Ringwalk: 9:00-10:00 PM ET / 6:00-7:00 PM PT; card starts earlier at 8:00 PM ET)
Venue: War Memorial Auditorium, Fort Lauderdale, Florida, USA
Broadcast: ProBox TV (live stream, part of season finale card headlined by Ramon Cardenas vs. Erik Robles)
Weight Class: Junior Welterweight (140 lbs, 10 rounds)
Connecticut’s “Marvelous” Mykquan Williams faces Mexico’s Jair “Kaiser” Valtierra in a compelling prospect-vs-emerging-contender matchup on ProBox TV’s year-end card. Williams, a highly-regarded technician returning to action, aims to rebuild momentum after mixed results, while the taller, younger Valtierra looks to score a career-defining upset against a name opponent. This bout adds depth to a stacked Florida card featuring international talent.
Fighter Records
Mykquan Williams (USA): 22-1-2 (11 KOs, ~44% KO rate)
Jair Valtierra (Mexico): 18-3-0 (9 KOs estimated, solid power in wins)
Recent Form
Mykquan Williams (Mixed but active; 3-1-1 in last 5): The 27-year-old from East Hartford has shown flashes of brilliance with sharp boxing and counterpunching. Recent highlights include decisions and stoppages against solid opposition (e.g., TKO over Luis Feliciano in 2024, wins over Lavisas Williams and Willmank Canonico Brito). However, draws and a loss in competitive bouts have tempered his undefeated hype. Williams excels in mid-range exchanges and defense but can be drawn into wars.
Jair Valtierra (Strong recent; 4-1 in last 5 with 1 NC): At just 24, Valtierra has matured quickly, rebounding from early setbacks with a unanimous decision win over Jonathan Navarro (Dec. 2024). Prior losses came against top prospects like Lindolfo Delgado (2023) and Raymond Muratalla (2022), where he showed durability but was outboxed. He’s aggressive, works the body well, and has improved ring generalship.
Injury Report / Status
No significant injuries reported for either fighter. Both expected to be at full strength after making weight (details pending final weigh-in, but no issues anticipated). Williams has a history of activity without major layoffs recently; Valtierra recovered fully from past bouts.
Key Fighter Matchups and Styles
Physical Advantages:
Height/Reach: Valtierra (5’9″, reach ~70-72″) holds a clear edge over Williams (5’6″, 69″ reach), allowing him to jab from distance and control range.
Power vs. Chin: Both have respectable power—Williams with crisp combinations, Valtierra with body shots. Williams has never been stopped; Valtierra durable in losses (went distance against elite prospects).
Style Clash: Williams is a slick, orthodox boxer with excellent footwork, head movement, and counter ability—often compared to a mini-Floyd Mayweather in style. He prefers to pot-shot and frustrate. Valtierra, also orthodox, is a forward-pressure fighter who cuts off the ring, digs to the body, and throws volume. Expect Williams to box and move early, with Valtierra trying to trap him on the ropes for exchanges.
Experience Edge: Williams has faced slightly higher competition and more rounds (139 career rounds). Valtierra’s youth brings hunger but fewer big-stage tests.
X-Factor: Altitude/acclimation neutral in Florida; Williams’ defensive mastery vs. Valtierra’s reach and activity could dictate pace.
This is their first meeting—no prior fight history.
FIGHT ODDS
Jair Valtierra + 500
Mykquan Williams – 750
Odds Courtesy of Sports Odds Direct as of Wednesday, December 17, 2025
