Updated · Sources: English Wikipedia, WBA Fights Master Scores, Wikipedia (ja), +1
William Foster III is a super featherweight boxer. Record 4-1-0, 1 NC with 1 knockout over 2018–2026 (1 result unknown). William Foster III last fought Joshafat Ortiz on Apr 10, 2026 and the bout was ruled a no contest.
Born—
Country—
DebutApr 28, 2018
Career2018–2026
Rounds boxed45
KO share25%
TitlesWBA CONTINENTAL NORTH AMERICA GOLD SUPER FEATHERWEIGHT 2025
Boxerbook rating1964 ± 190 · inactive since Aug 2025Why here ›
Foster has a win over Edwin De Los Santos, putting the first loss on De Los Santos's career. Foster has a recent win over Brandon Benitez. Foster has wins against Edwin De Los Santos. He has a record of 19 victories against only two losses with 11 knockouts. He is fighting out of New Haven, Connecticut. His nickname is the silent assassin. He has beaten undefeated fighters Sulaiman Segawa, Donald Smith, and Edwin De Los Santos. Last time out he fought against Brandon Benitez in DC and looked very good, controlling the fight from the beginning. William Foster the third has 11 knockouts in 19 wins. Foster has a brother named Kenyon who made his pro debut on the undercard. He fights in an orthodox stance. He has good timing and outstanding footwork.
Quotes (12)
“He's got a win over Edwin De Los Santos. He actually put the first loss on Edwin De Los Santos's career”
“we had him on with the win over Brandon Benitez”
“wins against guys like Edwin De Los Santos”
“an outstanding record of 19 victories against only two losses. 11 of those victories coming by way of knockout”
“Fighting out of New Haven, Connecticut”
“the silent assassin, WILLIAM Foster”
“Sulaiman Segawa, Donald Smith, Edwin De Los Santos, all undefeated. Till they were beaten by Foster”
“Last time out against Brandon Benitez, that was in DC on our air. Foster looking very good in that fight. Kind of controlled it from the beginning”
“William Foster the third has 11 knockouts in 19 wins.”
“To watch your brother, Kenyon Vaya of course, make his pro debut on our undercard tonight”
“William Foster the third coming out orthodox”
“Timing's good, his footwork is outstanding”
Ratings now
Not in any current ranking.
World titles
No world title reigns recorded.
Facts
What is William Foster III's record?
William Foster III's professional record is 4-1-0, 1 NC with 1 knockout (1 result unknown).
When is William Foster III's next fight?
No next fight is confirmed as of 21 Oct 2026.
Who did William Foster III fight last?
William Foster III last fought Joshafat Ortiz on Apr 10, 2026 and the bout was ruled a no contest.
Sources
Boxerbook ID 20845 · permanent link boxerbook.com/id/20845. Sources: fight records collected by Boxerbook (commissions, official results, press, bookmakers' cards). Spot a mistake? Every bout page has a link to report it.