Tamika Catchings added 20 points and 10 rebounds for the Fever. Catchings posted her 82 career double-double, breaking a second-place tie in WNBA history with Yolanda Griffith. Lisa Leslie has the record with 157.
The Fever (22-12) matched their franchise record for wins in a season. Indiana had lost three straight before beating Washington on Friday.
Indiana held the Shock to 32.1 percent shooting, the lowest by a Fever opponent this season. The Fever also outscored the Shock 24-14 from the free-throw line.
Indiana, the No. 2 seed in the Eastern Conference playoffs, will host the Atlanta Dream in Game 1 of the series on Friday. The Dream beat the Fever last year in the Eastern Conference finals.
The Fever won easily despite playing without three starters. Katie Douglas sat out with an illness, and guards Briann January and guard Shavonte Zellous missed the game due to concussion-like symptoms. Indiana was unable to rest starters because it had only eight active players.
Catchings scored only nine points against Washington on Friday, just the second time this season she failed to score at least 10. She bounced back by making 7 of 10 shots from the field.
Indiana outscored the Shock 25-8 in the second quarter and held them to 2-for-14 shooting in the period. The Fever trailed 24-18 at the end of the first quarter but led 43-32 at the break. Catchings had 14 points and 10 rebounds in the first half, and Jeanette Pohlen added 10 points.
The Fever opened the third quarter on a 5-0 run, leading to a timeout by the Shock. Tulsa didn’t score for the first 2:30 of the period. The Fever took a 71-43 lead into the fourth quarter.
The Fever had seven turnovers in the first quarter, but just 10 the rest of the game.