I was intrigued of such very high rating so I looked at the reliable and trusted rating list sites and found that it was really overstated. The ELO rating of Junior at CCRL is 3026 while at CEGT it is 2841. The OWL rating list site has it at 2807. The bloated ELO rating of Junior is almost equal to the rating of number one Stockfish 131109 x64 at 3211. To check whether I am correct in my rating list statistics, I decided to have a one-on-one match between Junior 13.08.4 and Stockfish 131109.
And here is the result:
Junior 13.08.4 x64 vs. Stockfish 131109 x64 - Match 100R 1M1S
|1||Stockfish 131109 x64||88.5/100||· ·· ·· ·||83-6-11||1017.75|
|2||Junior 13.8.04 x64||11.5/100||6-83-11||· ·· ·· ·||1017.75|
100 games played / Tournament finished
Tournament start: 2013.11.29, 01:28:19
Latest update: 2013.11.29, 08:08:40
Level: Blitz 1/1
Hardware: AMD Phenom(tm) II X4 945 Processor with 2.0 GB Memory
Operating system: Windows 7 Ultimate Professional Service Pack 1 (Build 7601) 64 bit
Table created with: Arena 3.0
ELO Rating estimate with BayesElo:
Rank Name Elo + - games score oppo. draws
1 Stockfish 131109 x64 166 80 80 100 89% -166 11%
2 Junior 13.8.04 x64 -166 80 80 100 12% 166 11%
Junior's score and the equivalent BayesElo rating shows that indeed it's published ELO rating estimate is very high. There is no relative data shown to support it in its website, so it can be assumed that Junior's 3200+ ELO rating is for commercial purposes.
Download the match games here.