Three days after besting a formidable Georgia team, South Carolina was bounced back into the loss column by Arkansas 75-55.
The Razorbacks (17-5, 6-3 SEC) constricted South Carolina's offense with its full court press, scoring 21 points off its 20 forced turnovers.
South Carolina forced nine turnovers Tuesday night, but only scored one point off the nine.
The 20-point loss is South Carolina's worst defeat of the season.
A 27.9 field goal percentage kept the Gamecocks' offense at bay despite outrebounding the Razorbacks. Arkansas secured 46 rebounds to South Carolina's 48.
South Carolina's season average now stands at just over 41 percent through 21 games.
Before the game, the Gamecocks were No. 231 in the nation in field goal percentage.
Freshman guard Marcus Stroman scored four of the Gamecocks' first six points, knotting the score at six after just over six minutes of play.
The two teams traded blows until a three-pointer by senior guard Rashad Madden sparked a nine-point Arkansas run.
The Razorbacks carried their lead into halftime, then pushed their advantage to double digits in the early minutes of the second half.
The Gamecocks did not do much to help their cause on the road as they relapsed back into their ice-cold shooting habits.
South Carolina hit eight of its final 33 field goals, and was atrociously awful down the stretch, missing 10 of its last field goals.
Though the Gamecocks earned two more rebounds than Arkansas did, the Razorbacks doubled South Carolina's second chance points, 16 to eight, respectively.
Sophomore forward Bobby Portis victimized South Carolina all night, posting his ninth double-double of the season. Portis led the team with 18 points and 13 rebounds. He shot more than 53 percent from the field (7-13) and was a perfect 4-for-4 from the free throw line.
South Carolina will conclude its two-game road stretch with a visit to Vanderbilt Saturday. The Gamecocks have not faced the Commodores this season, but they ended a three-game skid against Vanderbilt last season with a 65-59 win.