The addition of the Automated Ball-Strike (ABS) challenge system has been a major storyline for the 2026 MLB season. Reviews have been largely positive, but it has been a significant adjustment for teams as they learn to best utilize the new rules.A little over a third of the way through the regular season, let’s check in on how the Giants and Athletics are faring with their ABS challenges compared to other organizations.On one hand, the Giants haven’t been particularly effective contesting balls and strikes. Their 47.9 percent success rate ranks 25th of 30 teams entering Saturday, June 6; the MLB average is about 53 percent. Breaking it up by situation, San Francisco is right in the middle of the pack in successful challenges by batters at 46.8 percent (14th, league average is 46.7 percent). But with the Giants as the fielding team — when overturn rates typically are much higher — they fall to 25th in MLB at 48.4 percent (average is 58.1 percent).Patrick Bailey has been one of the better catchers at ABS challenges with a 60 percent success rate, but he’s now in Cleveland after being traded to the Guardians last month....