═══════════════════════════════════════════════════════════ Last updated: 2026-05-19 (morning)
Below are Yahoo's top 15 daily ownership gainers — largest day-over-day jumps across all Yahoo leagues, excluding scheduled pitchers.
Verdict tiers:
- ADD — pick up off waivers (high conviction)
- STREAM — solid 12-team add for the week
- HOLD — keep rostered; not a fresh add target
- WATCH — situation in flux; wait 3–5 days
- AVOID — bad profile or saturated ownership
xwOBA vs wOBA legend:
- xwOBA > wOBA → results trailing peripherals → positive regression (buy)
- xwOBA < wOBA → results ahead of peripherals → negative regression (sell)
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J.P. Crawford — STREAM
SS · SEA · 13% owned (▲ +1.0pp)
Crawford's the textbook unlucky hitter right now. A .181 L14 average masks an elite .371 xwOBA — sitting 87 points above his actual wOBA — and his .221 BABIP is screaming for correction. The season slash (.217/.361/.377 over 169 PA) looks rough on the surface, but the .361 OBP tells the real story: elite plate discipline, just unlucky on contact. Worth noting: he's on the IL as of May 18 (day-to-day, no firm timeline), so this is a pre-return add for managers with IL flexibility.
L7: 🟢7 🟢1 🟢6 🟢6 🟢1 🟢• 🟢1
Verdict: STREAM · 70% — Statcast case is strong, role is locked. Stash if you can.
J.T. Ginn — ADD
SP · ATH · 37% owned (▲ +4.0pp)
Ginn just took a no-hitter into the 9th inning Monday night against the Angels before Adam Frazier broke it up with a leadoff single and Zach Neto walked it off with a 2-run HR for a 2-1 Athletics loss. 105 pitches, 10 K, 1 BB, 8 hitless innings — the best start of his young career. Through 10 starts: 2.98 ERA, 1.07 WHIP, 51.1 IP. The xERA (3.63) suggests some regression, but the recent form is real — 22 IP / 21 K / 1.23 ERA over his last 14 days. He's a full-time member of the Athletics rotation. The "Arizona" framing in the prior data block was wrong.
L7: ⬜ 🟢• (5/13) ⬜ ⬜ ⬜ ⬜ 🟢• (5/18, 8 IP no-hit)
Verdict: ADD · 70% — Recent stretch is loud, role is secure, sub-50% owned. The xERA gap is the only real caveat. Snap-add in any 12-team format.
Bryson Stott — STREAM
2B · PHI · 43% owned (▲ +2.0pp)
Stott's the Phillies' everyday second baseman, hitting in the bottom-middle of the order. The season slash (.216/.262/.353) looks ugly, but the underlying gap is real: .304 wOBA vs .359 xwOBA, a 55-point edge. His .242 BABIP is suppressing the AVG, and the recent 13-game stretch (.265, 3 HR, 3 SB) shows him bouncing back. Barrel rate (6.7%) is light, but the 41.2% hard-hit rate is genuinely solid. (Note: SB is the steal stat, not a position — he's 2B.)
L7: 🟢7 🟢6 🟢8 🟢6 🟢7 🟢7 🟢6
Verdict: STREAM · 65% — Locked role, BABIP rebound candidate, multi-cat profile (he's got 8 SB on the year). Add in 12T+.
Paul Goldschmidt — ADD
1B · NYY · 4% owned (▲ +1.0pp)
Goldschmidt is hitting .322 with a .914 OPS over 70 PA in pinstripes, anchored by an elite .451 xwOBA — 95 points above his actual wOBA. His 50% hard-hit rate (not "barrel rate" — that would be physically impossible; even Aaron Judge tops out around 20%) puts him in the 95th percentile. The catch: he's the Yankees' 1B against righties, and his L7 bubbles show some bench days against lefties. So he's a high-upside platoon piece, not an everyday lock — but the matchup-day production is elite.
L7: 🟢1 🔴B ⬜ 🔴B 🟢4 🟢• 🟢1
Verdict: ADD · 70% — At 4% ownership, the upside-to-cost ratio is enormous. Add as a 1B/CI piece in any 12T+ format and accept the platoon days.
