The lottery for the Ultra Trail de Mont Blanc just closed. It seems that all three races were undersubscribed. According to their recent news article. "50 places are still available for the UTMB; 200 for the CCC and 600 for the TDS. These places will be open for direct registration (without draw) and with the same conditions (qualifying races), on 19th January, at 20:00 (GMT)".
Qualifying races include HURT 100 mile and Miwok 100k.