Wirts is also playing in the 65-and-over singles, and has a 9 a.m. Sunday match scheduled against John White.
Markham, 72, and Robinson, 70, have more local roots - Markham played basketball and baseball at Charleston High and West Virginia Tech, graduating in 1959 and 1963, respectively. Robinson is a 1961 graduate of Dunbar High.
Robinson said he has won three Public Courts titles in the various divisions, but Markham is loaded with titles. And yes, they came later in his competitive tennis career.
"I wasn't that good until I got about 50; all of them beat me like a drum," he said. "Then they got some ailments and I came on the last 15 years. Thirteen years, I've won something."
There's something about winning the battle of attrition. All four of the players are in tremendous shape for their age, though they report a few aches.
For Robinson, it's the shoulder. Markham has had two Achilles tendons repaired and has a creaky knee, and Wirts had a rotator cuff repaired two years ago. "Things aren't perfect, but they're all original equipment," Wirts joked.
They've all played through the pain, and this week they are serving as the Public Courts' elder statesmen.
"That's why we're here. It's fun, exercise, enjoyable," Robinson said.
Reach Doug Smock at 304-348-5130, dougsm...@wvgazette.com or follow him at twitter.com/dougsmock.