Weekly Waiver Wire Roundup — Monday, July 20, 2026

Sixty rising signals fired this week, and the single most important headline is this: the outfield waiver wire is alive with opportunity, with 10 signals at the position alone, headlined by Jake Mangum posting a scorching .454 wOBA while his strikeout rate cratered to 4.3%. If you're chasing upside in the second half, the wire is delivering — but only if you move fast.

We tracked surging ownership, elite Statcast data hiding beneath modest batting averages, and a handful of buy-low targets at near-zero ownership who are doing real damage in small samples. Here's the full breakdown.

Top 5 Adds of the Week

Jake Mangum (OF, PIT) — 14% Owned (+8% 7d)

Mangum is the week's single best add, and it's not particularly close from a signal-stacking perspective. His 7-day wOBA of .454 represents a massive jump from his .373 over 30 days, and the underlying approach has changed: his strikeout rate plummeted from 13.3% to 4.3% while he maintained a 4.3% walk rate. He hit .350 with a home run across 23 plate appearances in five games, flashing 91.3 mph exit velocity and 45.0% hard-hit quality. Ownership is surging — up 8% in a week — but at just 14%, the window is wide open. This is a legitimate everyday bat getting hot at the right time.

Carson Benge (OF, NYM) — 53% Owned (+6% 7d)

Benge is already majority-owned, but if he's somehow still available in your league, stop reading and go add him. His .451 wOBA over 7 days is backed by elite batted-ball data: 93.8 mph exit velocity and 66.7% hard-hit quality. The patience is real too — a 20.0% walk rate in 30 plate appearances this week speaks to a disciplined approach, not a lucky hot streak. He hit .375 with a homer, and his ownership jumped another 6% this week. The underlying metrics fully support the surface production.

Brayan Rocchio (2B/SS, CLE) — 34% Owned (+4% 7d)

Rocchio didn't strike out once in his 7-day sample — a 0.0% K-rate down from 14.0% over 30 days. That kind of contact quality, paired with 94.7 mph exit velocity and 60.0% hard-hit quality, makes his .394 wOBA look sustainable rather than fluky. He hit .357 with a home run across five games, and his middle-infield eligibility at both second base and shortstop makes him a premium roster asset. At 34% ownership and climbing fast, he's a priority claim in leagues where he's still available.

Garrett Mitchell (OF, MIL) — 22% Owned (+1% 7d)

Mitchell quietly put together the week's most impressive batted-ball profile among the top adds. His 97.1 mph exit velocity led all five featured players, and his 66.7% hard-hit quality confirms he's barreling the ball consistently. The .382 wOBA came without a home run — a .333 average built on solid contact rather than one big fly. His walk rate ticked up to 11.8% from 9.2% over 30 days, suggesting improved plate discipline. Ownership has barely moved at 22%, meaning you likely have time, but the underlying power metrics suggest a breakout is brewing.

Nolan Arenado (3B, AZ) — 20% Owned (+1% 7d)

Arenado's surface line of .222 might scare off casual managers, but dig one layer deeper and the picture changes entirely. His 7-day wOBA of .462 surged from .339 over 30 days, driven almost entirely by a 30.8% walk rate — up from 8.6%. He struck out in just 15.4% of plate appearances, down from 22.2%. The homer and the elite plate discipline created plus value despite the modest average. At 20% ownership, Arenado is essentially free, and fantasy managers who focus on OBP or points formats should be especially aggressive here.

Biggest Risers in Ownership

Cade Cavalli (SP, WSH) — 40% Owned (+13% 7d)

Cavalli was the single largest ownership gainer this week at +13%, and he's the only starting pitcher among the top risers. His signal data didn't place him in the top-5 adds, but the market is clearly buying in on the Washington right-hander's upside. At 40% ownership, he's approaching must-roster territory in standard leagues.

Jake Mangum (OF, PIT) — 14% Owned (+8% 7d)

Mangum's +8% rise is fully justified by the data outlined above. The combination of a .454 wOBA, cratering strikeout rate, and consistent playing time (23 PA) makes this one of the week's most data-supported ownership moves. Expect the climb to continue.

Carson Benge (OF, NYM) — 53% Owned (+6% 7d)

Benge added another 6% to reach majority ownership. With 66.7% hard-hit quality and 93.8 mph EV, the underlying data says this isn't a mirage. He's approaching universal-roster status.

