Igor Andreev defeated Juan Monaco 7-5 6-3 in the Spain 5 1 round of 32 on clay. The upset overturned the form book — Juan Monaco came in leading the head-to-head 6–2. Igor Andreev narrowed the head-to-head to 6–3.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2012-02-01 | Vina del Mar | R16 | clay | Juan Monaco | 6-2 6-1 |
| 2012-01-30 | Santiago | R16 | clay | Juan Monaco | 6-2 6-1 |
| 2010-04-25 | Rome Masters | R64 | clay | Juan Monaco | 7-6 7-5 |
| 2008-05-05 | Rome Masters | R32 | clay | Igor Andreev | 4-6 6-1 6-4 |
| 2007-10-15 | Madrid Masters | R64 | clay | Juan Monaco | 6-7 6-0 6-4 |
| 2005-08-22 | New Haven | R64 | hard | Igor Andreev | 6-3 6-4 |
| 2005-05-09 | Hamburg Masters | R64 | clay | Juan Monaco | 6-2 6-7 6-1 |
| 2005-04-18 | Barcelona | R64 | clay | Juan Monaco | 6-3 2-6 6-3 |
Averages over each player's completed matches in the selected window (200 vs 200). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About