Vaughn Grissom Is Heating Up at the Right Time — and Nobody's Paying Attention

Vaughn Grissom just posted a .468 wOBA over the last seven days with a strikeout rate that's been cut in half, and he's rostered in just 3% of leagues. If you're chasing upside in the final week of the fantasy season, this is a name to monitor closely.

The Signal: A Real Shift in Approach

The numbers over the last week are legitimately encouraging. Grissom slashed .350 AVG with 2 home runs across 24 plate appearances, driving his 7-day wOBA to .468 — a massive jump from his .338 mark over 30 days. But the stat that matters most here isn't the batting average. It's the strikeout rate: 8.3% over the last seven days, down from 18.2% over 30 days. That's not a small fluctuation. That's a fundamentally different approach at the plate.

His walk rate has ticked up to 8.3% in that same 7-day window, up from 6.4% over 30 days. More walks, fewer strikeouts, more hard contact. That's the profile of a hitter making better swing decisions, not just getting lucky on balls in play.

Rolling Window Breakdown

Here's where the trend becomes clear:

  • 7-day: .350 AVG, .468 wOBA, 8.3% K%, 8.3% BB%, 43.1% HardHit%, 87.7 mph EV
  • 14-day: .244 AVG, .349 wOBA, 18% K%, 8% BB%, 28.5% HardHit%, 86.7 mph EV
  • 30-day: .242 AVG, .338 wOBA, 18.2% K%, 6.4% BB%, 33.2% HardHit%, 86.3 mph EV

The 30-day line tells you Grissom has been a roughly league-average bat with 6 home runs over 110 plate appearances — useful but unexciting. The 7-day line tells you something changed. His hard-hit rate jumped to 43.1% from 33.2% over 30 days. His exit velocity climbed to 87.7 mph. He went 2-for-4 with a homer on September 23rd and 3-for-4 with 2 RBI the day before. This is a hitter locked in.

WaiverScout Has Been Tracking This

This isn't the first time our algorithm has flagged Grissom. We had him as a Watch back on July 12 at just 1% rostered, and issued an "Add Now" signal on July 31 when he was at 6%. The signal faded through August as his performance dipped — we reclassified him to Deprioritize multiple times — but we kept watching. As recently as September 16, he was a Deprioritize. One week later, the data has flipped. The data is clear: Grissom runs hot and cold, but when he's on, the upside is real, and this current stretch has the underlying skills to back it up.

Ownership Window

At 3% rostered with stable ownership velocity, this player isn't on anyone's radar yet. No major fantasy publications are writing about him right now. That's your window. Multi-position eligibility at 1B, 2B, and 3B adds significant roster flexibility, especially in deeper formats where you're plugging lineup holes down the stretch.

If you need a comparable option, Sal Stewart and Royce Lewis occupy similar positional space but come with different risk profiles and higher ownership costs.

The Verdict: Watch

Grissom is a Watch, not an Add — yet. The 7-day spike is convincing, and the 50 PA sample over five games gives us enough to say this isn't noise. But his history of hot-and-cold streaks demands patience. The numbers back it up right now: elite wOBA, plummeting strikeouts, improving hard contact. If this carries into another week with similar plate discipline numbers, he becomes an add in all formats. For now, get him on your watch list, keep an eye on that strikeout rate, and be ready to move before the 97% of managers who aren't paying attention.