> Everything on marin headlands
Name | Distance | Host | Month | Ultrasignup linkie | |
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Steep Ravine | varies | CTR | Jan | [reg](http://www.ctronlinestore.com/index.php?app=ecom&ns=catshow&ref=steep_ravine&sid=9o7c5r0gty2iwxi20p1x7vikkk38ep14) | |
Golden Gate (Winter) | varies | CTR | Feb | [reg](http://www.ctronlinestore.com/index.php?app=ecom&ns=catshow&ref=golden_gate_wntr) | |
MUC | 50mile | ITR | Mar | [info](http://insidetrail.com/calendar/marin-ultra-challenge/) | |
Night Sweats Spring | varies | PCTR | Apr | [info](http://www.pctrailruns.com/event.aspx?dtid=10000) | |
miwok 100 | 100k | Tia Bodington | May | [info](http://miwok100k.com/site/) | |
SF50mile | 50mile | CTR | May | [reg](http://www.ctronlinestore.com/index.php?app=ecom&ns=catshow&ref=sf100) |