Robert Walker has spent over 40 years working through the sportsbook industry, and his journey from The Stardust to founding A1 Risk Management Solutions tells the story of how bookmaking transformed from intuition and paper slips to algorithmic precision and real-time data feeds.

The Art of Not Giving Away Value

Walker’s career began in 1986 with Boyd Gaming, a time when information moved slowly and the markets themselves were far narrower than what bettors enjoy today. Back then, managing a sportsbook required equal parts mathematics and instinct, and the mystique worked to management’s advantage.

“Back when we were doing it, people thought it was a science and an art,” Walker explained in an interview. “As long as the executives didn’t know what you actually did, they’d keep paying you well. Really, we were just trying to stay on the right number. But when they think it’s an art, you get to be the artist.”

That philosophy still holds weight. Walker distils the essence of bookmaking into a single principle that transcends eras: never give away value. Before the term “positive EV” entered the lexicon, this meant opening at the consensus number with the knowledge that the general public leans toward favourites and over bets. If you’re splitting hairs between 6.5 and 6, you open at 6.5.

The Stardust Era and Manual Line-Making

When Walker joined The Stardust in 1991, it was already Las Vegas’s de facto market maker. Opening lines originated there, and the process was labour-intensive by modern standards. Walker employed seven different lines including contributions from legendary oddsmaker Roxy Roxborough and handicapper Kenny White.

“Mine was by far the worst of the numbers,” Walker admitted. The team would hit the median rather than the average, deliberately staying close to Roxborough’s central number to avoid letting a single weak line skew the opening. This methodology served the book for years. It reflected an era when line-making was as much craft as calculation.

The Digital Pivot

Everything shifted when Walker moved to MGM Mirage in 1996. Don Best’s platform suddenly gave his team real-time visibility into what competitors were offering. More significantly, offshore lines from Pinnacle and 5 Dimes became accessible, and Walker made an immediate strategic call: use offshore numbers exclusively.

Nevada sportsbooks suddenly became irrelevant to the opening line process. As Walker puts it plainly, if everyone else is at 3, you’re not opening at 4. The Stardust’s role as the market leader effectively ended, though the operation could adjust numbers once visibility made positioning clear.

Then and Now

Today, Walker serves as a principal at A1 Risk Management Solutions alongside Farrell Drodz and Hall of Famer Vic Salerno, providing risk mitigation and platform management for retail sportsbooks. The modern bookmaker’s job looks fundamentally different from his early days.

“Night and day,” Walker describes the contrast without criticism. Younger operators grew up with automated data feeds rather than paper-based markets. Their role is ensuring the feed runs cleanly and numbers reflect reality, not interpreting soft market information or reading bettor patterns to position themselves strategically.

The artistry hasn’t disappeared entirely from bookmaking, but it’s migrated upstream to those designing algorithms and managing infrastructure. For operational staff, the mystique is gone. What remains is technical competence and the discipline to avoid value leakage. A principle Walker proved transcends any era.