How to Search for Items by Bidder on eBay
After you’ve lost an auction or two to another eBay bidder, you may want to find out more about their bidding habits to help you compete against them in the future. To do this, you can simply click Advanced Search on any eBay page, and you are brought to the Advanced Search page. You then use the Items By Bidder search option and run a search.
Click the option button on the Include Completed Listings line.
Keep in mind that eBay has a 30-day limit on the auction information it returns; so don’t expect to see results from a year ago.
Choose the number of items you want to see per page.
On the resulting page you will see a list of all the items you’ve bid on. The ones that you’ve won are marked with your user ID and an asterisk (*) indicating you are the winner. You will also see the listings that you’ve lost, and the user ID of the person who won!
Now, run the same search with that person’s user ID and you’ll get an idea of how much they bid in similar auctions to win. You should check all of the bidder’s auctions to see how aggressively he or she bids on items. You can also get a pretty good handle on how badly a bidder wants specific items — and how high that person will bid before dropping out.
If the bidder was bidding on the same item in the past that you’re both interested in now, you can also get a fairly good idea of how high that person is willing to go for the item.
You may be tempted to try to contact a bidder you’re competing with so you can get information about the person more easily. This is not only bad form but could also get you suspended. Don’t do it!