USPSA 1439 · GP
Yen-yu Ian Chen
CityPretoria
State–
CountryUnited States
Nov 18, 2017 – Mar 3, 2026
ProductionB
Rankings last 12 months
State
#262 of 577
None
Regional
–
home regional unknown
International
n/a
no matches abroad
Record Rating in detail why the number is what it is
Production #508 of 1,078 worldwide
Stage skill
71.6
hit factor as a percent of the pace that wins an average Production field, fitted from 57 stage results since Oct 19, 2024
Blow-up deduction
−0.0
0 zeroed stages, a rate of 0.1% after a light pull toward the division; a zeroed stage scores nothing, so the skill is cut by that share
Record Rating
71.6 ±6.6
interval 59.8 to 85.7 at two deviations; personal stage noise 22.8% per stage; US level known to ±0.8%
Ordered by
65.3
rating less one deviation; a short record must be exceptional to outrank a long one
Avg % rank
#768
where a plain average of match percent (54.8%) would place them
Class rank
#203
USPSA class order (B), ties by avg %
Every match in the fit, oldest first. Percent is the raw percent of the division winner. Versus stages is how far the day's hit factors ran above or below the measured difficulty of the stages, averaged; best and worst are the single stages. Flagged stages fell more than two personal deviations from expectation and were given reduced weight. Skill is the fitted skill at that match on the random-walk path; the last value, before the blow-up deduction, is the stage skill above.
| Date | Match | Field | Stages | Percent | Vs stages | Best / worst | Flagged | Skill |
|---|---|---|---|---|---|---|---|---|
| Nov 3, 2024 | Magnum United Club Shoot SUNDAY 3 November 2024 | 14 | 6 | 83.0 | +2.2% | +26 / -52 | 1 | 67.6 |
| Feb 8, 2025 | NGPSA HG + PCC L#2: 8-9 February 2024, hosted by MUSC | 32 | 11 | 43.0 | -20.1% | +32 / -53 | 4 | 65.7 |
| Jan 30, 2026 | NGPSA HG-PCC L#1, 30 Jan to 1 Feb 2026 - Wattlespring Sport Shooting Range | 46 | 10 | 52.0 | -3.0% | +22 / -34 | 0 | 70.9 |
| Jan 30, 2026 | NGPSA HG L#1, 30 Jan to 1 Feb 2026 - Wattlespring Sport Shooting Range | 46 | 10 | 52.0 | -3.1% | +22 / -34 | 0 | 70.9 |
| Feb 28, 2026 | NGPSA L#2 Handgun & PCC Feb 28 - 1 March 2026 | 43 | 10 | 57.6 | -0.9% | +48 / -53 | 1 | 71.6 |
| Mar 3, 2026 | NGPSA L#2 Handgun Feb 28 - 1 March 2026 | 43 | 10 | 57.6 | -1.0% | +48 / -53 | 1 | 71.7 |
How Record Rating works explains each step.
Matches
40
Division wins
0
Podiums
2
Avg % of winner
65.8
Majors
21
Form, last 15
Career percent of the division winner, every match
Best finishes fields of 10 or more
- Feb 12, 2022PPPSC February 2022 Club ShootProduction · 5 of 27 · 92%
- Mar 5, 2022Magnum United Club Shoot 5th March 2022 HandgunProduction · 3 of 17 · 91%
- Nov 3, 2024Magnum United Club Shoot SUNDAY 3 November 2024Production · 3 of 14 · 83%
- May 7, 2022Magnum United Club Shoot 7 May 2022 HandgunProduction · 6 of 25 · 80%
- Mar 13, 2021PPPSC MARCH 2021 Club ShootProduction · 8 of 46 · 79%
Head to head same division, 3+ meetings
- Sean RO SwartsRecord Rating 85.4 · #217 of 1,078 in Production9–1625 met
- Onnie KokRecord Rating 98.3 · #53 of 1,078 in Production1–2425 met
- Charles Van WykRecord Rating 81.2 · #246 of 1,078 in Production1–2324 met
- Vanessa De Witnot ranked in Production21–223 met
- IG Govendernot ranked in Production10–1323 met
