TV Ratings

IMDb · 8 seasons · 36 episodes rated · 2026-10-25

Ratings are IMDb user ratings, taken from IMDb’s public data and updated daily. Each square is an episode. Brighter means a higher rating.

Slow Horses 8.4

<66–77–88–99–10No rating

IMDb episode ratings

Season 1 · 7.9

6/6 episodes rated

123456

Season 2 · 8.2

6/6 episodes rated

123456

Season 3 · 8.4

6/6 episodes rated

123456

Season 4 · 8.3

6/6 episodes rated

123456

Season 5 · 8.2

6/6 episodes rated

123456

Season 6 · 8.4

6/6 episodes rated

123456

Season 7 · —

0/6 episodes rated

123456

Season 8 · —

0/6 episodes rated

123456
About these ratings

Season averages are calculated from rated episodes, not official IMDb season ratings. The rating beside a title is its IMDb series rating.

The five fixed bands are below 6, 6 to under 7, 7 to under 8, 8 to under 9, and 9–10. Colors use the displayed one-decimal score for both seasons and episodes. Hatching means no rating, and an empty space means no season record is available. Episode numbering follows IMDb.