Dylan Crews — WATCH
OF · WSH · 34% owned (▲ +2.0pp)
The Nationals are recalling Crews from Triple-A Rochester today (Tuesday) per Mark Zuckerman of Nats Journal — the move was planned independently of Jacob Young's HBP injury Monday, though Young's status could turn into a coincidental roster spot. Crews has been raking in May (.291/.339/.527 with 2 HR / 7 doubles in 14 games), and his exit velocities at Rochester have been elite. He's the former #2 overall pick, gets immediate everyday at-bats, and faces Nolan McLean Tuesday in his return. The "no MLB sample" framing in the data block is now stale — he plays today.
Verdict: WATCH → ADD after first game · 65% — High variance on the player but the situation is real. Wait for the activation announcement, then add in 12T+. If he starts hot in his first 2-3 games, the price won't be 34% for long.
Carson Benge — ADD
OF · NYM · 23% owned (▲ +2.0pp)
Benge is the Mets' everyday right fielder (made the Opening Day roster as MLB Pipeline's #16 overall prospect) and his L14 is loud: .351 average, 12-of-54, 11 R, 2 SB. The season slash (.245/.300/.353) is suppressed by a .250 BABIP, and the xwOBA gap (.319 vs .238 wOBA, +81 points) is one of the biggest positive-regression signals on this board. Six consecutive starts batting leadoff this week, so the role is fully locked.
L7: 🟢1 🟢1 🟢1 🟢1 🟢1 🟢1 🟢1
Verdict: ADD · 75% — Top-20 prospect, leadoff lock, xwOBA edge, hot L14. The 23% ownership badly lags the underlying case. Snap-add in 12T+.
Angel Martínez — ADD
OF · CLE · 53% owned (▲ +4.0pp)
Martínez is the AL Player of the Week (announced May 18, 2026) and is starting in the outfield for Cleveland — primarily LF/RF rotation. He's played 6 of the last 7 games. This season: .266 / 9 HR / 24 RBI / 22 R / 8 SB through 44 games, with a .350 wOBA and a 137 wRC+ early in the season. He went 7-of-19 with 4 HR last week, helping Cleveland to a 5-1 record. The breakout has been real: power up from a 1st-percentile xSLG in 2025 to 71st percentile in 2026. Some regression risk (5th percentile walk rate, 5th percentile chase rate, but xwOBA still supports the surface line).
L7: 🟢7 🟢8 🟢7 🟢7 🟢6 ⬜ 🟢7 (corrected from data block)
Verdict: ADD · 75% — AL Player of the Week, 9 HR pace, multi-position OF eligibility, .350 wOBA. The 53% ownership is climbing fast — grab him before it's universal.
Colt Emerson — STREAM
3B · SEA · 24% owned (▲ +2.0pp)
Emerson is Seattle's starting third baseman — the role belongs to him while Brendan Donovan recovers from the groin strain (related to his October sports hernia surgery). He's the #5-7 prospect in baseball, signed an 8-year/$95M extension before his MLB debut, and is being deployed at 3B in deference to J.P. Crawford at SS. The 7-PA sample is far too small for Statcast signal, so this is pure prospect-pedigree-plus-role play, not a Statcast bet.
L7: ⬜ × 5 🟢9 (debut 5/17) 🟢8 (5/18)
Verdict: STREAM · 65% — He's the everyday 3B with the $95M extension and the top-7 prospect status. The runway extends well beyond Donovan's return. Add in 12T+ formats.
Antonio Senzatela — HOLD
RP · COL · 15% owned (▲ +1.0pp)
Senzatela's pivoted into Colorado's bullpen — 28.1 IP across 13 games, 1.27 ERA, 0.81 WHIP, 3 W + 3 SV. (Note: the article's prior framing as a "SP historically" was right to flag — this role shift is meaningful.) His L14 (6.0 IP / 5 K / 1.50 ERA) maintains the elite line, and his xERA (2.83) suggests there's real skill behind the surface. He's in the setup mix, not the closer role — save opportunities will be sporadic with Seth Halvorsen still in the 9th. The 1.27 ERA will climb toward the xERA (2.83) over time.
L7: 🔴B 🟢• 🔴B 🔴B 🟢• 🔴B 🔴B
Verdict: HOLD · 50% — Keep if rostered for the elite ratios; don't chase as a fresh add unless your league credits holds heavily.
