Many excellent submissions have been recorded over the past six months, but Ronda Rousey remains the only undisputed UFC champion to score a submission win in 2013.
By continuing her amazing streak of armbar victories against Liz Carmouche in February, Rousey ensured she'd be in the running for Submission of the Year by the time 2013 comes to an end. However, she'll only have one more opportunity to top herself before the calendars are flipped to a new year. As a coach on TUF 18, Rousey has been on the shelf and is preparing for a December rematch with Miesha Tate.
Between now and Rousey's second UFC title defense, several submissions are likely to join the race for Submission of the Year. For now, though, these are the leaders at the midway point of 2013.