Thanks for posting. You can compare individual tests on the Geekbench Browser. To do this, go to a benchmark result page and click "Set Baseline" on the right side of the page (under Compare). After that, you can search for another result in the browser and it will be compared next to the result you set as the baseline. When you are done comparing to that particular baseline result, you can click "Remove Baseline" and choose another.
At the moment, 2018 MacBook Pro's are listed by their model ID. The 15-inch is listed under "MacBookPro15,1". Here is an example of a comparison: