Quentin Halys vs Tallon GriekspoorIstanbul CH Quarter-final

Istanbul CH · CHALLENGER · Quarter-final
#90ATP
1707ELO
1677Hard ELO
$694kYTD
$5.4MCAREER
29 yrs · 191 cm · Right-handed
Last 10 · pre-match
LWLWLLLWWL
2 — 1
Sets
Monday, 10 September 2018
hard
#57ATP
1789ELO
1777Hard ELO
$970kYTD
$8.1MCAREER
30 yrs · 188 cm · Right-handed
Last 10 · pre-match
LLLWLLWWLW
Halys Q.
6-4 3-6 7-6
Griekspoor T.
Halys Q.
63772
Griekspoor T.
46631

Quentin Halys defeated Tallon Griekspoor 6-4 3-6 7-6 in the Istanbul CH quarter-final on hard. The upset overturned the form book — Tallon Griekspoor came in ranked #57, leading the head-to-head 2–0. Quentin Halys claimed a first win over Tallon Griekspoor in three meetings, narrowing the head-to-head to 2–1.

Key context

  • Match story: Quentin Halys closed it out in three sets, 6–4 3–6 7–6.

Head to head

02
DateTournamentRoundSurfaceWinnerScore
2026-02-09RotterdamR16hardTallon Griekspoor7-5 7-6(11)
2023-02-20DohaR32hardTallon Griekspoor7-6(4) 4-6 7-6(5)

Serve vs return

This season
Halys Q.serving93% hold

wins 73% of points on serve vs Griekspoor T.

Griekspoor T.serving93% hold

wins 72% of points on serve vs Halys Q.

Serve-dominated — both hold easily, expect tiebreaks

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

Serve & return on hard

Halys Q.Griekspoor T.
39
Serve
51
26
Return
0

Per-surface Serve / Return Rating (0–100, percentile within the hard field, opponent-adjusted over 52 weeks). About

Statistics

This season
1st serve in·Slight edge
58%
64%
1st serve points won·Even
79%
75%
2nd serve points won·Even
51%
52%
Service points won·Even
67%
67%
Return points won·Even
34%
33%
Break points saved·Even
65%
65%
Aces / match·Clear edge
11.1
8.6
Double faults / match·Slight edge
3.9
3.2

Averages over each player's completed matches in the selected window (200 vs 198). ATP, WTA & Challenger.

Clutch

Under pressure
Clutch Rating·Clear edge
57
76
Break points saved·Even
97
99
Break points won·Dominant
4
34
Deciding sets·Clear edge
75
94
Tiebreaks·Slight edge
91
97

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

Freshness

Recent load
Freshness·Even
93
96

Halys Q.: 12 days rest · 2 matches (14d) · Griekspoor T.: 14 days rest · 1 match (14d). Higher means fresher. About

Conditions

Court speed
Medium-slowfavours grinders
SlowFast