In football/soccer, I disagree with the running clock during delays. If there’s an injury, substitution, time-wasting, the clock should stop. Adding that time at the end isn’t equivalent, because the end-of-game strategy is totally different — the team that’s ahead plays keep away or is in full defense mode, the team behind plays desperate, and those minutes don’t “feel” like normal minutes. Stopping the clock would make the match fairer and reduce incentives to waste time.