Pokemon Go Raid Bosses

Listed below are the current Raid bosses in Pokemon GO, according to the Silph Research Group.

Update October 26th, 2020: Darkrai is back in raids! Be smart. Please obey all local restrictions on travel and gatherings when raiding.
Impossible You need a bigger group!
Hardcore Experts only! (Technically possible and someone has achieved it.)
Hard Achievable with any combo of the top 3 counters powered up to level 35.*
Medium Achievable with any combo of the top 6 counters powered up to level 30.* (5% buffer incl.)
Easy Achievable with any combo of the top 12 counters powered up to level 25.* (10% buffer incl.)
Very Easy Achievable with any combo of the top 24 counters powered up to level 20.* (15% buffer incl.)
Split Up Very easy with half this number of trainers! Group should split up for max rewards.
* No Weather or Friendship boosts required. See PokeBattler.com for top Raid Boss counter lists. PokeBattler.com Estimator utilized to rate difficulty.
Shiny variant can be obtained as a Raid boss reward encounter
NOT YET CONFIRMED Confirmation pending. We've not yet confirmed this boss in our controlled study, but believe it may still be appearing! Typically clarified within a few hours.

Mega Raids

Mega Charizard X
CP Range
1,574 - 1,651
Boosted CP
1,968 - 2,064
Counters » Group Size Difficulty:
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2
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8+
Mega Charizard Y
CP Range
1,574 - 1,651
Boosted CP
1,968 - 2,064
Counters » Group Size Difficulty:
1
2
3
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5
6
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8+
Mega Blastoise
CP Range
1,338 - 1,409
Boosted CP
1,673 - 1,761
Counters » Group Size Difficulty:
1
2
3
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8+
Mega Pidgeot
CP Range
1,151 - 1,216
Boosted CP
1,439 - 1,521
Counters » Group Size Difficulty:
1
2
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8+
Mega Gengar
CP Range
1,566 - 1,644
Boosted CP
1,958 - 2,055
Counters » Group Size Difficulty:
1
2
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8+
Mega Houndoom
CP Range
1,432 - 1,505
Boosted CP
1,790 - 1,882
Counters » Group Size Difficulty:
1
2
3
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8+

Tier 5

Darkrai
CP Range
2,048 - 2,136
Boosted CP
2,560 - 2,671
Counters » Group Size Difficulty:
1
2
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8+

Tier 3

Raichu
CP Range
1,180 - 1,247
Boosted CP
1,476 - 1,558
Counters » Group Size Difficulty:
1
2
3
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8+
Gengar
CP Range
1,566 - 1,644
Boosted CP
1,958 - 2,055
Counters » Group Size Difficulty:
1
2
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8+
Alolan Marowak
CP Range
988 - 1,048
Boosted CP
1,235 - 1,311
Counters » Group Size Difficulty:
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2
3
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8+
Banette
CP Range
1,244 - 1,313
Boosted CP
1,555 - 1,642
Counters » Group Size Difficulty:
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2
3
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8+
Absol
CP Range
1,370 - 1,443
Boosted CP
1,712 - 1,805
Counters » Group Size Difficulty:
1
2
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8+

Tier 1

Bulbasaur
CP Range
590 - 637
Boosted CP
737 - 796
Counters » Group Size Difficulty:
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2
3
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7
8+
Charmander
CP Range
516 - 560
Boosted CP
645 - 700
Counters » Group Size Difficulty:
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2
3
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7
8+
Squirtle
CP Range
497 - 540
Boosted CP
621 - 675
Counters » Group Size Difficulty:
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2
3
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6
7
8+
Misdreavus
CP Range
1,039 - 1,100
Boosted CP
1,298 - 1,376
Counters » Group Size Difficulty:
1
2
3
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8+
Sableye
CP Range
789 - 843
Boosted CP
986 - 1,054
Counters » Group Size Difficulty:
1
2
3
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8+
Mawile
CP Range
877 - 934
Boosted CP
1,096 - 1,167
Counters » Group Size Difficulty:
1
2
3
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7
8+
Duskull
CP Range
364 - 403
Boosted CP
456 - 504
Counters » Group Size Difficulty:
1
2
3
4
5
6
7
8+
Timburr
CP Range
699 - 751
Boosted CP
874 - 939
Counters » Group Size Difficulty:
1
2
3
4
5
6
7
8+