Jack Leiter's strong six-inning performance against the Mariners, where he struck out seven and didn't issue any walks, showcases his potential as a key starter for the Rangers. However, the challenge remains for him to find consistency.

Jack Leiter's performance against the Pirates highlighted his struggles with finishing plate appearances in two-strike counts, leading to a higher on-base percentage allowed than league average.

Jack Leiter struggled against the Royals, yielding six runs and three home runs, primarily due to his over-reliance on the fastball, which he threw nearly 40% of the time.

Jack Leiter is set to pitch for the Rangers, holding a 3.88 ERA. His recent performances will be crucial as he aims to continue the team's winning momentum against the Royals.

Jack Leiter, a promising young pitcher for the Texas Rangers, is set for two starts this week against lackluster offenses in Kansas City and Pittsburgh. Despite his unsustainable ERA, he offers a high potential for fantasy points in these matchups.