Pella won their only previous meeting. That was at the French Open in May this year. pella won easily in straight sets on clay.
They have quite similar overall results this year.
Ramanathan has the edge on hard courts. He made the final of a Challenger 3 weeks ago. He has won 57% of his hard court matches this season. He has come through the qualifying round this week beating Matosevic in 2 sets.
Pella had a good week in Miami in March reaching the 3rd round. That was his only hard court success this year. He won 42% of his hard court matches this year although to be fair he had some tough opponents such as Nadal and Bautista Agut.
Some value on Ramanathan to win at least a set and he has a good chance of taking the match.
Lay Pella below 1.50