Caleb Thielbar

The Cubs and left-hander Caleb Thielbar have reunited on a one-year, $4.5 million deal.

Fantasy Impact

The fit in Chicago was a good one for both sides in 2025 after Thielbar posted a 2.64 ERA while matching a career-high with 67 appearances. He should lock down another important late-inning left-handed role in 2026.

Caleb Thielbar pitched a perfect inning with one strikeout in Tuesday’s win over Philadelphia.

Fantasy Impact

Thielbar continues to be quietly effective in middle relief, now sporting a 1.85 ERA and 1.03 WHIP over 24.1 innings with 22 strikeouts. While he’s not a factor in saves or wins, his consistent ratios and ability to limit damage make him a solid play in deeper formats that reward holds or bullpen efficiency.

The Cubs activated LHP Caleb Thielbar from the Paternity List.

Fantasy Impact

Thielbar was away for a few days. He will return to his middle relief role.

Caleb Thielbar threw a scoreless inning, allowing no hits and one walk while striking out one against the Padres.

Fantasy Impact

Thielbar holds a 5.40 ERA across 6.2 innings, but recent outings have been encouraging. He’s on the fringe of deeper-league value if his usage climbs or the ratios stabilize.

Caleb Thielbar tossed a perfect inning with two strikeouts to notch a save in Monday's 3-1 victory over the Mariners.

Fantasy Impact

This performance was a breath of fresh air for Thielbar, whose season has been marred by a bloated 6.14 ERA and a 1.77 WHIP. Despite these struggles, his solid 11.0 K/9 and 3.00 strikeout-to-walk ratio hint at underlying skills that could lead to better days ahead. His ability to secure saves in tight games remains a valuable asset in fantasy leagues, especially for those in need of saves. However, his high ERA and WHIP make him a risky play, best suited for deeper leagues or as a speculative add in hopes of a turnaround.