San Silvestre Ordizia is a New Year's Eve road race held in Ordizia, beginning at 18:30 as the town concludes the year. It serves as the 'Txato' Caballero Memorial and is a well-attended local race, not exclusively for elite athletes. Crowds gather annually to finish December with a run. The event attracts the largest number of participants among the San Silvestre races near Beasain, Lazkao, and neighboring towns, with its most recent classified field numbering 563 runners, the highest recorded since participation data began.
The advertised distance is 6.325 km, consisting of three laps around a town-centre circuit. The course keeps runners within the streets of Ordizia, lined by spectators who cheer from close proximity. This race concludes the local series of San Silvestres held within a few kilometers of each other. It possesses sufficient history to be approaching its fiftieth edition. Recent developments include the introduction of team participation and solidarity T-shirts designed by students from Ikastola Jakintza.