January 18, 2012
- 06:5806:58, January 18, 2012 diff hist +28 m Challenges/Halo: Reach Updated challenge table.
January 15, 2012
- 11:4911:49, January 15, 2012 diff hist +772 m Challenges/Reach/2012-January Updated challenges for January 2012.
- 11:4911:49, January 15, 2012 diff hist −45 m Challenges/Halo: Reach Updated challenge table.
- 00:1900:19, January 15, 2012 diff hist +949 m Challenges/Reach/2012-January Updated challenges for January 2012.
- 00:1900:19, January 15, 2012 diff hist +64 m Challenges/Halo: Reach Updated challenge table.
January 13, 2012
- 15:2315:23, January 13, 2012 diff hist +753 m Challenges/Reach/2012-January Updated challenges for January 2012.
- 15:2215:22, January 13, 2012 diff hist +7 m Challenges/Halo: Reach Updated challenge table.
January 12, 2012
- 21:1521:15, January 12, 2012 diff hist +878 m Challenges/Reach/2012-January Updated challenges for January 2012.
- 21:1521:15, January 12, 2012 diff hist +23 m Challenges/Halo: Reach Updated challenge table.
January 11, 2012
- 10:5710:57, January 11, 2012 diff hist +723 m Challenges/Reach/2012-January Updated challenges for January 2012.
- 10:5710:57, January 11, 2012 diff hist +15 m Challenges/Halo: Reach Updated challenge table.
January 10, 2012
- 10:3310:33, January 10, 2012 diff hist +840 m Challenges/Reach/2012-January Updated challenges for January 2012.
- 10:3310:33, January 10, 2012 diff hist −31 m Challenges/Halo: Reach Updated challenge table.
January 9, 2012
- 22:0922:09, January 9, 2012 diff hist +914 m Challenges/Reach/2012-January Updated challenges for January 2012.
- 22:0922:09, January 9, 2012 diff hist −59 m Challenges/Halo: Reach Updated challenge table.
January 8, 2012
- 07:2307:23, January 8, 2012 diff hist +911 m Challenges/Reach/2012-January Updated challenges for January 2012.
- 07:2307:23, January 8, 2012 diff hist +46 m Challenges/Halo: Reach Updated challenge table.
January 5, 2012
- 09:2709:27, January 5, 2012 diff hist +733 m Challenges/Reach/2012-January Updated challenges for January 2012.
- 09:2709:27, January 5, 2012 diff hist −65 m Challenges/Halo: Reach Updated challenge table.
January 4, 2012
- 10:0010:00, January 4, 2012 diff hist +930 m Challenges/Reach/2012-January Updated challenges for January 2012.