Dominik Koepfer vs Jan Choinski — San Luis Potosi CH Semi-final

San Luis Potosi CH · CHALLENGER · Semi-final
GER
Dominik Koepfer
#1085ATP
32 yrs · 180 cm · Left-handed
Last 10 · pre-match
LWWLWLWLWW
2 — 0
Sets
Monday, 3 April 2023
clay
Jan Choinski
GBR
Jan Choinski
#75ATP
1686ELO
1652Clay ELO
$204kYTD
$1.2MCAREER
30 yrs · 196 cm · Right-handed
Last 10 · pre-match
LWWWWWLWLW
Koepfer D.
6-3 6-3
Choinski J.
Koepfer D.
662
Choinski J.
330

Dominik Koepfer defeated Jan Choinski 6-3 6-3 in the San Luis Potosi CH semi-final on clay. The upset overturned the form book — Jan Choinski came in ranked #75, but Dominik Koepfer had arrived on a 7-match winning run.

Key context

Head to head

No previous meetings on record.

Serve vs return

This season
Koepfer D.serving78% hold

wins 62% of points on serve vs Choinski J.

Choinski J.serving74% hold

wins 60% of points on serve vs Koepfer D.

Even serve battle

Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About

Statistics

This season
Koepfer D.Choinski J.
1st serve in·Even
62%
65%
1st serve points won·Even
71%
68%
2nd serve points won·Even
52%
52%
Service points won·Even
64%
62%
Return points won·Even
38%
38%
Break points saved·Even
61%
63%
Aces / match·Even
4.3
4.0
Double faults / match·Dominant
3.4
1.6

Averages over each player's completed matches in the selected window (111 vs 200). ATP, WTA & Challenger.

Clutch

Under pressure
Koepfer D.Choinski J.
Clutch Rating·Clear edge
71
55
Break points saved·Even
94
90
Break points won·Slight edge
28
20
Deciding sets·Slight edge
95
88
Tiebreaks·Dominant
87
41

Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About

Umpiry Score

Pre-match
Koepfer D.
7.0
Strong advantageUmpiry ScorePartial · surface data limited
Choinski J.
6.7
Slight advantageUmpiry ScorePartial · surface data limited
Form & Matchup
5.0No prior meetings
H2H
5.0
9.3
Surface form
7.5
9.07-match win streak
Win streak
7.03-match win streak
Fatigue & Travel
1.8
Minutes 14d
5.8
0.0
3-set count
4.0
7.0
Prev. match
Context
5.0
Defending pts
5.0
Opponent rise
5.0

The Umpiry Score combines match-context factors — matchup, form, fatigue, travel and motivation — into a single 0–10 score, updated daily. Read how it works.

Freshness

Recent load
Koepfer D.Choinski J.
Freshness·
—
55

Choinski J.: 2 days rest · 5 matches, 113 games (7d). Higher means fresher. About

Conditions

Court speed
Mediumbalanced pace
SlowFast
Final
Barrios Vera T.[3]
Koepfer D.
7-667-5
Semi-finals
Barrios Vera T.[3]
Kypson P.
6-46-3
Koepfer D.
Choinski J.
6-36-3
Quarter-finals
Barrios Vera T.[3]
Mpetshi Perricard G.
6-44-66-4
Koepfer D.
Neuchrist M.
4-66-16-4
Kypson P.
Atmane T.
6-26-756-2
Choinski J.
Tirante T.
6-46-4
R16
Neuchrist M.
Olivo R.[4]
6-44-1
Kypson P.
Pacheco Mendez R.
6-36-3
Tirante T.
Comesana F.
6-26-3
Atmane T.
Galarneau A.
7-54-66-4
Barrios Vera T.[3]
Ejupovic E.
3-66-07-64
Mpetshi Perricard G.
Dellien Velasco M.
7-646-3
Choinski J.
Reis Da Silva J.
7-57-5
Koepfer D.
Yevseyev D.
6-36-2
R32
Yevseyev D.
Hardt N.[8]
7-57-61
Ejupovic E.
Pouille L.
6-36-3
Galarneau A.
Bellier A.[2]
6-26-4
Tirante T.
Duckworth J.[1]
7-644-66-3
Mpetshi Perricard G.
Ficovich J.[7]
7-646-3
Kypson P.
Vallejo A.
6-16-3
Neuchrist M.
Jung J.
6-07-63
Barrios Vera T.[3]
Chappell N.
7-656-1
Reis Da Silva J.
Walton A.
6-13-66-4
Atmane T.
Lock B.
2-66-37-5
Comesana F.
Dougaz A.
6-26-2
Choinski J.
Mena F.[5]
4-67-56-2
Dellien Velasco M.
Mejia N.
6-47-65
Pacheco Mendez R.
Noguchi R.[6]
6-27-65
Koepfer D.
Burruchaga R.
6-16-3
Olivo R.[4]
Statham J.
7-56-3