FOX CHAPEL — This one did not go according to plan.

Indiana scored five runs in the first inning — knocking Mars starting pitcher Nathan Furl out of the game in the process — and rolled to a 10-0 five-inning WPIAL Class AAA baseball playoff win over the Planets Tuesday at Fox Chapel.

The win was the Little Indians' sixth in seven games and marked their first playoff victory in a decade.

The loss ended the Planets' season in the first round of the WPIAL tourney for the fourth straight year. Mars (11-7) has not won a playoff game since 1998.

“I'm shocked by this,” Mars coach Brian Hobaugh said. “I really thought we were going to come down here and play one heckuva game today.

“That first inning just killed us.”

It did wonders for Indiana. Every player in its lineup had at least one run scored or RBI on the day.

“I was impressed the way they hit the ball up and down their order,” Hobaugh said of the opposition's 13-hit attack.

Indiana's first four batters reached base against Furl in the bottom of the first inning. After Garrett Ream's one-out RBI double upped the Indians' lead to 3-0, Hobaugh replaced Furl with Cameron Smith.

Blake Shields and Kevin Jack greeted Smith with RBI singles as the Indiana lead ballooned to 5-0.

“They hit my two best guys,” Hobaugh said. “What are you gonna do? We never put at bats together like they did today.”

Furl and Smith were both four-game winners this season. Furl's earned run average was 3.03, Smith's 1.29.

Indiana's 6-foot-4 right-hander, Sean Thompson, scattered three hits and allowed only four base-runners. He threw 67 pitches, 43 for strikes.

“This was a typical outing for Sean,” Indiana coach Ryan Davies said. “Once we staked him to the early lead, he was able to relax a little bit and pitch to contact.

“That first inning enabled our whole team to relax and just play.”

Thompson, who committed to Virginia Commonwealth earlier this year, entered the game with a 3-0 record and 0.88 earned run average this spring, with 55 strikeouts in 37 innings. He struck out four Tuesday.

Mars pitchers threw 107 pitches in less than five frames as Indiana hitters repeatedly worked the count.

All three of Mars' hits — by Ty Reginelli, Connor McGinnis and Sam Williams — were singles. Two of those never left the infield.

Thompson is hitting .441 this season and ended the game via the mercy rule with a run-scoring double to the base of the fence in right-center with two outs in the fifth.

“He was throwing at a speed I thought we could handle,” Hobaugh said. “We beat some good teams this year — Laurel Highlands, Hampton, battled Pine-Richland — and we didn't show anybody down here today what Mars baseball was all about this season.

“That's what's most disappointing to me.”

Reginelli hit .490 for the Planets this spring, barely missing the school-record batting average of .491 set by Rich Hoadley in 1994.

Mars 000 00x x — 0 3 1

Indiana 502 12 x — 10 13 0

W: Sean Thompson 5IP (4K, 1BB). L: Nathan Furl 0.1IP (0K, 1BB).

Mars (11-7): Ty Reginelli 1B, Connor McGinnis 1B, Sam Williams 1B

Indiana (13-7): Donny Clark 1B 2-R, Cole Shaffer 2B 2-1B 2-RBI, Ryan Creps 1B RBI 2-R, Sean Thompson 1B 2B RBI, Zach Schultz RBI, Trent Ream 2B RBI, Blake Shields 1B RBI, Kevin Jack 2-1B 2-RBI, Bo Putt 2-1B