Title: Elimination Chamber (2018)
Content:  The 2018 Elimination Chamber (known as No Escape in Germany) was the eighth Elimination Chamber professional wrestling event produced by WWE. It was held exclusively for wrestlers from the promotion's Raw brand division. The event aired on pay-per-view (PPV) and the WWE Network and took place on February 25, 2018, at the T-Mobile Arena in the Las Vegas suburb of Paradise, Nevada. It was the final Raw-exclusive pay-per-view under the second brand split as following WrestleMania 34 in April, WWE discontinued brand-exclusive PPVs. The 2018 event was also the first to feature a seven-man Elimination Chamber match, the first event to include a women's Elimination Chamber match, and the first Raw-exclusive pay-per-view since the 2016 reintroduction of the brand extension to not feature any cruiserweight division 
Title: Elimination Chamber (2018)
Content:  Six matches were contested at the event, including one on the Kickoff pre-show. In the main event, Roman Reigns won the first-ever seven-man Elimination Chamber match to become the number one contender against Brock Lesnar for the Universal Championship at WrestleMania 34. On the undercard, Alexa Bliss retained the Raw Women's Championship in the first-ever women's Elimination Chamber match, and Asuka defeated Nia Jax to extend her undefeated streak and to prevent Jax from being added to her WrestleMania 34 championship match. The event was also notable for Ronda Rousey signing her Raw contract, where she had a confrontation with Chief Operating Officer Triple H and Raw Commissioner Stephanie McMahon, which was the former's first appearance since the night after Survivor Series in November 2017.
Title: Elimination Chamber (2018)
Content:  Elimination Chamber is a gimmick pay-per-view (PPV) and WWE Network event first produced by WWE in 2010. It has been held every year since, except in 2016, generally in February. The concept of the show is that one or two main event matches are contested inside the Elimination Chamber, either with championships or future opportunities at championships at stake. While the 2017 event was a SmackDown-exclusive show, the 2018 event was held exclusively for the Raw brand. The 2018 event was the eighth event under the Elimination Chamber chronology and took place on February 25, 2018, at the T-Mobile Arena in the Las Vegas suburb of Paradise, Nevada. In 2011 and since 2013, the show has been promoted as "No Escape" in Germany as it was feared that the name "Elimination Chamber" may remind people of the gas chambers used during the Holocaust.
Title: Elimination Chamber (2018)
Content:  his free agent status to go to SmackDown Live the following night to earn a match at WrestleMania. On SmackDown, Cena was given the opportunity to be added to the WWE Championship match at SmackDown's pay-per-view Fastlane if he could defeat WWE Champion AJ Styles in a non-title match. Cena defeated Styles, making the WWE Championship match at Fastlane a Six-Pack Challenge (the other participants were Baron Corbin, Kevin Owens, Dolph Ziggler, and Sami Zayn). The 2018 Elimination Chamber would be the final Elimination Chamber event to be brand-exclusive, and subsequently the final Raw-exclusive PPV of the second brand split, as following WrestleMania 34 in April, WWE discontinued brand-exclusive pay-per-views.
Title: Elimination Chamber (2018)
Content:  and free agent John Cena defeated Finn Bálor to qualify. The following week, Elias defeated Cena and Strowman in a triple threat match to determine who would enter the chamber last. That same episode, Roman Reigns and Intercontinental Champion The Miz qualified by defeating Wyatt and Apollo Crews (whose ringname was later shortened to Apollo), respectively. On the next episode, Cena defeated The Miz in a match where the loser would be one of the starting participants in their chamber match. Later, the final qualification match took place in what was originally a second chance fatal four-way match between Bálor, Wyatt, Hardy, and Apollo. However, Angle added 
Title: Elimination Chamber (2018)
Content:  The main event was the first-ever seven-man Elimination Chamber match with the victor becoming the number one contender against Brock Lesnar for the Universal Championship at WrestleMania 34. Due to the extra participant, three men began the match instead of two, which were The Miz, Seth Rollins, and Finn Bálor. John Cena entered the match as the fourth entrant, followed by Roman Reigns and Braun Strowman. Strowman performed a running powerslam on The Miz to eliminate him. The last man to enter the match was Elias. Cena performed AA and Reigns performed a Spear on Strowman able kickout. Strowman then eliminated Elias, Cena, Bálor, and Rollins by performing a running powerslam on each of them. The final two were Strowman and Reigns. In the climax, Reigns performed three superman punches and two spears on Strowman to win the match and earn the right to challenge Brock Lesnar for the Universal Championship at WrestleMania 34. After the match, Strowman attacked Reigns with two running powerslams and tackled Reigns through a pod.
