Jack Sock vs Daniel Altmaier, Knoxville Challenger 2021, Quarterfinal

Challenger · Quarterfinal · Hard · Fri 12 Nov

Final

Jack Sock

LostRank #808

Altmaier won in 3 sets · 2h 13m

1–2

Set 16–3

Set 25–7

Set 36–7²

Daniel Altmaier

WinnerRank #60

Venue

Goodfriend Tennis Center

Knoxville, USA· Hard

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

Know how fast this court plays before the first serve

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Altitude

281 m

Above sea level

Indoor venue, weather not factored

Low

Match stats

2h 13m

6Aces8

6Double faults2

73Service points won66

17Service games played16

16Service games won15

16Return games played17

0/10%Break points saved0%0/1

1/1100%Break points converted100%1/1

Head to head

1Sock

1Altmaier

2 meetings

Knoxville ChallengerQuarterfinal · 12 Nov 2021HardThis match
Daniel Altmaier
Sets won: 2Set 1: 3Set 2: 7Set 3: 7⁷
Jack Sock
Sets won: 1Set 1: 6Set 2: 5Set 3: 6²
Delray BeachRound of 32 · 15 Feb 2022Hard
Jack Sock
Sets won: 2Set 1: 2Set 2: 6Set 3: 6
Daniel Altmaier
Sets won: 1Set 1: 6Set 2: 3Set 3: 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.

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Jack Sock vs Daniel Altmaier, Knoxville Challenger 2021, Quarterfinal

Final score

Venue and conditions

Match stats

Head to head

Match research