This seems a bit odd and may be part of the issue. Putting that aside...
You say you're athletic...join forums that pertain to your interests and get involved with local groups. I race bicycles (road and mountain) and I have met a ton of people that share the same interest...guys and girls. I can literally ride with a group every day of the week. It's easy to get to know people with similar interests and because it's a group activity people aren't as guarded.
Car type activities are typically a sausage fest and the girls that are around are usually just supporting their partner.
Oh, and don't try so hard...
2008 E88--Fuel-It! Stage 4 LPFP & PI--PS2 turbos--JB4/MHD--FBO--662whp/604wtq
2011 E90--Fuel-It! S2BL LPFP and PI--PS2 Turbo--JB4/MHD--FBO--546whp/589wtq
2013 Mini JCW--Tune--DP--FMIC--a couple Fuel-It! goodies--265whp/320wtq
2015 F82--Fuel-It! Stage 3 LPFP & PI--PS2 Turbos-- JB4/BM3-FBO