The win improved the Panthers' record to 2-0. They will face Judson on Saturday in their final game of the tournament.
Payno had a team-high 12 points and 10 rebounds. Farr added 10 points and a career-high 14 rebounds. The Panthers controlled the boards in the game, outrebounding Trinity 49-29.
"The best news of the day is we are 2-0. A real tough scrappy team in Trinity, but we found a way to get a win," Coach Lee Buchanan said. "Farr and Payno played well inside and went to work on the glass. I thought (Jaide) Walker and (Austin) Richardson played well off the bench and helped bring a lot of energy to the game."
Buchanan played all 17 on his roster in the game. LC had 14 different players score in the game. The Panthers' bench outscored the short-handed Tigers, who dressed only seven players, 31-2.
Trinity led 12-4 midway through the first period. Megan Garcia's 3-pointer put the Panthers up 19-17, but Kandice Blackman answered with one of her own to give the Tigers a 20-19 lead at the end of the period.
The Panthers did not take the lead for good until the closing seconds of the first half. Jeris Johnson's jumper put LC up 34-33, then Walker added a pair of free throws to make it 36-33 at halftime.
In the third period, Richardson hit one of two free throws for a 51-42 advantage. Trinity cut the Panthers' lead to four, 52-48, by the end of the quarter.
The Panthers pulled away in the last stanza. Walker's put back of a missed shot gave LC its largest lead, 69-52.