Vinh Infinity ↔ International Ratings
How the Vietnamese amateur rating maps to NTRP, UTR, ITN — and why your first session is the real calibration.
Why Vinh Infinity?
Our coaches and most Vietnamese amateur players use Vinh Infinity. HCMC tournaments seed brackets by it. International players know NTRP, UTR, or ITN — bridging once at the start is enough.
| Vinh Infinity | NTRP | UTR | ITN | What it looks like |
|---|---|---|---|---|
| 600 | 2.5 | 1–2 | 9 | Holds a rally short, unstable serve, learning footwork. |
| 650 | 3.0 | 2–4 | 8–9 | Rallies 5–10 shots on a good day. Serves go in but no spin. |
| 700 | 3.5 | 4–6 | 7–8 | Solid club player. Consistent groundstrokes. Plays social doubles well. |
| 750 | 4.0 | 6–8 | 6–7 | Strong amateur. Slice, drop, approach all under control. |
| 800 | 4.5 | 7–9 | 5–6 | Wins district-level open events. Tactical maturity. |
| 850 | 5.0 | 9–11 | 4–5 | Ex-competitive level. Full technical toolkit. |
| 900 | 5.0–5.5 | 10–12 | 3–4 | City-level competitor, junior tournament background. |
| 950 | 5.5+ | 12+ | 1–3 | Provincial-level open competitor or former pro junior. |
Mappings are indicative. NTRP carries ±0.5 overlap at each band. Coach assessment on day one is authoritative.
Quick self-assessment
Answer 5 questions for a starting band. Your coach will confirm in your first session.
Your first session is the real test
Self-rating is a starting point. The coach watches your forehand, backhand, serve, return, and movement, then sets your official starting VI.
Book your first session