Michael N. Guasch (born February 25, 1958) is an American businessman and racing driver, best known for his career in LMPC and LMP3. He was American Le Mans Series champion for PR1/Mathiasen Motorsports in 2013, and European Le Mans Series champion for United Autosports in 2016.

Business ventures Guasch became a lube technician for Express Lube in 1989 shortly after serving in the U.S. Navy as a jet mechanic. In 1992, Guasch became a district manager of SpeeDee Oil Change, before taking over as Vice President of Operations for the entire company in 2017. In parallel, Guasch founded StoneTech Professional and worked at the company before selling it to DuPont in 2005, and was CEO of Molecule Labs.

In 2019, Guasch was featured in "The Gentleman Driver", a Netflix documentary detailing him and three other businessmen-drivers as they balanced work and their racing careers.

Racing career Guasch initially took up dirt racing and motocross at the age of 17, before switching to jet ski competitions and being active there until 1991. In 2005, Guasch began competing in single-seaters, primarily racing in the Star Mazda Championship until 2009. During his stint in junior formulae, Guasch finished runner-up in the 2008 Star Mazda West Coast Championship, as well as clinching the Masters class title in the following year's Star Mazda Championship for JDC MotorSports.

In 2010, Guasch joined United Autosports to drive an Audi R8 LMS in the FIA GT3 European Championship alongside fellow amateur racer Mark Patterson. They scored a best result of 10th three times in the last two rounds to end the year 33rd overall. Switching to the British GT Championship for 2011, Guasch won at Snetterton and took two other podiums to finish sixth in the GT3 standings alongside Matt Bell. That year, Guasch also raced part-time for Genoa Racing in the LMPC class of the American Le Mans Series, winning in both of his starts at the 12 Hours of Sebring and Laguna Seca.

Continuing in ALMS for 2012, Guasch drove for Muscle Milk Pickett Racing in the first three races and scored a lone podium at Long Beach. Moving to PR1/Mathiasen Motorsports for 2013, Guasch won at Sebring and Laguna Seca and scored four other podiums to clinch the LMPC title. After a part-time campaign in the new United SportsCar Championship in 2014, Guasch went full-time again in 2015, taking four wins at the 24 Hours of Daytona, Sebring, Lime Rock and Petit Le Mans to finish runner-up in points alongside Tom Kimber-Smith, and claim the North American Endurance Cup title.

In 2016, Guasch reunited with United Autosports to compete in the LMP3 class of the European Le Mans Series, partnering Alex Brundle and Christian England. The trio secured three wins in a row at the start of the season at Silverstone, Imola and Red Bull Ring, before adding two more podiums to seal the LMP3 title with a race to spare. Guasch then briefly returned to PR1/Mathiasen to make his LMP2 debut in the 2017 IMSA SportsCar Championship, before taking a sabbatical.

In 2019, Guasch returned to LMP3 with United Autosports. After four ELMS rounds with England and a Le Mans Cup podium at Barcelona with Wayne Boyd, a crash at Silverstone left Guasch with a broken rib and ended his season. After recovery, Guasch began racing karts in SKUSA-sanctioned races in the Master Shifter class.

Karting record Karting career summary SeasonSeriesTeamPosition 2021SKUSA SuperNationals – Master ShifterPhenom Racing Group7th 2022SKUSA SuperNationals – Master Shifter19th 2023SKUSA SuperNationals – Master Shifter13th 2024SKUSA SuperNationals – Master Shifter42ndSources:

Racing record Racing career summary Season Series Team Races Wins Poles F/Laps Podiums Points Position 2005 Star Mazda Championship 3 0 0 0 0 2006 Star Mazda Championship 8 0 0 0 0 138 24th 2007 Russell Pro Series 8 0 0 0 1 37 10th2008 Star Mazda West Coast Championship 13 1 2 0 8 4582nd Star Mazda Championship 6 0 0 0 0 106 21st2009 Star Mazda Winter Series 2 0 0 0 1 69 4th Star Mazda Championship JDC MotorSports 10 0 0 0 0 202 16th Molecule Formula Mazda Challenge – Pro Formula Mazda 9 4 7 7 7 298 4th2010 Star Mazda Winter Series 1 0 0 0 0 British GT Championship – GT3 United Autosports 2 0 0 0 0 5 27th FIA GT3 European Championship 12 0 0 0 0 3 33rd Molecule Formula Mazda Challenge – Pro Formula Mazda 1 0 0 0 0 2011 American Le Mans Series – LMPC Genoa Racing 2 2 0 0 2 0 NC British GT Championship – GT3 United Autosports 10 1 0 0 3 110.5 6th Supercar Challenge – GT 2 2 0 0 2 2012 Formula Car Challenge Winter Series – Pro Formula Mazda 2 0 0 0 0 33 10th American Le Mans Series – LMPC Muscle Milk Pickett Racing 3 0 0 0 1 40 12th 2013 American Le Mans Series – LMPC PR1/Mathiasen Motorsports 10 2 0 0 6 1421st 2014 United SportsCar Championship – LMPC PR1/Mathiasen Motorsports 2 0 0 0 0 30 31st 2015 United SportsCar Championship – LMPC PR1/Mathiasen Motorsports 10 4 0 0 5 3132nd 2016 European Le Mans Series – LMP3 United Autosports 6 3 0 0 5 109.51st 2017 IMSA SportsCar Championship – Prototype PR1/Mathiasen Motorsports 2 0 0 0 0 46 25th2019 IMSA Prototype Challenge PR1/Mathiasen Motorsports 1 0 0 0 0 9 50th European Le Mans Series – LMP3 United Autosports 4 0 0 0 0 15 14th Le Mans Cup – LMP3 2 0 0 0 1 23 10thSources:

