Prospect Radar: Week 7 + Season Spotlights
Matt Shaw torched Triple-A pitching for a .346 AVG and video-game .923 SLG over 31 plate appearances, launching five homers and squaring up 63 % of his contact. Samuel Basallo wasn’t far behind, stinging 70 % of his balls in play and pairing a .333 AVG with three long balls, while 19-year-old Kevin McGonigle reached base in half his trips and—most impressively—did not strike out once. On the flip side, swing-and-miss gremlins dragged down former hobby darlings Carson Williams and Carter Johnson. Season-to-date trends continue to shine a spotlight on Konnor Griffin’s power-speed combo, Marcelo Mayer’s growing on-base skills, and Eduardo Tait’s rare thump behind the plate.
🔥 Red-Hot Bats
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Matt Shaw (AAA Iowa, CHC) – 31 PA | .346 AVG | .923 SLG | .577 ISO | 6.5 K % Shaw’s barrel binge produced five homers and a .563 wOBA—the highest weekly mark in the dataset. Recent PSA-10 autos from 2023 Bowman Draft closed at $112 on 5-12.
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Samuel Basallo (AAA Norfolk, BAL) – 30 PA | .333 AVG | .833 SLG | .500 ISO | 13.3 K % Basallo averaged 93 mph off the bat and clocked three homers. His 2023 Bowman Chrome 1st PSA-10 autos last sold for $175 on 5-14.
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Kevin McGonigle (Low-A Lakeland, DET) – 16 PA | .308 AVG | .462 SLG | 0.0 K % The Tigers’ first-rounder finished every at-bat without a punch-out and posted a 62 % hard-hit rate. Raw autos from 2025 Bowman are changing hands around $150 BIN.
🥶 Ice-Cold Bats
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Carson Williams (AAA Durham, TBR) – 26 PA | .125 AVG | .167 SLG | 38.5 K % Williams’ bats missed more than they found barrels; his wOBA cratered to .171. PSA-10 1st autos that commanded $300 in March now list near $250 OBO.
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Carter Johnson (Low-A Jupiter, MIA) – 28 PA | .174 AVG | .304 SLG | 35.7 K % Just two balls left his bat harder than 95 mph all week. Raw chromes from 2024 Bowman Draft dipped to $33 in mid-May.
🌟 Season Spotlights
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Konnor Griffin (Low-A Bradenton, PIT) – 139 PA | .341 AVG | .587 SLG | .418 wOBA | 7 HR | 14 SB | 23 K % Griffin’s blend of 52 % hard-hit rate and plus wheels keeps his ceiling squarely in A-tier territory. Ungraded refractor autos /499 have slid to $120–130.
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Marcelo Mayer (AAA Worcester, BOS) – 173 PA | .273 AVG | .474 SLG | .355 wOBA | 8 HR | 19 K % Since April 20 he owns a .386 OBP, driven by a 15 % walk clip. PSA-10 1st autos most recently settled around $330.
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Eduardo Tait (Low-A Clearwater, PHI) – 140 PA | .266 AVG | .484 SLG | .344 wOBA | 6 HR | 21 K % The 18-year-old catcher’s 44 % hard-hit rate and .219 ISO hint at middle-order upside; sapphire autos have been fetching $70–90 at auction.
💰 Hobby Price Pulse
| Player & Card | Latest Comp | 30-Day Δ |
|---|---|---|
| Matt Shaw — 2023 Draft PSA-10 auto | $112 (5-12) | –29 % |
| Samuel Basallo — 2023 Chrome PSA-10 auto | $175 (5-14) | +6.5 % |
| Kevin McGonigle — 2025 Bowman raw auto | $150 (5-10) | n/a (new issue) |
| Carson Williams — 2021 Draft PSA-10 auto | $250 OBO (active 5-17) | –40 % since March |
| Konnor Griffin — 2025 Bowman /499 auto | $125 BIN (5-17) | –21 % MoM |
📈 Top-100 Prospect Movement (May 11 – 17)
| Player | Org | Rank | Move | Note |
|---|---|---|---|---|
| Dalton Rushing | LAD | #15 | MLB debut 5/15 | Barnes DFA’d for roster spot |
| Travis Bazzana | CLE | #12 | 7-day IL | Right-side soreness, MRI pending (5/16) |
| Rhett Lowder | CIN | #31 | Rehab → AAA | First Louisville start (5/16) |
| Trey Yesavage | TOR | #71 | Promoted | 55 K in 33⅓ IP earns High-A jump (5/16) |
| Walker Jenkins | MIN | #6 | IL | Left-ankle setback; ETA early June |
🩹 Injury & Other Notes
- Jac Caglianone keeps mashing AA pitching (.323 / .396 / .571), prompting Royals-fan chatter about a summer call-up. — MLB.com
- Bubba Chandler rocketed from #11 to #2 in MLB Pipeline’s May 12 Top-100 update, giving Pittsburgh two arms in the top five. — MLB.com
- Guardians infielder Travis Bazzana still awaiting imaging; timetable TBD.