“Stand to your timber,” a resonant voice booms over the loudspeaker. “3, 2, 1, GO!” Axes swing overhead, then crash into logs between each athlete’s feet. Whoever breaks the wood in half first wins. American Erin LaVoie and Canadian Stephanie Naud are chop-for-chop not only in this event, but the entire STIHL Timbersports International Women’s Cup.