Adolfo Daniel Vallejo vs Andrea Collarini — Antofagasta CH Round of 32

Antofagasta CH · CHALLENGER · Round of 32
Adolfo Daniel Vallejo
PAR
Adolfo Daniel Vallejo
#71ATP
1740ELO
1708Clay ELO
$396kYTD
$653kCAREER
22 yrs · 183 cm · Right-handed
Last 10 · pre-match
LWLLLWLWWW
2 — 1
Sets
Monday, 29 September 2025
clay
Andrea Collarini
ARG
Andrea Collarini
#340ATP
1426ELO
1411Clay ELO
34 yrs · 183 cm · Left-handed
Last 10 · pre-match
LWLWLWLLWL
Vallejo A.
1-6 6-1 6-2
Collarini A.
Vallejo A.
1662
Collarini A.
6121

Adolfo Daniel Vallejo defeated Andrea Collarini 1-6 6-1 6-2 in the Antofagasta CH round of 32 on clay. The result followed the form book — Adolfo Daniel Vallejo came in ranked #71, defending last year's final.

Key context

Head to head

No previous meetings on record.

Serve vs return

This season
Vallejo A.serving64% hold

wins 56% of points on serve vs Collarini A.

Collarini A.serving59% hold

wins 54% of points on serve vs Vallejo A.

Baseline battle — serve is shaky, expect plenty of breaks

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
Vallejo A.Collarini A.
1st serve in·Slight edge
61%
68%
1st serve points won·Even
67%
65%
2nd serve points won·Even
50%
50%
Service points won·Even
61%
60%
Return points won·Even
43%
42%
Break points saved·Even
60%
56%
Aces / match·Slight edge
2.5
1.5
Double faults / match·Even
2.8
2.6

Averages over each player's completed matches in the selected window (102 vs 86). ATP, WTA & Challenger.

Clutch

Under pressure
Vallejo A.Collarini A.
Clutch Rating·Dominant
53
11
Break points saved·Clear edge
71
54
Break points won·Clear edge
65
43
Deciding sets·Dominant
85
8
Tiebreaks·Slight edge
0
7

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

Umpiry Score

Pre-match
Vallejo A.
7.1
Strong advantageUmpiry Score
Collarini A.
3.7
Heavy underdogUmpiry Score
  • Recent retirement (−1.5)
Form & Matchup
8.7+297 Clay Elo edge
Surface ELO
1.3Clay Elo 1411
8.9Overall Elo 1740
ELO gap
1.1Overall Elo 1426
5.0No prior meetings
H2H
5.0
3.8
Surface form
5.0
0.0
Win streak
Fatigue & Travel
8.3
Minutes 14d
6.0
3-set count
4.0
9.0
Prev. match
6.0
Context
Defending pts
8.5

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
Vallejo A.Collarini A.
Freshness·
91
—

Vallejo A.: 5 days rest · 2 matches, 32 games (7d). Higher means fresher. About

Conditions

Court speed
Slowlow bounce, long rallies
SlowFast
Final
Garin C.[2]
Diaz Acosta F.
2-66-36-3
Semi-finals
Garin C.[2]
Vallejo A.
7-656-2
Diaz Acosta F.
Reis Da Silva J.
4-66-16-4
Quarter-finals
Reis Da Silva J.
Gomez F.
6-26-2
Diaz Acosta F.
Guillen Meza A.
6-746-26-2
Vallejo A.
Barrios Vera T.[4]
6-36-2
Garin C.[2]
Habib H.[6]
7-6111-66-3
R16
Gomez F.
Nava E.[1]
4-66-46-4
Guillen Meza A.
Pacheco Mendez R.
6-36-2
Diaz Acosta F.
Neumayer L.[7]
6-46-3
Vallejo A.
Thanos A.
6-36-3
Barrios Vera T.[4]
Midon L.
6-26-2
Habib H.[6]
Zarate C.
3-67-646-4
Garin C.[2]
Roncadelli F.
2-66-16-1
Reis Da Silva J.
Bagnis F.
W/O
R32
Gomez F.
Aguilar Cardozo J.
7-56-2
Reis Da Silva J.
Soto M.
6-36-3
Guillen Meza A.
Dellien H.[3]
3-67-606-4
Pacheco Mendez R.
Boscardin Dias P.
6-36-1
Diaz Acosta F.
Kicker N.
7-626-4
Neumayer L.[7]
Torres J.
6-16-0
Vallejo A.
Collarini A.
1-66-16-2
Midon L.
Ambrogi L.
6-44-66-4
Barrios Vera T.[4]
Olivieri G.
6-26-4
Habib H.[6]
Sanchez Izquierdo N.
6-34-66-2
Zarate C.
Nunez D.
6-27-5
Bagnis F.
Maestrelli F.[5]
6-33-66-2
Thanos A.
Dellien Velasco M.
7-56-0
Roncadelli F.
Villanueva G.
6-36-0
Nava E.[1]
Pucinelli De Almeida M.
6-36-4
Garin C.[2]
Torrealba B.
6-36-2