Coty Clarke scored four of his seven points in OT from the foul line and Arkansas upset the Wildcats 71-67 on Thursday night to complete a season sweep.
Foul shots were the difference in the game, with Arkansas making all six attempts in overtime and going 16 for 16 overall. Kentucky was 12 of 22 from the line and just 6 of 14 in the second half.
The surging Razorbacks (19-9, 8-7) have won four straight and six of seven. They evened their OT record at 2-2.
Willie Cauley-Stein led Kentucky with 16 points and 13 rebounds.