Why would you say it's so important?
Probably a couple of reasons:
- If you keep a record of your bets, preferably by sport, you will get a transparent view of what sports you are more successful in and on the flip side those that you are struggling in. It then gives you a chance to scale back or even eliminate betting on that sport going forward to it helps you focus on your strengths
- Its simply good practice - gives you an idea of your overall position and helps for those gamblers that set targets (like myself) whether it be on a daily/monthly/yearly basis of what return you want to achieve