Title: Elimination Chamber (2017)
Content:  The 2017 Elimination Chamber (known as No Escape in Germany) was the seventh Elimination Chamber professional wrestling event produced by WWE. It was held exclusively for wrestlers from the promotion's SmackDown brand division. The event aired on pay-per-view (PPV) and the WWE Network and took place on February 12, 2017, at the Talking Stick Resort Arena in Phoenix, Arizona. It was the first Elimination Chamber event to be held since the 2015 event and was WWE's first pay-per-view to feature three women's matches on the main card. Eight matches were contested at the event, including one on the Kickoff pre-show. In the main event, Bray Wyatt won the titular Elimination Chamber match to win the WWE Championship, the first singles championship of his career. On the undercard, Naomi defeated Alexa Bliss to win the SmackDown Women's Championship, marking her first championship in WWE, Randy Orton defeated Luke Harper, American Alpha (Chad Gable and Jason Jordan) retained the SmackDown Tag Team Championship in a tag team turmoil match, and Becky Lynch defeated Mickie James.
Title: Elimination Chamber (2017)
Content:  In the main event, the WWE Championship was defended in the Elimination Chamber match. Defending champion John Cena and AJ Styles were the first two contestants. Intercontinental Champion Dean Ambrose entered next, followed by Bray Wyatt and Baron Corbin. As Miz was due to enter the chamber, he remained in his pod. Ambrose rolled-up a distracted Corbin to eliminate him. Corbin attacked Ambrose, threw him through a pod and performed the End of Days on Ambrose before leaving the chamber. Miz then quickly eliminated Ambrose. Cena eliminated Miz after an Attitude Adjustment. Styles and Wyatt attacked Cena before Wyatt attacked Styles. Styles and Cena both scored nearfalls against each other, after a Styles Clash and an Attitude Adjustment respectively. Wyatt then executed Sister Abigail on Cena, eliminating him. As Styles attempted the Phenomenal Forearm, Wyatt caught Styles and executed Sister Abigail to win his first WWE Championship. Randy Orton emerged and the two had a brief staredown before Wyatt celebrated his victory in the ring.
Title: WWE Elimination Chamber
Content:  From 2010 to 2012, the event featured two Elimination Chamber matches, usually one for each brand until August 2011 when the brand extension ended. In 2010, Raw's Chamber match was for the WWE Championship while SmackDown's Chamber match was for the World Heavyweight Championship. In 2011, the Raw Chamber match determined the number one contender for the WWE Championship at WrestleMania XXVII, while the SmackDown Chamber match was again for the World Heavyweight Championship. In 2012, although the brand extension had ended, there were still two Chamber matches with one each for the WWE Championship and World Heavyweight Championship, respectively. In 2013, only one Chamber match took 
Title: Elimination Chamber (2011)
Content:  The main event was an Elimination Chamber match for a WWE Championship match at Wrestlemania XXVII between CM Punk, Randy Orton, King Sheamus, John Morrison, John Cena and R-Truth. Sheamus and Morrison started the match while the other four men were locked inside pods. Orton entered at #3 and Punk entered at #4 but Punk's pod would not open, allowing Orton to attack Punk. Punk was eliminated by Orton after an RKO but the Anonymous Raw General Manager announced that Punk would re-enter the match. Cena entered at #4 and R-Truth entered at #5. R-Truth was eliminated by Sheamus after a Brogue Kick. Punk entered at #6 and eliminated Orton after a GTS. Sheamus was eliminated by Morrison after a Crossbody from the top of the chamber. Morrison was eliminated by Punk after a GTS. Cena eliminated Punk after an Attitude Adjustment onto the chamber floor to win a WWE Championship match at Wrestlemania XXVII.

Question: who won the wwe championship elimination chamber 2018?
Answer: Roman Reigns.