From the hardcourts of Guatemala City to the hardcourts of Fountain Valley’s Los Caballeros Racquet & Sports Club in Fountain Valley, Max McKennon of Newport Beach enters play at the 117th annual Southern California Junior Sectionals as the player to beat.

Top-seeded in the Boys’ 18-and-under singles division, McKennon is coming off a combined 8-1 mark in singles and doubles at the ITF Junior Grade 3 Copa Mundo Maya by Universidad Galileo tournament last weekend. McKennon fell in the singles final to fellow American Jeffrey Fradkin, and won the doubles with partner Spencer Brachman.

The hard-serving lefty McKennon, a high school senior-to-be, is already signed and sealed for college tennis as he will play for Pac-12 school Arizona State in the fall of 2020. The Sectionals veteran opens up play against Tustin’s Jake Huarte at 8 a.m. at Los Cab on Wednesday. The No. 2 seed in the 18s, Alexander Petrov of Irvine, will open play against Emin Torlic of Corona Del Mar on Wednesday at 12:30 p.m. at Los Cab.

In the Girls’ 18s, top-seeded Anessa Lee of San Marino will play her first-round match at 11:30 at Los Cab against Alicia Carmona Cornejo of Rancho Palos Verdes. No. 2 seed Maia Sung of Rolling Hills will take on Milana Molnar of Ladera Ranch.

Here are some highlights and first-round matches tomorrow for the top two seeds in each division.

Boys’ and Girls’ 18s Doubles:

Boys’ quarterfinal results:

Steinhausen/Pham d. Blinder/Martz, 8-1

Dzhurinskiy/Kulikov d. (3) Poh/Wong, 8-5

Lefevre/Zhou d. Figueira/Feng, 8-5

(1) Khan/Brady d. Huarte/Michulka, 8-3

Semifinals: Friday at 2 p.m.: Steinhausen/Pham vs. Dzhurinskiy/Kulikov, Lefevre/Zhou vs. (1) Khan/Brady at Costa Mesa Tennis Center

Final: Saturday at 4 p.m. at Costa Mesa Tennis Center

Girls’ quarterfinal results:

(2) Kiss/Wagner d. Duffy/McBride, 8-4

Schwartzberg/Woldeab d. Sabile/Tifrea, 8-3

Dunkle/Sung d. (3) Stavropoulos/Wooten, 8-2

(1) Chan/Pursell d. Hill/Nguyen, 8-2

Semifinals: Friday at 3 p.m. (2) Kiss/Wagner vs. Schwartzberg/Woldeab and Dunkle/Sung vs. (1) Chan/Pursell at Costa Mesa Tennis Center

Final: Saturday at 4 p.m. at Coast Mesa Tennis Center

Boys’ and Girls’ 16s:

Griffin Daehnke of San Clemente is the top-seeded Boys’ 16s player and will start his Sectionals campaign bright and early at 8 a.m. at Fountain Valley Tennis Center against Caleb Saltz of Canyon Country. No. 2 Sebastian Gorzny of Irvine will face Ethan Lopez of Alhambra at 12:30 p.m., at the same venue. On the girls’ side, No. 1 Midori Castillo of Bonita takes on fellow San Diegan Deja Brown of El Cajon at 9 a.m. at Costa Mesa Tennis Center, while No. 2 Katie Dodd of Carlsbad faces Camarillo’s Samantha Lei Condevillamar at 2 p.m.

Boys’ and Girls’ 14s:

Andy Nguyen of Long Beach is the one to beat and he will begin his quest for a Sectionals title at 8 a.m. at Great Park in Irvine against Santa Monica’s Jonathan Soeth. No. 2 Alex Michelsen of Aliso Viejo meets Parashar Bharadwaj of Irvine at 11 a.m., also at Great Park. On the girls’ side, top-seed Carla Pacot of Rancho Cucamonga will play Ella Princiotta of Redlands at 8 a.m. at El Dorado Park in Long Beach. No. 2 Madison Shepperson of Mira Loma will take on Nicole Wuelfing of Manhattan Beach at 2 p.m. at El Dorado Park.

Boys’ and Girls’ 12s:

Top-seeded Cayden Wang of Irvine opens up against San Marino’s Peyton Barrett on Wednesday at 8 a.m. at Marina High School. No. 2 Jagger Leach of Laguna Beach will open against Amrith Kodumuri of Burbank at 10 a.m., also at Marina High. On the girls’ side, No. 1 Tianmei Wang of San Marino meets Meleja Horelick of Santa Monica while No. 2 Rachel Lee of will play Samantha Cheng in a battle of San Diego players with both matches taking place at Lakewood Tennis Center.

Boys’ 10s Quarterfinal results:

Ryan Wang d. (7) Kiran Spurling, 6-1, 6-0

(3) Kai Abarca d. (6) Daniel Gamal, 6-2, 6-2

Sohan Koushik d. (8) Connor Dang, 6-2, 5-7, 1-0(7)

(1) Andrew Johnson d. (5) Matteo Huarte, 6-0, 6-4

Semifinals: Saturday at 9:30 a.m.: Johnson of Rancho Palos Verdes will face Koushik of Cerritos and Abarca of Dana Point meets Wang of San Diego in the other semi.

Finals: Sunday at 9 a.m., Los Caballeros Racquet Club.

Girls’ 10s Quarterfinal results:

(2) Sophie Suh d. (8) Daniela Navarro, 6-1, 6-0

(5) Ella Olofson d. Ava Panah, 6-3, 6-0

(4) Sydney Barnhart d. (7) Mia Ben-Zvi, 6-2, 6-1

(1) Thea Frodin d. (6) Reagan Levine, 6-3, 6-3

Semifinals: Saturday at 11:30 a.m.: Olofson of Malibu will face Redondo Beach’s Suh and Barnhard of Ladera Ranch will play Frodin of Woodland Hills.

Finals: Sunday at 9 a.m., Los Caballeros Racquet Club.