Hull City, Wigan and Charlton suffered relegation, but how was the Championship table predicted to look at the start of the season?
Here, we take a look at how data experts FiveThirtyEight thought the division would pan out back in August 2019.
Did any of their predictions ring true? Scroll down and click through the pages to find out.
1. LUTON TOWN - RELEGATED
Luton Town were predicted to finish 24th by the data experts at the start of the season with 47 points. In reality, Luton Town finished 19th on 51 points and safe from relegation Photo: Stephen Pond
2. CHARLTON ATHLETIC - RELEGATED
Charlton were predicted to finish 23rd by the data experts at the start of the season with 47 points. In reality, Charlton finished 22nd with 48 points and were relegated Photo: Julian Finney
3. BARNSLEY - RELEGATED
Barnsley were predicted to finish 22nd by the data experts at the start of the season with 49 points. In reality, Barnsley finished 21st and safe (just) on 49 points. Photo: George Wood
4. READING
Reading were predicted to finish 21st by the data experts at the start of the season with 49 points. In reality, Reading finished 14th on 56 points. Photo: Alex Davidson