In My AKC in the manage dog section you can see the stats for individual dogs that you enter. Like how many Qs, MACH points, etc...
You can also check the top 5 agility dogs by breed here
https://www.akc.org/invitational/top25/agility/
You can do the same for obedience here
https://www.akc.org/invitational/top25/obedience/index.cfm?view=breed
Also the GRCA publishes the top Golden Retrievers for Obedience, Field and Agility in the GRNews every other month, and sometimes you can find it on their webpage, although right now they do not look current
http://www.grca.org/pdf/events/agility/2008%20agility%20lifetime%20stats.pdf
http://www.grca.org/pdf/events/obedience/2007obedience.pdf
Hope that helps...
You can also check the top 5 agility dogs by breed here
https://www.akc.org/invitational/top25/agility/
You can do the same for obedience here
https://www.akc.org/invitational/top25/obedience/index.cfm?view=breed
Also the GRCA publishes the top Golden Retrievers for Obedience, Field and Agility in the GRNews every other month, and sometimes you can find it on their webpage, although right now they do not look current
http://www.grca.org/pdf/events/agility/2008%20agility%20lifetime%20stats.pdf
http://www.grca.org/pdf/events/obedience/2007obedience.pdf
Hope that helps...