A spot in the next round is at stake on Wednesday, when Frances Tiafoe goes up against Learner Tien in the Cincinnati round of 32. Learner Tien is 6-4 across recent matches. Frances Tiafoe comes in at 8 wins from the last ten.
Neither the serve numbers nor the ratings separate these two by much, which is why our number stays close to even. This one is close to a coin flip, and the lean toward Tien is exactly that — a lean.