The Diamondbacks beat the Giants 8-2 on Tuesday, and Landen Roupp’s night ended after 2.2 innings with six walks and his shortest outing of the season. It was the kind of start that turned quickly, then kept slipping away.
Ketel Marte drove in runs with a two-RBI single in the third inning after Lourdes Gurriel opened the game with a three-run home run, and the score told the rest of the story. Roupp was pulled before he could settle in, and the Giants never found a way back into a game that was already tilted early.
That is what has made this stretch so hard to explain. Roupp’s strikeout rate has held around 10 K/9, which usually gives a pitcher a way to survive a rough inning, but the other numbers have moved the wrong direction. His ERA has climbed from 2.55 to 4.55 during the losing streak, his walks per nine innings have risen from 3.6 to 4 BB/9, and opponents have started putting the ball in play far more often, with both batting average on balls in play and overall batting average jumping sharply. In plain terms, he is still missing bats, but he is also handing out too many free passes and asking every inning to work harder than it should.
Roupp’s six walks were the most he has allowed in a game, and the outing also made him the 23rd pitcher in the Majors this year to reach at least six walks in a start. The contrast with his other recent starts is sharp enough to matter: the Giants have not won a game he started since April 26, and Tuesday extended his winless run to 11 games. San Francisco has seen this before too, with Robbie Ray once walking seven White Sox batters on May 24 and the Giants still winning, but this time the control problems came with a short start and an early deficit that never loosened.
The first inning set the tone. Geraldo Perdomo worked a 3-2 curveball, Corbin Carroll struck out on a chin-level cutter, and Gabriel Moreno drew four straight pitches before Gurriel launched a 2-0 sinker after Roupp had thrown six consecutive misses. That sequence showed the problem as cleanly as the box score did: when the fastball is not finding the zone, the rest of the outing has to live on the edge. The Giants have lost to the Diamondbacks in this matchup before, and Tuesday fit that pattern again, with San Francisco spending most of the night chasing a game that had already moved out of reach.
The unanswered question now is not whether Roupp can miss bats. It is whether he can keep the ball in the strike zone long enough for those strikeouts to matter. Until that changes, the Giants are left with the same result, and the Diamondbacks keep taking the opening he gives them.
