Fifty wickets in a first-class season at an average under 10

The following players have taken 50 wickets in a first-class season in one country at an average below 10 since 1900. Note that it was quite common in the lower scoring days of the 19thh century.

Name	Ctry	M	Balls	Runs	Wkts	Avg	BB	5I	Season
ST Callaway	NZ	5	1349	474	54	8.77	8-33	8	1903/04
RK Oxenham	Ind	11	1821	555	75	7.40	7-13	8	1935/36
VAP van der Bijl	SA	8	1746	513	54	9.50	6-30	3	1980/81
NO Miller	WI	7	1465	419	52	8.05	7-13	6	2012/13