<Table> <Tr> <Th_colspan="2"> 2018 U.S. Figure Skating Championships </Th> </Tr> <Tr> <Th> Type: </Th> <Td> National Championship </Td> </Tr> <Tr> <Th> Date: </Th> <Td> December 29--January 8 </Td> </Tr> <Tr> <Th> Season: </Th> <Td> 2017--18 </Td> </Tr> <Tr> <Th> Location: </Th> <Td> San Jose, California </Td> </Tr> <Tr> <Th> Host: </Th> <Td> U.S. Figure Skating </Td> </Tr> <Tr> <Th> Venue: </Th> <Td> SAP Center </Td> </Tr> <Tr> <Th_colspan="2"> Champions </Th> </Tr> <Tr> <Td_colspan="2"> Men's singles: Nathan Chen (S) Camden Pulkinen (J) </Td> </Tr> <Tr> <Td_colspan="2"> Ladies' singles: Bradie Tennell (S) Alysa Liu (J) </Td> </Tr> <Tr> <Td_colspan="2"> Pair skating: Alexa Scimeca Knierim / Chris Knierim (S) Audrey Lu / Misha Mitrofanov (J) </Td> </Tr> <Tr> <Td_colspan="2"> Ice dancing: Madison Hubbell / Zachary Donohue (S) Christina Carreira / Anthony Ponomarenko (J) </Td> </Tr> <Tr> <Th_colspan="2"> Navigation </Th> </Tr> <Tr> <Td_colspan="2"> Previous: 2017 U.S. Championships </Td> </Tr> <Tr> <Td_colspan="2"> Next: 2019 U.S. Championships </Td> </Tr> </Table> <Tr> <Th_colspan="2"> 2018 U.S. Figure Skating Championships </Th> </Tr>

Who won the 2018 us figure skating championships
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