Brayan Rocchio (2B/SS, CLE) — 34% Owned (+4% 7d)

Rocchio's rise is well-earned — 0.0% strikeout rate and elite contact metrics justify the +4% climb. Dual positional eligibility at premium positions adds extra value that the ownership percentage doesn't fully capture yet.

Garrett Whitlock (RP, BOS) — 21% Owned (+2% 7d)

Whitlock is the lone reliever among the risers, ticking up modestly to 21%. In a week where five relief pitchers generated signals, Whitlock's ownership move suggests he may be closest to a defined high-leverage role. Monitor for saves or holds opportunity.

Buy Low Candidates

This is where the real alpha lives. These watch-list players are showing elite underlying metrics at rock-bottom ownership. They're one sustained week away from becoming the top adds.

Joey Ortiz (3B/SS, MIL) — 2% Owned

Ortiz posted the most eye-popping single Statcast number of the entire watch list: 107.3 mph exit velocity with 100.0% hard-hit quality. His .450 wOBA surged from .319 over 30 days, and his walk rate spiked to 27.3% from 5.3%. The .250 average will keep most managers away, but this is an elite underlying profile at 2% ownership. He's the buy-low of the week.

Tim Tawa (1B/2B/OF, AZ) — 1% Owned

Tawa went nuclear this week: a .702 wOBA built on a .538 average with two homers, 100.0% hard-hit quality, and 100.5 mph exit velocity. Yes, it's an early signal from five games, and a .702 wOBA is not sustainable. But the batted-ball data and the multi-position eligibility make him one of the most intriguing near-zero-ownership pickups on the wire right now.

Masataka Yoshida (DH, BOS) — 1% Owned

Yoshida is mashing in a tiny sample: .524 wOBA, two homers, 101.7 mph exit velocity, and 100.0% hard-hit quality with a minuscule 7.7% strikeout rate. The DH-only eligibility limits his utility, but in points leagues or OBP formats, this level of contact quality at 1% ownership is free production. His 30-day wOBA of .446 suggests this isn't purely a one-week fluke.

Yainer Diaz (C, HOU) — 41% Owned

Diaz's 108.5 mph exit velocity was the highest of any player in the entire signal pool this week, and his 100.0% hard-hit quality confirms every batted ball was crushed. His wOBA jumped from .356 to .465, and his strikeout rate dropped to 7.7%. At 41% ownership he's hardly a secret, but he remains unrostered in nearly six out of ten leagues despite catcher-eligible production that most managers would kill for.

Luke Raley (1B/OF, SEA) — 10% Owned

Raley's 7-day wOBA of .360 doesn't jump off the page until you see it came from a .231 mark over 30 days — a 56% increase. His strikeout rate plummeted from 28.0% to 12.5%, and he posted 100.0% hard-hit quality with 99.5 mph exit velocity. The one homer and .250 average are modest, but the batted-ball data screams that better results are coming.

Andruw Monasterio (1B/2B/3B/SS, BOS) — 0% Owned

Four-position eligibility. A .513 wOBA. Two home runs. A 93.9 mph exit velocity with 58.4% hard-hit quality. A walk rate that nearly doubled from 8.9% to 15.0%. And he's rostered in literally zero percent of leagues. Monasterio had 20 plate appearances this week, confirming consistent playing time. This is the deepest-league gem of the week.

Ty France (1B, SD) — 1% Owned

France slashed .500 with a homer, posting a .511 wOBA with 104.6 mph exit velocity and 100.0% hard-hit quality. His strikeout rate cratered from 20.7% to 6.2%. The veteran first baseman is clearly squaring up the ball, and at 1% ownership, there's essentially no cost to finding out if this is the start of a real second-half surge.

Jared Young (1B/OF, NYM) — 1% Owned

Young posted a .487 wOBA with 100.0% hard-hit quality and 100.2 mph exit velocity. His 22.2% walk rate was up from 7.7% over 30 days. The .429 average across a solid five-game sample is flashy, but it's the batted-ball profile that makes this interesting. At 1% ownership, he's a zero-risk flier.

