San Antonio Spurs Sign Tulsa's Miles Barnstable And Waive Jayden Nunn

The San Antonio Spurs have reshaped the back end of their roster ahead of training camp, signing former Tulsa standout guard Miles Barnstable while concurrently parting ways with Jayden Nunn.

Miles Barnstable enters the professional ranks after going undrafted in June, following a collegiate journey that spanned Division III UW-Whitewater, St. Thomas, and finally Tulsa. During his standout final college campaign, Barnstable averaged 14.6 points per game and set a program record with 103 made 3-pointers, earning Second Team All-American Conference and All-Newcomer Team honors. UW-Whitewater coach Jarod Wichser praised the guard's relentless dedication, noting via Sports Illustrated that there was nobody he had coached more committed to every aspect of the game. Barnstable previously joined the organization for Summer League action in July, appearing in five games across the California Classic in San Francisco and NBA Summer League 2026 in Las Vegas.

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Concurrently, the Spurs waived Jayden Nunn, whose initial camp deal lasted less than a week. According to Sports Illustrated, Nunn's brief stint was largely procedural. The former Baylor guard made the Austin roster through an open tryout last season, averaging 15.3 points, 3.3 rebounds, and 2.2 assists across 47 appearances while shooting 40.1 percent from beyond the arc. He also featured in seven Summer League games with San Antonio in July, averaging 3.9 points and two rebounds.

Both transactions highlight the strategic use of Exhibit 10 contracts across the league, mirroring minor roster adjustments seen elsewhere such as the Utah Jazz signing center Ibrahima Diallo and guard Justin Harmon, or the New Orleans Pelicans adding former Raptors guard Markquis Nowell on a training camp deal reported by Paul Garcia of The Spot Up Shot.

The reality facing both Barnstable and Nunn underscores the steep climb for undrafted and developmental prospects chasing a permanent home in professional basketball. With San Antonio's three two-way roster slots already locked down by David Jones Garcia, Ja'Kobi Gillespie, and Maliq Brown, standard roster spots remain fiercely competitive. Under their respective Exhibit 10 structures, players who clear waivers and commit to spending at least 60 days with the Austin Spurs can secure a bonus worth up to $91,000 on top of their base G League compensation.

The broader ecosystem of fringe roster management reflects similar pressures described by former UNLV and Iowa State standout Keshon Gilbert, who detailed the grueling, uncertain nature of pursuing an NBA career during Summer League play at the Thomas & Mack Center, as outlined in the Las Vegas Review-Journal.

What to Watch Next

• San Antonio's training camp opens next week at the Victory Capital Performance Center.
• Miles Barnstable will vie for a standard roster spot during camp evaluations.
• Jayden Nunn and Barnstable are anticipated to report to the Austin Spurs for the upcoming G League campaign.