- Essie SwartsRecord Rating 51.5 · #817 of 1,078 in Production21–122 met
- Tao Jerry Yunot ranked in Production22–022 met
- Joggie RO PrinslooRecord Rating 89.2 · #131 of 1,078 in Production0–2222 met
Match history
-
Mar 3, 2026NGPSA L#2 Handgun Feb 28 - 1 March 2026Magnum United Shooting ClubProduction B23of 4357.6
-
Feb 28, 2026NGPSA L#2 Handgun & PCC Feb 28 - 1 March 2026Magnum United Shooting ClubProduction B23of 4357.6
-
Jan 30, 2026NGPSA HG-PCC L#1, 30 Jan to 1 Feb 2026 - Wattlespring Sport Shooting RangeWattlespring Sport Shooting Range · Level IIProduction B30of 4752.0
-
Jan 30, 2026NGPSA HG L#1, 30 Jan to 1 Feb 2026 - Wattlespring Sport Shooting RangeWattlespring Sport Shooting Range · Level IIProduction B30of 4752.0
-
Feb 8, 2025NGPSA HG + PCC L#2: 8-9 February 2024, hosted by MUSCMagnum United Shooting ClubProduction B29of 3243.0
-
Nov 3, 2024Production X3of 1483.0
-
Jul 13, 2024NGPSA HG L#6 and PCC L#8 Hosted by HPSC- 13-14 July 2024Hartebeespoortdam Shooting Club · Level IIProduction B18of 4163.6
-
Jun 29, 2024NGPSA HG L#5+ PCC L#7: 29 - 30 June 2024, hosted by MUSCMagnum United Shooting Club · Level IIProduction D26of 5059.3
-
Nov 5, 2022NGPSA Handgun Champs Eeufees 5/6 November 2022PMPSC · Level IIProduction B24of 5968.3
-
Sep 30, 2022Production7of 4568.3
-
Jun 9, 2022NGPSA Handgun League 4 Magnum 11/12 June 2022MAGNUM · Level IIProduction B27of 6461.0
-
May 7, 2022Production X6of 2580.4
-
Apr 2, 2022Production X8of 2463.3
-
Mar 12, 2022Production B9of 4864.1
-
Mar 5, 2022Production X3of 1790.7
-
Feb 12, 2022Production X5of 2792.4
-
Sep 25, 2021NGPSA Handgun League MUSC & PPPSC September 2021NGPSA · Level IIProduction B27of 6158.4
-
Apr 10, 2021NGPSA Magnum Handgun LeagueNGPSA · Level IIProduction B20of 5270.8
-
Mar 26, 2021NGPSA SBSC Handgun LeagueSBSC · Level IIProduction B35of 7053.9
-
Mar 13, 2021Production U8of 4678.6
-
Mar 6, 2021Production X10of 1863.8
-
Feb 12, 2021Production X11of 4270.8
-
Feb 6, 2021Production B7of 1766.8
-
Feb 6, 2021Production X30of 5462.3
-
Oct 27, 2020NGPSA Handgun League Champs 2020NGPSA · Level IIProduction B41of 8060.0
-
Feb 2, 2020NGPSA Handgun League 2 HPSCHPSC · Level IIProduction C31of 9168.9
-
Jan 24, 2020NGPSA SBSC Handgun League 1 2020NGPSA · Level IIProduction C23of 7669.0
-
Nov 9, 2019NGPSA Handgun Championships 2019Pretoria Military Practical Shooting Club · Level IIIProduction C29of 6864.9
-
Sep 28, 2019NGPSA Premier Handgun League 8Premier · Level IIProduction C28of 6757.6
-
Aug 23, 2019NGPSA PPPSC Magnum Hangun League 7Pretoria Police Practical Shooting Club · Level IIProduction D59of 9653.7
-
Jul 20, 2019NGPSA PMPSC Handgun League 6PMPSC · Level IIProduction D22of 7674.6
-
May 25, 2019Production P9of 6774.5
-
Mar 16, 2019NGPSA SBSC Handgun League 3SBSC · Level IIProduction D36of 8169.3
-
Feb 16, 2019NGPSA Vektor Handgun League 2Vektor · GP · Level IIProduction D42of 8858.3
-
Nov 9, 2018NGPSA ChampsPmpsc · GP · Level IIProduction D28of 6673.4
-
Oct 20, 2018Production D5of 2773.9
-
Jun 29, 2018Production D42of 9165.1
-
May 19, 2018Production D7of 4974.5
-
Apr 14, 2018NGPSA Handgun League 3HPSC · Level IIProduction D54of 8359.8
-
Nov 18, 2017NGPSA League 9 Hosted by HPSC· Level IIProduction D43of 7752.5
Classifier history 0 runs
- DateClassifierDivisionHit factorTimeHits
- No classifier stages on record.