Group size estimator
How many trainers do I need to invite?
Invite 4 to be safe — 3 if everyone is prepared
- Boss CP
- 25,261
- Boss HP
- 20,000
- 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 | 4(3.23) | 4(3.46) | 5(4.27) | 15:55 | 5.9 |
| Level 25 | 3(2.87) | 4(3.02) | 4(3.74) | 13:55 | 5.6 |
| Level 30 | 3(2.55) | 3(2.71) | 4(3.33) | 12:29 | 5.3 |
| Level 35 | 3(2.42) | 3(2.57) | 4(3.19) | 11:49 | 5.0 |
| Level 40 | 3(2.34) | 3(2.47) | 4(3.03) | 11:21 | 4.9 |
| Level 45 | 3(2.26) | 3(2.38) | 3(2.93) | 10:58 | 4.7 |
| Level 50 | 3(2.20) | 3(2.29) | 3(2.85) | 10:33 | 4.5 |
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.
3 trainers at level 40
- Kyurem (White)2.34
A prepared party
Each trainer brings the boss's top six counters, powered up and correctly TM'd.
3 trainers at level 40
- Kyurem (White)2.34
- Blacephalon2.36
- Rayquaza2.40
- Eternatus2.46
- Reshiram2.59
- Kyurem (Black)2.65
A mixed local group
Ranks 13-24: reasonable but unoptimised parties, which is what a public lobby usually is.
4 trainers at level 40
- Galarian Articuno2.97
- Naganadel2.97
- Volcarona2.97
- Heatran3.00
- Blaziken3.01
- Zamazenta (Crowned Shield)3.02
The party these numbers assume
See the full ranked counter list for Bayleef · 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.