The Adds Sheet — 5/27

Below are Yahoo's top ownership-percentage gainers from the past 24 hours — the names driving the biggest day-over-day roster movement in 12-team leagues.

Top conviction ADD: Curtis Mead is WSH's primary 1B with a .370 xwOBA that contradicts his .214 recent average — the peripheral signal alone justifies the add, and his low ownership (5% → 6%) means the best entry is still available.

TL;DRSkim

Yesterday's Yahoo add-rate movers, separated by action tag:

• TODAY'S ADDS — Curtis Mead (.370 xwOBA, 3B/1B, unlucky BABIP) and Dylan Lee (1.11 ERA, 134 Stuff+, setup arm) are the highest-conviction calls with elite underlying skill and locked roles.
• WATCH LIST — Spencer Horwitz (BABIP-driven .295 L14, xwOBA lag) and Ernie Clement (same story: wOBA ahead of talent) are overheating on surface metrics, and Casey Schmitt (2B slot, .891 OPS, xwOBA confirmation) is a solid hold but already trending into ownership.
• Bottom line: Mead and Lee are the only true roster adds today; Hoffman and Cowser merit streaming interest for the week ahead.

ADD Curtis Mead

1B · WSH · 5% owned (▲ +1.0pp day-over-day)

Why he's being added

Primary 3B and part-time 1B for Washington with a seemingly locked starting role and the highest xwOBA on today's board (.370). Mead is the anchor of WSH's everyday lineup — he's not filling in for anyone. Over his last 14 days, he's slashing .214 with 3 HR and 5 RBI, but that .227 BABIP tells the real story: the peripherals are elite. His .370 xwOBA (top-10 in baseball over the sample) indicates he's barreling balls at a 10.5% rate with a 45.3% hard-hit percentage — the hits will come. Statcast is screaming buy signal; the recent numbers are just noise waiting to normalize.

🟢2 05-20 🟢2 05-21 🟢3 05-22 🔴 B 05-23 🟢2 05-24 🟢3 05-25 🟢2 05-26

Watch ░░░░░░░▓▓▓ Add · 73% — elite peripheral + locked role + unlucky BABIP

Verdict: ADD. The .370 xwOBA and 10.5% barrel rate confirm Mead's talent; .227 BABIP is unsustainable. Grab him now before ownership catches up to the underlying skill.

ADD Dylan Lee

RP · ATL · 16% owned (▲ +1.0pp day-over-day)

Why he's being added

Dylan Lee is Atlanta's primary setup arm (role=setup, 8th-inning leverage) with elite-tier stuff and the 1.11 ERA to match. His 134 Stuff+ (elite range; top-15 arsenal in baseball) is backed by a 1.73 xERA and a 39.3% whiff rate — the results are earned, not lucky. Over 25 games this season, Lee has allowed just 0.62 WHIP in 24.1 IP, with 10.7 K/9 and 1.1 BB/9. This is not a BABIP-lucky profile; it's a legitimately dominant reliever being slept on. Setup arms with his peripherals consistently maintain sub-2.00 ERA rates, and ownership is still under 17% — he's available in most active leagues.

🔴 B 05-20 🟢• 05-21 🟢• 05-22 🔴 B 05-23 🔴 B 05-24 ⬜ 05-25 🟢• 05-26

Watch ░░░░░░▓▓▓▓ Add · 72% — elite Stuff+, 1.11 ERA, setup role, K/9 elite

Verdict: ADD. Lee's 134 Stuff+ and 1.73 xERA confirm his 1.11 ERA is earned, not fluky. Setup arms don't stay under 2.00 ERA for long, but while he's there and under-owned, roster him.

