H2H data updated: 2026-09-01 00:00 UTC
Mariano Puerta holds a 2–1 lead over Julian Alonso in their ATP head-to-head. Across 3 main-draw meetings, Mariano Puerta leads 2–1 on clay. Most recently, Mariano Puerta won the 2000 Croatia Open Umag round of 32 6-4 6-1.
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| Player | Score | Player | Match Data | Date | Round | Tournament | Category | Surface |
|---|---|---|---|---|---|---|---|---|
| Mariano Puerta | 6-4 6-1 | Julian Alonso | Match data | Jul 20, 2000* | R32 | Croatia Open Umag | ATP International Series → modern equivalent ATP 250 | Clay |
| Mariano Puerta | 7-5 7-6(3) | Julian Alonso | Match data | Apr 26, 2000* | R64 | Barcelona Open | ATP International Series Gold → modern equivalent ATP 500 | Clay |
| Julian Alonso | 6-4 6-2 | Mariano Puerta | Match data | Nov 8, 1997* | QF | Chile Open | World Series → modern equivalent ATP 250 | Clay |
Estimated match date where the exact historical date is unavailable. Arrows show an edition's recorded category and documented modern equivalent; unresolved editions keep their recorded category. Asterisked totals include editions mapped from documented historical predecessor categories. Mapping details.
| Player | Current | Peak | Pts | Elo | W | L | Win % | GS | 1000 including documented historical predecessor categories | Finals | 500 including documented historical predecessor categories | 250 including documented historical predecessor categories | Titles |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mariano Puerta | #1,009 | #9 | 1,834 | 1,893 | 121 | 116 | 51.1% | 0 | 0 | 0 | 0 | 3 | 3 |
| Julian Alonso | #1,269 | #30 | 1,113 | 1,702 | 50 | 64 | 43.9% | 0 | 0 | 0 | 0 | 2 | 2 |
Seasons are aligned by the age each player spent most of that calendar year. GS and Titles are cumulative career totals through that season.
| Age | Mariano Puerta | Julian Alonso | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles | |
| 18 | 1997 | 2–1 | 66.7% | — | 1,531 | 0 | 0 | 1996 | 0–2 | 0.0% | #227 | 1,485 | 0 | 0 |
| 19 | 1998 | 21–12 | 63.6% | #39 | 1,706 | 0 | 1 | 1997 | 21–11 | 65.6% | #36 | 1,702 | 0 | 1 |
| 20 | 1999 | 14–26 | 35.0% | #101 | 1,616 | 0 | 1 | 1998 | 16–31 | 34.0% | #103 | 1,559 | 0 | 2 |
| 21 | 2000 | 39–21 | 65.0% | #21 | 1,725 | 0 | 2 | 1999 | 9–11 | 45.0% | #112 | 1,591 | 0 | 2 |
| 22 | 2001 | 1–12 | 7.7% | #254 | 1,573 | 0 | 2 | 2000 | 4–9 | 30.8% | #170 | 1,543 | 0 | 2 |
| 23 | 2002 | 2–4 | 33.3% | #116 | 1,597 | 0 | 2 | — | — | — | — | — | — | — |
| 24 | 2003 | 5–14 | 26.3% | #118 | 1,522 | 0 | 2 | — | — | — | — | — | — | — |
| 25 | 2004 | 0–1 | 0.0% | #133 | 1,509 | 0 | 2 | — | — | — | — | — | — | — |
| 26 | 2005 | 37–25 | 59.7% | #56 | 1,695 | 0 | 3 | — | — | — | — | — | — | — |
Seasons are aligned by the age each player spent most of that calendar year. Results cover completed main-draw matches. Bold green marks the higher win percentage when both players have at least 5 matches on that surface at the aligned age.