† As Guasch was a guest driver, he was ineligible to score points.

Complete British GT Championship results (key) (Races in bold indicate pole position) (Races in italics indicate fastest lap) Year Team Car Class 1 2 3 4 5 6 7 8 9 10 11 12 13 DC Points 2010 United Autosports Audi R8 LMS GT3 OUL1 OUL2 KNO1 KNO2 SPA ROC1 ROC2 SIL SNE1 SNE2 BRH1 BRH2 DON 27th 5 2011 United Autosports Audi R8 LMS GT3 OUL1 OUL2 SNE BRH SPA1 SPA2 ROC1 ROC2 DON SIL 6th 110.5

Complete FIA GT3 European Championship results (key) (Races in bold indicate pole position; races in italics indicate fastest lap) Year Entrant Chassis Engine 1 2 3 4 5 6 7 8 9 10 11 12 Pos. Points 2010 United Autosports Audi R8 LMS Audi 5.2 L V10 SIL1 SIL2 BRN1 BRN2 JAR1 JAR2 LEC1 LEC2 ALG1 ALG2 ZOL1 ZOL2 33rd 3

Complete American Le Mans Series results (key) (Races in bold indicate pole position) Year Team Class Make Engine 1 2 3 4 5 6 7 8 9 10 Rank Points 2011 Genoa Racing LMPC Oreca FLM09 Chevrolet LS3 6.2 L V8SEBLBHLRPMOSMDOELKBALLGAPET NC 0 2012 Muscle Milk Pickett Racing LMPC Oreca FLM09 Chevrolet LS3 6.2 L V8SEBLBHLAGLIMMOSMOHELKBALVIRPET 12th 40 2013 PR1/Mathiasen Motorsports LMPC Oreca FLM09 Chevrolet LS3 6.2 L V8 SEB LBH LGA LIM MOS ELK BAL COT VIR PET1st143

Complete IMSA SportsCar Championship results (key) (Races in bold indicate pole position. Races in italics indicate fastest race lap in class. Results are overall/class) Year Team Class Car Engine 1 2 3 4 5 6 7 8 9 10 Rank Points 2014 PR1/Mathiasen Motorsports LMPC Oreca FLM09 Chevrolet LS3 6.2 L V8 DAY SEB LGA KAN WGL IMS ELK VIR COT PET 31st 30 2015 PR1/Mathiasen Motorsports LMPC Oreca FLM09 Chevrolet LS3 6.2 L V8 DAY SEB LGA DET WGI MOS LRP ELK AUS ATL2nd313 2017 PR1/Mathiasen Motorsports P Ligier JS P217 Gibson GK428 4.2 L V8 DAY SEB LBH COA DET WGL MOS ELK LGA PET 25th 46

Complete European Le Mans Series results Year Team Class Car Engine 1 2 3 4 5 6 Rank Points 2016 United Autosports LMP3 Ligier JS P3 Nissan VK50VE 5.0 L V8 SIL IMO RBR LEC SPA EST 1st 109.5 2019 United Autosports LMP3 Ligier JS P3 Nissan VK50VE 5.0 L V8 LEC MNZ CAT SIL SPA ALG 14th 15

Complete Le Mans Cup results (key) (Races in bold indicate pole position; results in italics indicate fastest lap) Year Entrant Class Chassis 1 2 3 4 5 6 7 Rank Points 2019 United Autosports LMP3 Ligier JS P3 LEC MNZ LMS1 LMS2 CAT SPA ALG 10th 23

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