WATCH Jeff Hoffman

RP · TOR · 62% owned (▲ +1.0pp day-over-day)

Why he's being added

Jeff Hoffman has recorded a few saves in the last week with a lot of close action for Canada's team. The former closer is experiencing the classic ERA > xERA regression setup: his 5.09 season ERA masks a 2.72 xERA and elite 41.3% whiff rate that suggests his surface numbers are unlucky, not broken. Over 14 days, he's logged 2 saves in 4.4 IP with a 4.09 ERA, but the 8 strikeouts in that span and underlying 2.72 xERA point to a talent level well ahead of the surface. Save opportunities are potentially available in Toronto (5 on the season), and the strikeout upside — 15.7 K/9 on the year — makes him a league-winner if the ERA normalizes toward his true skill. The 62% ownership may reflect the early day closing ownership, but he's still producing effective K numbers; the xERA suggests he's about to carry you.

🟢• 05-20 🟢• 05-21 🔴 B 05-22 🟢• 05-23 🔴 B 05-24 🔴 B 05-25 🔴 B 05-26

Watch ░░░░░░▓▓▓▓ Add · 71% — closer role + 2.72 xERA + 41% whiff = regression incoming

Verdict: WATCH. Hoffman's 2.72 xERA and 41.3% whiff rate signal his 5.09 ERA will compress over the next 2-3 weeks. Stream him now while he's still cheap on the wire; don't burn a high pick if you can grab him mid-week.

STREAM Colton Cowser

OF · BAL · 3% owned (▲ +1.0pp day-over-day)

Why he's being added

Colton Cowser is Baltimore's RF (in a battle with Tyler 0 for Neil) and a depth outfielder trending toward regular reps. He's slashing .280 / .511 OPS over his last 10 games with 3 HR and 7 RBI — a sharp uptick from his season-long .200 average. No clear IL displacement, but the L14 heat and .302 xwOBA (exceeding his .239 wOBA by 29 points) suggest the recent surge is backed by improved barrel contact (11.3% barrel rate). At 3% owned, he's deep-league available and trending into more reps. BAL's outfield picture is unsettled; Cowser's batting order spot (7-9 range) limits ceiling, but the underlying skill warrants monitoring for league-winner upside.

🟢7 05-20 ⬜ 05-21 🟢• 05-22 ⬜ 05-23 🟢• 05-24 🟢9 05-25 🟢7 05-26

Watch ░░░░▓▓░░░░ Add · 40% — heating L14, xwOBA backing it, depth OF, limited floor

Verdict: STREAM. Cowser's .280 L14 and .302 xwOBA make him a week-to-week play in deep leagues; grab him if your wire is thin at OF, but don't chase the hot streak into a roster-crunch trade.

WATCH Casey Schmitt

2B/3B · SF · 66% owned (▲ +2.0pp day-over-day)

Why he's being added

Casey Schmitt is San Francisco's primary DH a pure utility man with starts a several positions throughout the season, owns a .891 OPS that's backed by his .361 xwOBA — elite Statcast metrics confirm the surface performance is earned. Over 89 plate appearances this season, he's slashing .296 / .348 / .543 with 4 HR and a 14.5% barrel rate. His L14 is even hotter: .311 / 5 HR / 11 RBI in 11 games. At 66% ownership (up 2 points), Schmitt is already trending into most active rosters; the xwOBA confirmation suggests he'll stick, but the buy-in window is closing. Healthier leagues will have him rostered already — his role is locked and the skill is real — but late-moving leagues may still find value on the wire.

🟢3 05-20 ⬜ 05-21 🟢3 05-22 🟢3 05-23 🟢3 05-24 🟢3 05-25 🔴 B 05-26

Watch ░░░░░░▓▓▓▓ Add · 68% — .891 OPS, .361 xwOBA, starter role, already 66% owned

Verdict: WATCH. Schmitt's .361 xwOBA and locked starting role confirm the .891 OPS is sustainable, but 66% ownership means he's already in most league conversations. Only add if you're in a below-average roster league or scoring a mid-week scoop.

WATCH Ernie Clement

2B · TOR · 61% owned (▲ +1.0pp day-over-day)

Why he's being added

Ernie Clement is Toronto's primary 2B and is experiencing a classic overheating moment: his season slash of .297 / .323 / .432 (.755 OPS) is outpacing his .286 xwOBA by 36 points — a significant red flag. Over 14 days, he's .288 / 8 RBI, extending a hot stretch, but the peripheral divergence suggests his batting average (currently riding his peripherals) is unsustainable. His 2.1% barrel rate and 25.7% hard-hit percentage rank well below the major-league median; the .755 OPS is likely a ceiling-case scenario. He's rostered in 61% of leagues and climbing — a warning signal that his stock is peaking. The role is locked, but the underlying skill doesn't justify the current ownership level.

