i have been having a lot of success with a burrow rush in 1vs 1 but it doesnt work if they are human because their militia usually takes out my buildings but here is how you do it if you dont know

you take 4 of 5 starting peons and send them directly to the other persons base. put the last peon on gold. start training 3 more peons and set them to mine gold. when you get to your opponets base, start building 4 burrows so that they are within range of there main building such as tree of life or town hall. when the burrows are finished put the peon in it and have all 4 burrows micro on anything attacking them or a hero if they have one. also after the 3 peons are trained and put on gold train 3 more and put them on lumber if you dont then you will have 0 lumber after the rush.