Willson Contreras is slugging his way onto rosters at a pace that hasn't caught up with his bat — a .504 wOBA over the last seven days against just 21.6% ownership — and he's the headliner of 15 rising signals we're tracking this Friday morning.

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Willson Contreras (1B, BOS) — 21.6% Owned

The numbers are screaming. Contreras posted a .504 wOBA over the past week, a massive jump from his .328 mark over 30 days, backed by a 92.9 mph average exit velocity and a 161 wRC+. He's hitting .350 with 2 homers across 27 plate appearances in the last seven days — this is a solid, five-game sample, not a one-game mirage. His strikeout rate dipped to 22.2% from 23.1% while his walk rate ballooned to 22.2% from 16.9%, showing a hitter with elite plate discipline right now. At barely over one-fifth rostered, the window is wide open. He's a 1B-eligible bat producing like a top-30 hitter. Add him before the weekend.

Taj Bradley (P, MIN) — 48.3% Owned

Bradley is missing bats at an absurd rate — a 37.0% strikeout rate over the last seven days, up from an already-strong 30.6% over 30 days. He posted a 1.43 ERA with 14.29 K/9 and carried a -0.07 FIP in his recent work across 6.3 innings. Yes, that FIP is essentially zero. The ownership is higher here at 48.3%, meaning he's already disappearing in competitive leagues. If he's somehow still sitting on your wire, this is the last call. The strikeout surge is backed by an early but real four-game signal.

Watch List

Max Muncy (3B, ATH) — 18% Owned

Muncy's strikeout rate cratered from 32.7% to 24.0% in a week while his wOBA surged to .488 from .403. He's hitting .440 with a 93.6 mph exit velocity and 67.8% hard-hit rate across five games. If the K-rate stays below 25% for another week, he's a priority add.

Tyler Phillips (P, MIA) — 0.1% Owned

A 0.00 ERA with a 2.50 FIP and 28.6% K-rate across 6.7 innings — and 0.1% owned. Phillips is the definition of a deep-league stash. The workload says rotation role. Monitor one more start before committing.

Ryan Mountcastle (1B, BAL) — 0.7% Owned

The contact quality is intriguing: 94.2 mph exit velocity, 55.6% hard-hit rate, and a strikeout rate that plummeted from 31.6% to 12.5% in seven days. The wOBA rose to .306 from .222, and the walk rate jumped from 5.3% to 12.5%. No power yet (.286 AVG, 0 HR), but the batted-ball data suggests it's coming.

Tyler Stephenson (C, CIN) — 2% Owned

Two homers in a week from a catcher rostered in just 2% of leagues. The 97.3 mph exit velocity is elite, the hard-hit rate sits at 62.5%, and the wOBA climbed to .376. Catcher is a wasteland — Stephenson's power-and-patience profile (10.5% walk rate, up from 7.0%) deserves attention.

Edouard Julien (2B, COL) — 0.3% Owned

Julien slashed his strikeout rate nearly in half — from 29.3% to 15.8% — and is hitting .412 with a .397 wOBA. The 92.2 mph exit velocity and 46.7% hard-hit rate are modest, but the Coors home games add intrigue. The plate discipline improvement is the real story here.

Tyler Holton (P, DET) — 1.4% Owned

Holton's K-rate is climbing (23.5% vs. 18.8% over 30 days) with a 2.04 FIP and a 0.00 ERA over the past week. He's a reliever who could provide sneaky ratios in leagues that reward holds or low-ERA arms.

Lane Thomas (CF, KC) — 0.3% Owned

A 77.8% hard-hit rate and 95.5 mph exit velocity jump off the page. Thomas's wOBA surged from .204 to .375, his K-rate dropped from 25.7% to 15.4%, and his walk rate hit an absurd 30.8%. The batting average is only .222, but the underlying quality of contact is outstanding. Worth a speculative add in deeper formats.

Miguel Andujar (LF, SD) — 1.4% Owned

Andujar is hitting .389 with a .449 wOBA across 20 plate appearances. He's getting consistent playing time and the strikeout rate is manageable at 20.0%. The exit velocity (91.3 mph) isn't elite, but the results are there. Keep watching.

Josh Bell (1B, MIN) — 10.2% Owned

A 207 wRC+ in the past seven days with a .455 wOBA and .391 batting average. Bell's K-rate ticked down to 23.1% and he's logged 26 plate appearances across a solid five-game window. The 87.6 mph exit velocity is a concern — this might be BABIP-driven. Watch the hard contact before jumping.

Robert Suarez (P, ATL) — 44.9% Owned

A 50.0% strikeout rate with a 0.77 FIP and 15 K/9 over the last week. Suarez is dominating, and at 44.9% ownership, he's available in plenty of leagues. If he's locked into the closer role, he's a must-roster arm.

CJ Kayfus (1B, CLE) — 0.3% Owned

Kayfus is hitting .333 with a homer and a .417 wOBA, pairing a 94.6 mph exit velocity with a declining K-rate (16.7%, down from 25.0%). Ultra-deep league stash at 0.3% owned.

Seranthony Domínguez (P, CWS) — 10.4% Owned

A 35.7% K-rate with a 1.89 FIP and 0.00 ERA in recent outings. Domínguez has swing-and-miss stuff working right now — 13.64 K/9. He's worth grabbing in any league that values ratios or saves potential.

Carter Jensen (C, KC) — 17.1% Owned

The rookie catcher ripped 2 homers with a .466 wOBA and 94.7 mph exit velocity over five games. His K-rate is still elevated at 27.8% but trending down from 32.6%. At 17.1% owned, he's the catcher prospect to grab if you need upside at the thinnest position in fantasy.

Stream of the Day

No streaming-specific signals triggered today. With Tyler Phillips sitting at 0.1% owned and carrying a 0.00 ERA, 2.50 FIP, and 10.75 K/9 across 6.7 innings, he's the closest thing to a streaming play on the board — but the sample is too thin to call it a confident one-week stream. Check back tomorrow for matchup-driven recommendations.

Ownership Movers

Ownership change data is unavailable across the board today, so we're looking at current levels and whether they match the underlying signal strength.

  • Willson Contreras at 21.6% is a clear market inefficiency. A .504 wOBA and 161 wRC+ should put him above 50% by next week.
  • Taj Bradley at 48.3% is the most owned player on today's report, and the data says he should be rostered universally. A -0.07 FIP is not a number you leave on waivers.
  • Max Muncy at 18% still reflects his rough 30-day profile (32.7% K-rate), but the seven-day correction is dramatic enough to warrant preemptive adds.
  • Tyler Phillips at 0.1% is essentially invisible. If this pitching line holds through one more start, ownership will spike.
  • Ryan Mountcastle at 0.7% reflects a player the market has given up on. The 94.2 mph EV and K-rate collapse say maybe not yet.

Quick Hits

  • Lane Thomas logged a 77.8% hard-hit rate and 95.5 mph exit velocity this week — the best batted-ball profile among all hitters on today's report — while being rostered in just 0.3% of leagues.
  • Tyler Stephenson's 97.3 mph average exit velocity is the highest among all position players flagged today. For a catcher, that's rare territory.
  • Robert Suarez struck out exactly half the batters he faced in the last seven days. His 0.77 FIP is the lowest among relievers in today's signals.
  • Edouard Julien cut his strikeout rate by 13.5 percentage points week-over-week (29.3% → 15.8%) — the largest K-rate improvement on the board.
  • Carter Jensen and Tyler Stephenson each hit 2 homers in the last seven days. If you're streaming catchers, these are the two names to monitor this weekend.