1. Pretty Mary Philip Soumya Venkatesan
Effort Vs Elo
Pretty Mary Philip
Soumya Venkatesan

2. Hypothesis
Certain amount of effort is needed to move to a higher range of Elo than a lower range
Hour Rule by Malcolm Gladwell – dedicated practice needed to truly master any skill
A players effort can be measured as a product of the change in Elo and time taken to move to the higher elo rating
Effort = ( 𝐶𝑢𝑟𝑟𝑒𝑛𝑡 𝐸𝑙𝑜 −𝑃𝑟𝑒𝑣𝑖𝑜𝑢𝑠 𝐸𝑙𝑜 𝑃𝑟𝑒𝑣𝑖𝑜𝑢𝑠 𝐸𝑙𝑜 ) ∗(𝐷𝑎𝑡𝑒 𝑜𝑓 𝑐𝑢𝑟𝑟𝑒𝑛𝑡 𝐸𝑙𝑜 −𝐷𝑎𝑡𝑒 𝑜𝑓 𝑃𝑟𝑒𝑣𝑖𝑜𝑢𝑠 𝐸𝑙𝑜)

3. Methodology
Collected Elo rating from year from
Gathered all the elo rating of a player over the period of time
Sorted the data based on the time period
Effort calculated with the change in elo and the time taken to reach that elo
Plotted a chart showing the change in Elo and effort wrt time

4. Results
Effort of Vachier-Lagrave, Maxime

5. Name
Elo
Date-String
Date
effort
eloChange
timeChange
Vachier-Lagrave,Maxime
2198
1/1/01
2213
4/1/01 90
2271
10/1/01
183
2278
1/1/02 92
2302
4/1/02
2358
10/1/02
2348
1/1/03
2382
4/1/03
2412
10/1/03
2427
1/1/04
2434
4/1/04 91
2493
10/1/04
2488
1/1/05
2576
4/1/06
455
2579
10/1/06
2573
1/1/07
2632
4/1/08
456
2705
10/1/12
1644
2742
10/1/13
365
2758
4/1/14
182
2757
10/1/14
1/1/15
2762
4/1/15
10/1/15
2785
1/1/16
2788
4/1/16
2811
10/1/16
2796
1/1/17
2803
4/1/17
2794
10/1/17
2793
1/1/18
2789
4/1/18

6. Effort of Caruana, Fabiano

7. Effort of Mamedyarov, Shakhriyar

8. Effort of Ding, Liren

9. Conclusion Collect data over a fixed interval of time
Further Hypothesis: To standardize the effort
Effort = % 𝑜𝑓 𝑝𝑒𝑜𝑝𝑙𝑒 𝑤ℎ𝑜 𝑟𝑒𝑎𝑐ℎ𝑒𝑑 (𝑎𝑡𝑙𝑒𝑎𝑠𝑡) 𝐸𝑙𝑜 𝐸 0 % 𝑜𝑓 𝑝𝑒𝑜𝑝𝑙𝑒 𝑤ℎ𝑜 𝑟𝑒𝑎𝑐ℎ𝑒𝑑 𝐸𝑙𝑜 𝐸 1 (𝑔𝑖𝑣𝑒𝑛 𝑡ℎ𝑎𝑡 𝑡ℎ𝑒𝑦 𝑟𝑒𝑎𝑐ℎ𝑒𝑑 𝐸 1 )