A goal may be unassisted, or have one assist; some systems allow for two assists. Tool-assisted speedruns are timed in a distinct category from unassisted runs, for reasons of fairness. He recorded 38 tackles, including 28 unassisted. These differences also lead to different expectations from tool-assisted and unassisted speedruns. He drops his crutches and begins to walk unassisted. Two unassisted triple plays were turned at Forbes Field. He had 251 career tackles, 143 unassisted. Astasia refers to the inability to stand upright unassisted. Jackson ended his college career with 290 tackles, 166 of them unassisted. In January 2010, she finished the first unassisted and unsupported crossing of Antarctica. Unassisted birth of healthy puppies is normal. The submarine sustained extensive sail damage, returning to port unassisted. It was able to take off and land unassisted on conventional runways. Patients who have had an endoscopy without sedation are able to leave unassisted. They completed the route unassisted in 58 days.