ATP · ELO ESTIMATE · 2026-09-20

C. H. Tseng vs O. Wallin — prediction

ATP Davis Cup - World Group I
✓ Correct
TSENGWIN PROBABILITYWALLIN
56%
Elo prob.
@1.46
odds · 68% impl.
🎾Serve 63%📈Form 7/10
WHAT THE ESTIMATE IS BASED ON

›Tour Elo: 1780 vs 1741 — favorite by rating

›ATP qualifying / early round · 345 matches in the favorite's track record

›Elo estimate (not the ATP factor model): qualifying draws have no clean main-tour history

WATCH FOR

!Qualifying/soft context: Elo estimate only — read the round context (already-through, lucky loser, dead rubber) from the dossier; it is not a proven edge.

Tour Elo estimate (Challenger/ITF markets, not covered by the factor model). The value edge here is unproven live — it's a reference, not a recommendation. 18+ · gamble responsibly.
@1.80
fair odds
−18.7%
expected value
BREAKDOWN · ELO ESTIMATE

The model makes C. H. Tseng the favorite with a 56% win probability, against O. Wallin's 44% — a tight match, without a wide margin. Converted to odds, that probability is worth about @1.80; the offered odds are around @1.46 (a 68% implied), slightly below the market, so the model is a touch more cautious.

Several factors explain the number: 1780 vs 1741 — favorite by rating; atp qualifying / early round · 345 matches in the favorite's track record; qualifying draws have no clean main-tour history.

Read it with caution. This number does NOT come from the ATP factor model, but from the tour's real Elo: it ranks who is the favorite well, but it is a coarser estimate. Being the favorite is not being the winner: roughly 44 out of every 100 times Wallin wins. And above all, in Challenger/ITF the value edge is not proven live, so treat it as a reference, not an opportunity. Watch out for: Qualifying/soft context: Elo estimate only — read the round context (already-through, lucky loser, dead rubber) from the dossier; it is not a proven edge.. This is informational analysis, not a betting recommendation. 18+ · play responsibly.

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