The Premier League revealed four incorrect VAR interventions this season and claims accuracy has improved.

According to the Premier League, its Video Assistant Referee system (VAR) has made 13 errors this season, including four "incorrect interventions".

Refereeing has been under the limelight this season, with growing concern over the quality of officiating at the highest levels of the English game. A series of contentious decisions have fueled calls for VAR to be scaled back or even eliminated, while the drama surrounding referee David Coote, who was fired when a video surfaced showing him calling former Liverpool manager Jurgen Klopp a "German c***," has only fueled criticism of officials.

However, a review of all decisions by the Premier League's key match incidents (KMI) panel found that VAR had made only 13 mistakes over 230 games as of the end of January, down from 20 errors at the same period last season.

The 13 VAR errors are comprised of four improper interventions and nine missed interventions, in which the video assistant should have intervened but did not. The panel determined that 66 of the 70 VAR interventions this season had been correct.

"Nobody here underestimates the significance and impact of one single error," said chief football officer Tony Scholes. "We understand that a single blunder may cost clubs. Points and results can cost managers their jobs, and players their places."

While the Premier League did not detail the missed interventions, Scholes did identify four instances in which VAR intervened and the KMI panel made the incorrect decision.

The data covers match round 23, when Michael Oliver dismissed Arsenal's Myles Lewis-Skelly. The league has not stated if the tribunal considered that an improper on-field decision, a missed intervention, or both. An impartial commission annulled the red card on appeal.

The accuracy of final decisions on KMIs is stated to be 96.4 percent, up from 95.7%.

VAR has four inappropriate interventions.

1. Dango Ouattara disallowed the goal.

Ouattara believed he had headed a winner for Bournemouth against Newcastle in August, and referee David Coote awarded the goal on the field. However, Tim Robinson, the VAR, ruled it out for handball. As he deemed it a factual decision rather than subjective, he did not send Coote to the monitor to review it. The KMI Panel felt the goal should have stood.

2. Penalty to Matthijs De Ligt

The Manchester United defender's challenge on West Ham forward Danny Ings in a match on October 27 was not penalized on the field by Coote, but Oliver, using VAR, requested a review. Coote awarded the penalty, which Jarrod Bowen converted in stoppage time to give the Hammers a 2-1 victory. That result was exceedingly costly for United's head coach, Erik ten Hag, who was fired the following day. The KMI panel verdict added insult to injury for Ten Hag.

3. Red card for Christian Norgaard.

Brentford's Norgaard caught Everton goalkeeper Jordan Pickford on the knee during a November 23 match, but referee Chris Kavanagh did not award a free-kick. VAR Matt Donohue advised Kavanagh to review the incident for a possible red card and promptly dismissed the Dane, a decision the KMI Panel disagreed with. 

4. Offside against Chris Wood.

Forest were initially awarded a fourth goal for Nikola Milenkovic against Southampton last month, but VAR intervened and recommended that Anthony Taylor examine the decision on the basis that Wood, who was offside, was interfering with play. The goal was disallowed, but the KMI Panel believed it should have been given.