Carson Kelly — AVOID
C · CHC · 10% owned (▲ +1.0pp)
Kelly is the Cubs' primary catcher (.283/.377/.384, .761 OPS over 114 PA), but the Statcast tells a regression story: his .333 xwOBA trails his .390 actual wOBA by 56 points — exactly the wrong direction for a buy signal. The recent L14 (.266, 0 HR over 8 games) is already cooling. The 1pp ownership bump looks like noise around the everyday role.
L7: 🔴B 🟢• 🔴B 🟢7 🔴B 🟢• 🟢7
Verdict: AVOID · 30% — Catcher is a desperate position in some formats, but Kelly's underlying profile signals decline. Other one-start C2s with positive regression are better targets.
Brayan Rocchio — AVOID
SS · CLE · 38% owned (▲ +4.0pp)
Rocchio's been the Guardians' starting shortstop all year with 166 PA at .269/.348/.366. The L14 line (.291, 1 HR, 5 SB over 12 games) is real, but the underlying profile is concerning: xwOBA (.317) trails wOBA (.340) by 23 points, and his 2.9% barrel rate is in the bottom 5th percentile. The +4pp ownership bump is chasing surface results, not skill. Speed (5 SB in L14) is the one legitimate fantasy edge.
L7: 🟢9 🟢9 ⬜ 🟢9 🟢9 🟢9 🟢9
Verdict: AVOID · 30% — Reversion candidate. The SBs are real but the bat is propped up by luck.
Michael Soroka — HOLD
SP · AZ · 68% owned (▲ +1.0pp)
Soroka's been Arizona's most reliable arm: 49 IP, 3.49 ERA, 1.33 WHIP, 10.1 K/9. Recent form is loud — 17.4 IP / 19 K / 1.55 ERA over his last three starts. The catch: xERA (4.78) sits 129 points above ERA, the largest regression warning on the pitching board. At 68% owned, this isn't a fresh add target — but if you have him, keep him for the back-end-of-rotation innings.
L7: 🔴B 🔴B ⬜ 🔴B 🔴B 🟢• 🔴B
Verdict: HOLD · 55% — High ownership + large xERA gap = no fresh adds. Hold what you have; sell-high opportunity if anyone in your league overvalues the recent ERA.
Nolan Arenado — HOLD
3B · AZ · 28% owned (▲ +1.0pp)
Arenado is Arizona's everyday third baseman, .279/.351/.463 over 154 PA. The recent L14 (.196, 2 HR, 8 RBI over 13 games) is rough, but his xwOBA (.339) supports the season-long skill — the slump is variance. (Note: he went 1-for-4 with 1 HR / 4 RBI Monday — small bounce-back signal.)
L7: 🟢4 🟢4 ⬜ 🟢4 🟢4 🟢4 🟢•
Verdict: HOLD · 50% — Name-brand veteran with role security; the L14 is real but not predictive. Don't chase, don't drop.
Spencer Steer — ADD
LF/1B · CIN · 35% owned (▲ +2.0pp)
Steer is Cincinnati's everyday left fielder (he also moves to 1B and corner OF in their utility-heavy alignment). The season line (.263/.335/.447, .782 OPS) anchors a 170-PA sample, and the Statcast edge is the standout: xwOBA (.393) sits 80 points above wOBA (.294) — widest positive-regression gap on the entire board. Barrel rate (15.3%, top 25), hard-hit rate (39.5%, above-average). Multi-position eligibility (LF/1B) is a real fantasy edge in deeper formats.
L7: 🟢2 🟢5 🟢4 🟢5 🟢4 🟢4 🟢3
Verdict: ADD · 75% — Top buy-low on this board. Multi-position, daily ABs, biggest xwOBA edge. Snap-add in all formats.
Gavin Sheets — STREAM
1B · SD · 31% owned (▲ +5.0pp)
San Diego has locked Sheets into the everyday 1B role (he platoons with Luis Arraez on certain days, so check the lineup vs LHP). The season line (.240/.303/.463, .766 OPS, 6 HR) is suppressed by a .228 BABIP, and his xwOBA (.355) sits 49 points above wOBA. L14 is hot (.288, 5 HR over 12 games). Barrel rate 11.2% and hard-hit rate 45.9% — real contact quality. Today's +5.0pp jump is the largest on the board.
L7: 🟢• 🟢6 🟢5 🟢• 🟢4 🟢3 🟢•
Verdict: STREAM · 65% — Best BABIP-rebound candidate, locked everyday role vs RHP. Add in 12T+; check the lineup card on lefty days.
