DC Challenges 2026

[Gilthanis]

Year Long Events
BOINCGames - Marathon - https://www.boincgames.com/index.php
- Each user must individually sign up one time in order for their contributions to count.

January
16th - 23rd - PrimeGrid - World Nothing Day Challenge - ESP work units only

20th - 23rd - BOINCGames sprint​

25th - 31st - 2026 7th Annual Folding Challenge - https://hardforum.com/threads/2026-7th-annual-folding-challenge-jan-25-31-2026.2045313/​

February
Entire month - Tour De Primes - PrimeGrid

March
7th - 17th - PrimeGrid - Telephone Challenge - SoB work units only

April
10th - 13th - BOINCGames sprint
30th - May 5th - PrimeGrid - Shannon's Birthday Challenge - Primorial work units only

May
5th - 19th - 17th Annual BOINC Pentathlon - https://hardforum.com/threads/seti-germanys-17th-annual-pentathlon-2026.2047205/

June
3rd - 10th - PrimeGrid - h4ck3r's Birthday Challenge - 321 work units only
6th - 15th - BOINCGames sprint

July

August
12th - 15th - PrimeGrid - Perseid Meteor Shower Challenge - PPSE work units only

September
7th - 12th - PrimeGrid - Baengno Challenge - SR5 work units only
25th - 28th - BOINCGames sprint

October
2nd - 7th - PrimeGrid - Suzuki's Birthday Challenge - GFN19 work units only
23rd - 26th - BOINCGames sprint

November
6th - 13th - PrimeGrid - Lehmer's Birthday Challenge - GCW work units only
20th - 23rd - BOINCGames sprint

December
18th - 28th - PrimeGrid - Photon Challenge - GFN22 work units only

 

[Gilthanis]

Added the schedule for the PrimeGrid challenge series.

 

[Gilthanis]

Added the BOINCGames sprint schedule