For the third straight year, all four members of Undisputed Era were in the WarGames match. (Including Roderick Strong, who wasn't part of UE yet during the first WarGames match, but was in the match teaming with AOP.)
First women's division WarGames match.
Kevin Owens's Titantron film and his t-shirt (the duct tape design) were from when he was in NXT and in his first year on the main roster.
The time lapse between the countdown timer hitting zero and Kevin Owens's music starting was 20 seconds.