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 | — | 63% | 20/32 | |
| Wins a set when losing | — | 43% | 9/21 | |
| Goes to a deciding set | — | 40% | 21/53 | |
| Covers −1.5 sets as favorite | — | 43% | 13/30 | |
| Covers +1.5 sets as underdog | — | 54% | 7/13 | |
| Tiebreak sets won | — | 59% | 13/22 | |
| Wins after taking set 1 | — | 84% | 26/31 | |
| Wins 2-0 after taking set 1 | — | 65% | 20/31 | |
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 1,823 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 | - | 4–3 |
| Avg odds | - | 1.75 |
| ROI % | - | +0.1% |
| Units P/L | - | +0.01u |
Small sample: ROI stabilizes with more matches; fewer than 10 in the window is noisy.
Travel
Last 30 days
| Metric | Isner | Monteiro |
|---|---|---|
| Countries | — | 2 |
| Events | — | 2 |
| Matches | — | 3 |
| Distance | — | 1,039 mi · 1,672 km |
| Route | — | GER → POR |
Host country from the tournament each match was played in, over the last 30 days. 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
Mika Petkovic
Porto Challenger · 2nd Round
Sep 2
Kimmer Coppejans
Porto Challenger · 1st Round
Aug 31
Tom Gentzsch
Hagen Challenger · 1st Round
Aug 4
Tommaso Compagnucci
Hagen Challenger · 3rd Round Qualifying
Aug 3
Ivan Gakhov
Hagen Challenger · 1st Round Qualifying
Aug 2
Vilius Gaubas
San Marino Challenger · Quarterfinals
Jul 31
Andrea Pellegrino
San Marino Challenger · 2nd Round
Jul 30
David Jorda Sanchis
San Marino Challenger · 1st Round
Jul 28
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 | - | 60% |
| Sets won | - | 57% |
| Games won | - | 52% |
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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