Caroline Marks wins key heat on Day 4 of Florida Pro

Caroline Marks is certainly familiar with the beach break at Sebastian Inlet.

Sunday, she let a pair of surfers from Hawaii know exactly how it's done.

The 15-year-old, and youngest qualifier ever for the World Tour, blasted the event's highest heat total of 17.17 (out of a possible 20) after unleashing her deadly backhand attack to earn a near-perfect 9.17 (out of a possible 10). She defeated Brisa Hennessy (10.53) and Coco Ho (9.60) in a fourth-round heat at the Ron Jon Florida Pro presented by Sunshine State Florida Lager.

"I felt really good and feel like I have really good energy here, and I'm also just keeping it simple," Marks said. "My board's feeling good and I've talked with my dad looking at the waves, deciding where to sit, but there's not too much of a game plan other than to figure it out in the lineup. I know this wave so well and I'm just stoked to be home while feeling a lot of positive energy and that's carrying into the water."

Marks next faces Australia's Mikaela Greene in Round 5.

Other winners in the QS6,000 event, the largest in North America this year, were top-seeded Tatiana Weston-Webb (13.00), Brazil's Silvana Lima (11.23), France's Pauline Ado (11.93) and a collection of Australians: Claire Bevilacqua, India Robinson, Isabella Nichols and Kelly Andrew.

More:World tour surfers soar on Day 3 of Florida Pro

"It feels really nice to be an enjoying this event and just taking it really mellow while hanging with my dad," Weston-Webb said. "We're down here every morning before my heats and every evening just to stay in the water, but I feel really relaxed in my heats."

More:Caroline Marks returns home to Sebastian Inlet to surf Florida Pro, prepare for world tour

On the men's side of the Florida Pro, top-seeded Evan Geiselman continued to roll, winning his Round 3 heat with a 16.53 total and then holding off Barbados' Joshua Burke 13.00-12.27.

More:Florida Pro surf contest opens a new era

Floridana Beach's Chauncey Robinson and Cam Richards posted identical scores of 12.27 in a Round 4 heat, but Robinson grabbed the win on a tie-breaker (highest-scoring wave). In Round 3, Robinson also won his heat with a 12.07 total.

Vero Beach's Tommy Coleman was eliminated in Round 3.

Action is expected to resume Monday at 8 a.m. after organizers assess wave conditions before moving on.

Ron Jon Florida Pro Women’s QS6,000 Round Four Results:

Heat 1: Tatiana Weston-Webb (HAW) 13.00, Paige Hareb (NZL) 7.34, Sophia Fulton (AUS) 6.73

Heat 2: Claire Bevilacqua (AUS) 11.90, Minori Kawai (JPN) 11.16, Samantha Sibley (USA) 7.64

Heat 3: Caroline Marks (USA) 17.17, Brisa Hennessy (HAW) 10.53, Coco Ho (HAW) 9.60

Heat 4: India Robinson (AUS) 13.23, Mikaela Greene (AUS) 12.07, Sophie McCulloch (AUS) 10.60

Heat 5: Isabella Nichols (AUS) 13.33, Philippa Anderson (AUS) 8.23, Frankie Harrer (DEU) 7.00

Heat 6: Silvana Lima (BRA) 11.23, Bronte Macaulay (AUS) 9.90, Bianca Buitendag (ZAF) 9.07

Heat 7: Pauline Ado (FRA) 11.93, Nao Omura (JPN) 10.87, Zoe McDougall (HAW) 10.24

Heat 8: Keely Andrew (AUS) 13.17, Macy Callaghan (AUS) 10.43, Dominic Barona (ECU) 5.57

Upcoming Ron Jon Florida Pro Women’s QS6,000 Round Five Match-Ups:

Heat 1: Tatiana Weston-Webb (HAW) vs. Minori Kawai (JPN)

Heat 2: Claire Bevilacqua (AUS) vs. Paige Hareb (NZL)

Heat 3: Caroline Marks (USA) vs. Mikaela Greene (AUS)

Heat 4: India Robinson (AUS) vs. Brisa Hennessy (HAW)

Heat 5: Isabella Nichols (AUS) vs. Bronte Macaulay (AUS)

Heat 6: Silvana Lima (BRA) vs. Philippa Anderson (AUS)

Heat 7: Pauline Ado (FRA) vs. Macy Callaghan (AUS)

Heat 8: Keely Andrew (AUS) vs. Nao Omura (JPN)

Florida Pro Men’s QS1,500 Round Three Results:

Heat 1: Evan Geiselman (USA) 16.53, Kevin Schulz (USA) 14.00, Logan Hayes (USA) 13.20, Momoto Tsuzuki (JPN) 9.43

Heat 2: Josh Burke (BRB) 13.60, Tyler Gunter (USA) 12.76, Jackson Butler (USA) 11.60, Manuel Selman (CHL) 11.37

Heat 3: Gabe Kling (USA) 11.23, Giorgio Gomez (USA) 10.10, Colt Ward (USA) 9.50, Derek Gomes (VEN) 7.83

Heat 4: Nolan Rapoza (USA) 18.20, Tomas King (CRI) 13.53, Cory Arrambide (USA) 11.66Ryan Huckabee (USA) 6.77

Heat 5: Cam Richards (USA) 17.57, Lucca Mesinas (PER) 15.67, Blake Speir (USA) 7.10, Asher Nolan (USA) 3.53

Heat 6: Chauncey Robinson (USA) 12.07, , Jake Marshall (USA) 10.23 Lucas Vicente (BRA) 9.57, Elijah Fox (HAW) 9.50

Heat 7: Michael Dunphy (USA) 10.66, Tomas Tudela (PER) 9.46, Roberto Araki (CHL) 8.50, Tommy Coleman (USA) 7.07

Heat 8: David Economos (USA), Daniel Glenn (USA), Austin Neumann (USA), Gabriel Farias (BRA)

Florida Pro Men’s QS1,500 Round Four Results:

Heat 1: Evan Geiselman (USA) 13.00, Josh Burke (BRB) 12.27, Giorgio Gomez (USA) 9.07, Tomas King (CRI)

Heat 2: Kevin Schulz (USA) 15.27, Gabe Kling (USA) 10.50, Nolan Rapoza (USA) 10.33, Tyler Gunter (USA) 7.73

Heat 3: Chauncey Robinson (USA) 12.27, Cam Richards (USA) 12.27, Daniel Glenn (USA) 10.80, Tomas Tudela (PER) 10.57

Heat 4: Lucca Mesinas (PER) 12.76, Jake Marshall (USA) 12.24, Gabriel Farias (BRA) 10.93, Michael Dunphy (USA) 10.93

Upcoming Florida Pro Men’s QS1,500 Quarterfinal Match-Ups:

QF 1: Evan Geiselman (USA) vs. Gabe Kling (USA)

QF 2: Josh Burke (BRB) vs. Kevin Schulz (USA)

QF 3: Chuancey Robinson (USA) vs. Jake Marshall (USA)

QF 4: Cam Richards (USA) vs. Lucca Mesinas (PER)