NASHVILLE, Tenn. -- Riley LaChance gave Vanderbilt a second-half spark, which was just what Vanderbilt needed.The junior guard scored nine of the Commodores first 11 points in the seconds half as Vanderbilt pulled away for a 75-52 win over Norfolk State in the on-campus portion of Las Vegas Invitational on Friday night.His surge turned a nine-point halftime lead into a 16-point advantage and the Spartans (2-2) never got closer than 11 the rest of the way.Riley played his best five minutes of the season to start that second half, Vanderbilt coach Bryce Drew said. He gave us a lot of energy on both ends, which kind of started on the defensive end, I thought. He really got out in transition and hit some 3s that were key for us.Matthew Fisher-Davis led Vanderbilt (2-1) with 18 points, including four 3-pointers, and LaChance added 12, highlighted by three 3-pointers.I was definitely in a good rhythm and my teammates did a good job of pumping me up, and we do a good job of pumping each other up, LaChance said. I think when we made that run in the second half we had really good energy and really good togetherness.Jeff Roberson grabbed 11 rebounds and scored 11 points for the Commodores, who hit 10 of 28 from 3-point range.Norfolk State lost to a Southeastern Conference team for the second time in a week, including a 78-74 defeat at Mississippi State on Nov. 11.A lot of it was our defensive mistakes, to be honest with you, Spartans coach Robert Jones said. We left Fisher-Davis three times on rotations and he had wide-open 3s, so a lot of it was us, not them really. The overall energy wasnt how we play for whatever reason.Jonathan Wade remained hot for the Spartans with 20 points and seven rebounds. Wade scored a career-high 34 points in Tuesdays 91-55 rout of Elizabeth City State.We kind of beat ourselves tonight, Wade said. If our energy level is not there, were not the team were capable of being. We kind of have mental lapses sometimes as a team.The Spartans made only 30 percent of their shots from the floor, hitting 18 of 60.Norfolk State led by three points before Vanderbilt went on a 10-0 run to take a 32-25 lead on LaChances 3-pointer with 3:26 left in the first half.The Commodores missed their first six shots from the floor, but hit 14 of 16 foul shots in the first 20 minutes to help them go on top 37-28 at halftime.BIG PICTURENorfolk State: The Spartans werent able to contain Fisher-Davis and LaChance, and their perimeter defense couldnt stop the Commodores 3-point shooters. Vandy hit 10 treys, Norfolk State was 2 of 11.Vanderbilt: The Commodores have found a rhythm in the past two home wins under first-year coach Bryce Drew, who spent the previous five seasons at his alma mater, Valparaiso. Vanderbilt passed the ball crisply with 16 assists, compared to two for Norfolk State.GOOD WEEKFisher-Davis has looked good in both of Vanderbilts wins this week. Hes played a complete game, Drew said. We all know how well he shoots the ball, but hes been putting the ball down on the floor a little bit and hes been passing it and on the defensive end I think hes done a much better job taking pride in defending his man.UNBALANCED SCORINGWade was the only Spartan in double figures. Alex Long, Zaynah Robinson, Micah Goss and Carrington Ward went a combined 6 for 33 from the floor.UP NEXTNorfolk State visits Butler on Monday for the second game in a 10-day road trip.Vanderbilt hosts Bucknell on Monday in the final of a three-game homestand. 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The rules limiting a driver to one helmet design per season have officially been relaxed at the most recent meeting of the FIAs World Motor Sport Council (WMSC).The oft-derided rule requires drivers to stick to a single helmet design for the entire season to make them easier to spot for spectators.This year a number of drivers have run one-off helmet designs at stand-alone races, with the FIA turning a blind eye to the changes as long as the design reverts to the original livery at the next round.Now the WMSC has formalised the rule to clarify what is and what is not allowed.dddddddddddd.Drivers must continue to present their helmets in substantially the same livery at every event of the FIA Formula One World Championship for easy recognition of the driver in the car, a statement said.However, a driver will now be allowed one event [such as a home race] for a special livery [at the drivers choice].Drivers will also be allowed to change their helmet liveries if changing teams during the season. 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