WASHINGTON — It served as about an unglamorous a setting as you’ll ever see for such a glorious milestone. But after Randy Johnson joined the 300-win club on Thursday night, prevailing in the Giants’ 5-1 victory over the Nationals at a rainy, largely empty Nationals Park, the lanky lefthander showed his soft side. It may not have been a perfect final step to this goal, but it has been a remarkable journey.

“It sounds funny, but I played 21, 22 years, I’m 45 and came up on 300 wins, (and) I’m thinking about I only have 211 more to catch Cy Young,” Johnson said, smiling.

Johnson was hardly The Big Unit; now 45, he struck out only two batters in six innings. He left the game after only 78 pitches; his left shoulder came up sore when he fell on it while making an off-balance throw to first on Anderson Hernandez’s sixth-inning comebacker.

That said, Johnson pitched with impressive efficiency, taking a no-hitter into the fifth inning.

Johnson departed with a 2-1 lead — the run he allowed was unearned — and his bullpen teammates threw three scoreless innings to secure the milestone.

— From wire reports