A spot in the next round is at stake on Thursday, when Elena Rybakina goes up against Yulia Putintseva in the Tokyo round of 16. Elena Rybakina has won 3 in a row and 9 of the last 10 overall. Yulia Putintseva is 4-6 across recent matches.
Rybakina's 70% behind the first serve (against 60% for Putintseva) means break chances should be scarce in one direction. Anything other than a Rybakina win would rank among the bigger surprises of the week.