🟢6 05-20 🟢5 05-21 🟢6 05-22 🟢6 05-23 🟢7 05-24 🟢6 05-25 🟢6 05-26

Watch ░░░░░░░░▓░ Add · 35% — role locked, but xwOBA lags wOBA by 36 points

Verdict: WATCH. Clement's .755 OPS is 36 points ahead of his xwOBA — regression is coming. He's role-locked in Toronto, but the BABIP-elevated performance makes him a sell candidate, not an add. Let him cool before reconsidering.

WATCH Spencer Horwitz

1B · PIT · 5% owned (▲ +1.0pp day-over-day)

Why he's being added

Spencer Horwitz is Pittsburgh's primary 1B with a .801 OPS season slash that masks a talent-vs-production gap: his .319 xwOBA trails his .353 wOBA by 34 points — the inverse of Mead's setup and a major red flag. Over 14 days, he's .295 / 3 HR / 6 RBI in 12 games, heating up on the surface, but that performance is outrunning his Statcast profile. His 4.7% barrel rate and 32.8% hard-hit percentage are well below league average; the recent hot streak is built on a BABIP-favorable run that's unlikely to sustain. At 5% ownership, he's deep-league available, but the xwOBA collapse relative to wOBA suggests the buying is premature. The role is real; the skill is not.

🟢5 05-20 🟢4 05-21 🟢• 05-22 🟢5 05-23 🟢1 05-24 🟢1 05-25 🟢8 05-26

Watch ░░▓░░░░░░░ Add · 25% — xwOBA trails wOBA by 34 points, hot streak unsustainable

Verdict: WATCH. Horwitz's .295 L14 looks hot, but his .319 xwOBA vs .353 wOBA split signals regression. The role is locked, but the underlying skill doesn't justify the recent performance. Avoid the BABIP-driven add.

WATCH Willy Adames

SS · SF · 73% owned (▲ +1.0pp day-over-day)

Why he's being added

Willy Adames is San Francisco's primary SS in a healthy lineup with 120 plate appearances on the season and a .610 OPS that's concerning relative to the sample size. Over 14 days, he's .254 / 3 HR / 6 RBI in 12 games — solid but not overwhelming. His xwOBA of .284 suggests his wOBA (.284) is fairly valued; there's no hidden breakout here. At 73% ownership, Adames is already rostered in most leagues. The role is locked and the lineup spot is secure, but the .610 season OPS and peripheral alignment make him a hold, not an add. This is a name for the roster to manage, not a wire target.

🟢5 05-20 ⬜ 05-21 🟢1 05-22 🟢1 05-23 🟢1 05-24 🟢1 05-25 🔴 B 05-26

Watch ░░░░░░░░░▓ Add · 15% — starter role, but .610 OPS, already 73% owned

Verdict: WATCH. Adames is a role-locked SS for SF, but his .610 OPS and .284 xwOBA offer no buy signal. At 73% ownership, he's a hold, not an add. Only target if you're filling a thin shortstop slot in a very deep league.

WATCH Carlos Cortes

OF · ATH · 15% owned (▲ +1.0pp day-over-day)

Why he's being added

Carlos Cortes is Oakland's primary RF and is experiencing an extreme BABIP-driven breakout: his season slash of .355 / .408 / .570 (.978 OPS) is inflated by a .358 BABIP that ranks well above the league sustainable threshold (~.310). Over 14 days, he's cooled to .230 / 1 HR / 2 RBI — a 125-point OPS drop from his season rate. His .391 xwOBA is elite and suggests he has genuine talent, but the recent deceleration and unsustainable BABIP make the ownership uptick (15%, up 1 point) a warning flag. The role is locked, but the regression from .978 OPS season rate to .230 recent performance indicates the market may be pricing in too much. Treat as a hold in leagues where he's already rostered; don't chase the season slash on the wire.

