Purdy hits top spot

Brock Purdy took over the top spot for career passer rating in the NFL.

Purdy passed the 1,500 attempt threshold to qualify for career leaderboards on Monday night and has a 105.6 passer rating to top previous leader Lamar Jackson's 102.7.

The passer rating stat was created in the 1970s to create a single number to grade quarterbacks from different eras. The rating uses four statistics — completion percentage, yards per attempt, touchdown passes and interceptions — to give a number on a scale of zero to 158.3.

The rating favours modern quarterbacks as the current style of play has led to a higher completion percentage and far fewer interceptions than when the stat was created.

Only one of the top 25 current players on the leaderboard — Hall of Famer Steve Young — began his career more than 30 years ago, with players such as Jimmy Garoppolo and Tua Tagovailoa ranking ahead of all-time greats such as Joe Montana and Dan Marino.