diff --git a/internal/domain/ennoblement.go b/internal/domain/ennoblement.go
index ecb572a..1af9765 100644
--- a/internal/domain/ennoblement.go
+++ b/internal/domain/ennoblement.go
@@ -4,7 +4,6 @@ import (
 	"fmt"
 	"math"
 	"slices"
-	"strings"
 	"time"
 )
 
@@ -231,23 +230,6 @@ const (
 	EnnoblementSortServerKeyDESC
 )
 
-func newEnnoblementSortFromString(s string) (EnnoblementSort, error) {
-	allowed := []EnnoblementSort{
-		EnnoblementSortCreatedAtASC,
-		EnnoblementSortCreatedAtDESC,
-	}
-
-	for _, a := range allowed {
-		if strings.EqualFold(a.String(), s) {
-			return a, nil
-		}
-	}
-
-	return 0, UnsupportedSortStringError{
-		Sort: s,
-	}
-}
-
 // IsInConflict returns true if two sorts can't be used together (e.g. EnnoblementSortIDASC and EnnoblementSortIDDESC).
 func (s EnnoblementSort) IsInConflict(s2 EnnoblementSort) bool {
 	ss := []EnnoblementSort{s, s2}
@@ -539,7 +521,11 @@ func (params *ListEnnoblementsParams) PrependSortString(sort []string) error {
 	toPrepend := make([]EnnoblementSort, 0, len(sort))
 
 	for i, s := range sort {
-		converted, err := newEnnoblementSortFromString(s)
+		converted, err := newSortFromString(
+			s,
+			EnnoblementSortCreatedAtASC,
+			EnnoblementSortCreatedAtDESC,
+		)
 		if err != nil {
 			return SliceElementValidationError{
 				Model: listEnnoblementsParamsModelName,
diff --git a/internal/domain/player.go b/internal/domain/player.go
index 42389a3..116dbeb 100644
--- a/internal/domain/player.go
+++ b/internal/domain/player.go
@@ -6,7 +6,6 @@ import (
 	"math"
 	"net/url"
 	"slices"
-	"strings"
 	"time"
 )
 
@@ -541,33 +540,6 @@ const (
 	PlayerSortDeletedAtDESC
 )
 
-func newPlayerSortFromString(s string) (PlayerSort, error) {
-	allowed := []PlayerSort{
-		PlayerSortODScoreAttASC,
-		PlayerSortODScoreAttDESC,
-		PlayerSortODScoreDefASC,
-		PlayerSortODScoreDefDESC,
-		PlayerSortODScoreSupASC,
-		PlayerSortODScoreSupDESC,
-		PlayerSortODScoreTotalASC,
-		PlayerSortODScoreTotalDESC,
-		PlayerSortPointsASC,
-		PlayerSortPointsDESC,
-		PlayerSortDeletedAtASC,
-		PlayerSortDeletedAtDESC,
-	}
-
-	for _, a := range allowed {
-		if strings.EqualFold(a.String(), s) {
-			return a, nil
-		}
-	}
-
-	return 0, UnsupportedSortStringError{
-		Sort: s,
-	}
-}
-
 // IsInConflict returns true if two sorts can't be used together (e.g. PlayerSortIDASC and PlayerSortIDDESC).
 func (s PlayerSort) IsInConflict(s2 PlayerSort) bool {
 	ss := []PlayerSort{s, s2}
@@ -991,7 +963,21 @@ func (params *ListPlayersParams) PrependSortString(sort []string) error {
 	toPrepend := make([]PlayerSort, 0, len(sort))
 
 	for i, s := range sort {
-		converted, err := newPlayerSortFromString(s)
+		converted, err := newSortFromString(
+			s,
+			PlayerSortODScoreAttASC,
+			PlayerSortODScoreAttDESC,
+			PlayerSortODScoreDefASC,
+			PlayerSortODScoreDefDESC,
+			PlayerSortODScoreSupASC,
+			PlayerSortODScoreSupDESC,
+			PlayerSortODScoreTotalASC,
+			PlayerSortODScoreTotalDESC,
+			PlayerSortPointsASC,
+			PlayerSortPointsDESC,
+			PlayerSortDeletedAtASC,
+			PlayerSortDeletedAtDESC,
+		)
 		if err != nil {
 			return SliceElementValidationError{
 				Model: listPlayersParamsModelName,
diff --git a/internal/domain/tribe.go b/internal/domain/tribe.go
index 521b761..2b06c83 100644
--- a/internal/domain/tribe.go
+++ b/internal/domain/tribe.go
@@ -6,7 +6,6 @@ import (
 	"math"
 	"net/url"
 	"slices"
-	"strings"
 	"time"
 )
 
