The world No. 1 arrives in Indian Wells following a remarkable campaign in which she captured the Australian Open and US Open titles, securing the year-end top ranking in the process.
She is widely expected to reach the knockout stages, having also avoided defeat against all three of her group rivals during the 2026 season.
However, the competition promises to be fierce, with Group 1 featuring three Grand Slam winners from this year. Gauff, the 2024 WTA Finals champion, brings previous success at the tournament, while Pegula reached the championship match in 2023 before losing to Iga Swiatek.
Both Americans could also benefit from familiar conditions and strong home support in California.
Noskova, meanwhile, makes her tournament debut after claiming Wimbledon and Berlin titles this season. Although she enters as the perceived underdog, her powerful serve and ability to perform under pressure make her a dangerous opponent.
Rybakina opens her campaign against Noskova on Sunday, November 8, with the semifinals scheduled for November 14. Only the top two players from the group will progress.
The defending champion is also chasing a piece of history, aiming to become the first woman since Serena Williams to win consecutive WTA Finals titles.
Williams achieved the feat three times between 2012 and 2014, but Rybakina's physical condition and the demanding round-robin format could complicate her ambitions.