diff --git a/rating/src/main/scala/glicko/impl/Rating.scala b/rating/src/main/scala/glicko/impl/Rating.scala
index 71d278e99..66c82e826 100644
--- a/rating/src/main/scala/glicko/impl/Rating.scala
+++ b/rating/src/main/scala/glicko/impl/Rating.scala
@@ -12,33 +12,33 @@ final private[glicko] class Rating(
   import RatingCalculator.*
 
   // the following variables are used to hold values temporarily whilst running calculations
-  private[glicko] var workingRating: Double          = scala.compiletime.uninitialized
-  private[glicko] var workingRatingDeviation: Double = scala.compiletime.uninitialized
-  private[glicko] var workingVolatility: Double      = scala.compiletime.uninitialized
+  private[impl] var workingRating: Double          = scala.compiletime.uninitialized
+  private[impl] var workingRatingDeviation: Double = scala.compiletime.uninitialized
+  private[impl] var workingVolatility: Double      = scala.compiletime.uninitialized
 
   /** Return the average skill value of the player scaled down to the scale used by the algorithm's internal
     * workings.
     */
-  def getGlicko2Rating: Double = convertRatingToGlicko2Scale(this.rating)
+  private[impl] def getGlicko2Rating: Double = convertRatingToGlicko2Scale(this.rating)
 
   /** Set the average skill value, taking in a value in Glicko2 scale.
     */
-  def setGlicko2Rating(r: Double) =
+  private[impl] def setGlicko2Rating(r: Double) =
     rating = convertRatingToOriginalGlickoScale(r)
 
   /** Return the rating deviation of the player scaled down to the scale used by the algorithm's internal
     * workings.
     */
-  def getGlicko2RatingDeviation: Double = convertRatingDeviationToGlicko2Scale(ratingDeviation)
+  private[impl] def getGlicko2RatingDeviation: Double = convertRatingDeviationToGlicko2Scale(ratingDeviation)
 
   /** Set the rating deviation, taking in a value in Glicko2 scale.
     */
-  def setGlicko2RatingDeviation(rd: Double) =
+  private[impl] def setGlicko2RatingDeviation(rd: Double) =
     ratingDeviation = convertRatingDeviationToOriginalGlickoScale(rd)
 
   /** Used by the calculation engine, to move interim calculations into their "proper" places.
     */
-  def finaliseRating() =
+  private[impl] def finaliseRating() =
     setGlicko2Rating(workingRating)
     setGlicko2RatingDeviation(workingRatingDeviation)
     volatility = workingVolatility
@@ -46,7 +46,7 @@ final private[glicko] class Rating(
     workingRating = 0d
     workingVolatility = 0d
 
-  override def toString = f"Rating($rating%1.2f, $ratingDeviation%1.2f, $volatility%1.2f, $numberOfResults)"
-
-  def incrementNumberOfResults(increment: Int) =
+  private[impl] def incrementNumberOfResults(increment: Int) =
     numberOfResults = numberOfResults + increment
+
+  override def toString = f"Rating($rating%1.2f, $ratingDeviation%1.2f, $volatility%1.2f, $numberOfResults)"
diff --git a/rating/src/main/scala/glicko/impl/RatingCalculator.scala b/rating/src/main/scala/glicko/impl/RatingCalculator.scala
index 7326f0788..331cfb494 100644
--- a/rating/src/main/scala/glicko/impl/RatingCalculator.scala
+++ b/rating/src/main/scala/glicko/impl/RatingCalculator.scala
@@ -85,7 +85,7 @@ final private[glicko] class RatingCalculator(
     * @param results
     * @param elapsedRatingPeriods
     */
-  def calculateNewRating(player: Rating, results: List[Result], elapsedRatingPeriods: Double): Unit =
+  private def calculateNewRating(player: Rating, results: List[Result], elapsedRatingPeriods: Double): Unit =
     val phi   = player.getGlicko2RatingDeviation
     val sigma = player.volatility
     val a     = Math.log(Math.pow(sigma, 2))