John Isner vs Thiago MonteiroPrediction, Head-to-Head Results, and Stats
John Isner and Thiago Monteiro have met 4 times since 2020; John Isner leads 4–0. Their first meeting came at Australian Open - Melbourne in 2020 on hard. On hard courts Isner leads 4–0. Isner has won the last 4 meetings. Across all meetings Isner has taken 10 sets to Monteiro's 2. Their most recent meeting: John Isner won at Delray Beach Open - Delray Beach (2021).
Spread & Straight-Sets Form
Completed best-of-3 matches · Last 12 months
| Indicator | Isner | Monteiro | ||
|---|---|---|---|---|
| Indicator | John Isner | Thiago Monteiro | ||
| Wins in straight sets | — | 58% | 19/33 | |
| Wins a set when losing | — | 50% | 10/20 | |
| Goes to a deciding set | — | 45% | 24/53 | |
| Covers −1.5 sets as favorite | — | 43% | 15/35 | |
| Covers +1.5 sets as underdog | — | 73% | 11/15 | |
| Tiebreak sets won | — | 48% | 11/23 | |
| Wins after taking set 1 | — | 81% | 26/32 | |
| Wins 2-0 after taking set 1 | — | 59% | 19/32 | |
Colored rows are higher-is-better: green above 50%, red below. Favorite/underdog set by book odds; cover rows count only matches with odds on record. Small sample — read with care. Head-to-head: 2 of 2 completed meetings ended in straight sets (Isner 2, Monteiro 0).
Style Matchup
Playing styles and historical archetype record
Isner
🤖 Servebot
Monteiro
🎯 Baseliner
Matchup analysis
The 🤖 Servebot archetype wins about 53% vs 🎯 Baseliner across 1,590 matches in our dataset: a stylistic lean toward John Isner.
Servebot players often use high ace rate and dominant service to pressure the baseliner's precise groundstrokes.
Previous meetings
4 career meetings, newest first
Jan 9, 2021
Delray Beach Open - Delray Beach
H Hard · 2nd Round
Jan 4, 2021
Delray Beach
H Hard · Round of 16
Jan 22, 2020
Australian Open
H Hard · Round of 128
Jan 21, 2020
Australian Open - Melbourne
H Hard · 1st Round
Player ROI
Hypothetical if you put 1u on each player to win every one of their matches · Last 90 days
| Metric | Isner | Monteiro |
|---|---|---|
| W-L | - | 14–7 |
| Avg odds | - | 1.67 |
| ROI % | - | +7.7% |
| Units P/L | - | +1.62u |
Travel
Last 30 days
| Metric | Isner | Monteiro |
|---|---|---|
| Countries | — | 2 |
| Events | — | 2 |
| Matches | — | 4 |
| Distance | — | 673 mi · 1,083 km |
| Route | — | POL → ITA |
Host country from each tournament in the last 30 days, including the current event even when a player arrived on a bye. Route is the order of countries visited; consecutive stops in the same country are shown once. Distance is the great-circle total between host cities, shown only when every stop in the window is geocoded. A rough fatigue signal, not a headline stat.
Recent Form
Last five matches per player
Michael Mmoh
U.S. Open - New York · 2nd Round
Aug 31
Facundo Diaz Acosta
U.S. Open - New York · 1st Round
Aug 29
Jordan Thompson
Western & Southern Open - Cincinnati · 1st Round
Aug 14
Stefanos Tsitsipas
Abierto de Tenis Mifel - Los Cabos · 2nd Round
Aug 2
Rinky Hijikata
Abierto de Tenis Mifel - Los Cabos · 1st Round
Jul 31
Dominik Koepfer
Truist Atlanta Open - Atlanta · 1st Round
Jul 25
Alex Michelsen
Infosys Hall of Fame Open - Newport · Semifinals
Jul 22
Tommy Paul
Infosys Hall of Fame Open - Newport · Quarterfinals
Jul 21
Elmer Moller
Braga Challenger · 1st Round
Oct 5
Mika Petkovic
Genoa 2 Challenger · 1st Round
Sep 22
Nikolas Sanchez Izquierdo
Szczecin Challenger · Final
Sep 20
Marco Trungelliti
Szczecin Challenger · Semifinals
Sep 19
Diego Dedura
Szczecin Challenger · Quarterfinals
Sep 18
Vitaliy Sachko
Szczecin Challenger · 2nd Round
Sep 16
Stefano Travaglia
Szczecin Challenger · 1st Round
Sep 14
Joao Lucas Reis Da Silva
Tulln Challenger · 2nd Round
Sep 10
Rivalry momentum
Cumulative head-to-head lead over time
Win rate
Matches, sets and games won · Last 12 months · 53–53 matches
| Metric | Isner | Monteiro |
|---|---|---|
| Matches won | - | 62% |
| Sets won | - | 58% |
| Games won | - | 53% |
Record by tier
Head-to-head record by tournament tier
| Stage | Isner | Monteiro |
|---|---|---|
| Grand Slam | 2 | 0 |
| ATP 250 | 2 | 0 |
By surface
Head-to-head record per surface
| Surface | Isner | Monteiro |
|---|---|---|
| Hard | 4 | 0 |
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