Indiana snapped a three-game losing streak and swept the four-game season series with Connecticut.
Maggie Lucas and Natalie Achonwa each scored 11 for Indiana (18-12). The Fever went 15 for 15 at the line and outrebounded the Sun 39-26.
Connecticut did not reach double-digit scoring until the 5:28 mark of the second quarter. The Sun scored seven points in the first quarter and eight in the second to trail 41-15 at the break. Catchings had 11 points in the half for Indiana, which held Connecticut to 5-of-34 shooting.
Kelsey Bone led Connecticut (13-18) with 17 points. The Sun set a franchise record for fewest points in a half at 15.