Kammala jumla mai zuwa: Pennel ya lashe 2014 Twin Cities Marathon a farkonsa na marathon. Daga nan sai ya yi gasa a
2014 IAAF Gasar Rabin Marathon ta Duniya inda ya gama na 33. A ranar 4 ga Yuni, 2015, Pennel ya fara gudu na farko a cikin minti hudu na kilomita a bikin Miles a St. Louis, inda ya gama na biyu a cikin 3: 58.99.