| #22501 | Threatening LetterUSACO 2010 December Gold | |
| #22502 | Qualified PrimesUSACO 2007 January Bronze | |
| #22503 | Making ChangeUSACO 2007 January Bronze | |
| #22504 | The Bale TowerUSACO 2007 January Bronze | |
| #22505 | Protecting the FlowersUSACO 2007 January Silver | |
| #22506 | Tallest CowUSACO 2007 January Silver | |
| #22507 | Balanced LineupUSACO 2007 January Silver | |
| #22508 | Balanced LineupUSACO 2007 January Gold | |
| #22509 | Problem SolvingUSACO 2007 January Gold | |
| #22510 | Cow SchoolUSACO 2007 January Gold | |
| #22511 | Cow YahtzeeUSACO 2007 February Bronze | |
| #22512 | Bronze Lilypad PondUSACO 2007 February Bronze | |
| #22513 | Buy One Get One FreeUSACO 2007 February Bronze | |
| #22514 | The Cow LexiconUSACO 2007 February Silver | |
| #22515 | Silver Lilypad PondUSACO 2007 February Silver | |
| #22516 | Silver Cow PartyUSACO 2007 February Silver | |
| #22517 | Building A New BarnUSACO 2007 February Gold | |
| #22518 | Cow SortingUSACO 2007 February Gold | |
| #22519 | Lilypad PondUSACO 2007 February Gold | |
| #22520 | Fireworks ShowUSACO 2007 March Bronze | |
| #22521 | Bovine LatinUSACO 2007 March Bronze | |
| #22522 | Cows of the Round TableUSACO 2007 March Bronze | |
| #22523 | Cow TrafficUSACO 2007 March Silver | |
| #22524 | Balanced LineupUSACO 2007 March Silver | |
| #22525 | Monthly ExpenseUSACO 2007 March Silver | |
| #22526 | Gold Balanced LineupUSACO 2007 March Gold | |
| #22527 | Ranking the CowsUSACO 2007 March Gold | |
| #22528 | Face The Right WayUSACO 2007 March Gold | |
| #22529 | Cow SolitaireUSACO 2007 US Open Bronze | |
| #22530 | The Flower GardenUSACO 2007 US Open Bronze | |
| #22531 | Cow CountingUSACO 2007 US Open Bronze | |
| #22532 | Bronze Cow PartyUSACO 2007 US Open Bronze | |
| #22533 | City HorizonUSACO 2007 US Open Silver | |
| #22534 | Catch That CowUSACO 2007 US Open Silver | |
| #22535 | FliptileUSACO 2007 US Open Silver | |
| #22536 | Cheapest PalindromeUSACO 2007 US Open Gold | |
| #22537 | DiningUSACO 2007 US Open Gold | |
| #22538 | ConnectUSACO 2007 US Open Gold | |
| #22539 | Privileged CowsUSACO 2007 October Bronze | |
| #22540 | Perfect SquaresUSACO 2007 October Bronze | |
| #22541 | Bessie's Secret PastureUSACO 2007 October Silver | |
| #22542 | Obstacle CourseUSACO 2007 October Silver | |
| #22543 | Cow CashUSACO 2007 October Gold | |
| #22544 | Super PaintballUSACO 2007 October Gold | |
| #22545 | ExplorationUSACO 2007 November Bronze | |
| #22546 | Speed ReadingUSACO 2007 November Bronze | |
| #22547 | Avoid The LakesUSACO 2007 November Bronze | |
| #22548 | Cow HurdlesUSACO 2007 November Silver | |
| #22549 | Milking TimeUSACO 2007 November Silver | |
| #22550 | Best Cow LineUSACO 2007 November Silver | |
| #22551 | Telephone WireUSACO 2007 November Gold | |
| #22552 | Cow RelaysUSACO 2007 November Gold | |
| #22553 | SunscreenUSACO 2007 November Gold | |
| #22554 | BookshelfUSACO 2007 December Bronze | |
| #22555 | Bookshelf 2USACO 2007 December Bronze | |
| #22556 | Card StackingUSACO 2007 December Bronze | |
| #22557 | Charm BraceletUSACO 2007 December Silver | |
| #22558 | Building RoadsUSACO 2007 December Silver | |
| #22559 | Mud PuddlesUSACO 2007 December Silver | |
| #22560 | Sightseeing CowsUSACO 2007 December Gold | |
| #22561 | Gourmet GrazersUSACO 2007 December Gold | |
| #22562 | Best Cow Line, GoldUSACO 2007 December Gold | |
| #22563 | Summing SumsUSACO 2007 Special Chinese Gold | |
| #22564 | The Bovine Accordion and Banjo OrchestraUSACO 2007 Special Chinese Gold | |
| #22565 | TreasureUSACO 2007 Special Chinese Gold | |
| #22566 | Stump RemovalUSACO 2006 January Bronze | |
| #22567 | Finicky GrazersUSACO 2006 January Bronze | |
| #22568 | The Water BowlsUSACO 2006 January Bronze | |
| #22569 | Dollar DayzUSACO 2006 January Silver | |
| #22570 | The Cow PromUSACO 2006 January Silver | |
| #22571 | The GroveUSACO 2006 January Silver | |
| #22572 | Redundant PathsUSACO 2006 January Gold | |
| #22573 | Roping the FieldUSACO 2006 January Gold | |
| #22574 | Corral the CowsUSACO 2006 January Gold | |
| #22575 | The Moronic CowmpouterUSACO 2006 February Bronze | |
| #22576 | DNA AssemblyUSACO 2006 February Bronze | |
| #22577 | Cow PhrasebookUSACO 2006 February Bronze | |
| #22578 | Stall ReservationsUSACO 2006 February Silver | |
| #22579 | Treats for the CowsUSACO 2006 February SilverUSACO 2006 February Gold | |
| #22580 | Backward Digit SumsUSACO 2006 February SilverUSACO 2006 February Gold | |
| #22581 | CellphonesUSACO 2006 February Gold | |
| #22582 | Steady Cow AssignmentUSACO 2006 February Gold | |
| #22583 | Bedtime Reading, IUSACO 2006 US Open Bronze | |
| #22584 | Eenie Meenie Miney MoeUSACO 2006 US Open Bronze | |
| #22585 | Cow PizzaUSACO 2006 US Open Bronze | |
| #22586 | Bedtime Reading, IIUSACO 2006 US Open Bronze | |
| #22587 | Cows on a LeashUSACO 2006 US Open Bronze | |
| #22589 | County Fair EventsUSACO 2006 US Open Silver | |
| #22590 | The Climbing WallUSACO 2006 US Open Silver | |
| #22591 | The County FairUSACO 2006 US Open SilverUSACO 2006 US Open Gold | |
| #22592 | The Milk QueueUSACO 2006 US Open Gold | |
| #22593 | Two-Headed CowsUSACO 2006 US Open Gold | |
| #22594 | Another Cow Number GameUSACO 2006 October Gold | |
| #22595 | Guess My NumberUSACO 2006 October Gold | |
| #22596 | Cows on SkatesUSACO 2006 October Gold | |
| #22597 | Cow Pie TreasuresUSACO 2006 October Gold | |
| #22598 | Hungry CowsUSACO 2006 October Gold | |
| #22599 | Building the MoatUSACO 2006 October Gold | |
| #22600 | New Cow BrandsUSACO 2006 November Bronze | |