Tristan Peters (OF, CWS) — 8% Owned

Peters' .656 wOBA was the second-highest on the entire watch list behind only Tawa, and he brings something most watch-list players don't: a 132 wRC+ confirming above-average production over a broader lens. He hit .500 with a homer while dropping his K-rate from 17.6% to 10.0%. The 92.7 mph exit velocity is average, so the sustainability question is fair, but the overall profile warrants a speculative add.

Henry Davis (C, PIT) — 0% Owned

Davis is another zero-ownership catcher showing legitimate life. His .533 wOBA jumped from .346, powered by a 9.1% strikeout rate and 18.2% walk rate — an elite approach. He hit .375 with a homer, and while the 86.4 mph exit velocity is below average, the 66.7% hard-hit quality and on-base skills make him a compelling catcher streamer in a barren position.

Paul Goldschmidt (1B, NYY) — 13% Owned (Cooling Off)

Goldschmidt's ownership is actually declining — down 4% this week — but the data tells a different story. His 7-day wOBA of .405 more than doubled his abysmal .185 mark over 30 days. His K-rate dropped from 32.9% to 18.2%, and he posted 100.0% hard-hit quality with 99.1 mph exit velocity. The walk rate tripled from 2.7% to 9.1%. Managers are selling at the bottom; the smart play is to buy.

J.T. Realmuto (C, PHI) — 15% Owned

Realmuto's .451 wOBA rose from .308 over 30 days, and his K-rate dropped from 26.8% to 20.0%. He hit .308 with a homer across a solid five-game sample. At 15% ownership and cooling by 1%, the market hasn't caught up to his improved underlying numbers yet. Catcher is always shallow — Realmuto showing signs of life is significant.

Austin Wells (C, NYY) — 5% Owned

Wells hit two home runs this week despite a .200 average, pushing his wOBA from .175 to .348. The 93.9 mph exit velocity and 41.6% hard-hit quality suggest mixed contact quality, but the power and the improved walk rate (6.2% up from 2.2%) are encouraging. At 5% in catcher-needy leagues, he's worth a look.

Position Scarcity Report

The outfield dominated this week's signal landscape with 10 rising signals — the most of any position. Between Mangum, Benge, Mitchell, Peters, Trevor Larnach, and Lane Thomas, there's genuine depth on the wire for OF-needy managers. If you need outfield help, this is the week to be aggressive.

Catcher generated the second-most signals at eight, which is remarkable for a position that's typically a desert. Yainer Diaz, J.T. Realmuto, Henry Davis, Austin Wells, Logan O'Hoppe, and Drew Cavanaugh all showed positive signals. If you've been punting catcher, the position may finally be worth revisiting.

Relief pitching produced five signals, led by Garrett Whitlock's ownership rise. The third-base and shortstop-eligible pools were also active, with four signals each at 3B and 3B/SS eligibility. The thinnest positions this week were starting pitcher (just one signal from Cavalli) and designated hitter — though Yoshida and José Tena both showed explosive underlying numbers at DH.

Multi-position eligibility was a major theme. Players like Andruw Monasterio (1B/2B/3B/SS), Tim Tawa (1B/2B/OF), Blaze Alexander (2B/3B/SS/OF), and Jake Cronenworth (1B/2B/SS) offer the roster flexibility that wins weeks in the second half. Prioritize these multi-eligible bats on your watch lists.

Looking Ahead

The catcher signal cluster deserves close monitoring next week. Eight catchers showing rising metrics simultaneously is unusual and could indicate a broader positional shift — or simply mid-July lineup adjustments as teams manage workloads. Watch specifically whether Diaz's historic exit velocity holds and whether Davis and Realmuto convert their improved approach metrics into counting stats.

On the pitching side, the near-total absence of starting pitcher signals is a yellow flag for streamers. Cade Cavalli was the lone SP riser, suggesting arms are harder to find on the wire right now — making any emerging starters next week immediate priority adds. Keep an eye on the relief market too, where closers and high-leverage arms like Whitlock could quickly shift in value as the trade deadline approaches and contenders reshape their bullpens.

Finally, the buy-low candidates running 100% hard-hit quality this week — Ortiz, Raley, France, Yoshida — are on a collision course with regression in one direction or another. Either the batting averages catch up to the exit velocities, or the small samples normalize. Either way, next week's data will tell us who's real and who was riding variance. Get ahead of it now.