Chia Sung Chang

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Chia Sung Chang

PrimaryWheelchair (W1) CountryTPE LocationTPE
Primary Rating
857.9
± 108.5
Strong International Level Para Athlete

The ± value is your rating deviation (RD) measuring the uncertainty in the APR.

2Total Scores
1Rated Styles
2History Points
Jul 4, 2026Latest Score

Ratings by Style

Wheelchair (W1)
Overall APR
857.9
±108.5
Indoor: —
Outdoor: 857.9 (2 scores)
Scores: 2
Last competition: Jul 4, 2026
≈ 8.579 avg on 122cm/70m
Consistency Score: 87.0%
Based on 24 ends from 2 events
Peak Potential: 885.0 APR

Consistency measures how closely your arrow distribution matches the expected ASL model for your rating level. Peak Performance is what your rating potential would be with 100% consistency.

Predicted Scores Based on Current Rating

Projected round outcomes by style
Round Distance Current Rating Peak Potential
Score X Score X
WA 720 - 70m Wheelchair (W1) 70.0m 614 4 632 5
WA 720 - 60m Wheelchair (W1) 60.0m 638 6 654 7
WA 720 - 50m Wheelchair (W1) 50.0m 613 4 632 5
WA 720 - 30m Wheelchair (W1) 30.0m 678 13 689 16
WA Indoor 18m - Full Face Wheelchair (W1) 18.0m 572 16 580 21
WA Indoor 25m - Full Face Wheelchair (W1) 25.0m 543 8 557 11
WA 720 - 50m (122cm) Wheelchair (W1) 50.0m 662 9 675 11
WA 720 - 70m (Compound) Wheelchair (W1) 70.0m 614 4 632 5
WA 720 - 60m (Compound) Wheelchair (W1) 60.0m 574 3 599 4
WA 720 - 50m (Compound 6-Ring) Wheelchair (W1) 50.0m 613 4 632 5
WA 720 - 50m (W1) Wheelchair (W1) 50.0m 613 4 632 5
WA 720 - 30m (VI) Wheelchair (W1) 30.0m 678 13 689 16
WA 720 - 40m (122cm) Wheelchair (W1) 40.0m 684 14 693 18
WA 720 - 40m (Compound 6-Ring) Wheelchair (W1) 40.0m 647 7 661 9
WA 720 - 40m (W1) Wheelchair (W1) 40.0m 647 7 661 9
WA 720 - 30m (122cm) Wheelchair (W1) 30.0m 704 25 711 30
WA 720 - 30m (Compound 6-Ring) Wheelchair (W1) 30.0m 678 13 689 16
WA 720 - 30m (W1) Wheelchair (W1) 30.0m 678 13 689 16
WA Indoor 18m - Compound Wheelchair (W1) 18.0m 536 16 538 21
WA Indoor 18m - W1 Wheelchair (W1) 18.0m 572 16 580 21
WA Indoor 18m - VI Wheelchair (W1) 18.0m 572 16 580 21
WA Indoor 18m - Fixed Pins Wheelchair (W1) 18.0m 572 16 580 21
WA Indoor 18m - JOAD Compound U13 Wheelchair (W1) 18.0m 536 16 538 21
WA Indoor 18m - JOAD Compound U15 Wheelchair (W1) 18.0m 536 16 538 21
WA Indoor 18m - JOAD Compound U18 Wheelchair (W1) 18.0m 536 16 538 21

Predictions use the APR reference model. Actual scores may vary with conditions.

Rating history

APR ±RD range Style benchmarks
Rating history data is available in the scores table below.

Recent Scores

Showing 1-2 of 2 scores
Show: 25 | 50 | 100 | All scores
Competition scores submitted for this archer
Date ↓ Event Round Distance Age Group Style Score X / 10s APR Peak Score Peak APR
Jul 4, 2026 Nove Mesto 2026 Hyundai World Archery Para Series ↗ WA 720 - 50m (W1) 50.0m Senior Wheelchair (W1) 608 9X
857.3 Standard APR

Standard APR uses your total score and round geometry with the core ASL (arrow score level) model, then applies indoor or field adjustments when rules require them.

How APR works

 632
5X 		885.0
Sep 28, 2025 Gwangju 2025 World Archery Para Championships ↗ WA 720 - 50m (W1) 50.0m — Wheelchair (W1) 615 3X
858.7 Standard APR

Standard APR uses your total score and round geometry with the core ASL (arrow score level) model, then applies indoor or field adjustments when rules require them.

How APR works

i		 628
5X 		878.6