John Isner vs Sebastian Korda, Delray Beach 2021, Quarterfinal

ATP 250 · Quarterfinal · Hard · Mon 11 Jan

Final

John Isner

LostRank #6601.8054%

Korda won in 3 sets · 1h 51m

1–2

Set 13–6

Set 26–4

Set 33–6

Sebastian Korda

WinnerRank #812.1346%Upset

Venue

Delray Beach Tennis Center

Delray Beach, USA· Hard· Stadium

Court speed

What is court speed?

How much the court helps the server, judged from aces and serve points won and adjusted for who played. 100 is the average ATP tournament court that season.

Very slow< 92Monte Carlo, Rome
Slow92–97Roland Garros, Indian Wells
Average97–103US Open, Dubai
Fast103–108Wimbledon, Shanghai
Very fast108+Basel

Challenger and ITF courts usually read lower: partly the venues, partly the balls and conditions at those levels.

How court speed works

Slow

4.6vs last year

Wind

20 km/h

Gentle

Humidity

64%

Moderate

Temperature

25°C

Warm

Altitude

13 m

Sea level

Historical daily weather

Set statistics

Final statistics

Service

13Aces5

1Double faults4

60/8372%1st serve %60%49/81

22/2396%2nd serve %88%28/32

39/6065%1st serve points won82%40/49

12/2352%2nd serve points won59%19/32

4/757%Break points saved83%5/6

14Service games played14

Return

9/4918%1st serve return points35%21/60

13/3241%2nd serve return points48%11/23

1/617%Break points converted43%3/7

14Return games played14

Points

51Service points won59

22Receiver points won32

7Max points in a row6

Games

3Max games in a row5

Isner3

Korda6

15030040040154030404040A

Isner3

Korda5

1501515153015403040

Isner3

Korda4

0150300401540

Isner3

Korda3

1501515301530304030

Isner2

Korda3

015030040

Isner2

Korda2

150300301540154030

Isner1

Korda2

150151515301540

Isner1

Korda1

150300400

Isner0

Korda1

015030040

Head to head

1Isner

2Korda

3 meetings

Hard 1–1Clay 0–1

Delray BeachQuarterfinal · 11 Jan 2021HardThis match
Sebastian Korda
Sets won: 2Set 1: 6Set 2: 4Set 3: 6
John Isner
Sets won: 1Set 1: 3Set 2: 6Set 3: 3
Cincinnati MastersRound of 16 · 18 Aug 2022Hard
John Isner
Sets won: 2Set 1: 7⁷Set 2: 1Set 3: 7⁷
Sebastian Korda
Sets won: 1Set 1: 6³Set 2: 6Set 3: 6⁴
Roland GarrosRound of 64 · 30 Sept 2020Clay
Sebastian Korda
Sets won: 3Set 1: 6Set 2: 6Set 3: 2Set 4: 6
John Isner
Sets won: 1Set 1: 4Set 2: 4Set 3: 6Set 4: 4

Match research

Pro

Everything that shapes this match: each player’s run-in and travel, records side by side, and results against similar opponents and in similar conditions. Better information, better-informed decisions.

Run-inEvery match in the last 28 days, rest days and travel between venues.
Tale of the tapeRecords and serve numbers side by side, filtered by period and surface.
Record by opponent rankingHow each player does against the top 10, top 50 or any ranking range.
Similar conditionsResults in comparable heat, humidity, wind and altitude before scheduled matches.

Get the edge with Pro

John Isner vs Sebastian Korda, Delray Beach 2021, Quarterfinal

Final score

Venue and conditions

Set statistics

Service

Return

Points

Games

Point by point

Head to head

Match research