# Kristina Penickova

Kristina Penickova (born September 11, 2009) is an American tennis player. She has a career-high ITF junior combined ranking of No. 3, achieved on 27 January 2025. She and her identical twin sister, Annika Penickova, won the girls' doubles title at the 2025 Australian Open.

## Early life

Penickova was born in Campbell, California, to Tomáš Pěnička and Olga Hostáková. Her parents are both former tennis players from the Czech Republic; her father was ranked as high as No. 884 by the ATP. Her uncle is former Czech ice hockey player Martin Hosták. Her grandparents live in Hradec Králové.
Her identical twin sister, Annika, also plays tennis. Both sisters are coached by their father. They began their careers at Bay Club Courtside in Los Gatos, California, and currently live and train at the USTA National Campus in Orlando, Florida.

## Junior career

In October 2022, Penickova made her ITF Juniors debut at the J60 event in Arequipa, where she reached the final. In February 2023, she and her sister reached the doubles semifinals of the Petits As. Later that year, she competed in the girls' 14&U singles tournament of the Wimbledon Championships and was selected to represent the United States at the ITF World Junior Tennis Finals in Prostějov. In September 2023, she and her sister reached the girls' doubles quarterfinals of the US Open.
In April 2024, she won the J300 Sarawak Cup in Kuching as the top seed. Unseeded at the French Open, she reached the girls' singles semifinals with wins over Emily Sartz-Lunde, Iva Ivanova, Mia Pohánková, and Rose Marie Nijkamp. Later that year, she and her sister participated in the Garden Cup, an exhibition at Madison Square Garden. In January 2025, she reached both the girls' singles and girls' doubles finals of the Australian Open; she was the first American to reach the girls' singles final of the tournament since 2012. In the doubles final, she and her sister won in straight sets against Emerson Jones and Hannah Klugman. She lost the singles final to Wakana Sonobe.

## Professional career

In August 2024, she received a wildcard into the women's singles qualifying competition of the US Open, but lost in the first round. In March 2025, she received a wildcard into the qualifying competition of the Indian Wells Open.

## Performance timelines

Key :
| W | F | SF | QF | #R | RR | Q# | P# | DNQ | A | Z# | PO | G | S | B | NMS | NTI | P | NH |
Only main-draw results in WTA Tour, Grand Slam tournaments, Billie Jean King Cup, United Cup, Hopman Cup and Olympic Games are included in win–loss records.

### Singles

Current through the 2025 Indian Wells Open.
| Tournament | 2024 | 2025 | SR | W–L | Win% |
| Grand Slam tournaments ||||||
| Australian Open | A | A | 0 / 0 | 0–0 | – |
| French Open | A | | 0 / 0 | 0–0 | – |
| Wimbledon | A | | 0 / 0 | 0–0 | – |
| US Open | Q1 | | 0 / 0 | 0–0 | – |
| Win–loss | 0–0 | 0–0 | 0 / 0 | 0–0 | – |
| WTA 1000 tournaments ||||||
| Indian Wells Open | A | Q1 | 0 / 0 | 0–0 | – |
| Win–loss | 0–0 | 0–0 | 0 / 0 | 0–0 | – |

## Junior Grand Slam finals
### Singles: 1 (1 runner-up)

| Result | Year | Tournament | Surface | Opponent | Score |
| Loss | 2025 | Australian Open | Hard | Wakana Sonobe | 0–6, 1–6 |

### Doubles: 1 (1 title)

| Result | Year | Tournament | Surface | Partner | Opponents | Score |
| Win | 2025 | Australian Open | Hard | Annika Penickova | Emerson Jones Hannah Klugman | 6–4, 6–2 |