Title: Royal Rumble (2018)
Content:  two Royal Rumble matches were contested on the card with the winners of each receiving a choice of which championship to challenge for at WrestleMania 34. The men could choose to challenge for either Raw's Universal Championship or SmackDown's WWE Championship, while the women had the choice between the Raw Women's Championship and the SmackDown Women's Championship. In total, nine matches were contested at the event, including three on the Kickoff pre-show. In the main event, Raw's Asuka won the first-ever women's Royal Rumble match by last eliminating SmackDown's Nikki Bella. This was also the second women's match to main 
Title: Royal Rumble (2011)
Content:  Rumble match, which featured 40 participants from both brands instead of the usual number of 30—it has thus far been the only Royal Rumble match to have 40 participants. It was won by SmackDown's Alberto Del Rio, who last eliminated Raw's Santino Marella. The primary match on the Raw brand was for the WWE Championship, between reigning champion The Miz and Randy Orton, which Miz won to retain the title. The primary match on the SmackDown brand was Edge versus Dolph Ziggler for the World Heavyweight Championship, which Edge won to retain the title. The other featured match on the card was a fatal-four way match for the WWE Divas Championship in which Natalya defended the title against Eve Torres, Layla, and Michelle McCool; Torres won to win the championship.
Title: Royal Rumble (2019)
Content:  and the SmackDown Women's Championship. In total, ten matches were contested at the event, including three on the Kickoff pre-show. In the main event, Raw's Seth Rollins won the men's Royal Rumble match by last eliminating Braun Strowman, also from Raw, while SmackDown's Becky Lynch won the women's Royal Rumble match by lastly eliminating Charlotte Flair, also from SmackDown. In the opening bout, Lynch lost her SmackDown Women's Championship match against Asuka. Other prominent matches included Brock Lesnar retaining the Universal Championship against Finn Bálor, Daniel Bryan defeating AJ Styles to retain the WWE Championship, and Ronda Rousey defeating Sasha Banks to retain the Raw Women's Championship. The event also featured the return of Jeff Jarrett, who competed in his first WWE match since No Mercy in October 1999.
Title: Royal Rumble (2018)
Content:  matches. The Royal Rumble match generally features 30 wrestlers and the winner traditionally earns a world championship match at that year's WrestleMania. It was originally only contested by male wrestlers. However, for 2018, Raw Commissioner Stephanie McMahon scheduled the first-ever women's Royal Rumble match to be held at the 2018 Royal Rumble, which consequently made the 2018 event the first to include two Rumble matches, which is now standard. As a result, the winners of each match received a choice of which championship to challenge for at WrestleMania 34. The men could choose to challenge for either Raw's Universal Championship or SmackDown's WWE Championship, while the women had the choice between the Raw Women's Championship and the SmackDown Women's Championship.
Title: Royal Rumble (2018)
Content:  The main event was the first-ever 30-woman Royal Rumble match for a women's championship match at WrestleMania 34. Sasha Banks and Becky Lynch were the first and second entrants, respectively. There were numerous surprise entrants throughout the match - including Hall of Famers Lita, Jacqueline, Beth Phoenix, and Trish Stratus; NXT wrestlers Kairi Sane and NXT Women's Champion Ember Moon; and past stars Torrie Wilson, Molly Holly, Michelle McCool (who scored the most eliminations at 5), Vickie Guerrero, and Kelly Kelly. SmackDown's Nikki Bella, who had been on hiatus since WrestleMania 33, and Brie Bella were also unannounced entrants. Banks, Asuka (#25), Nikki, and Brie were the final four. Banks, Nikki, and Brie attacked Asuka, after which, Nikki and Brie eliminated Banks (who lasted the longest at nearly 55 minutes). Asuka attacked Nikki 
Title: Royal Rumble (2018)
Content:  Raw, with a larger roster of women on the main rosters, Raw Commissioner Stephanie McMahon scheduled the first-ever women's Royal Rumble match for the 2018 Royal Rumble, with the winner receiving a match at WrestleMania 34 for the top championship of their choice: Raw's Women's Championship or SmackDown's Women's Championship. Both brands' respective commissioners and general managers agreed that the women's match would have all of the same rules as the men's match, including having 30 participants. Stephanie was announced to join the commentary team for the women's match, and television host Maria Menounos was announced to be the special guest ring announcer. At 
Title: Royal Rumble (2019)
Content:  giving Rousey her first pinfall victory in the WWE and thus retaining the title. The fourth match was the 30-woman Royal Rumble match for a women's championship match at WrestleMania 35. Lacey Evans, making her main roster debut, and Natalya began the match. NXT’s Xia Li, Kairi Sane, Candice LeRae, Kacy Catanzaro and Io Shirai and NXT UK’s Rhea Ripley were all surprise entrants at #11, #14, #17, #19, #23 and #24 respectively. Lana was scheduled to enter the match at number 28 but still suffered from her injury from the pre-show. Becky Lynch appeared as the 31st entrant in the match. In the end, Lynch then won the women's Royal Rumble match by last eliminating Charlotte Flair. 
Title: Royal Rumble (1999)
Content:  vs. DX mini-Rumble was set up with the winner taking the coveted number 30 spot; after all the apparent competitors had entered it seemed as if Triple H had won until Mr. McMahon made his way to the ring, entering himself on behalf of the Corporation and throwing a distracted Triple H out of the ring. Again it seemed as if the winner was established until DX's Chyna made her way to the ring and won the match. The event would mark the first time a female wrestler took part in the match. Chyna also appeared at the Royal Rumble the 
Title: Royal Rumble (2020)
Content:  the first Royal Rumble since 2010 in which there were three eligible championships for the Rumble winner to challenge for. In total, eight matches were contested at the event, including two on the Kickoff pre-show. In the main event, Raw's Drew McIntyre won the men's Royal Rumble match by last eliminating SmackDown's Roman Reigns, while Raw's Charlotte Flair won the women's Royal Rumble match by last eliminating NXT's Shayna Baszler. Other prominent matches saw "The Fiend" Bray Wyatt retain the Universal Championship against Daniel Bryan in a strap match, Roman Reigns defeated King Corbin in a Falls Count Anywhere match, and Becky Lynch defeated Asuka by submission to retain the Raw Women's Championship. The event also featured the in-ring return of Edge, who last wrestled in April 2011 before retiring from a neck injury, as well as MVP, who last wrestled for WWE in December 2010.
Title: Royal Rumble (2017)
Content:  During the Royal Rumble Kickoff pre-show, Becky Lynch, Nikki Bella, and Naomi faced SmackDown Women's Champion Alexa Bliss, Mickie James, and Natalya. Naomi performed a split-legged moonsault on Bliss to win the match. Next, Cesaro and Sheamus defended the Raw Tag Team Championship against Luke Gallows and Karl Anderson with two referees assigned to the match. Anderson pinned Cesaro with a roll-up whilst holding his tights to win the title. After that, Nia Jax faced Sasha Banks. Jax performed a pop-up Samoan drop on Banks for the win.

Question: winner of the women's royal rumble match?
Answer: Asuka.