Glossary
The language of MLB The Show Diamond Dynasty and its card market — explained in plain English. Whether you're new to the stub economy or just want to nail down what “ROI after tax” really means, start here.
Ratings & Card Quality
How cards are graded — by the game, by the community, and by DiamondOps.
- OverallOVR
- A card's headline rating in MLB The Show, from 1 to 99. It's a broad average of every attribute on the card — including ones that barely affect how the card plays in-game. Two cards with the same OVR can perform very differently, which is why re-weighted scores like OpScore exist.
- OpScore
- The DiamondOps composite rating. It re-weights a card's attributes toward what actually wins games and adjusts for the difficulty you play on — so a single number reflects real in-game performance, not a flat average. Read the full breakdown on the OpScore page.
- True Overall
- A community term for any re-weighted overall that tries to correct the game's flat OVR. Formulas vary site to site, and most are not difficulty-aware. OpScore is our difficulty-aware take on the same idea.
- Rarity
- A card's tier, shown by its color band: Common, Bronze, Silver, Gold, Diamond, and the special 99-overall Red Diamond. Rarity roughly tracks overall but is its own attribute, which is why you can filter by it directly.
- Quirk
- A situational trait attached to a card — for example, Dead Red boosts contact against fastballs, and Unfazed improves performance in high-pressure moments. Quirks make a card play better than its raw attributes suggest, so OpScore credits them with an uplift bonus.
- ParallelPXP · Parallel XP
- A progression system: using a card earns Parallel XP (PXP), which levels it through Parallel tiers (P1–P5), each adding permanent attribute boosts. A Parallel 5 copy is strictly stronger than a Parallel 0 copy of the same card — and on the market, higher parallels can command a premium.
- Live Series
- Cards based on active MLB players that update throughout the seasonto reflect real-world performance and roster moves. They're the backbone of the market and by far the largest card set in the game.
- SuperchargedAugment
- A temporary boost the game applies to a rotating set of cards — such as Player of the Week — raising their overall for a limited window. Because the boost expires, a supercharged price spike is usually short-lived, which makes these cards a classic flip trap if you buy in late.
Attributes & Gameplay
The in-game mechanics that determine which attributes actually matter.
- PCIPlate Coverage Indicator
- The Plate Coverage Indicator — the reticle you aim while batting. Higher plate vision enlarges it; higher difficulties shrink it dramatically. That trade-off is why vision and discipline are weighted more heavily at tougher difficulties.
- Contact & Power
- The two core hitting attributes, each split by pitcher handedness (vs L / vs R). Contact governs how reliably you square the ball up; power governs how far it travels. The handedness splits are why a card can be elite against righties and merely good against lefties.
- Plate Vision & Discipline
- Vision sets your PCI size (pitch recognition); discipline reduces the chance of chasing pitches out of the zone. Both grow in importance as difficulty rises and timing windows tighten.
- DifficultyAll-Star · Hall of Fame · Legend
- The CPU difficulty you play on. DiamondOps computes OpScore separately for All-Star, Hall of Fame, and Legend because the same card performs differently at each. Use the AS | HoF | Legend toggle to match your level.
- Two-Way Player
- A card that both hits and pitches — the Ohtani archetype. DiamondOps scores both sides separately so you can judge it as a hitter and as a pitcher independently, rather than blending the two into one misleading number.
The Market & Trading
How the Community Market works and the vocabulary of buying, selling, and flipping.
- Stubs
- The in-game currency of Diamond Dynasty. You earn stubs by playing, completing programs, and selling cards — and spend them buying cards and packs on the Community Market. Everything DiamondOps prices is denominated in stubs.
- Buy Now
- The lowest price at which you can instantly buy a card right now — the cheapest active sell order on the market. Read it alongside Sell Order to see the current spread.
- Sell Order
- The highest price a buyer is currently willing to pay — the best standing buy order. Selling into it is instant. The gap between Buy Now and Sell Order is the spread a flipper tries to capture.
- Quick SellQS
- Selling a card directly to the game for a small, fixed stub value instead of listing it on the market. It removes the card from your inventory. The quick-sell value acts as a price floor — for anything worth listing, the market pays more.
- Market Tax
- The 10% fee MLB The Show takes from every Community Market sale. Sell a card for 10,000 stubs and you net 9,000. Every flip-profit and ROI figure on DiamondOps is calculated after tax — so the number you see is the number you keep.
- Flip
- Buying a card low and selling it higher to profit from the spread or a price swing, rather than to play with it. The core activity of market grinding — DiamondOps surfaces candidates on the Flips page.
- Flip Profit & ROI
- Flip profit is what you net after the 10% market tax. ROI (return on investment) expresses that profit as a percentage of what you paid — so a small, cheap flip and a large, expensive one can be compared on equal footing. A 1,000-stub profit is great on a 5,000-stub card and unremarkable on a 200,000-stub card.
- Buried Gem
- A card whose market price is unusually low relative to how good it actually plays — high OpScore, low cost. The market hasn't caught up yet, which makes it a buy before the correction.
- AnomalyPrice Blip
- A sudden spike or dropin a card's price versus its recent rolling average. Anomalies flag unusual activity worth a look — a real-world breakout, a roster update, supercharge news, or sometimes bot manipulation.
- Bot / Bot Risk
- Bots are automated accounts that buy and sell to manipulate prices for profit. Bot riskis a DiamondOps signal estimating how likely a card's recent movement is bot-driven rather than genuine demand — so you don't chase a fake rally.
- Snipe
- Buying a card the instant it's listed below market value, before anyone else grabs it. Snipes are the cleanest flips going — but they reward fast reactions and constant watching, which is exactly the busywork market tools aim to reduce.
Collections & Progression
The modes and systems that hand out cards, stubs, and rewards.
- Diamond DynastyDD
- MLB The Show's flagship card-collecting, team-building mode. You assemble a roster from cards you earn or buy, then play online and against the CPU. The entire stub economy — and everything DiamondOps tracks — revolves around it.
- Program
- A time-limited content drop with a path of tasks and XP that pays out stubs, packs, and exclusive cards. Programs are the main way to earn premium cards without buying them — track yours on the Programs page.
- Collection
- A set of cards you lock in — by owning or turning them in — to unlock a reward, often a powerful exclusive card. Completing a collection can be cheaper than buying the reward outright, which creates real market dynamics around the required cards. Track progress on the Collections page.
- Mission
- A specific in-game objective — say, hit 3 home runs with Dodgers cards — that rewards stubs, XP, or program progress. Missions are the granular tasks that feed the larger programs.
- Pack
- A randomized bundle of cards, bought with stubs or earned as a reward. Pack pulls are the supply side of the market — when a new card floods in from packs, its price drops fast, then recovers as the supply is absorbed.
- Roster Update
- The weekly refresh of Live Series cards to match real MLB performance. Ratings rise and fall with real-world play, and prices move with them — a hot streak can lift a card's overall and its market value overnight. Anticipating updates is a core flipping edge.
Put the terms to work
Browse the live market, spot buried gems, and find your next flip.