Rivals is a matchup of two players centered around a stat category like points, goals, assists, yards, etc. Most Rivals will have an adjustment, for example, LeBron (+2.5) points vs Kevin Durant. This means that when grading the Rivals selection - if LeBron scored more than, equal to, or 2 points less than Durant, LeBron (+2.5) would be graded as a Win.
For Durant to win he would need to score 3 more points than LeBron. Some Rivals will not have an adjustment, for example, Alex Ovechkin vs Connor McDavid Goals. If neither of them scores, it would be graded as a tie and the Pick'em entry will go down a tier.
Lowest Score Wins Rivals: This applies when the scored stat is deemed as a "negative" stat. In these instances, the player with the lowest score is deemed the winner, and any adjustment associated with the rival is added to the favorite's score. For example, in a Viktor Hovland (+.5) strokes rival vs. Justin Thomas, if they both have 70 strokes in the round, Justin Thomas will be deemed the winner because Hovland will have .5 strokes added to his stroke total.