You “master” a tank when you earn more Base XP in a single battle than the highest average Base XP earned in a single battle by 99% of players of that same tank within the past seven days.
Simply put, just try and beat the average.
This earns you 3x
Tank Mastery emblems!
If you attain mastery in one of the tanks below while the Tank Mastery mission is active, you also get a +100% (2 hours) 
Free XP Personal Reserve!
- Type 5 Ke-Ho Mastery
- Grant Mastery
- B1 Mastery
- T110E3 Mastery
Rewards:
- 1x Personal Reserves: +100%
Free XP (2 hours) - 3x
Tank Mastery emblems (restricted to tank)
Free XP (2 hours)Conditions: Get the “Ace Tanker” Mastery Badge in a
IV
Type 5 Ke-Ho
Restrictions:
- Grand and Random Battles Only
- Once Per Account
Rewards:
- 1x Personal Reserves: +100%Free XP (2 hours)
- 3xTank Mastery emblems (restricted to tank)
Conditions: Get the “Ace Tanker” Mastery Badge in a
IV
Grant
Restrictions:
- Grand and Random Battles Only
- Once Per Account
Rewards:
- 1x Personal Reserves: +100%Free XP (2 hours)
- 3xTank Mastery emblems (restricted to tank)
Conditions: Get the “Ace Tanker” Mastery Badge in a
IV
B1
Restrictions:
- Grand and Random Battles Only
- Once Per Account
Rewards:
- 1x Personal Reserves: +100%Free XP (2 hours)
- 3xTank Mastery emblems (restricted to tank)
Conditions: Get the “Ace Tanker” Mastery Badge in a
X
T110E3
Restrictions:
- Grand and Random Battles Only
- Once Per Account
- Rheinmetall Panzerwagen Mastery
- T-34-2 Mastery
- Kranvagn Mastery
- Stug III Ausf. G Mastery
Rewards:
- 1x Personal Reserves: +100%Free XP (2 hours)
- 3xTank Mastery emblems (restricted to tank)
Conditions: Get the “Ace Tanker” Mastery Badge in a
X
Rheinmetall Panzerwagen
Restrictions:
- Grand and Random Battles Only
- Once Per Account
Rewards:
- 1x Personal Reserves: +100%Free XP (2 hours)
- 3xTank Mastery emblems (restricted to tank)
Conditions: Get the “Ace Tanker” Mastery Badge in a
VIII
T-34-2
Restrictions:
- Grand and Random Battles Only
- Once Per Account
Rewards:
- 1x Personal Reserves: +100%Free XP (2 hours)
- 3xTank Mastery emblems (restricted to tank)
Conditions: Get the “Ace Tanker” Mastery Badge in a
X
Kranvagn
Restrictions:
- Grand and Random Battles Only
- Once Per Account
Rewards:
- 1x Personal Reserves: +100%Free XP (2 hours)
- 3xTank Mastery emblems (restricted to tank)
Conditions: Get the “Ace Tanker” Mastery Badge in a
V
StuG III Ausf. G
Restrictions:
- Grand and Random Battles Only
- Once Per Account
- Valentine Mastery
- Type 1 Chi-He Mastery
- VK 30.01 (H) Mastery
- SU-100M1 Mastery
Rewards:
- 1x Personal Reserves: +100%Free XP (2 hours)
- 3xTank Mastery emblems (restricted to tank)
Conditions: Get the “Ace Tanker” Mastery Badge in a
IV
Valentine
Restrictions:
- Grand and Random Battles Only
- Once Per Account
Rewards:
- 1x Personal Reserves: +100%Free XP (2 hours)
- 3xTank Mastery emblems (restricted to tank)
Conditions: Get the “Ace Tanker” Mastery Badge in a
IV
Type 1 Chi-He
Restrictions:
- Grand and Random Battles Only
- Once Per Account
Rewards:
- 1x Personal Reserves: +100%Free XP (2 hours)
- 3xTank Mastery emblems (restricted to tank)
Conditions: Get the “Ace Tanker” Mastery Badge in a
V
VK 30.01 (H)
Restrictions:
- Grand and Random Battles Only
- Once Per Account
Rewards:
- 1x Personal Reserves: +100%Free XP (2 hours)
- 3xTank Mastery emblems (restricted to tank)
Conditions: Get the “Ace Tanker” Mastery Badge in a
VII
SU-100M1
Restrictions:
- Grand and Random Battles Only
- Once Per Account
- WZ-132 Mastery
- AMX 30 B Mastery
- VK 45.02 (P) Ausf. B Mastery
- Jagdpanzer E 100 Mastery
Rewards:
- 1x Personal Reserves: +100%Free XP (2 hours)
- 3xTank Mastery emblems (restricted to tank)
Conditions: Get the “Ace Tanker” Mastery Badge in a
VIII
WZ-132
Restrictions:
- Grand and Random Battles Only
- Once Per Account
Rewards:
- 1x Personal Reserves: +100%Free XP (2 hours)
- 3xTank Mastery emblems (restricted to tank)
Conditions: Get the “Ace Tanker” Mastery Badge in a
X
AMX 30 B
Restrictions:
- Grand and Random Battles Only
- Once Per Account
Rewards:
- 1x Personal Reserves: +100%Free XP (2 hours)
- 3xTank Mastery emblems (restricted to tank)
Conditions: Get the “Ace Tanker” Mastery Badge in a
IX
VK 45.02 (P) Ausf. B
Restrictions:
- Grand and Random Battles Only
- Once Per Account
Rewards:
- 1x Personal Reserves: +100%Free XP (2 hours)
- 3xTank Mastery emblems (restricted to tank)
Conditions: Get the “Ace Tanker” Mastery Badge in a
X
Jagdpanzer E 100
Restrictions:
- Grand and Random Battles Only
- Once Per Account
