Result++;
@@ -483,9 +483,9 @@ static void sub_81D59D0(void)
     {
         gSpecialVar_Result = 2;
     }
-    else if (GetTimerValue(&gSaveBlock1Ptr->trainerHill.field_3D68) > gSaveBlock1Ptr->trainerHill.field_3D64)
+    else if (GetTimerValue(&gSaveBlock1Ptr->trainerHill.field_3D68) > gSaveBlock1Ptr->trainerHill.timer)
     {
-        SetTimerValue(&gSaveBlock1Ptr->trainerHill.field_3D68, gSaveBlock1Ptr->trainerHill.field_3D64);
+        SetTimerValue(&gSaveBlock1Ptr->trainerHill.field_3D68, gSaveBlock1Ptr->trainerHill.timer);
         gSaveBlock1Ptr->trainerHillTimes[gSaveBlock1Ptr->trainerHill.tag] = gSaveBlock1Ptr->trainerHill.field_3D68;
         gSpecialVar_Result = 0;
     }
@@ -497,27 +497,27 @@ static void sub_81D59D0(void)
     gSaveBlock1Ptr->trainerHill.field_3D6E_0b = 1;
 }
 
-static void sub_81D5A70(void)
+static void TrainerHillResumeTimer(void)
 {
     if (!gSaveBlock1Ptr->trainerHill.field_3D6E_0c)
     {
-        if (gSaveBlock1Ptr->trainerHill.field_3D64 >= HILL_MAX_TIME)
-            gSaveBlock1Ptr->trainerHill.field_3D64 = HILL_MAX_TIME;
+        if (gSaveBlock1Ptr->trainerHill.timer >= HILL_MAX_TIME)
+            gSaveBlock1Ptr->trainerHill.timer = HILL_MAX_TIME;
         else
-            sub_80008DC(&gSaveBlock1Ptr->trainerHill.field_3D64);
+            SetVBlankCounterPointer(&gSaveBlock1Ptr->trainerHill.timer);
     }
 }
 
-static void sub_81D5AB4(void)
+static void TrainerHillSetPlayerLost(void)
 {
-    gSaveBlock1Ptr->trainerHill.field_3D6E_0d = 1;
+    gSaveBlock1Ptr->trainerHill.hasLost = 1;
 }
 
 static void sub_81D5AD0(void)
 {
-    if (gSaveBlock1Ptr->trainerHill.field_3D6E_0d)
+    if (gSaveBlock1Ptr->trainerHill.hasLost)
     {
-        gSaveBlock1Ptr->trainerHill.field_3D6E_0d = 0;
+        gSaveBlock1Ptr->trainerHill.hasLost = 0;
         gSpecialVar_Result = 0;
     }
     else if (gSaveBlock1Ptr->trainerHill.field_3D6E_0e)
@@ -535,7 +535,7 @@ static void sub_81D5B2C(void)
 {
     s32 total, minutes, secondsWhole, secondsFraction;
 
-    total = gSaveBlock1Ptr->trainerHill.field_3D64;
+    total = gSaveBlock1Ptr->trainerHill.timer;
     if (total >= HILL_MAX_TIME)
         total = HILL_MAX_TIME;
 
@@ -1048,7 +1048,7 @@ bool32 sub_81D6534(void)
 
 static void sub_81D6568(void)
 {
-    if (gSaveBlock1Ptr->trainerHill.field_3D6E_0d)
+    if (gSaveBlock1Ptr->trainerHill.hasLost)
         gSpecialVar_Result = 0;
     else
         gSpecialVar_Result = 1;
@@ -1103,7 +1103,7 @@ static u16 sub_81D6640(void)
         i = (i + 1) % 10;
 
     ptr = gUnknown_0862A5CC[var2][i];
-    minutes = (signed)(gSaveBlock1Ptr->trainerHill.field_3D64) / (60 * 60);
+    minutes = (signed)(gSaveBlock1Ptr->trainerHill.timer) / (60 * 60);
     if (minutes < 12)
         id = 0;
     else if (minutes < 13)