diff --git a/lib/jasmine-core/boot.js b/lib/jasmine-core/boot.js
index 72f45b5e..4655042c 100644
--- a/lib/jasmine-core/boot.js
+++ b/lib/jasmine-core/boot.js
@@ -1,5 +1,5 @@
 /*
-Copyright (c) 2008-2017 Pivotal Labs
+Copyright (c) 2008-2018 Pivotal Labs
 
 Permission is hereby granted, free of charge, to any person obtaining
 a copy of this software and associated documentation files (the
diff --git a/lib/jasmine-core/jasmine-html.js b/lib/jasmine-core/jasmine-html.js
index 50de0be7..f682bbdb 100644
--- a/lib/jasmine-core/jasmine-html.js
+++ b/lib/jasmine-core/jasmine-html.js
@@ -1,5 +1,5 @@
 /*
-Copyright (c) 2008-2017 Pivotal Labs
+Copyright (c) 2008-2018 Pivotal Labs
 
 Permission is hereby granted, free of charge, to any person obtaining
 a copy of this software and associated documentation files (the
diff --git a/lib/jasmine-core/jasmine.js b/lib/jasmine-core/jasmine.js
index 9b7290fa..26de0a3f 100644
--- a/lib/jasmine-core/jasmine.js
+++ b/lib/jasmine-core/jasmine.js
@@ -4916,6 +4916,19 @@ getJasmineRequireObj().interface = function(jasmine, env) {
     return env.createSpyObj(baseName, methodNames);
   };
 
+  /**
+   * Add a custom spy strategy for the current scope of specs.
+   *
+   * _Note:_ This is only callable from within a {@link beforeEach}, {@link it}, or {@link beforeAll}.
+   * @name jasmine.addSpyStrategy
+   * @function
+   * @param {String} name - The name of the strategy (i.e. what you call from `and`)
+   * @param {Function} factory - Factory function that returns the plan to be executed.
+   */
+  jasmine.addSpyStrategy = function(name, factory) {
+    return env.addSpyStrategy(identifier, factory);
+  };
+
   return jasmineInterface;
 };
 
@@ -5091,18 +5104,18 @@ getJasmineRequireObj().SpyFactory = function(j$) {
     this.createSpy = function(name, originalFn) {
       return j$.Spy(name, originalFn, getCustomStrategies());
     };
-  
+
     this.createSpyObj = function(baseName, methodNames) {
       var baseNameIsCollection = j$.isObject_(baseName) || j$.isArray_(baseName);
-  
+
       if (baseNameIsCollection && j$.util.isUndefined(methodNames)) {
         methodNames = baseName;
         baseName = 'unknown';
       }
-   
+
       var obj = {};
       var spiesWereSet = false;
-   
+
       if (j$.isArray_(methodNames)) {
         for (var i = 0; i < methodNames.length; i++) {
           obj[methodNames[i]] = self.createSpy(baseName + '.' + methodNames[i]);
@@ -5117,11 +5130,11 @@ getJasmineRequireObj().SpyFactory = function(j$) {
           }
         }
       }
-   
+
       if (!spiesWereSet) {
         throw 'createSpyObj requires a non-empty array or object of method names to create spies for';
       }
-   
+
       return obj;
     };
   }
@@ -5284,20 +5297,24 @@ getJasmineRequireObj().SpyStrategy = function(j$) {
     var k, cs = options.customStrategies || {};
     for (k in cs) {
       if (j$.util.has(cs, k) && !this[k]) {
-        this[k] = function() {
-          var plan = cs[k].apply(null, arguments);
-
-          if (!j$.isFunction_(plan)) {
-            throw new Error('Spy strategy must return a function');
-          }
-
-          this.plan = plan;
-          return this.getSpy();
-        };
+        this[k] = createCustomPlan(cs[k]);
       }
     }
   }
 
+  function createCustomPlan(factory) {
+    return function() {
+      var plan = factory.apply(null, arguments);
+
+      if (!j$.isFunction_(plan)) {
+        throw new Error('Spy strategy must return a function');
+      }
+
+      this.plan = plan;
+      return this.getSpy();
+    };
+  }
+
   /**
    * Execute the current spy strategy.
    * @name SpyStrategy#exec
diff --git a/lib/jasmine-core/node_boot.js b/lib/jasmine-core/node_boot.js
index ce90a3ba..2b2d7adf 100644
--- a/lib/jasmine-core/node_boot.js
+++ b/lib/jasmine-core/node_boot.js
@@ -1,5 +1,5 @@
 /*
-Copyright (c) 2008-2017 Pivotal Labs
+Copyright (c) 2008-2018 Pivotal Labs
 
