Rating overview
Doubles
Latest μ
1,805
+108.3
- Lifetime high
- 1,894 · Oct 20, 2023
- Lifetime low
- 1,490 · Mar 1, 2023
- Cadence
- weekly
- Sample size
- 33
Jia Han ZHANG
Country: CHN
Jia Han ZHANG
Doubles rating
1,611
Δ -7.2 recent
Matches tracked
77
Across rated competitions
Volatility
70
σ (lower is steadier)
Offset in effect: -220
Raw rating before offsets: 1,831. This ladder currently uses a baseline adjustment until inter-division data accumulates.
Learn how OpenRating calibrates ladders →Volatility
Consistency snapshot
- σ now
- 70
- 30 day change
- 0.0
- Inactive streak
- 98 days
- Status
- High
Recent streaks
- Win streakMar 6, 2025 – Mar 8, 2025 · 48 matches · Δ +431.6
- Losing stretchMar 2, 2024 – Mar 7, 2024 · 10 matches · Δ -152.4
Form guide
Performance windows
last_30d
0-0
- Matches
- 0
- Net Δ
- 0.0
- Avg Δ
- —
- Opp. μ
- —
- Last event
- —
last_90d
0-0
- Matches
- 0
- Net Δ
- 0.0
- Avg Δ
- —
- Opp. μ
- —
- Last event
- —
last_5_events
0-5
- Matches
- 5
- Net Δ
- -25.0
- Avg Δ
- -5.0
- Opp. μ
- —
- Last event
- Jul 26, 2025
Disciplines
Career breakdown
Doubles
- Matches
- 317
- Record
- 246-71
- Net Δ
- +1798.0
- Current rank
- —
- Best rank
- —
- Last event
- Jul 26, 2025
Milestones
Career highlights
- Reached rating 1894.26Oct 20, 2023 · Δ +4.6
- Largest rating gainOct 3, 2023 · Δ +61.5
- Largest rating dropJul 4, 2024 · Δ -70.6