Chia Sung Chang

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Chia Sung Chang

PrimaryWheelchair (W1) CountryTPE LocationTPE
Primary Rating
858.7
± 150.0
Strong International Level Para Athlete

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

1Total Scores
1Rated Styles
1History Points
Sep 28, 2025Latest Score

Ratings by Style

Wheelchair (W1)
Overall APR
858.7
±150.0
Indoor: —
Outdoor: 858.7 (1 scores)
Scores: 1
Last competition: Sep 28, 2025
≈ 8.587 avg on 122cm/70m
Consistency Score: 86.2%
Based on 12 ends from 1 events
Peak Potential: 878.6 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 4 628 5
WA 720 - 60m Wheelchair (W1) 60.0m 639 6 650 7
WA 720 - 50m Wheelchair (W1) 50.0m 614 4 628 5
WA 720 - 30m Wheelchair (W1) 30.0m 678 13 686 15
WA Indoor 18m - Full Face Wheelchair (W1) 18.0m 572 16 579 19
WA Indoor 25m - Full Face Wheelchair (W1) 25.0m 544 8 554 10
WA 720 - 50m (122cm) Wheelchair (W1) 50.0m 662 9 671 11
WA 720 - 70m (Compound) Wheelchair (W1) 70.0m 614 4 628 5
WA 720 - 60m (Compound) Wheelchair (W1) 60.0m 575 3 594 3
WA 720 - 50m (Compound 6-Ring) Wheelchair (W1) 50.0m 614 4 628 5
WA 720 - 50m (W1) Wheelchair (W1) 50.0m 614 4 628 5
WA 720 - 30m (VI) Wheelchair (W1) 30.0m 678 13 686 15
WA 720 - 40m (122cm) Wheelchair (W1) 40.0m 685 14 691 17
WA 720 - 40m (Compound 6-Ring) Wheelchair (W1) 40.0m 647 7 658 8
WA 720 - 40m (W1) Wheelchair (W1) 40.0m 647 7 658 8
WA 720 - 30m (122cm) Wheelchair (W1) 30.0m 704 25 709 29
WA 720 - 30m (Compound 6-Ring) Wheelchair (W1) 30.0m 678 13 686 15
WA 720 - 30m (W1) Wheelchair (W1) 30.0m 678 13 686 15
WA Indoor 18m - Compound Wheelchair (W1) 18.0m 537 16 539 19
WA Indoor 18m - W1 Wheelchair (W1) 18.0m 572 16 579 19
WA Indoor 18m - VI Wheelchair (W1) 18.0m 572 16 579 19
WA Indoor 18m - Fixed Pins Wheelchair (W1) 18.0m 572 16 579 19
WA Indoor 18m - JOAD Compound U13 Wheelchair (W1) 18.0m 537 16 539 19
WA Indoor 18m - JOAD Compound U15 Wheelchair (W1) 18.0m 537 16 539 19
WA Indoor 18m - JOAD Compound U18 Wheelchair (W1) 18.0m 537 16 539 19

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

Rating history

Not enough data to display — requires results from at least 2 events.

Recent Scores

Showing 1-1 of 1 scores
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Competition scores submitted for this archer
Date Event Round Distance Age Group Style Score X / 10s APR Peak Score Peak APR
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