🟢• 05-20 🟢• 05-21 🟢• 05-22 🟢1 05-23 🟢• 05-24 🟢1 05-25 🔴 B 05-26

Watch ░░░░░▓░░░░ Add · 50% — .391 xwOBA elite, but .358 BABIP unsustainable

Verdict: WATCH. Cortes's .978 season OPS is built on a .358 BABIP that's due to crater. His .391 xwOBA is real, but the recent .230 L14 reversion is closer to his true talent than the season average. Avoid the hot-sheet add; wait for stabilization at ~.280-.300.

ADD Paul Sewald

RP · AZ · 59% owned (▲ +1.0pp day-over-day)

Why he's being added

Paul Sewald is Arizona's closer of record with 13 saves on the season, but his 3.98 season ERA is outrunning his 2.98 xERA by a full run — a classic regression signal. Over 14 days, he's posted a 6.43 ERA in 4.2 IP with 3 saves, a rough stretch that's inflating the season line. His elite 28.7% whiff rate and 122 Stuff+ (elite arsenal) suggest his true-skill ERA is closer to 3.00, meaning the recent hot mess is an anomaly, not a trend. At 59% ownership, Sewald is nearly ubiquitous, but the ERA > xERA split and lower whiff percentage relative to his peers (cf. Lee's 39.3% whiff) make him a sell, not a buy. The closer role is locked; the skill is real — but he's not undervalued on the wire.

🟢• 05-20 🟢• 05-21 🔴 B 05-22 🟢• 05-23 🔴 B 05-24 🔴 B 05-25 🔴 B 05-26

Watch ░░░░░░░░▓░ Add · 30% — closer role, but ERA ahead of xERA, already 59% owned

Verdict: ADD. Sewald's 3.98 ERA should regress toward his 2.98 xERA, making him a long-term hold, but the 59% ownership means he's priced in already. Don't add on the recent bump; let the regression play out in rosters that already own him.

WATCH Jake Burger

1B · TEX · 27% owned (▲ +1.0pp day-over-day)

Why he's being added

Jake Burger is Texas's primary 1B with a .604 season OPS that's been dragged down by a .248 BABIP — unlucky contact that mirrors Mead's profile but at a lower talent ceiling. Over 157 plate appearances, he's slashing .208 / .242 / .362, and over 14 days he's warmed to .279 / 4 HR / 11 RBI in 11 games. His .309 xwOBA is solid, and his 10.1% barrel rate and 49.3% hard-hit percentage suggest the recent hot streak has underlying skill behind it. However, his season-long .604 OPS reflects 157 PA of struggle before this recent tear — the BABIP recovery is plausible, but the sample size of success is still small. At 27% ownership and climbing, he's gaining traction; the xwOBA-to-wOBA lag suggests there's room for normalization, but the role is locked and the L14 heat is real. This is a borderline add in deep leagues; monitor for continued production.

🟢6 05-20 ⬜ 05-21 🟢5 05-22 🟢5 05-23 🟢4 05-24 🟢5 05-25 🔴 B 05-26

Watch ░░░░▓▓░░░░ Add · 45% — .309 xwOBA, .248 BABIP unlucky, but season-long struggle

Verdict: WATCH. Burger's .279 L14 looks promising, and his .309 xwOBA confirms the hot streak isn't fluky. However, his season-long .604 OPS and 157 PA sample of struggle warrant caution. Wait for one more week of confirmation before adding; if the .280+ average holds, he's a buy at 27% ownership.

WATCH Anthony Volpe

SS · NYY · 6% owned (▲ +1.0pp day-over-day)

Why he's being added

Anthony Volpe is New York's platoon (?) SS with only 30 plate appearances on the season. His L14 line is .176 / 0 HR / 5 RBI in 9 games — well below replacement level — and his AAA profile this year offered little comfort: .205 / .238 / .333 (.571 OPS) over 9 games and 42 PA at the Triple-A level. At 6% ownership (up 1 point), Volpe is gaining minimal traction. His 2 stolen bases this season (.306 xwOBA) offer slight intrigue, but the 0% barrel rate and 35.3% hard-hit percentage suggest he's not making hard contact. This is a pure watch name for dynasty leagues; don't add in mixed.

