diff --git a/README.md b/README.md
index 46a83c6..c28f906 100644
--- a/README.md
+++ b/README.md
@@ -82,7 +82,7 @@ match.addPlayers(
   new Player('3', 800)
 )
 
-const results = match.calculate(['1', '2', '3'])
+const results = match.calculate('1', '2', '3')
 
 /*
   [
@@ -164,7 +164,7 @@ team2.addPlayers(new Player('3', 800), new Player('4', 700))
 team3.addPlayers(new Player('5', 600), new Player('6', 500))
 match.addTeams(team1, team2, team3)
 
-const results = match.calculate(['1', '2', '3'])
+const results = match.calculate('1', '2', '3')
 
 /*
   [
@@ -291,7 +291,7 @@ new FreeForAll(options?: Options)
 static create(options?: Options, ...players: Player[]): FreeForAll
 addPlayer(player: Player): this
 addPlayers(...players: Player[]): this
-calculate(playerIds: string[]): PlayerResult[]
+calculate(...playerIds: string[]): PlayerResult[]
 getResults(): PlayerResult[]
 ```
 
@@ -345,7 +345,7 @@ new TeamFreeForAll(options?: Options)
 static create(options?: Options, ...teams: Team[]): TeamFreeForAll
 addTeam(team: Team): this
 addTeams(...teams: Team[]): this
-calculate(teamIds: string[]): TeamResult[]
+calculate(...teamIds: string[]): TeamResult[]
 getResults(): TeamResult[]
 ```
 
diff --git a/src/main/matches/free-for-all/index.test.ts b/src/main/matches/free-for-all/index.test.ts
index 41d1be1..bc99eca 100644
--- a/src/main/matches/free-for-all/index.test.ts
+++ b/src/main/matches/free-for-all/index.test.ts
@@ -26,7 +26,7 @@ describe('FreeForAll', () => {
 
     match.addPlayers(player1, player2)
 
-    const results = match.calculate(['1', '2'])
+    const results = match.calculate('1', '2')
 
     expect(results).toStrictEqual([
       {
@@ -47,7 +47,7 @@ describe('FreeForAll', () => {
 
     match.addPlayers(player1, player2)
 
-    const results = match.calculate(['2', '1'])
+    const results = match.calculate('2', '1')
 
     expect(results).toStrictEqual([
       {
@@ -69,7 +69,7 @@ describe('FreeForAll', () => {
 
     match.addPlayers(player1, player2, player3)
 
-    const results = match.calculate(['1', '2', '3'])
+    const results = match.calculate('1', '2', '3')
 
     expect(results).toStrictEqual([
       {
@@ -95,7 +95,7 @@ describe('FreeForAll', () => {
 
     match.addPlayers(player1, player2, player3)
 
-    const results = match.calculate(['2', '3', '1'])
+    const results = match.calculate('2', '3', '1')
 
     expect(results).toStrictEqual([
       {
@@ -121,7 +121,7 @@ describe('FreeForAll', () => {
 
     match.addPlayers(player1, player2, player3)
 
-    const results = match.calculate(['3', '2', '1'])
+    const results = match.calculate('3', '2', '1')
 
     expect(results).toStrictEqual([
       {
@@ -147,7 +147,7 @@ describe('FreeForAll', () => {
     }
 
     const results = match.calculate(
-      Array.from({ length: 100 }, (_, i) => (i + 1).toString())
+      ...Array.from({ length: 100 }, (_, i) => (i + 1).toString())
     )
 
     expect(results[0].elo).toBe(1016)
@@ -164,7 +164,7 @@ describe('FreeForAll', () => {
       const match = new FreeForAll({ minPlayers: 3 })
 
       match.addPlayers(player1, player2)
-      match.calculate(['1', '2'])
+      match.calculate('1', '2')
     }).toThrow(ErrorType.MIN_PLAYERS)
   })
 
@@ -175,7 +175,7 @@ describe('FreeForAll', () => {
       const match = new FreeForAll()
 
       match.addPlayers(player1, player2)
-      match.calculate(['1'])
+      match.calculate('1')
     }).toThrow(ErrorType.SIZE_MISMATCH)
   })
 })
diff --git a/src/main/matches/free-for-all/index.ts b/src/main/matches/free-for-all/index.ts
index faadb72..4b7a8b4 100644
--- a/src/main/matches/free-for-all/index.ts
+++ b/src/main/matches/free-for-all/index.ts
@@ -39,7 +39,7 @@ export class FreeForAll extends Match {
     return this
   }
 
-  calculate(playerIds: string[]): PlayerResult[] {
+  calculate(...playerIds: string[]): PlayerResult[] {
     if (this.completed) {
       throw new MatchError(ErrorType.MATCH_COMPLETE)
     }
diff --git a/src/main/matches/team-free-for-all/index.test.ts b/src/main/matches/team-free-for-all/index.test.ts
index c9b6f45..4a84c0a 100644
--- a/src/main/matches/team-free-for-all/index.test.ts
+++ b/src/main/matches/team-free-for-all/index.test.ts
@@ -40,7 +40,7 @@ describe('TeamFreeForAll', () => {
   })
 
   test('calculates elo for team 1 winning', () => {
-    const results = match.calculate(['1', '2', '3'])
+    const results = match.calculate('1', '2', '3')
     expect(results).toStrictEqual([
       {
         id: '1',
@@ -85,7 +85,7 @@ describe('TeamFreeForAll', () => {
   })
 
   test('calculates elo for team 2 winning', () => {
-    const results = match.calculate(['2', '1', '3'])
+    const results = match.calculate('2', '1', '3')
     expect(results).toStrictEqual([
       {
         id: '1',
@@ -130,7 +130,7 @@ describe('TeamFreeForAll', () => {
   })
 
   test('calculates elo for team 3 winning', () => {
-    const results = match.calculate(['3', '2', '1'])
+    const results = match.calculate('3', '2', '1')
     expect(results).toStrictEqual([
       {
         id: '1',
@@ -184,7 +184,7 @@ describe('TeamFreeForAll', () => {
       team2.addPlayer(new Player('2', 900))
 
       match.addTeams(team1, team2)
-      match.calculate(['1', '2'])
+      match.calculate('1', '2')
     }).toThrow(ErrorType.MIN_TEAMS)
   })
 
@@ -198,7 +198,7 @@ describe('TeamFreeForAll', () => {
       team2.addPlayer(new Player('2', 900))
 
       match.addTeams(team1, team2)
-      match.calculate(['1'])
+      match.calculate('1')
     }).toThrow(ErrorType.SIZE_MISMATCH)
   })
 })
diff --git a/src/main/matches/team-free-for-all/index.ts b/src/main/matches/team-free-for-all/index.ts
index 711f3d6..37cd12a 100644
--- a/src/main/matches/team-free-for-all/index.ts
+++ b/src/main/matches/team-free-for-all/index.ts
@@ -42,7 +42,7 @@ export class TeamFreeForAll extends Match {
     return this
   }
 
-  calculate(teamIds: string[]): TeamResult[] {
+  calculate(...teamIds: string[]): TeamResult[] {
     if (this.completed) {
       throw new MatchError(ErrorType.MATCH_COMPLETE)
     }