Decision
PER CURIAM:
1 Robert Johnson seeks judicial review of a decision of the Workforce Appeals Board (the Board) denying him unemployment benefits because he voluntarily quit his job without good cause. See Utah Code Ann. § 85A 4-405(1)(a) (LexisNexis Supp.2012). To establish good cause, a claimant must show that continuing the employment would have caused an adverse effect which the claimant could not control or prevent and that an immediate severance of the employment relationship was necessary. Utah Admin. Code R994-405-102. Johnson did not file a response to our sua sponte motion for summary disposition. We do not disturb the Boards decision.
T2 In the petition for review, Johnson claimed that the employer terminated his employment and that the employer lied about the cireumstances in a telephonic hearing before an Administrative Law Judge (ALJ). Johnson also claimed that he was harassed and criticized unfairly by the employer. The ALJ found the employers testimony more credible and reliable than Johnsons testimony. The Board found no error in the ALJs determination that the employer was the more credible witness. On Johnsons last day of work, the employer gave him specific instructions about how to cut a piece of metal. Johnson did not cut the metal as instructed. When the employer saw that the metal was not cut per the instructions, he asked Johnson what he was thinking. Johnson became upset and told the employer he was going to leave. The employer responded by telling Johnson that maybe he should leave. Johnson left work and did not return. The employer testified that he would not have terminated Johnson because he was needed to complete the job.
3 The Board concluded that Johnson was the moving party in the separation and that he voluntarily quit his employment without good cause. Johnson did not demonstrate that he would suffer an adverse effect from his continued employment that was so serious that it outweighed the benefits of remaining employed. The Board also found no mitigating cireumstances that would cause the denial of benefits to be unduly harsh or contrary to equity or good conscience.
I 4 We disturb the Boards findings of fact only if the findings are not supported by substantial evidence when viewed in light of the whole record before the court. Utah Code Ann. § 68G-4-408(4)(g) (LexisNexis 2011). It is not our role to judge the relative credibility of witnesses. Albertsons, Inc. v. Department of Emp. Sec., 854 P.2d 570, 575 (Utah Ct.App.1993); see also Prosper Team, Inc. v. Department of Workforce Servs., 2011 UT App 246, ¶10, 262 P.3d 462 (deferring to the Boards advantaged position to assess the claimants credibility). We will not disturb the Boards application of the law to the facts as long as it is within the realm of reasonableness and rationality. EAGALA, Inc. v. Department of Workforce Servs., 2007 UT App 43, ¶9, 157 P.3d 334 (citation and internal quotation marks omitted).
15 The Boards factual findings are supported by substantial evidence in the record as a whole, and the Boards determinations that Johnson quit his employment without good cause and he did not demonstrate that a denial of benefits was contrary to equity and good conscience are both reasonable and rational. Accordingly, we do not disturb the Boards decision.