| Age | Mariano Puerta | Julian Alonso | ||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | Hard | Clay | Grass | Carpet | Yr | Hard | Clay | Grass | Carpet | |||||||||||||||||||||||||
| W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | |||
| 18 | 1997 | — | — | — | — | 2 | 1 | 3 | 66.7% | — | — | — | — | — | — | — | — | 1996 | — | — | — | — | 0 | 2 | 2 | 0.0% | — | — | — | — | — | — | — | — |
| 19 | 1998 | 0 | 2 | 2 | 0.0% | 21 | 9 | 30 | 70.0% | 0 | 1 | 1 | 0.0% | — | — | — | — | 1997 | 5 | 3 | 8 | 62.5% | 15 | 7 | 22 | 68.2% | — | — | — | — | 1 | 1 | 2 | 50.0% |
| 20 | 1999 | 6 | 10 | 16 | 37.5% | 8 | 16 | 24 | 33.3% | — | — | — | — | — | — | — | — | 1998 | 3 | 13 | 16 | 18.8% | 13 | 16 | 29 | 44.8% | 0 | 1 | 1 | 0.0% | 0 | 1 | 1 | 0.0% |
| 21 | 2000 | 1 | 6 | 7 | 14.3% | 37 | 13 | 50 | 74.0% | — | — | — | — | 1 | 2 | 3 | 33.3% | 1999 | 1 | 2 | 3 | 33.3% | 8 | 8 | 16 | 50.0% | 0 | 1 | 1 | 0.0% | — | — | — | — |
| 22 | 2001 | 0 | 1 | 1 | 0.0% | 1 | 10 | 11 | 9.1% | 0 | 1 | 1 | 0.0% | — | — | — | — | 2000 | 0 | 4 | 4 | 0.0% | 4 | 5 | 9 | 44.4% | — | — | — | — | — | — | — | — |
| 23 | 2002 | — | — | — | — | 2 | 4 | 6 | 33.3% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 24 | 2003 | 0 | 4 | 4 | 0.0% | 5 | 9 | 14 | 35.7% | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 25 | 2004 | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 26 | 2005 | 6 | 5 | 11 | 54.5% | 28 | 13 | 41 | 68.3% | 0 | 1 | 1 | 0.0% | 3 | 6 | 9 | 33.3% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | — | 13 | 28 | 41 | 31.7% | 104 | 76 | 180 | 57.8% | 0 | 4 | 4 | 0.0% | 4 | 8 | 12 | 33.3% | — | 9 | 22 | 31 | 29.0% | 40 | 38 | 78 | 51.3% | 0 | 2 | 2 | 0.0% | 1 | 2 | 3 | 33.3% |
Seasons are aligned by the age each player spent most of that calendar year. Metrics are precomputed from eligible main-draw results; point-stat values use the available detailed sample. Bold green marks the stronger value when both underlying samples are sufficient. Lower is better for Schedule because a negative value means a tougher schedule. Career Schedule is normalized per 100 matches.
