About John
John has worked in and around the betting industry for over a decade — first as a trader on the racing desk of an Irish-licensed bookmaker, and more recently as an independent betting-tools reviewer and instructor.
Areas of expertise
- System bets (Lucky 15/31/63, Yankee, Heinz and Goliath) — settling, bonuses and edge cases.
- Matched betting and arbitrage maths.
- Each-way terms and place-fraction conventions across UK and Irish bookmakers.
- Kelly Criterion and bankroll management for value bettors.
How John reviews our pages
John reviews every calculator before launch against three independent settlement sources. He re-reviews each page at least once a year — and within seven days of any rule change at the major Irish bookmakers.
Contact
You can reach John via our contact page — mention his name in the subject and we will pass it on.