Relevant for actual travel planning with long-distance trains in Germany.
"Punctuality of Deutsche Bahn's long-distance services reached another low point in October. Only 51.5 % of trains were less than six minutes late. Deutsche Bahn confirmed this in a report in the “Süddeutsche Zeitung”. The reasons for this are the poor condition of the rail infrastructure and the many roadworks that result from it.
In addition, there were short-term disruptions to points or overhead lines as well as external factors such as severe weather. “Train congestion quickly affects the entire network and impacts punctuality nationwide,” the newspaper quoted a DB spokesperson as saying." (source)
Info: in Feb 2025 this value was 66.3%. Roughly this means that 2 of 3 trains were on time (max. + 6 mins) 10 months ago and this is now down to nearly only every 2nd train (source).
Important to know: Not included in these numbers are canceled train connections.