It is hard to believe your stats and NOT because I don't believe that you are not as good as your 73/3 stat.
Last 2 games I lost about 7000 points in 2 games (from 63k to 56k).
The first loss was about 4000 points, a game-freeze ( I feel bad about it because I was host and I was winning in that game)
If you start a 4 player rank game and your teammate quits then you can lose about 6000 points (if you are 63k+ against someone with 34k) without even starting a battle (thus play only 2/2 ranked, very important).
My style is very offensive and aggressive and I prefer the quick victory, sometimes it turns out that I was underrating my opponent a little and as a result I lose sometimes against campers.
Jean-Baptiste Raymond de Lacrosse (Meilhan, 5 September 1761 — Meilhan, 10 September 1829) was a French sailor and admiral, hero of the French Revolutionary Wars.