diff --git a/docker/structure.sql b/docker/structure.sql
index f4ee4d2ae..411c0436a 100644
--- a/docker/structure.sql
+++ b/docker/structure.sql
@@ -322,6 +322,23 @@ CREATE TRIGGER categories_moddatetime
     EXECUTE PROCEDURE moddatetime (updated_at);
 
 
+CREATE TABLE micro_phases (
+    id SERIAL PRIMARY KEY,
+    run_id uuid NOT NULL REFERENCES runs(id) ON DELETE CASCADE ON UPDATE CASCADE,
+    name text NOT NULL,
+    start_time bigint NOT NULL,
+    end_time bigint NOT NULL,
+    created_at timestamp with time zone DEFAULT now(),
+    updated_at timestamp with time zone
+);
+
+CREATE INDEX "micro_phases_run_id" ON "micro_phases" USING HASH ("run_id");
+CREATE TRIGGER micro_phases_moddatetime
+    BEFORE UPDATE ON micro_phases
+    FOR EACH ROW
+    EXECUTE PROCEDURE moddatetime (updated_at);
+
+
 CREATE TABLE phase_stats (
     id SERIAL PRIMARY KEY,
     run_id uuid NOT NULL REFERENCES runs(id) ON DELETE CASCADE ON UPDATE CASCADE,
diff --git a/lib/scenario_runner.py b/lib/scenario_runner.py
index c450100ad..1b803173b 100644
--- a/lib/scenario_runner.py
+++ b/lib/scenario_runner.py
@@ -1517,6 +1517,7 @@ def _run_flows(self):
                             'read-notes-stdout': cmd_obj.get('read-notes-stdout', False),
                             'ignore-errors': cmd_obj.get('ignore-errors', False),
                             'read-sci-stdout': cmd_obj.get('read-sci-stdout', False),
+                            'sub-phase-expansion-pattern': cmd_obj.get('sub-phase-expansion-pattern', None),
                             'detail_name': flow['container'],
                             'detach': cmd_obj.get('detach', False),
                         })
@@ -1656,6 +1657,13 @@ def _read_and_cleanup_processes(self):
                     for match in re.findall(r'^GMT_SCI_R=(\d+)$', stdout, re.MULTILINE):
                         self._sci['R'] += int(match)
 
+                if ps.get('sub-phase-expansion-pattern', None):
+                    print('Pattern is', ps['sub-phase-expansion-pattern'])
+
+                    for match in re.finditer(ps['sub-phase-expansion-pattern'], stdout, re.MULTILINE):
+                        self.__phases[match['phase_name']] = {'start': int(match['start_time']), 'name': match['phase_name'], 'end': int(match['end_time']) }
+                        DB().query("INSERT INTO micro_phases (run_id, name, start_time, end_time) VALUES (%s, %s, %s, %s)", (self._run_id, match['phase_name'], match['start_time'], match['end_time']))
+
             if stderr is not None:
                 print('stderr from process:', ps['cmd'], stderr)
                 self._add_to_current_run_log(f"{ps['container_name']} (ID: {id(ps['ps'])}; CMD: {ps['cmd']}); STDERR", stderr)
diff --git a/lib/schema_checker.py b/lib/schema_checker.py
index 599658589..45e94c9e4 100644
--- a/lib/schema_checker.py
+++ b/lib/schema_checker.py
@@ -187,6 +187,7 @@ def check_usage_scenario(self, usage_scenario):
                     Optional("shell"): And(str, Use(self.not_empty)),
                     Optional("log-stdout"): bool,
                     Optional("log-stderr"): bool,
+                    Optional("sub-phase-expansion-pattern"): And(str, Use(self.not_empty)),
                 }],
 
             }],