Three attempts per height, and how misses carry
At each new height, a vaulter gets up to three tries to clear it. Clearing resets the counter for the next height. What trips people up is that a miss carries forward: two misses at one height plus a miss at the next height, without a clearance between them, is three straight misses and an elimination, not three tries at one bar. Coaches call this the rolling-miss rule, and it is the single most misunderstood part of vault competition for new athletes and parents alike.

