Group size estimator
How many trainers do I need to invite?
Invite 5 to be safe — 4 if everyone is prepared
- Boss CP
- 61,901
- Boss HP
- 25,000
- Raid timer
- 300s
- Party used
- 6
Trainers needed, by attacker level
Scroll sideways for the mixed-lobby column.
| Attacker level | Six of the best counter | A prepared party | A mixed local group | Prepared solo time | Faints per timer |
|---|---|---|---|---|---|
| Level 20 | 5(4.42) | 6(5.81) | 7(6.85) | 26:46 | 6.0 |
| Level 25 | 4(3.87) | 5(4.92) | 6(5.89) | 22:37 | 6.0 |
| Level 30 | 4(3.40) | 5(4.29) | 6(5.05) | 19:45 | 6.0 |
| Level 35 | 4(3.28) | 5(4.06) | 5(4.78) | 18:41 | 6.0 |
| Level 40 | 4(3.18) | 4(3.83) | 5(4.54) | 17:38 | 6.0 |
| Level 45 | 3(2.96) | 4(3.67) | 5(4.35) | 16:53 | 5.9 |
| Level 50 | 3(2.86) | 4(3.57) | 5(4.23) | 16:25 | 5.9 |
Whole trainers in bold, the raw estimator in brackets — 2.04 means two trainers is right on the line and three is comfortable.
Six of the best counter
Every trainer brings six copies of the single best counter — the theoretical floor.
4 trainers at level 40
- Keldeo3.18
A prepared party
Each trainer brings the boss's top six counters, powered up and correctly TM'd.
4 trainers at level 40
- Keldeo3.18
- Terrakion3.64
- Kartana3.83
- Lucario4.01
- Eternatus4.15
- Conkeldurr4.17
A mixed local group
Ranks 13-24: reasonable but unoptimised parties, which is what a public lobby usually is.
5 trainers at level 40
- Pheromosa4.35
- Zacian (Crowned Sword)4.36
- Necrozma (Dusk Mane)4.46
- Marshadow4.49
- Breloom4.52
- Kyurem (Black)4.54
The party these numbers assume
See the full ranked counter list for Mega Kangaskhan · check a real lobby (win chance, who brings what) · make a share card of the top six
How this is worked out
The boss is ranked once at level 40 with rankCached (the same memoised call /raids makes), then the three bands — rank 1, ranks 1-6, ranks 13-24 — are re-simulated at each attacker level with an 8-run Monte Carlo each. Holding the party fixed and moving only its level is deliberate: it answers "what if my party were level 20" rather than "what would a level-20 player's completely different party be", and it is about ten times cheaper than re-ranking every attacker seven times. The Estimator itself is Pokebattler's definition, time to win including rejoin time divided by the raid timer.