Marcus Thorbjörn Ericsson (born 2 September 1990) is a Swedish racing driver, who competes in the IndyCar Series for Andretti.

Born and raised in Kumla, Ericsson began competitive kart racing aged nine, winning several national titles.

He now runs a kart circuit and he told me about a nine-year old kid who'd walked in off the street and nearly broke the lap record", recalled Richard Dutton, head of Fortec Motorsport.

In 2006 Ericsson's career got backing from former Champ Car driver and 1999 Indianapolis 500 winner Kenny Bräck, who said:I spotted Marcus at a race in Gothenburg.

Tests followed with the British Formula 3 team Räikkönen Robertson Racing as part of his prize for winning the title that year.

Afterward Ericsson had a test with frontrunning Formula 3 Euro Series team ASM, later ART Grand Prix.

[citation needed] During the winter of 2008, Ericsson signed a contract with the Japanese F3 team TOM'S to compete full-time in the championship for the upcoming 2009 season.

Ericsson said that he was more likely to gain the experience needed to win the Macau Grand Prix in comparison to competing further in the British championship.

[8] However, it was later confirmed that Ericsson would drive for Super Nova Racing in the 2010 GP2 Series,[9] although he was replaced with Jake Rosenzweig for the final two rounds.

He took his first series victory at Valencia, but only scoring points on two further occasions restricted him to seventeenth place in the drivers' championship.

[citation needed] In 2013, he got the chance to drive for the reigning champions DAMS, taking pole positions in Spain and Great Britain.

In Germany, he won the feature race, and he continued with podium positions in Hungary, Belgium, Singapore, and Abu Dhabi to finish sixth in the championship.

[citation needed] Ericsson drove for Brawn GP at the young driver test at Circuito de Jerez over three days, on 1–3 December 2009.

[13] On 21 January 2014, the team announced that Ericsson and Kobayashi would be their race driver line up for the forthcoming season, with Robin Frijns as reserve.

[14] Ericsson qualified 20th in his debut race– the 2014 Australian Grand Prix, running 11th before he fell back with oil pressure problems.

[24] Due to Caterham F1 falling into administration on 21 October 2014, neither team driver was able to compete at the United States Grand Prix.

He spun on the fourth lap after an unsuccessful overtaking attempt on Force India's Nico Hülkenberg which resulted in retirement.

He finished the race in the same position, scoring one point after Max Verstappen's engine failed with only a few laps remaining.

[41][43] In Spain he finished twelfth, but in Monaco he was deemed to be at fault for a collision with his teammate, resulting in a grid penalty for Canada that made him start from the back.

[41][44][45] The following races saw him finishing 17th in Baku and 15th in Austria, with qualifying crashes in Silverstone and Hungary forcing him to start from the pit lane.

[41][48][49][50] In Austin, he ran 11th for part of the race but dropped to 14th by the checkered flag, and in Mexico he recovered from a first lap crash to finish eleventh, just outside of the points.

[53] Sauber started to struggle in Monaco with Ericsson crashing into the barrier while overtaking the safety car to get on the lead lap.

[60] At the Italian Grand Prix, Ericsson had a high speed accident in second practice, when his DRS system failed, causing the car to lose control into turn 1 and slam the wall.

[61] Just before the 2018 Russian Grand Prix it was announced that Ericsson was to be replaced at Sauber by Antonio Giovinazzi, but would remain with the team as their third driver and brand ambassador.

[69] Ericsson, sporting a helmet painted in honor of his countryman and Formula One legend, Ronnie Peterson, won the 2022 Indianapolis 500 under caution after holding off Pato O'Ward on a late restart.

[72] Ericsson's win in the 500 plus solid early season results vaulted him into the points lead of the IndyCar Series championship for the first time in his career.

[73] His title challenge continued with a six-race streak of successive top ten finishes, however a second place at Road America ended up being the final podium of his campaign.