diff --git a/include/openmc/event.h b/include/openmc/event.h
index 7a654b6af..ef6163d9a 100644
--- a/include/openmc/event.h
+++ b/include/openmc/event.h
@@ -73,6 +73,7 @@ extern int64_t max_particles_in_flight;
 void init_event_queues(int64_t n_particles);
 void free_event_queues(void);
 void dispatch_xs_event(int64_t i);
+void process_init_events(int64_t n_particles, int64_t source_offset);
 void process_calculate_xs_events(QueueItem* queue, int64_t n);
 void process_advance_particle_events();
 void process_surface_crossing_events();
diff --git a/include/openmc/timer.h b/include/openmc/timer.h
index b2d5f0005..cc20751a8 100644
--- a/include/openmc/timer.h
+++ b/include/openmc/timer.h
@@ -25,6 +25,12 @@ extern Timer time_sample_source;
 extern Timer time_tallies;
 extern Timer time_total;
 extern Timer time_transport;
+extern Timer time_event_init;
+extern Timer time_event_calculate_xs;
+extern Timer time_event_advance_particle;
+extern Timer time_event_surface_crossing;
+extern Timer time_event_collision;
+extern Timer time_event_death;
 
 } // namespace simulation
 
diff --git a/src/event.cpp b/src/event.cpp
index 9e4010070..a40f67152 100644
--- a/src/event.cpp
+++ b/src/event.cpp
@@ -1,5 +1,7 @@
 #include "openmc/event.h"
 #include "openmc/material.h"
+#include "openmc/simulation.h"
+#include "openmc/timer.h"
 
 namespace openmc {
 
@@ -80,10 +82,23 @@ void dispatch_xs_event(int64_t i)
   }
 }
 
+void process_init_events(int64_t n_particles, int64_t source_offset)
+{
+  simulation::time_event_init.start();
+  #pragma omp parallel for schedule(runtime)
+  for (int64_t i = 0; i < n_particles; i++) {
+    initialize_history(&simulation::particles[i], source_offset + i + 1);
+    dispatch_xs_event(i);
+  }
+  simulation::time_event_init.stop();
+}
+
 void process_calculate_xs_events(QueueItem* queue, int64_t n)
 {
-  // Sort queue by energy
-  std::sort(queue, queue+n);
+  simulation::time_event_calculate_xs.start();
+
+  // TODO: Sort queue by particle type, material type, and energy
+  //std::sort(queue, queue+n);
 
   // Save last_ members, find grid index
   #pragma omp parallel for schedule(runtime)
@@ -93,10 +108,14 @@ void process_calculate_xs_events(QueueItem* queue, int64_t n)
     enqueue_particle(simulation::advance_particle_queue.get(),
         simulation::advance_particle_queue_length, p, queue[i].idx, true);
   }
+
+  simulation::time_event_calculate_xs.stop();
 }
 
 void process_advance_particle_events()
 {
+  simulation::time_event_advance_particle.start();
+
   #pragma omp parallel for schedule(runtime)
   for (int64_t i = 0; i < simulation::advance_particle_queue_length; i++) {
     int64_t buffer_idx = simulation::advance_particle_queue[i].idx;
@@ -110,10 +129,14 @@ void process_advance_particle_events()
           simulation::collision_queue_length, p, buffer_idx, true);
     }
   }
+
+  simulation::time_event_advance_particle.stop();
 }
 
 void process_surface_crossing_events()
 {
+  simulation::time_event_surface_crossing.start();
+
   #pragma omp parallel for schedule(runtime)
   for (int64_t i = 0; i < simulation::surface_crossing_queue_length; i++) {
     int64_t buffer_index = simulation::surface_crossing_queue[i].idx;
@@ -123,11 +146,14 @@ void process_surface_crossing_events()
     if (p->alive_)
       dispatch_xs_event(buffer_index);
   }
-
+  
+  simulation::time_event_surface_crossing.stop();
 }
 
 void process_collision_events()
 {
+  simulation::time_event_collision.start();
+
   #pragma omp parallel for schedule(runtime)
   for (int64_t i = 0; i < simulation::collision_queue_length; i++) {
     int64_t buffer_index = simulation::collision_queue[i].idx;
@@ -138,15 +164,18 @@ void process_collision_events()
       dispatch_xs_event(buffer_index);
   }
 
+  simulation::time_event_collision.stop();
 }
 
 void process_death_events(int64_t n_particles)
 {
+  simulation::time_event_death.start();
   #pragma omp parallel for schedule(runtime)
   for (int64_t i = 0; i < n_particles; i++) {
     Particle* p = &simulation::particles[i];
     p->event_death();
   }
+  simulation::time_event_death.stop();
 }
 
 } // namespace openmc
diff --git a/src/output.cpp b/src/output.cpp
index ff66f7327..1911606ef 100644
--- a/src/output.cpp
+++ b/src/output.cpp
@@ -466,6 +466,12 @@ void print_runtime()
   show_time("Total time in simulation", time_inactive.elapsed() +
     time_active.elapsed());
   show_time("Time in transport only", time_transport.elapsed(), 1);
+  show_time("Event time: Init", time_event_init.elapsed(), 2);
+  show_time("Event time: XS Lookup", time_event_calculate_xs.elapsed(), 2);
+  show_time("Event time: Advance", time_event_advance_particle.elapsed(), 2);
+  show_time("Event time: Surface", time_event_surface_crossing.elapsed(), 2);
+  show_time("Event time: Collision", time_event_collision.elapsed(), 2);
+  show_time("Event time: Death", time_event_death.elapsed(), 2);
   if (settings::run_mode == RUN_MODE_EIGENVALUE) {
     show_time("Time in inactive batches", time_inactive.elapsed(), 1);
   }
diff --git a/src/simulation.cpp b/src/simulation.cpp
index b58f39739..91c013396 100644
--- a/src/simulation.cpp
+++ b/src/simulation.cpp
@@ -621,11 +621,7 @@ void transport_event_based()
     int64_t n_particles = std::min(remaining_work, simulation::max_particles_in_flight);
 
     // Initialize all particle histories for this subiteration
-    #pragma omp parallel for schedule(runtime)
-    for (auto i = 0; i < n_particles; i++) {
-      initialize_history(&simulation::particles[i], source_offset + i + 1);
-      dispatch_xs_event(i);
-    }
+    process_init_events(n_particles, source_offset);
 
     int events_retired = 0;
 
@@ -663,6 +659,7 @@ void transport_event_based()
       events_retired++;
     }
     
+    // Execute death events for all particles
     process_death_events(n_particles);
 
     remaining_work -= n_particles;
diff --git a/src/timer.cpp b/src/timer.cpp
index 616140aa9..fdb10f0f2 100644
--- a/src/timer.cpp
+++ b/src/timer.cpp
@@ -20,6 +20,12 @@ Timer time_sample_source;
 Timer time_tallies;
 Timer time_total;
 Timer time_transport;
+Timer time_event_init;
+Timer time_event_calculate_xs;
+Timer time_event_advance_particle;
+Timer time_event_surface_crossing;
+Timer time_event_collision;
+Timer time_event_death;
 
 } // namespace simulation
 
@@ -73,6 +79,12 @@ void reset_timers()
   simulation::time_tallies.reset();
   simulation::time_total.reset();
   simulation::time_transport.reset();
+  simulation::time_event_init.reset();
+  simulation::time_event_calculate_xs.reset();
+  simulation::time_event_advance_particle.reset();
+  simulation::time_event_surface_crossing.reset();
+  simulation::time_event_collision.reset();
+  simulation::time_event_death.reset();
 }
 
 } // namespace openmc