🟢8 05-20 🟢8 05-21 🔴 B 05-22 🔴 B 05-23 🔴 B 05-24 🟢7 05-25 🔴 B 05-26

Watch ▓▓░░░░░░░░ Add · 15% — platoon role, .176 L14, no AAA dominance

Verdict: WATCH. Volpe's .176 L14 and platoon designation offer no buy signal. At 6% ownership, he's available in most leagues, but there's no runway visible yet. Dynasty leagues can stash for long-term upside; mixed leagues should ignore.

WATCH Shane Baz

SP · BAL · 41% owned (▲ +1.0pp day-over-day)

Why he's being added

Shane Baz is a top Baltimore arm with a 4.50 season ERA across 6 starts and 34.0 IP, but his L14 line paints a completely different picture: 2.25 ERA in 20.0 IP with 19 strikeouts over 3 recent outings. His xERA of 4.68 suggests his true-skill ERA is higher than the recent 2.25 surface, but the strikeout rate (6.4 K/9 season-wide, but 8.5 K/9 over L14) and 1.50 WHIP indicate he's trending in the right direction. At 41% ownership (up 1 point), Baz is already rostered in most leagues, and his #1 rotation slot locks the opportunity. However, his xERA > ERA gap suggests the recent hot streak may not sustain — he's not a breakout; he's a starter regressing from a slow start to a median talent level. This is a hold in leagues where he's owned; avoid the add on the recent L14 uptick.

🟢• 05-20 ⬜ 05-21 🔴 B 05-22 ⬜ 05-23 🔴 B 05-24 🔴 B 05-25 🟢• 05-26

Watch ░░░░░▓▓░░░ Add · 50% — 2.25 L14 ERA but 4.68 xERA, starter role, already 41% owned

Verdict: WATCH. Baz's 2.25 L14 ERA is backed by strikeout upside, but his 4.68 xERA signals regression. The starter role is locked, but don't add on the recent hot stretch; he's likely to drift back toward 4.00+ ERA over the next month. Hold if you drafted him; avoid on the wire.

WATCH Yennier Cano

RP · BAL · 1% owned (▲ +1.0pp day-over-day)

Why he's being added

Yennier Cano is Baltimore's setup arm (role=setup, bullpen leverage) with elite underlying metrics but a performance profile that's running ahead of his skill. His season 1.42 ERA in 19.0 IP is inflated relative to his 3.52 xERA — a 2.10-run gap that signals regression is coming. Over 14 days, he's posted a 2.20 ERA in 4.1 IP with 5 strikeouts, but that surface line masks his elite 1.1 BB/9 and 59.5% ground-ball rate — a sinker-heavy profile that limits home-run risk and lowers his ERA volatility compared to other relievers. His 128 Stuff+ (elite range) and 7.1 K/9 confirm he's a quality arm, and the ground-ball profile suggests the 1.42 season ERA might hold longer than typical regression. At 1% ownership, he's nearly unowned, but the lack of save opportunities (0 on the season) and setup designation limit ceiling. This is a deep-league flier; hold if you got in early, but don't chase at this ownership level.

🔴 B 05-20 ⬜ 05-21 🟢• 05-22 ⬜ 05-23 🔴 B 05-24 🟢• 05-25 🔴 B 05-26

Watch ░░░░░▓░░░░ Add · 48% — elite Stuff+, 59.5% GB rate, but setup role, 1% owned

Verdict: WATCH. Cano's elite 1.42 ERA is due to regress toward his 3.52 xERA, but his 59.5% ground-ball rate and 128 Stuff+ suggest he'll hold better than typical relievers. At 1% ownership, he's a dynasty stash; mixed leagues should monitor for a rotation move or closer opportunity before adding.