What is this and why do I need it?

Most trainers are conditioned to seek 15 / 15 / 15 IVs for raids and Master League battles. However, competitive Pokémon GO PvP—specifically the Great League (1,500 CP) and Ultra League (2,500 CP)—requires a completely different mindset.

1. Why You Need a PvP IV Calculator

In the Great and Ultra Leagues, the primary goal is not to maximize individual IVs, but to maximize the Pokémon's overall bulk and total stats while staying just under the CP limit.

The standard 15 / 15 / 15 Pokémon often hits the CP cap at a significantly lower Level than a Pokémon with optimized PvP IVs. This calculator finds the combination that allows your Pokémon to reach the highest possible level before crossing the CP threshold, maximizing its total Stat Product (TSP).

2. How the Low Attack IV Strategy Works

The key to maximizing stats is understanding the CP calculation formula:

• Attack (ATK) is Weighted Heavily: The Attack stat has the largest multiplier in the CP formula. This means increasing the ATK IV causes the CP to spike much faster than increasing Defense (DEF) or Stamina (STA) IVs.
• Maximizing Level (Bulk): By opting for a low Attack IV (close to 0), the Pokémon can gain more Levels before reaching the CP cap.
• The Benefit: Since the base stats for Defense and Stamina are tied directly to the Pokémon's Level, a higher level grants higher overall Defense and Stamina stats.

In summary: A low ATK IV is the sacrifice that allows you to sneak in a higher Level, ultimately resulting in a Pokémon that is significantly bulkier and better able to survive opponent attacks than a 15 / 15 / 15 counterpart.

3. What This Tool Does

This calculator takes the guesswork out of PvP optimization. It instantly tells you:

• The Rank 1 IV Spread: The perfect IV combination (e.g., 0 / 15 / 15) for maximizing your Pokémon's effectiveness under the CP limit.
• Total Stat Product (TSP): The overall stat score of your Pokémon, expressed as a percentage of the Rank 1 potential. The higher the TSP percentage, the better your Pokémon's bulk and utility in battle.

Use this tool to evaluate your captures, find their true potential, and dominate the Battle League!