Mark Anthony Yu Caguioa (born November 19, 1979) is a Filipino former professional basketball player.

He played his whole career for the Barangay Ginebra San Miguel of the Philippine Basketball Association (PBA).

Known as The Spark and as MC47 from his initials and his jersey number, he is also half of "The Fast and The Furious", along with his former backcourt partner, Jayjay Helterbrand.

Expectations were not high as Caguioa started as a role player and backup for superstar Vergel Meneses.

However, after showing strong performances and helping to lead the Kings to the 2001 All-Filipino Cup finals, he became very popular.

[5] With his crossovers, drives to the basket, and penchant for making clutch plays, Caguioa earned the respect and admiration of the Filipino basketball fans.

[6] At the end of his first season, Caguioa became the fourth Ginebra player, after Willie Generalao in 1980, Dondon Ampalayo in 1986 and Marlou Aquino in 1996, to win the Rookie of the Year award.

[9] Ginebra also acquired Eric Menk that season, giving Caguioa a frontcourt partner who could consistently notch double-doubles.

Lucia during the 05–06 Fiesta Conference, he had 19 points, 10 rebounds, four assists and three steals while going up against fellow Eagle Rock HS alumnus Alex Cabagnot.

[37][38][39] Caguioa then won the PBA Best Player of the Conference Award, as he averaged 24.7 points, 4.9 rebounds, and 4.4 assists per game.

[43] Caguioa once again led his team during the 2008 PBA Fiesta Conference, pulling Ginebra from the bottom of the standings with a 39-point performance against the Express.

[58] In the 2008–09 season, Caguioa failed to suit up for Kings due to his therapy in the United States for tendinitis on both knees.

[61] Caguioa made his return in a win over Talk 'N Text during the 2009–10 Philippine Cup, in which he scored eight points in the fourth quarter.

[63] In a match against the Express during the 2010 Fiesta Conference, he hit a referee hard with the ball, resulting in him being given a flagrant foul penalty 2 and being ejected from the game before halftime.

[75] In the Commissioner's Cup, he led Ginebra back to the semis with 30 points and 11 rebounds in a do-or-die Game 3 against the Rain or Shine Elasto Painters.

[82] He then scored a season-high 33 points with nine rebounds in a win over B-Meg, and claimed his second Player of the Week award.

[92][93] For leading Ginebra to the semis, he received a Best Player of the Conference for the Commissioner's Cup with averages of 16.9 points, 6.4 rebounds, 2.4 assists and a steal per game in 32.6 minutes.

[99] Ginebra didn't make it to the finals, as they lost to B-Meg off a putback play from PJ Simon.

[103] Before the start of the 2012–13 season, Ginebra acquired veteran point guard LA Tenorio to join Caguioa in the backcourt, moving Helterbrand to the bench.

[104][105] Against Rain or Shine during the Philippine Cup, the new duo joined forces in the clutch to combine for 42 points and start Ginebra off 2–0.

[109] He then had a double-double of 22 points and 11 rebounds in a win over Talk 'N Text despite suffering a cut in his eye early in the first quarter.

[114] In Game 3, he shot poorly making as he was bothered by Rain or Shine's defense, and their campaign in that conference ended.

[133] In Game 1 of their quarterfinals series against Alaska, he committed a flagrant foul penalty 1 on Calvin Abueva.

[139] After a loss to Air21 which caused Ginebra to fall to eighth in the standings, he vented his frustrations about his team on Twitter.

[152] Ginebra also drafted guard Scottie Thompson, which meant he and Helterbrand had to take on mentorship roles.

In a Governors' Cup game against Meralco, he and Helterbrand started a 10–1 run in the third quarter that eventually led to a win.

[155] That conference, Ginebra won six of its first eight games as they were led by Tenorio, Thompson, Japeth Aguilar, Sol Mercado, and replacement import Justin Brownlee.

[160] In the fourth quarter of Game 4, he and Helterbrand came off the bench to lead a 16-point comeback win as they combined to score 19 points.

[176] Several days after they won, Helterbrand retired, officially putting an end to "The Fast and the Furious" era.

[206] He was also considered for the 2013 FIBA Asia Championship, but due to San Miguel Corporation's strict policy of only loaning one player to the national team, LA Tenorio was chosen to represent Ginebra.