What is the DMC?

The DMC (De Mathematics Competitions) is a nonprofit organization led by DeToasty3 that makes mock contests for the AMCs and MATHCOUNTS. Along with ALP, DMC created ADMC, an original contest.

• DeToasty3
• pandabearcat
• pog

Our YouTube channel may be accessed here. The DMC Committee will mostly use this for posting video solutions to past DMC problems, but we are open to any other video suggestions, which may be sent to pog in a private message on Art of Problem Solving.

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Past DMC Contests

2025-2026 Season

To be announced.

2024-2025 Season

DMC 8 - November 3, 2024

• Logistics: AoPS Announcement Post
• Forum: AoPS Discussion Forum
• MathDash Links:
  • DMC 8 (Untimed)
  • DMC 8 (Timed)

2023-2024 Season

There were no contests this season.

2022-2023 Season

DMC 10A - May 27, 2022 to August 5, 2022

• Logistics: AoPS Announcement Post
• Forum: AoPS Discussion Forum
• Papers:
  • DMC 10A Paper
  • DMC 10A Solutions

DMC 10B - October 28, 2022 to November 18, 2022

• Logistics: AoPS Announcement Post
• Forum: AoPS Discussion Forum
• Papers:
  • DMC 10B Paper
  • DMC 10B Solutions

DMC 12A - May 27, 2022 to August 5, 2022

• Logistics: AoPS Announcement Post
• Forum: AoPS Discussion Forum
• Papers:
  • DMC 12A Paper
  • DMC 12A Solutions

DMC 12B - October 28, 2022 to November 18, 2022

• Logistics: AoPS Announcement Post
• Forum: AoPS Discussion Forum
• Papers:
  • DMC 12B Paper
  • DMC 12B Solutions

2021-2022 Season

DMC 10A - May 7, 2021 to June 11, 2021

• Logistics: AoPS Announcement Post
• Forum: AoPS Discussion Forum
• Papers:
  • DMC 10A Paper
  • DMC 10A Solutions

DMC 10B - June 11, 2021 to August 20, 2021

• Logistics: AoPS Announcement Post
• Forum: AoPS Discussion Forum
• Papers:
  • DMC 10B Paper
  • DMC 10B Solutions

DMC 10C - June 11, 2021 to August 20, 2021

• Logistics: AoPS Announcement Post
• Forum: AoPS Discussion Forum
• Papers:
  • DMC 10C Paper
  • DMC 10C Solutions

DMC 11 - May 7, 2021 to June 11, 2021

• Logistics: AoPS Announcement Post
• Forum: AoPS Discussion Forum
• Papers:
  • DMC 11 Paper
  • DMC 11 Solutions

DIME - September 17, 2021 to December 31, 2021

• Logistics: AoPS Announcement Post
• Forum: AoPS Discussion Forum
• Papers:
  • DIME Paper
  • DIME Solutions

ADMC - September 25, 2021

• Logistics: AoPS Announcement Post
• Forum: AoPS Discussion Forum
• Papers:
  • Individual Round 1 Paper
  • Individual Round 2 Paper
  • Team Round Paper
  • Tiebreaker Round Paper
  • ADMC Solutions

DeMathCounts Chapter - March 7, 2022 to April 7, 2022

• Logistics: AoPS Announcement Post
• Forum: AoPS Discussion Forum
• Papers:
  • Sprint Round Paper
  • Target Round Paper
  • DeMathCounts Chapter Solutions

2020-2021 Season

DMC 10 - September 30, 2020 to November 14, 2020

• Logistics: AoPS Announcement Post
• Forum: AoPS Discussion Forum
• Papers:
  • DMC 10 Paper
  • DMC 10 Solutions

DIME - February 14, 2021 to March 7, 2021

• Logistics: AoPS Announcement Post
• Forum: AoPS Discussion Forum
• Papers:
  • DIME Paper
  • DIME Solutions