Rubuta ci gaba don wannan sakin layi - A cikin 1918/19, Foyston ya zira kwallaye 15 a wasanni 18 na kakar wasa, da kwallaye uku a wasanni biyu na wasan kwaikwayo, yayin da Seattle ta ci gaba zuwa 1919 Stanley Cup Finals
a kan 'yan Kanada. Foyston ya zira kwallaye tara a wasanni biyar kafin a dakatar da jerin (tare da kungiyoyin sun daidaita a 2-2 a cikin mafi kyawun jerin jerin biyar) saboda annobar mura. Ba a ba da Stanley Cup a wannan shekara ba. A kakar wasa ta gaba, a 1919<unk>20, Foyston ya zira kwallaye 26 a wasanni 22 na kakar wasa, da kwallaye uku a wasanni biyu na wasan kwaikwayo, yayin da Seattle ta ci gaba zuwa gasar cin kofin Stanley ta 1920. A wasan karshe, ya ci kwallaye shida a wasanni biyar.