Not necessarily a guide, but some tips to help achieve Elite (golds) for some of the events...
First off, the character I used that I found was the best was Frank with all of his custom clubs equipped. He had the furthest power attribute and it gave him an accuracy boost, plus a tree/rough boost. The caddie I used was Astrid, whose putt preview works wonders, especially putting being a very hard aspect of this game and a key part.
Secondly, tips for the hardest event in the game, Eruption Cup at the Burning Sands course. It is a compilation of all the Par 3 holes at the Burning Sands course, with ridiculous wind and pin placements. It took me about 1,000 tries / close to 12 hours (No Joke). In order to win the event you must score -3 or above. If you score -3 you will tie for the lead and in this game, tying for the lead counts as a win. Therefore in order to win, you must birdie 3 of the 4 toughest par 3's in the game.
For this event, I used Dominique (all custom clubs equipped) and Astrid.
First Hole - 4 Iron, Backspin and aim it just short of the middle of the front sand arch. Hit the shot about 4/5 in the last power bar. As the ball is on its way towards the pin, employ Dominique's spin ability back left toward the hole, this should leave you with a 5 foot putt up-hill to the left. Sink putt, 1 out of 3 Birdies complete
Second Hole - DO NOT TOUCH THE SETUP AT ALL. Only thing you need to do is add backspin. Should leave you an easy uphill putt, but be careful, if you miss ball will run off green. ***NOTE*** I did not Birdie this hole
Third Hole - 3 Wood, put ball cursor on the left to fade the ball into the hole. Aim for the back right tree and hit about 1/3 in the last power bar. This should leave you with an easy uphill putt. 2 out of 3 Birdies.
Forth Hole - 6 Iron, Put cursor on the left side of the ball to fade the ball around the big rock column in front of you and add backspin. Aim as far to the right you can without hitting the rock column in front of you. Check to see if your yellow ball line is safe. This should leave you with an uphill and to the left putt. Use Astrid's putt preview to make sure your lined up perfectly. Sink it for the win. 3rd and Final Birdie and a score of -3, you will end up tied, but in this game the tie goes to the player.
***NOTES*** I was all out of Golfer and Caddie boost add ons. I used, Accuracy, Strike, and Putting. It will be much easier if you have extra Golfer and Caddie skills to use, but it is doable without.
For challenges where you need to 1 putt each green and can't land on the green from more than 10 yards away, overall score par or better. Best thing to do is to land your approach just slightly off missing the green. Meaning tee shot on par 3's, 2nd shot on par 4's, 3rd shot on par 5's. This way when you hit your approach shot to the green it will only be a short chip shot and you can land it very close to not worry about missing the one putt.
Another tough event is the Woods and Putter event only, I believe its the 2nd to last event. Best thing to do here is make sure you don't hit it into the rough, stay on the fairway. Also, make sure you score well on Par 5's, it a huge opportunity so make sure you take advantage. If you end up short of the green in the rough or the sand trap, add back spin to the shot and miss right outside the strike meter. This makes the ball flub out on the green. Another good tool to use is your 90 foot putter when on the fairway or fringe.
I am doing this off the top of my head right now, but if anybody needs clarification or help on other events, please feel free to message me. Good luck and it is doable