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Mackenzie DuffnerTrack & Field Bio Hidden in search results 

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Season Records

100 Meters
2013 Outdoor912.94PR
2014 Outdoor1013.72
200 Meters
2013 Outdoor926.60PR
2014 Outdoor1027.63
100m Hurdles - 33"
2013 Outdoor915.90PR
2014 Outdoor1016.14
300m Hurdles - 30"
2013 Outdoor947.49PR
2014 Outdoor1047.51
2016 Outdoor Season 
Menlo HS12th Grade
2014 Outdoor Season 
Menlo HS10th Grade
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