Rockingham Park Horsemen’s Bookkeeper Hours Race Days: 10:00 A.M. to Last Race of Day Thursdays: 10:00 A.M. – 2:00 P.M. Closed Mondays & Tuesdays – With the exception of Holiday Monday cards Contact: Sheila Ernst Phone: (603) 898-2311 Ext. 285-286 Fax: (603) 893-7284 For Purse Checks and Driver Checks, Fill out a W-9 Form.