| #21101 | Cow JogUSACO 2014 December Bronze | |
| #21102 | Learning by ExampleUSACO 2014 December Bronze | |
| #21103 | PiggybackUSACO 2014 December Silver | |
| #21104 | MarathonUSACO 2014 December Silver | |
| #21105 | Cow JogUSACO 2014 December Silver | |
| #21106 | Guard MarkUSACO 2014 December Gold | |
| #21107 | MarathonUSACO 2014 December Gold | |
| #21108 | Cow JogUSACO 2014 December Gold | |
| #21109 | Cow RoutingUSACO 2015 January Bronze | |
| #21110 | Cow Routing IIUSACO 2015 January Bronze | |
| #21111 | It's All About the BaseUSACO 2015 January Bronze | |
| #21112 | Meeting TimeUSACO 2015 January Bronze | |
| #21113 | StampedeUSACO 2015 January Silver | |
| #21114 | Cow RoutingUSACO 2015 January Silver | |
| #21115 | Meeting TimeUSACO 2015 January Silver | |
| #21116 | Cow RectanglesUSACO 2015 January Gold | |
| #21117 | Moovie MoovingUSACO 2015 January Gold | |
| #21118 | Grass CownoisseurUSACO 2015 January Gold | |
| #21119 | Censoring (Bronze)USACO 2015 February Bronze | |
| #21120 | COWUSACO 2015 February Bronze | |
| #21121 | Cow Hopscotch (Bronze)USACO 2015 February Bronze | |
| #21122 | Censoring (Silver)USACO 2015 February Silver | |
| #21123 | Cow Hopscotch (Silver)USACO 2015 February Silver | |
| #21124 | SuperbullUSACO 2015 February Silver | |
| #21125 | Cow Hopscotch (Gold)USACO 2015 February Gold | |
| #21126 | Censoring (Gold)USACO 2015 February Gold | |
| #21127 | Fencing the HerdUSACO 2015 February Gold | |
| #21128 | MoocryptionUSACO 2015 US Open Bronze | |
| #21129 | Bessie Gets EvenUSACO 2015 US Open Bronze | |
| #21130 | Trapped in the Haybales (Bronze)USACO 2015 US Open Bronze | |
| #21131 | Palindromic Paths (Bronze)USACO 2015 US Open Bronze | |
| #21132 | Bessie Goes MooUSACO 2015 US Open Silver | |
| #21133 | Trapped in the Haybales (Silver)USACO 2015 US Open Silver | |
| #21134 | Bessie's Birthday BuffetUSACO 2015 US Open Silver | |
| #21135 | GoogolUSACO 2015 US Open Gold | |
| #21136 | Palindromic PathsUSACO 2015 US Open Gold | |
| #21137 | Trapped in the Haybales (Gold)USACO 2015 US Open Gold | |
| #21138 | Fence PaintingUSACO 2015 December Bronze | |
| #21139 | Speeding TicketUSACO 2015 December Bronze | |
| #21140 | Contaminated MilkUSACO 2015 December Bronze | |
| #21141 | Switching on the LightsUSACO 2015 December Silver | |
| #21142 | High Card WinsUSACO 2015 December Silver | |
| #21143 | Breed CountingUSACO 2015 December Silver | |
| #21144 | High Card Low Card (Gold)USACO 2015 December Gold | |
| #21145 | Fruit FeastUSACO 2015 December Gold | |
| #21146 | Bessie's DreamUSACO 2015 December Gold | |
| #21147 | Max FlowUSACO 2015 December Platinum | |
| #21148 | High Card Low Card (Platinum)USACO 2015 December Platinum | |
| #21149 | Counting HaybalesUSACO 2015 December Platinum | |
| #21150 | Promotion CountingUSACO 2016 January Bronze | |
| #21151 | Angry CowsUSACO 2016 January Bronze | |
| #21152 | Mowing the FieldUSACO 2016 January Bronze | |
| #21153 | Angry CowsUSACO 2016 January Silver | |
| #21154 | Subsequences Summing to SevensUSACO 2016 January Silver | |
| #21155 | Build GatesUSACO 2016 January Silver | |
| #21156 | Angry CowsUSACO 2016 January Gold | |
| #21157 | Radio ContactUSACO 2016 January Gold | |
| #21158 | Lights OutUSACO 2016 January Gold | |
| #21159 | Fort MooUSACO 2016 January Platinum | |
| #21160 | Mowing the FieldUSACO 2016 January Platinum | |
| #21161 | Lights OutUSACO 2016 January Platinum | |
| #21162 | Milk PailsUSACO 2016 February Bronze | |
| #21163 | Circular BarnUSACO 2016 February Bronze | |
| #21164 | Load BalancingUSACO 2016 February Bronze | |
| #21165 | Circular BarnUSACO 2016 February Silver | |
| #21166 | Load BalancingUSACO 2016 February Silver | |
| #21167 | Milk PailsUSACO 2016 February Silver | |
| #21168 | Circular BarnUSACO 2016 February Gold | |
| #21169 | Circular Barn RevisitedUSACO 2016 February Gold | |
| #21170 | Fenced InUSACO 2016 February Gold | |
| #21171 | Load BalancingUSACO 2016 February Platinum | |
| #21172 | Fenced InUSACO 2016 February Platinum | |
| #21173 | Circular BarnUSACO 2016 February Platinum | |
| #21174 | Diamond CollectorUSACO 2016 US Open Bronze | |
| #21175 | Bull in a China ShopUSACO 2016 US Open Bronze | |
| #21176 | Field ReductionUSACO 2016 US Open Bronze | |
| #21177 | Field ReductionUSACO 2016 US Open Silver | |
| #21178 | Diamond CollectorUSACO 2016 US Open Silver | |
| #21179 | Closing the FarmUSACO 2016 US Open Silver | |
| #21180 | Splitting the FieldUSACO 2016 US Open Gold | |
| #21181 | Closing the FarmUSACO 2016 US Open Gold | |
| #21182 | 248USACO 2016 US Open Gold | |
| #21183 | 262144USACO 2016 US Open Platinum | |
| #21184 | Bull in a China ShopUSACO 2016 US Open Platinum | |
| #21185 | LandscapingUSACO 2016 US Open Platinum | |
| #21186 | Square PastureUSACO 2016 December Bronze | |
| #21187 | Block GameUSACO 2016 December Bronze | |
| #21188 | The Cow-SignalUSACO 2016 December Bronze | |
| #21189 | Counting HaybalesUSACO 2016 December Silver | |
| #21190 | Cities and StatesUSACO 2016 December Silver | |
| #21191 | MoocastUSACO 2016 December Silver | |
| #21192 | MoocastUSACO 2016 December Gold | |
| #21193 | Cow ChecklistUSACO 2016 December Gold | |
| #21194 | Lasers and MirrorsUSACO 2016 December Gold | |
| #21195 | Lots of TrianglesUSACO 2016 December Platinum | |
| #21196 | Team BuildingUSACO 2016 December Platinum | |
| #21197 | Robotic Cow HerdUSACO 2016 December Platinum | |
| #21198 | SymmetryUSACO 2011 January Bronze | |
| #21199 | Cleaning the DishesUSACO 2011 January Bronze | |