6. Most consecutive maiden overs
Bapu Nadkarni of India holds the record of bowling the maximum number of maiden overs on the trot. Nadkarni 21 consecutive maiden overs against England in Chennai in a test match in 1963-64. Nadkarni out of a total of 29 overs, bowled 26 maiden overs. Out of those 26 maidens, 21 were bowled consecutively. Now that is serious consistency!