Septemvri Sofia suffered a 2-0 home defeat to city rivals Lokomotiv Sofia in the Bulgarian First League on May 21, 2025. The match, which kicked off in the early hours at 01:15, saw the away side secure a convincing victory with two second-half goals. Lokomotiv Sofia took control of the midfield early and created the better chances, but the match remained goalless until after the break when a defensive error from Septemvri allowed Lokomotiv to break the deadlock. The second goal came late in the game, a clinical counter-attack that sealed all three points for the visitors. This derby loss was a significant blow for Septemvri Sofia's league position, denting their hopes for a top-half finish, while Lokomotiv Sofia's victory provided a crucial boost in their own campaign. The home manager likely lamented his team's lack of concentration, while the Lokomotiv coach praised his side's disciplined performance. The starting XIs featured the usual key players for both Sofia-based clubs in a match that highlighted the competitive nature of the Bulgarian top flight.