Nick Kurtz's 32-Game On-Base Streak Is the Most Valuable Prop You're Not Betting

Nick Kurtz is doing something almost no one is talking about. As MLB.com reported, the 23-year-old A's first baseman ripped a two-run triple among two hits Friday night in Oakland's 4-3 win over Baltimore, extending what is now MLB's longest active on-base streak to 32 games. That ties Mark Ellis's 2007 mark for second-longest single-season streak in franchise history since 2000, with Nick Swisher's 2006 run of 36 games the only A's benchmark still ahead of him.

The narrative around Kurtz this season has been almost entirely about his power regression — five home runs through 37 games after clubbing 36 in his Rookie of the Year campaign in 2025. That framing misses the bigger picture entirely. Kurtz is posting a .413 on-base percentage, a figure that reflects genuine plate discipline evolution, not noise. He's attacking strikes and laying off borderline pitches with the kind of precision that young hitters rarely demonstrate in a sophomore season. Manager Mark Kotsay put it plainly: "He continues to improve in ways that young hitters don't normally have that much progress." When your manager is talking about process over results, and the results are still a .413 OBP, that's a buy signal.

Friday's triple came off Kyle Bradish's hanging 1-0 slider in a two-runners-in-scoring-position situation in the fifth inning — Kurtz recognized a fastball-heavy approach from prior at-bats and stayed disciplined enough to pull the slider down the right-field line. That's not a lucky hit. That's a hitter making real-time adjustments within a game. Bradish struck out 10 and allowed only seven baserunners total across seven frames, making Kurtz's two-hit, two-RBI performance against one of Baltimore's better starters all the more notable.

For prop bettors, the angle here isn't the homer prop — Kurtz's power numbers are depressed and projecting forward to roughly 20 home runs at his current pace suggests the HR market has already adjusted. The value is in the hits and on-base adjacent props. Kurtz is averaging better than one hit per game during this streak and consistently working deep counts that produce walks when hits don't fall. The altprophits market — specifically the "1+ hits" line — has been a steady edge play on nights when Kurtz faces a starter in the middle of the rotation or below. His .413 OBP means he's reaching base in nearly every game regardless of whether the barrel is working. The altpropruns angle is also worth tracking: Kurtz bats in a lineup spot where the A's have consistently manufactured enough offense to score him when he reaches, as evidenced by Oakland's eight one-run wins this season.

The streak still has room to run — four more games and Kurtz breaks the franchise's post-2000 single-season record outright. With Baltimore's bullpen likely stretched after Bradish's 91-pitch outing, the remaining games of this series offer softer matchups. Backing Kurtz to record at least one hit in Saturday's contest is the cleanest near-term play, and the underlying numbers support it well beyond one game.