2018 highlight: Beating Alexander Zverev in the Miami Open final to win his first Masters 1000 title.
2018 record: 34 wins against 22 losses.
Trophies won this year: Two (Miami Masters and Atlanta).
Source: ATP.
2018 highlight: Reaching his first major final at the French Open after upsetting second seed Alexander Zverev along the way.
2018 record: 54 wins against 20 losses.
Trophies won this year: Three (Buenos Aires, Lyon, and St. Petersburg).
Source: ATP.
2018 highlight: Reaching the French Open final after beating Madison Keys in an all-American semi.
2018 record: 37 wins against 19 losses.
Trophies won this year: One (Miami Open).
Source: WTA.
2018 highlight: Reaching a career-high ranking as the world's third best male tennis player.
2018 record: 44 wins against 20 losses.
Trophies won this year: One (Queens).
Source: ATP.
2018 highlight: Pulling off a huge Wimbledon upset by toppling the seemingly invincible Roger Federer in straight sets.
2018 record: 47 wins against 19 losses.
Trophies won this year: Two (New York and Vienna).
Source: ATP.
2018 highlight: Beating Serena Williams in straight sets to capture Wimbledon, her third career major.
2018 record: 46 wins against 19 losses.
Trophies won this year: Two (Sydney International and Wimbledon).
Source: WTA.
2018 highlight: Coming back from a set down to beat Sloane Stephens at the WTA Finals.
2018 record: 44 wins against 15 losses.
Trophies won this year: Four (Brisbane International, Dubai, Italian Open, WTA Finals).
Source: WTA.
2018 highlight: Comfortably beating Serena Williams in the US Open final, before signing a massive sponsorship contract with Adidas.
2018 record: 42 wins against 20 losses.
Trophies won this year: Two (Indian Wells Masters and the US Open).
Source: WTA.
2018 highlight: Beating Roger Federer so bad the normally mild-mannered veteran smashed his tennis racket, before surrendering the title to him at the Indian Wells final.
2018 record: 47 wins against 13 losses.
Trophies won this year: Two (Acapulco and the Indian Wells Masters).
Source: ATP.
2018 highlight: Winning the first major of her entire career at the start of the year, the 2018 Australian Open.
2018 record: 41 wins against 17 losses.
Trophies won this year: Three (Australian Open, Eastbourne International, and the China Open).
Source: WTA.
2018 highlight: Ending the year as the best women's player, as well as the ITF world champion.
2018 record: 46 wins against 11 losses.
Trophies won this year: Three (Shenzhen Open, French Open, and the Canadian Open).
Source: WTA.
2018 highlight: Beating an in-form Novak Djokovic to claim the ATP Tour Finals title.
2018 record: 58 wins against 19 losses.
Trophies won this year: Four (Munich, Madrid Masters, Washington, ATP Tour Finals).
Source: ATP.
2018 highlight: Reaching world number one status just months after winning his 20th career major.
2018 record: 48 wins against 10 losses.
Trophies won this year: Four (Australian Open, Rotterdam, Stuttgart, and Basel).
Source: ATP.
2018 highlight: Winning the French Open for the 11th time.
Read more: 3 reasons Rafa Nadal dominates on clay, according to a former Grand Slam champion
2018 record: 45 wins against four losses.
Trophies won this year: Five (Monte Carlo Masters, Barcelona, Rome Masters, French Open, and the Canada Masters).
Source: ATP.
2018 highlight: Overtaking Roger Federer in total career earnings.
2018 record: 53 wins against 12 losses.
Trophies won this year: Four (Wimbledon, the US Open, Cincinnati Masters, and Shanghai Masters).
Source: ATP.
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