| Age | Mariano Puerta | Julian Alonso | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | Elo | P+ | Serve+ | Return+ | PD | TPW% | Hard Elo | Clay Elo | Grass Elo | Set Win % | Set Margin | Dec. Set | Tiebreak | Pressure+ | Schedule | Yr | Elo | P+ | Serve+ | Return+ | PD | TPW% | Hard Elo | Clay Elo | Grass Elo | Set Win % | Set Margin | Dec. Set | Tiebreak | Pressure+ | Schedule | |
| 18 | 1997 | 1531 | 110.1 | -1.06 | -2.79 | 1.385 | 55.6% | — | +53 | — | 66.7% | +0.67 | — | — | — | +0.12 | 1996 | 1485 | 105.6 | — | — | — | — | — | — | — | 0.0% | -3.00 | — | 0–1 | — | -0.20 |
| 19 | 1998 | 1707 | 136.4 | +1.08 | -0.90 | 1.031 | 50.6% | — | +94 | — | 57.9% | +0.46 | 11–3 (79%) | 6–3 (67%) | — | +0.39 | 1997 | 1703 | 138.3 | — | — | — | — | -90 | +22 | — | 56.8% | +0.63 | 11–3 (79%) | 3–6 (33%) | — | +0.69 |
| 20 | 1999 | 1616 | 129.5 | -1.55 | -1.75 | 0.882 | 47.9% | -40 | +26 | — | 44.0% | -0.45 | 2–11 (15%) | 5–7 (42%) | — | -0.85 | 1998 | 1560 | 120.5 | — | — | — | — | -57 | +95 | — | 36.0% | -0.89 | 6–9 (40%) | 6–11 (35%) | — | +0.24 |
| 21 | 2000 | 1725 | 148.1 | +3.13 | +0.81 | 1.097 | 51.7% | -181 | +130 | — | 67.4% | +0.99 | 6–6 (50%) | 11–6 (65%) | — | -0.20 | 1999 | 1591 | 119.4 | — | — | — | — | -77 | +90 | — | 43.1% | -0.71 | 4–3 (57%) | 5–3 (63%) | — | +0.71 |
| 22 | 2001 | 1574 | 112.2 | -2.77 | -3.94 | 0.719 | 44.5% | — | +105 | — | 22.6% | -1.84 | 1–3 (25%) | 2–2 (50%) | — | -0.43 | 2000 | 1544 | 113.2 | — | — | — | — | -93 | +111 | — | 31.0% | -0.93 | 3–1 (75%) | 2–2 (50%) | — | -0.02 |
| 23 | 2002 | 1598 | 109.4 | -2.76 | -0.53 | 0.832 | 46.1% | — | +65 | — | 35.3% | -1.00 | 1–1 | 1–1 | — | +0.12 | 2001 | 1537 | 101.1 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 24 | 2003 | 1523 | 115.6 | -0.19 | -3.28 | 0.866 | 47.3% | -56 | +90 | — | 29.3% | -1.02 | 1–1 | 1–2 (33%) | — | -0.18 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 25 | 2004 | 1510 | 96.4 | +0.04 | -4.46 | 0.216 | 29.6% | — | — | — | 0.0% | -4.50 | — | — | — | +0.05 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 26 | 2005 | 1696 | 143.6 | +2.78 | -0.80 | 1.046 | 50.6% | -143 | +177 | — | 57.1% | +0.20 | 12–9 (57%) | 21–9 (70%) | — | +2.48 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 30 | 2009 | 1650 | 97.7 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | — | 1893 | 140.7 | +1.26 | -1.01 | 0.980 | 49.7% | -111 | +113 | — | 52.6% | +0.05 | 34–34 (50%) | 47–30 (61%) | 106.2 | +0.64 | — | 1703 | 127.4 | — | — | — | — | -73 | +75 | — | 42.4% | -0.45 | 24–16 (60%) | 16–23 (41%) | 103.1 | +1.25 |
Each player's five most-played main-draw opponents. The current matchup is highlighted when it appears in a player's top five.
| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Gaston Gaudio | 1 | 5 | 6 | Nov 14, 2005 | H2H |
| Juan Antonio Marin | 4 | 2 | 6 | Jul 22, 2005 | H2H |
| Felix Mantilla | 3 | 3 | 6 | May 20, 2005 | H2H |
| Carlos Moya | 3 | 2 | 5 | Apr 13, 2005 | H2H |
| Gustavo Kuerten | 2 | 3 | 5 | Mar 11, 2000 | H2H |
| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Andrea Gaudenzi | 1 | 3 | 4 | Jul 28, 2000 | H2H |
| Francisco Clavet | 0 | 4 | 4 | May 26, 1999 | H2H |
| Carlos Moya | 0 | 4 | 4 | Jul 23, 1998 | H2H |
| Sergi Bruguera | 1 | 2 | 3 | Jul 29, 2000 | H2H |
| Mariano Puerta | 1 | 2 | 3 | Jul 20, 2000 | H2H |