The Comprehensive Guide
Pokémon Raid Capture Probability Calculator: Max Raids vs Tera Raids
Capture mechanics in Pokémon underwent a massive transformation with the introduction of Raids. In the wild, your success depends on status moves and False Swipe. In a Raid, success depends on game version, host status, and item choice. Our **Pokémon Raid Capture Probability Calculator** explores the mathematics of the Den and the Tera Crystal to ensure you never lose a rare find.
The Generation Divide: 8 vs 9
To use this calculator effectively, you must understand the radical shift in philosophy between *Pokémon Sword & Shield* (Gen 8) and *Pokémon Scarlet & Violet* (Gen 9).
Generation 9: The 100% Guarantee
In *Scarlet & Violet*, the capture mechanic for Tera Raids is remarkably simple: **If you defeat the Tera Pokémon, your catch is 100% guaranteed.** This applies to everything from 1-star Fidoughs to the legendary 7-star "Mightiest Mark" bosses like Mewtwo or Charizard.
Why does this matter? Because it allows trainers to use **Aesthetics** as their only metric. Since the catch cannot fail, you can safely use your one-of-a-kind "Apriballs" (Lure, Heavy, Moon, etc.) or even a Beast Ball without fear of wasting the item. The only "probability" involved in Gen 9 raids is whether you can actually win the fight.
The Complexity of Generation 8: Max Raids
If you are playing *Sword & Shield*, the math is much more punishing. Unlike Tera Raids, Max Raids use a complex hierarchy of modifiers that can make guests extremely frustrated.
The Host Advantage
In a standard, non-event Max Raid, the **Host** (the player who found the den) usually has a **100% capture rate**, regardless of the ball used. This was intended to reward players for doing the work of hunting for dens. However, this advantage disappears if the raid is a "Promotional/Event" raid (indicated by specific species appearing regardless of the den type).
The Guest Penalty
If you join a raid via the Y-Comm, you are a **Guest**. Guests do not get the host's 100% guarantee. Instead, the game uses a formula based on the Pokémon's species catch rate, the Star rating, and your Ball Modifier.
- Standard 5-Star Raid: Guests might have a 10-20% chance with an Ultra Ball.
- Gigantamax (G-Max) Raids: These are notorious for having a base catch rate of 3 (the same as a legendary). A guest throwing a Poké Ball at a 5-star G-Max Machamp has roughly a **3-5% chance** of success.
Optimizing Your Ball Choice in Max Raids
Because Guests struggle so much in Gen 8, using the right ball is surgical. Our calculator ranks the efficacy of items based on raid conditions:
- Repeat Ball (3.5x): This is the single best ball for Max Raids. Since most raiders are hunting species they’ve seen before, the 3.5x multiplier is the gold standard for success.
- Dusk Ball (3.0x): Since Max Raids occur inside "Dens," they are technically considered to be in caves. This gives the Dusk Ball a permanent 3x multiplier, making it the best general-purpose option.
- Net Ball (3.5x): If the raid boss is Water or Bug type, the Net Ball matches the Repeat Ball's power.
The Beast Ball Challenge
One of the most famous community challenges in Gen 8 was catching a shiny G-Max Pokémon in a **Beast Ball**. Because the Beast Ball has a dismal **0.1x multiplier** against non-Ultra-Beasts, a guest’s chance of success was often less than 1%. Our calculator can simulate these "impossible" throws, showing just how many thousands of raids it would take to secure such a capture on average.
Special Cases: Dynamax Adventures
In the *Crown Tundra* DLC, players can participate in "Dynamax Adventures." These function differently from standard Max Raids. In these adventures, **all captures are 100% guaranteed** for all four players. This includes the legendary Pokémon at the end. This shift in Gen 8 DLC was a precursor to the 100% guarantee logic seen later in Gen 9.
Host Status and Event Raids
Always check if a raid is part of an "Event." During events (like the "Magikarp Shiny Event"), even the Host loses their 100% guarantee. In these cases, the game treats the capture like a wild encounter with a high level Pokémon. In these scenarios, the **Host** should also switch to a Repeat Ball or Dusk Ball to avoid losing a rare find.
Conclusion: Tactics for the Den
The **Pokémon Raid Capture Probability Calculator** is your roadmap to resource management. If you are in Paldea (Gen 9), feel free to match your balls to your Pokémon’s colors. If you are in Galar (Gen 8), trust the math: use a Repeat Ball, check your host status, and only use your Master Ball when the percentages are against you. Understand the dens, master the math, and complete your collection with confidence.