Brock Richard Purdy defied all odds to transform from the final pick in the NFL draft into one of football's most exceptional young quarterbacks, demonstrating remarkable composure under pressure and elite decision-making that confounded scouts who initially overlooked his abilities. Born December 27, 1999 in Queen Creek, Arizona, Purdy starred at Perry High School in Gilbert, earning Gatorade Football Player of the Year honors and The Arizona Republic's high school player of the year recognition. At Iowa State University (2018-2021), Purdy became a three-time All-Big 12 quarterback while setting 32 school records including career passing touchdowns (81) and total touchdowns (100). His freshman season produced a career-best 169.9 passer rating, sixth-best in all NCAA football. In 2020, he led the Cyclones to a 9-3 record and number nine national ranking, the highest in school history dating to 1895. Purdy's four years at Iowa State marked the program's first four consecutive winning seasons since 1923-1927. He graduated in 2021 with a degree in communication studies.

The San Francisco 49ers selected Purdy with the final pick (262nd overall) of the 2022 draft, making him that year's "Mr. Irrelevant." After injuries to Trey Lance and Jimmy Garoppolo, Purdy assumed the starting role and won all five regular-season starts. On December 11, 2022, he became the only quarterback in his first career start to beat a Tom Brady-led team, defeating Tampa Bay Buccaneers 35-7 with 185 passing yards, two passing touchdowns, and a rushing touchdown. His playoff debut against Seattle Seahawks produced 332 yards and four total touchdowns (three passing, one rushing), the most by a rookie quarterback in playoff history, as San Francisco won 41-23.

The 2023 season saw Purdy earn Pro Bowl honors while leading the NFL in passer rating and guiding the 49ers to Super Bowl LVIII, where they fell to Kansas City Chiefs 25-22 in overtime. Against Tampa Bay on November 19, 2023, he posted a perfect 158.3 passer rating (21-25, 333 yards, three touchdowns), becoming the first 49ers quarterback since Joe Montana in 1989 to achieve perfection. Through his first three NFL seasons, Purdy compiled a 67.9% completion percentage with an elite 104.0 passer rating, throwing 84 touchdowns against just 37 interceptions in regular-season play. His 112.6 passer rating through his first 25 career starts stands as the highest by any NFL quarterback in their first 25 career starts since at least 1970. In 2023, Purdy's 113.0 passer rating led all NFL quarterbacks. He holds NFL records for most games with a passer rating of 120.0 or higher (13 games), 130.0 or higher (10 games), and 140.0 or higher (six games) in a player's first three seasons. His playoff performance proved equally impressive, averaging 218 yards per game with eight touchdowns and four interceptions across eight postseason contests while leading the 49ers to a 5-3 playoff record.

Currently active with the 49ers after signing a five-year, $265 million contract extension in May 2025, Purdy married Jenna Brandt in March 2024 and welcomed their first child in July 2025. A devout Christian who openly discusses his faith, Purdy wears number 13 honoring childhood hero Dan Marino.