Java

import java.util.Arrays;
import java.util.LinkedHashMap;
import java.util.LinkedList;
import java.util.Scanner;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class Race {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        String[] participantsArray = sc.nextLine().split(", ");
        String participants = "";
        LinkedHashMap<String, Integer> linkedHashMap = new LinkedHashMap<>();
        for (int i = 0; i < participantsArray.length; i++) {
            //participants += participantsArray[i] + " ";
            linkedHashMap.putIfAbsent(participantsArray[i], 0);
        }

        String command;
        while (!"end of race".equals(command = sc.nextLine())) {
            StringBuilder name = new StringBuilder();
            int distance = 0;
            Pattern namePattern = Pattern.compile("[A-Za-z]");
            Pattern digitPattern = Pattern.compile("(?<digit>\\d)");

            Matcher nameMatcher = namePattern.matcher(command);
            Matcher digitMatcher = digitPattern.matcher(command);
            while (nameMatcher.find()) {
                name.append(nameMatcher.group());
            }
            while (digitMatcher.find()) {
                distance += Integer.parseInt(digitMatcher.group());
            }
           /* if (participants.contains(name)) {
                linkedHashMap.putIfAbsent(String.valueOf(name), distance);
            }
*/
            if (linkedHashMap.containsKey(name.toString())) {
                int oldDistance = linkedHashMap.get(name.toString());
                distance += oldDistance;
                    linkedHashMap.put(name.toString(), distance);
                }

        }
        int[] counter = {1};
        linkedHashMap.entrySet().
                stream()
                .sorted((e1, e2) -> e2.getValue() - e1.getValue())
                .limit(3)
                .forEach(e -> {
                    if (counter[0] == 1) {
                        System.out.printf("1st place: %s%n", e.getKey());
                    } else if (counter[0] == 2) {
                        System.out.printf("2nd place: %s%n", e.getKey());
                    } else {
                        System.out.printf("3rd place: %s%n", e.getKey());
                    }
                    counter[0] = counter[0] + 1;
                });

    }
}