RiverCon XV – 2026 Countdown
UPDATED: March 23, 2025
For those who wish to download the category listings, here’s your link to our contest category listing.
RiverCon Category – Download File
NEW: Miscellaneous and Diorama Categories were updated to be inline with IPMS/USA 2025 Category Listing
NEW: We brought back Animals in the Miscellaneous Category. However, we eliminated the IPMS Chapter/Group Build Category due to lack of support – Lol
Changes will be highlighted in blue
Note #1: Unless otherwise stated: all scales, all types, & all eras
Class I. Aircraft
(17 categories plus 6 additional splits as required)
101 Single-Engine Prop: 1/72nd Scale
105 Single-Engine: Jet 1/72 Scale
110 Multi-Engine Prop: 1/72nd Scale
115 Multi-Engine Jet: 1/72 Scale
120 Single-Engine Prop: 1/48th Scale
125 Single-Engine Jet: 1/48 Scale
130 Multi-Engine Prop: 1/48 Scale
135 Multi-Engine Jet: 1/48 Scale
140 1/32 and Larger Aircraft
145 In-Flight: non-diorama, gear-up, in-flight displays
150 Small Scale Military – 1/144 and smaller
155 Civil: Airliners, Airships, Sport, Racing, ETC.
160 Rotary Wing/Helicopters
165 Unmanned Aerial Vehicles and Gliders
170 Vacuum Form/Kitbash/Scratch-Built/Conversions
175 Out-of-the-Box – Basic Kit
180 Out-of-the-Box – Basic Kit Plus (Multimedia, i.e., PE, Resin, etc.)
Class II. Military Vehicles
(15 categories plus 7 additional splits as required)
1/35 refers to scales 1/35 and larger, i.e. 1/9, 1/16, etc.
1/48 refers to scales 1/48 to 1/100 to include 1/72.
201 Fully Tracked 1/35 & larger, thru Korea – ALLIES
205 Fully Tracked 1/35 & larger, thru Korea – AXIS
210 Fully Tracked 1/35 & larger, Post-Korea – US Made
215 Fully Tracked 1/35 & larger, Post-Korea – USSR Made
220 Fully Tracked 1/35 & larger, Post-Korea – Other Made
225 Fully Tracked with Full Interiors, Self-Propelled Artillery/Guns
230 Fully Tracked – 1/48 and Smaller
235 Armored Personnel Carriers – Wheeled
240 Armored Personnel Carriers (Half-tracks) – Tracked
245 Soft-skinned Military Vehicles
250 Artillery Pieces (all, but excluding limbers & prime movers)
255 Multi- or Towed Vehicles non-diorama display
260 Kitbash/Conversions/Scratch-Built
265 Out-of-the-Box – Basic Kit
270 Out-of-the-Box – Basic Kit Plus (Multimedia: PE, Resin, etc.)
Class III. Figures
(5 categories plus 4 additional split as required)
1/32 and 1/35 figures will compete as 54mm.
301 Historical: 53mm & Smaller
305 Historical: 54mm & Larger (to include 1/32 and 1/35 figures)
310 Fantasy
315 Science Fiction
320 Busts
Class IV. Ships
(4 categories plus 3 additional splits as required)
1/400 refers to scales 1/400 to 1/72.
Smaller than 1/400 refers to scales 1/426 and smaller.
401 Powered Surface Ships, 1/400 and Larger
405 Powered Surface Ships, Smaller than 1/400
410 Submarines
415 Sailing
Class V. Automotive
(13 categories plus 4 additional splits as required)
501 Factory Production
505 Street Rods, Hot Rods, Street Machines, Customs
510 Competition – Open Wheel
515 Competition – Closed Wheel
520 Competition – Drag Racing & All Others
525 Large Scale – 1/20 and Larger (except Motorcycles)
530 Commercial, Emergency Vehicles, Trucks
535 Motorcycles
540 Curbside, Slammers, Lowriders (all cars)
545 Automotive Technology and Culture
550 Kitbash/Conversions/Scratch-Built
555 Out-of-the-Box – Basic Kit
560 Out-of-the-Box – Basic Kit Plus (Multimedia: PE, Resin, etc.)
Class VI. Space & Science Fiction Vehicles
(11 categories plus 4 additional splits as required)
601 Real Spacecraft, Missiles, and Vehicles
605 Hypothetical Vehicles, Spacecraft, and Missiles
610 Science Fiction and Fantasy – Air & Space Vehicles
615 Science Fiction and Fantasy – Ground & Water Vehicles
620 Mecha 1/144 scale and Smaller including non-scale – Painted (Gundams, robots, etc.)
625 Mecha 1/144 scale and Smaller including non-scale – Unpainted (Gundams [with/without Panel Lines], robots, etc.)
630 Mecha above 1/144 scale – Painted (Gundams, robots, etc.)
635 Mecha above 1/144 scale – Unpainted (Gundams [with/without Panel Lines], robots, etc.)
640 Kitbash/Conversions/Scratch-Built
645 Out-of-the-Box – Basic Kit
650 Out-of-the-Box – Basic Kit Plus (Multimedia: PE, Resin, etc.)
Class VII. Miscellaneous
(6 categories plus 2 additional split as required)
701 Animal Kingdom
705 Humor in Modeling
710 Triathlon
715 Collections
720 Game Pieces
725 Miscellaneous
Class VIII. Dioramas
(2 categories plus 3 additional splits as required)
801 Military Subjects
805 Non-Military Subjects
Class IX. Young Modelers (Ages 6—17)
(2 categories plus 2 additional splits as required)
901 Military Subjects
905 Non-Military Subjects
Class X. Grand Master’s (GM)
- Any model that has won the “Best of” award at any level whether local, regional, National, or other modeling contest venue.
- “Best of” meaning Best Aircraft, Best Auto, Best of Show, etc.
- This category is not for those who won theme awards, special wards, or the individual category winners (typical 1st, 2nd, or 3rd place winners).
- Must bring proof; i.e. trophy accompanying the entry
- Models in this category are not eligible for any other show or contest awards; i.e. Theme, President’s Award, Best of Show, etc.
That’s all folks!