 Permission is hereby granted, free of charge, to any person obtaining
 a copy of this software and associated documentation files (the
diff --git a/spec/core/integration/CustomSpyStrategiesSpec.js b/spec/core/integration/CustomSpyStrategiesSpec.js
index 59e3b380..ba82362b 100644
--- a/spec/core/integration/CustomSpyStrategiesSpec.js
+++ b/spec/core/integration/CustomSpyStrategiesSpec.js
@@ -95,4 +95,44 @@ describe('Custom Spy Strategies (Integration)', function() {
     env.addReporter({ jasmineDone: jasmineDone });
     env.execute();
   });
+
+  it('allows multiple custom strategies to be used', function(done) {
+    var plan1 = jasmine.createSpy('plan 1').and.returnValue(42),
+      strategy1 = jasmine.createSpy('strat 1').and.returnValue(plan1),
+      plan2 = jasmine.createSpy('plan 2').and.returnValue(24),
+      strategy2 = jasmine.createSpy('strat 2').and.returnValue(plan2),
+      specDone = jasmine.createSpy('specDone');
+
+    env.beforeEach(function() {
+      env.addSpyStrategy('frobnicate', strategy1);
+      env.addSpyStrategy('jiggle', strategy2);
+    });
+
+    env.it('frobnicates', function() {
+      plan1.calls.reset();
+      plan2.calls.reset();
+      var spy = env.createSpy('spy').and.frobnicate();
+      expect(spy()).toEqual(42);
+      expect(plan1).toHaveBeenCalled();
+      expect(plan2).not.toHaveBeenCalled();
+    });
+
+    env.it('jiggles', function() {
+      plan1.calls.reset();
+      plan2.calls.reset();
+      var spy = env.createSpy('spy').and.jiggle();
+      expect(spy()).toEqual(24);
+      expect(plan1).not.toHaveBeenCalled();
+      expect(plan2).toHaveBeenCalled();
+    });
+
+    function jasmineDone(result) {
+      expect(result.overallStatus).toEqual('passed');
+      expect(specDone.calls.count()).toBe(2);
+      done();
+    }
+
+    env.addReporter({ jasmineDone: jasmineDone, specDone: specDone });
+    env.execute();
+  });
 });
diff --git a/src/core/SpyFactory.js b/src/core/SpyFactory.js
index 5d54f9df..d4821321 100644
--- a/src/core/SpyFactory.js
+++ b/src/core/SpyFactory.js
@@ -6,18 +6,18 @@ getJasmineRequireObj().SpyFactory = function(j$) {
     this.createSpy = function(name, originalFn) {
       return j$.Spy(name, originalFn, getCustomStrategies());
     };
-  
+
     this.createSpyObj = function(baseName, methodNames) {
       var baseNameIsCollection = j$.isObject_(baseName) || j$.isArray_(baseName);
-  
+
       if (baseNameIsCollection && j$.util.isUndefined(methodNames)) {
         methodNames = baseName;
         baseName = 'unknown';
       }
-   
+
       var obj = {};
       var spiesWereSet = false;
-   
+
       if (j$.isArray_(methodNames)) {
         for (var i = 0; i < methodNames.length; i++) {
           obj[methodNames[i]] = self.createSpy(baseName + '.' + methodNames[i]);
@@ -32,11 +32,11 @@ getJasmineRequireObj().SpyFactory = function(j$) {
           }
         }
       }
-   
+
       if (!spiesWereSet) {
         throw 'createSpyObj requires a non-empty array or object of method names to create spies for';
       }
-   
+
       return obj;
     };
   }
diff --git a/src/core/SpyStrategy.js b/src/core/SpyStrategy.js
index 6563beb7..ae5d4451 100644
--- a/src/core/SpyStrategy.js
+++ b/src/core/SpyStrategy.js
@@ -20,20 +20,24 @@ getJasmineRequireObj().SpyStrategy = function(j$) {
     var k, cs = options.customStrategies || {};
     for (k in cs) {
       if (j$.util.has(cs, k) && !this[k]) {
-        this[k] = function() {
-          var plan = cs[k].apply(null, arguments);
-
-          if (!j$.isFunction_(plan)) {
-            throw new Error('Spy strategy must return a function');
-          }
-
-          this.plan = plan;
-          return this.getSpy();
-        };
+        this[k] = createCustomPlan(cs[k]);
       }
     }
   }
 
+  function createCustomPlan(factory) {
+    return function() {
+      var plan = factory.apply(null, arguments);
+
+      if (!j$.isFunction_(plan)) {
+        throw new Error('Spy strategy must return a function');
+      }
+
+      this.plan = plan;
+      return this.getSpy();
+    };
+  }
+
   /**
    * Execute the current spy strategy.
    * @name SpyStrategy#exec
diff --git a/src/core/requireInterface.js b/src/core/requireInterface.js
index ac0279d7..52505ecd 100644
--- a/src/core/requireInterface.js
+++ b/src/core/requireInterface.js
@@ -280,5 +280,18 @@ getJasmineRequireObj().interface = function(jasmine, env) {
     return env.createSpyObj(baseName, methodNames);
   };
 
+  /**
+   * Add a custom spy strategy for the current scope of specs.
+   *
+   * _Note:_ This is only callable from within a {@link beforeEach}, {@link it}, or {@link beforeAll}.
+   * @name jasmine.addSpyStrategy
+   * @function
+   * @param {String} name - The name of the strategy (i.e. what you call from `and`)
+   * @param {Function} factory - Factory function that returns the plan to be executed.
+   */
+  jasmine.addSpyStrategy = function(name, factory) {
+    return env.addSpyStrategy(identifier, factory);
+  };
+
   return jasmineInterface;
 };