Quinton de Kock equalled an IPL record of MS Dhoni.
Against Rajasthan Royals, he crossed the 50 mark for the 24th time.
Playing for Kolkata Knight Riders, De Kock scored an unbeaten 97.
Dhoni had breached the 50-run mark 24 times in 265 games.
KL Rahul holds the top spot on the list.
Rahul has recorded 25 IPL fifties as a designated keeper.
He has 37 half-centuries in the tournament.
Dinesh Karthik registered 21 IPL fifties as a wicketkeeper-batter.
Ex-KKR star Robin Uthappa holds the fifth spot.
He slammed 18 IPL fifties, playing as a keeper.