Zack Gelof Is Surging Again — And WaiverScout Called It First

Zack Gelof just posted a .442 wOBA over the last seven days, backed by a 52.8% hard-hit rate and three home runs. At 25% rostered, three-quarters of fantasy leagues are still sleeping on a player WaiverScout has been flagging since late April. The data is clear: this is an Add Now.

The Rolling Window Tells the Story

Gelof's recent surge isn't a blip — it's an acceleration of a trend that's been building across every rolling window:

  • 7-day: .308 AVG, 3 HR, 1 SB, .442 wOBA, 52.8% HardHit%, 89 mph EV across 26 PA
  • 14-day: .319 AVG, 3 HR, 1 SB, .401 wOBA, 32.1% HardHit%, 84.7 mph EV across 50 PA
  • 30-day: .272 AVG, 4 HR, 5 SB, .329 wOBA, 42.3% HardHit%, 87.4 mph EV across 110 PA

The wOBA jump from .329 over 30 days to .442 over the last week is massive. That 30-day line was already playable in most formats — a .272 average with power-speed upside (4 HR, 5 SB) is useful. But what he's doing now is something different entirely. The bat is coming alive with authority.

The Quality of Contact Is Real

The most encouraging data point from the last seven days is the 52.8% hard-hit rate paired with an 89 mph average exit velocity. That's a significant spike from his 14-day hard-hit rate of 32.1% and EV of 84.7 mph. Even the 30-day hard-hit rate of 42.3% with an 87.4 mph EV showed signs of solid underlying contact quality. The latest window confirms Gelof is driving the ball with more force, not just getting lucky on placement.

The strikeout rate does warrant monitoring — 30.8% over the last seven days and 30% over 14 days. He's not walking much either, with a 0% BB rate in the last week. But when a hitter is squaring up the ball at this rate, the contact he is making carries serious damage potential. Three homers in five games isn't empty noise when more than half his batted balls are hit hard.

WaiverScout Was Early — Again

We first flagged Gelof as a watch back on April 29 when his roster percentage was essentially zero. By May 8, the signal had strengthened enough for an Add Now classification at just 5% rostered. We reiterated that call on May 19 at 17% ownership. Now at 25% and climbing — with a +5% jump in the last week alone — the window is narrowing fast.

The broader fantasy community is catching on. The Athletic highlighted Gelof as a waiver target in mid-May, and RotoBaller flagged his power-speed upside heading into late May. WaiverScout had the signal weeks before either publication. Ownership velocity is rising fast, and the performance justifies the trend.

The Opportunity Is Locked In

Gelof logged 26 plate appearances over the last seven days, confirming consistent playing time. With multi-position eligibility at 2B, 3B, and OF, he offers the kind of roster flexibility that amplifies his statistical value. You're not just adding a hot bat — you're adding a hot bat you can slot into multiple lineup spots.

Verdict: Add Now

Zack Gelof is an immediate add in all competitive leagues. A .442 wOBA and 52.8% hard-hit rate over 26 PA this week, layered on top of a 30-day line that already showed 4 HR and 5 SB across 110 PA, makes the case undeniable. He's 25% rostered. He won't stay there. This is the last call before the broader market prices in what the numbers already show. Move now.