Pokemon Go Raid Bosses

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

Update June 2nd, 2020: Raid bosses have returned to the Sinnoh Throwback Challenge line-up. 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.

Tier 5

Reshiram
CP Range
2,217 - 2,307
Boosted CP
2,771 - 2,884
Counters » Group Size Difficulty:
1
2
3
4
5
6
7
8+

Tier 4

Alolan Marowak
CP Range
988 - 1,048
Boosted CP
1,235 - 1,311
Counters » Group Size Difficulty:
1
2
3
4
5
6
7
8+
Galarian Weezing
CP Range
1,242 - 1,310
Boosted CP
1,553 - 1,637
Counters » Group Size Difficulty:
1
2
3
4
5
6
7
8+
Rhydon
CP Range
1,736 - 1,816
Boosted CP
2,170 - 2,270
Counters » Group Size Difficulty:
1
2
3
4
5
6
7
8+
Aggron
CP Range
1,636 - 1,714
Boosted CP
2,045 - 2,143
Counters » Group Size Difficulty:
1
2
3
4
5
6
7
8+
Excadrill
CP Range
1,770 - 1,853
Boosted CP
2,212 - 2,317
Counters » Group Size Difficulty:
1
2
3
4
5
6
7
8+

Tier 3

Alolan Raichu
CP Range
1,238 - 1,306
Boosted CP
1,548 - 1,633
Counters » Group Size Difficulty:
1
2
3
4
5
6
7
8+
Omastar
CP Range
1,517 - 1,592
Boosted CP
1,897 - 1,990
Counters » Group Size Difficulty:
1
2
3
4
5
6
7
8+
Kabutops
CP Range
1,476 - 1,550
Boosted CP
1,845 - 1,938
Counters » Group Size Difficulty:
1
2
3
4
5
6
7
8+
Shuckle
CP Range
189 - 231
Boosted CP
236 - 289
Counters » Group Size Difficulty:
1
2
3
4
5
6
7
8+
Donphan
CP Range
1,644 - 1,722
Boosted CP
2,055 - 2,152
Counters » Group Size Difficulty:
1
2
3
4
5
6
7
8+

Tier 2

Alolan Exeggutor
CP Range
1,643 - 1,722
Boosted CP
2,055 - 2,153
Counters » Group Size Difficulty:
1
2
3
4
5
6
7
8+
Gligar
CP Range
1,000 - 1,061
Boosted CP
1,250 - 1,326
Counters » Group Size Difficulty:
1
2
3
4
5
6
7
8+
Nosepass
CP Range
521 - 567
Boosted CP
651 - 709
Counters » Group Size Difficulty:
1
2
3
4
5
6
7
8+
Sableye
CP Range
789 - 843
Boosted CP
986 - 1,054
Counters » Group Size Difficulty:
1
2
3
4
5
6
7
8+
Mawile
CP Range
877 - 934
Boosted CP
1,096 - 1,167
Counters » Group Size Difficulty:
1
2
3
4
5
6
7
8+

Tier 1

Larvitar
CP Range
548 - 594
Boosted CP
686 - 743
Counters » Group Size Difficulty:
1
2
3
4
5
6
7
8+
Bagon
CP Range
612 - 660
Boosted CP
765 - 826
Counters » Group Size Difficulty:
1
2
3
4
5
6
7
8+
Hippopotas
CP Range
723 - 776
Boosted CP
904 - 970
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+
Klink
CP Range
502 - 546
Boosted CP
628 - 683
Counters » Group Size Difficulty:
1
2
3
4
5
6
7
8+