@@ -469,33 +468,6 @@ const (
 	TribeSortDeletedAtDESC
 )
 
-func newTribeSortFromString(s string) (TribeSort, error) {
-	allowed := []TribeSort{
-		TribeSortODScoreAttASC,
-		TribeSortODScoreAttDESC,
-		TribeSortODScoreDefASC,
-		TribeSortODScoreDefDESC,
-		TribeSortODScoreTotalASC,
-		TribeSortODScoreTotalDESC,
-		TribeSortPointsASC,
-		TribeSortPointsDESC,
-		TribeSortDominanceASC,
-		TribeSortDominanceDESC,
-		TribeSortDeletedAtASC,
-		TribeSortDeletedAtDESC,
-	}
-
-	for _, a := range allowed {
-		if strings.EqualFold(a.String(), s) {
-			return a, nil
-		}
-	}
-
-	return 0, UnsupportedSortStringError{
-		Sort: s,
-	}
-}
-
 // IsInConflict returns true if two sorts can't be used together (e.g. TribeSortIDASC and TribeSortIDDESC).
 func (s TribeSort) IsInConflict(s2 TribeSort) bool {
 	ss := []TribeSort{s, s2}
@@ -878,7 +850,21 @@ func (params *ListTribesParams) PrependSortString(sort []string) error {
 	toPrepend := make([]TribeSort, 0, len(sort))
 
 	for i, s := range sort {
-		converted, err := newTribeSortFromString(s)
+		converted, err := newSortFromString(
+			s,
+			TribeSortODScoreAttASC,
+			TribeSortODScoreAttDESC,
+			TribeSortODScoreDefASC,
+			TribeSortODScoreDefDESC,
+			TribeSortODScoreTotalASC,
+			TribeSortODScoreTotalDESC,
+			TribeSortPointsASC,
+			TribeSortPointsDESC,
+			TribeSortDominanceASC,
+			TribeSortDominanceDESC,
+			TribeSortDeletedAtASC,
+			TribeSortDeletedAtDESC,
+		)
 		if err != nil {
 			return SliceElementValidationError{
 				Model: listTribesParamsModelName,
diff --git a/internal/domain/tribe_change.go b/internal/domain/tribe_change.go
index b658160..2447435 100644
--- a/internal/domain/tribe_change.go
+++ b/internal/domain/tribe_change.go
@@ -5,7 +5,6 @@ import (
 	"fmt"
 	"math"
 	"slices"
-	"strings"
 	"time"
 )
 
@@ -264,23 +263,6 @@ const (
 	TribeChangeSortServerKeyDESC
 )
 
-func newTribeChangeSortFromString(s string) (TribeChangeSort, error) {
-	allowed := []TribeChangeSort{
-		TribeChangeSortCreatedAtASC,
-		TribeChangeSortCreatedAtDESC,
-	}
-
-	for _, a := range allowed {
-		if strings.EqualFold(a.String(), s) {
-			return a, nil
-		}
-	}
-
-	return 0, UnsupportedSortStringError{
-		Sort: s,
-	}
-}
-
 // IsInConflict returns true if two sorts can't be used together (e.g. TribeChangeSortIDASC and TribeChangeSortIDDESC).
 func (s TribeChangeSort) IsInConflict(s2 TribeChangeSort) bool {
 	ss := []TribeChangeSort{s, s2}
@@ -592,7 +574,11 @@ func (params *ListTribeChangesParams) PrependSortString(sort []string) error {
 	toPrepend := make([]TribeChangeSort, 0, len(sort))
 
 	for i, s := range sort {
-		converted, err := newTribeChangeSortFromString(s)
+		converted, err := newSortFromString(
+			s,
+			TribeChangeSortCreatedAtASC,
+			TribeChangeSortCreatedAtDESC,
+		)
 		if err != nil {
 			return SliceElementValidationError{
 				Model: listTribeChangesParamsModelName,
diff --git a/internal/domain/utils.go b/internal/domain/utils.go
index 090e1c0..856e1dd 100644
--- a/internal/domain/utils.go
+++ b/internal/domain/utils.go
@@ -185,3 +185,17 @@ func (c decodedCursor) time(k string) (time.Time, error) {
 
 	return val, nil
 }
+
+func newSortFromString[T interface {
+	String() string
+}](s string, allowed ...T) (T, error) {
+	for _, a := range allowed {
+		if strings.EqualFold(a.String(), s) {
+			return a, nil
+		}
+	}
+	var zero T
+	return zero, UnsupportedSortStringError{
+		Sort: s,
+	}
+}