S.D. Codified Laws § 13-7-19.1
If a tie vote exists after the canvass of the original official returns, the school board making the canvass shall certify the vote to the business manager. The business manager shall then notify the candidates that if no request for recount is made in writing to the business manager within five days, the winner shall be determined by drawing of lots. If no recount request is made or a tie vote between candidates is found to exist on the basis of such recount, the business manager shall fix a time and place for the drawing of lots, giving reasonable notice of the time and place to each of the candidates involved in the tie vote. Drawing of lots shall be in the manner directed by the business manager and the certificate of election shall be issued to the candidate winning in the drawing of lots.
SDCL 13-7-19.1