diff --git a/sim/core/apl_values_runes.go b/sim/core/apl_values_runes.go
index 71cacc9f76..aa1ce0d164 100644
--- a/sim/core/apl_values_runes.go
+++ b/sim/core/apl_values_runes.go
@@ -193,11 +193,11 @@ func (value *APLValueNextRuneCooldown) GetDuration(sim *Simulation) time.Duratio
 	returnValue := time.Duration(0)
 	switch value.runeType {
 	case proto.APLValueRuneType_RuneBlood:
-		returnValue = value.unit.SpentBloodRuneReadyAt() - sim.CurrentTime
+		returnValue = value.unit.NextBloodRuneReadyAt(sim) - sim.CurrentTime
 	case proto.APLValueRuneType_RuneFrost:
-		returnValue = value.unit.SpentFrostRuneReadyAt() - sim.CurrentTime
+		returnValue = value.unit.NextFrostRuneReadyAt(sim) - sim.CurrentTime
 	case proto.APLValueRuneType_RuneUnholy:
-		returnValue = value.unit.SpentUnholyRuneReadyAt() - sim.CurrentTime
+		returnValue = value.unit.NextUnholyRuneReadyAt(sim) - sim.CurrentTime
 	}
 	return MaxDuration(0, returnValue)
 }
diff --git a/sim/core/runic_power.go b/sim/core/runic_power.go
index ba8626eca6..4dff354435 100644
--- a/sim/core/runic_power.go
+++ b/sim/core/runic_power.go
@@ -431,6 +431,30 @@ func (rp *RunicPowerBar) UnholyRuneReadyAt(sim *Simulation) time.Duration {
 	return MinDuration(rp.runeMeta[4].regenAt, rp.runeMeta[5].regenAt)
 }
 
+func (rp *RunicPowerBar) NextRuneTypeReadyAt(sim *Simulation, left int8, right int8) time.Duration {
+	if rp.runeStates&isSpents[left] != isSpents[left] && rp.runeStates&isSpents[right] != isSpents[right] {
+		// Both are ready so return current time
+		return sim.CurrentTime
+	} else if rp.runeStates&isSpents[left] == isSpents[left] || rp.runeStates&isSpents[right] == isSpents[right] {
+		// One is spent so return the time it will regen at
+		return MinDuration(rp.runeMeta[left].regenAt, rp.runeMeta[right].regenAt)
+	}
+	// Both are spent so return the last one to regen at
+	return MaxDuration(rp.runeMeta[left].regenAt, rp.runeMeta[right].regenAt)
+}
+
+func (rp *RunicPowerBar) NextBloodRuneReadyAt(sim *Simulation) time.Duration {
+	return rp.NextRuneTypeReadyAt(sim, 0, 1)
+}
+
+func (rp *RunicPowerBar) NextFrostRuneReadyAt(sim *Simulation) time.Duration {
+	return rp.NextRuneTypeReadyAt(sim, 2, 3)
+}
+
+func (rp *RunicPowerBar) NextUnholyRuneReadyAt(sim *Simulation) time.Duration {
+	return rp.NextRuneTypeReadyAt(sim, 4, 5)
+}
+
 // AnySpentRuneReadyAt returns the next time that a rune will regenerate.
 //
 //	It will be NeverExpires if there is no rune pending regeneration.