Former Premier League goalkeeper Cech – a technical advisor at Chelsea after he left Arsenal at the end of last season – officially signed for Guildford on Thursday (AEST).
The 37-year-old made his debut on the ice on Monday (AEST), starting in net for Guildford against the Wildcats and, ultimately, proved decisive in clinching the victory.
Cech had little to do until the Wildcats struck to make it 1-1 after host Guildford had gone ahead, with the visiting side then taking a 2-1 lead.
The Phoenix hit back to force overtime and penalties, with Cech coming out on top in the shoot-out.
Swindon's penalty taker attempted to thread a low shot under the ex-Chelsea star, but Cech displayed plenty of experience, albeit from a different sport, to stand his ground and make an instinctive, match-winning stop with his pads.